|  | ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py | 
|  | ; RUN: opt -S -expandmemcmp -mtriple=i686-unknown-unknown   -data-layout=e-m:o-p:32:32-f64:32:64-f80:128-n8:16:32-S128 < %s | FileCheck %s --check-prefix=ALL --check-prefix=X32 | 
|  | ; RUN: opt -S -expandmemcmp -memcmp-num-loads-per-block=1 -mtriple=x86_64-unknown-unknown -data-layout=e-m:o-i64:64-f80:128-n8:16:32:64-S128         < %s | FileCheck %s --check-prefix=ALL --check-prefix=X64 --check-prefix=X64_1LD | 
|  | ; RUN: opt -S -expandmemcmp -memcmp-num-loads-per-block=2 -mtriple=x86_64-unknown-unknown -data-layout=e-m:o-i64:64-f80:128-n8:16:32:64-S128         < %s | FileCheck %s --check-prefix=ALL --check-prefix=X64 --check-prefix=X64_2LD | 
|  |  | 
|  | declare i32 @memcmp(i8* nocapture, i8* nocapture, i64) | 
|  |  | 
|  | define i32 @cmp2(i8* nocapture readonly %x, i8* nocapture readonly %y)  { | 
|  | ; ALL-LABEL: @cmp2( | 
|  | ; ALL-NEXT:    [[TMP1:%.*]] = bitcast i8* [[X:%.*]] to i16* | 
|  | ; ALL-NEXT:    [[TMP2:%.*]] = bitcast i8* [[Y:%.*]] to i16* | 
|  | ; ALL-NEXT:    [[TMP3:%.*]] = load i16, i16* [[TMP1]] | 
|  | ; ALL-NEXT:    [[TMP4:%.*]] = load i16, i16* [[TMP2]] | 
|  | ; ALL-NEXT:    [[TMP5:%.*]] = call i16 @llvm.bswap.i16(i16 [[TMP3]]) | 
|  | ; ALL-NEXT:    [[TMP6:%.*]] = call i16 @llvm.bswap.i16(i16 [[TMP4]]) | 
|  | ; ALL-NEXT:    [[TMP7:%.*]] = zext i16 [[TMP5]] to i32 | 
|  | ; ALL-NEXT:    [[TMP8:%.*]] = zext i16 [[TMP6]] to i32 | 
|  | ; ALL-NEXT:    [[TMP9:%.*]] = sub i32 [[TMP7]], [[TMP8]] | 
|  | ; ALL-NEXT:    ret i32 [[TMP9]] | 
|  | ; | 
|  | %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 2) | 
|  | ret i32 %call | 
|  | } | 
|  |  | 
|  | define i32 @cmp3(i8* nocapture readonly %x, i8* nocapture readonly %y)  { | 
|  | ; ALL-LABEL: @cmp3( | 
|  | ; ALL-NEXT:    br label [[LOADBB:%.*]] | 
|  | ; ALL:       res_block: | 
|  | ; ALL-NEXT:    [[PHI_SRC1:%.*]] = phi i16 [ [[TMP7:%.*]], [[LOADBB]] ] | 
|  | ; ALL-NEXT:    [[PHI_SRC2:%.*]] = phi i16 [ [[TMP8:%.*]], [[LOADBB]] ] | 
|  | ; ALL-NEXT:    [[TMP1:%.*]] = icmp ult i16 [[PHI_SRC1]], [[PHI_SRC2]] | 
|  | ; ALL-NEXT:    [[TMP2:%.*]] = select i1 [[TMP1]], i32 -1, i32 1 | 
|  | ; ALL-NEXT:    br label [[ENDBLOCK:%.*]] | 
|  | ; ALL:       loadbb: | 
|  | ; ALL-NEXT:    [[TMP3:%.*]] = bitcast i8* [[X:%.*]] to i16* | 
|  | ; ALL-NEXT:    [[TMP4:%.*]] = bitcast i8* [[Y:%.*]] to i16* | 
|  | ; ALL-NEXT:    [[TMP5:%.*]] = load i16, i16* [[TMP3]] | 
|  | ; ALL-NEXT:    [[TMP6:%.*]] = load i16, i16* [[TMP4]] | 
|  | ; ALL-NEXT:    [[TMP7]] = call i16 @llvm.bswap.i16(i16 [[TMP5]]) | 
|  | ; ALL-NEXT:    [[TMP8]] = call i16 @llvm.bswap.i16(i16 [[TMP6]]) | 
|  | ; ALL-NEXT:    [[TMP9:%.*]] = icmp eq i16 [[TMP7]], [[TMP8]] | 
|  | ; ALL-NEXT:    br i1 [[TMP9]], label [[LOADBB1:%.*]], label [[RES_BLOCK:%.*]] | 
|  | ; ALL:       loadbb1: | 
|  | ; ALL-NEXT:    [[TMP10:%.*]] = getelementptr i8, i8* [[X]], i8 2 | 
|  | ; ALL-NEXT:    [[TMP11:%.*]] = getelementptr i8, i8* [[Y]], i8 2 | 
|  | ; ALL-NEXT:    [[TMP12:%.*]] = load i8, i8* [[TMP10]] | 
|  | ; ALL-NEXT:    [[TMP13:%.*]] = load i8, i8* [[TMP11]] | 
|  | ; ALL-NEXT:    [[TMP14:%.*]] = zext i8 [[TMP12]] to i32 | 
|  | ; ALL-NEXT:    [[TMP15:%.*]] = zext i8 [[TMP13]] to i32 | 
|  | ; ALL-NEXT:    [[TMP16:%.*]] = sub i32 [[TMP14]], [[TMP15]] | 
|  | ; ALL-NEXT:    br label [[ENDBLOCK]] | 
|  | ; ALL:       endblock: | 
|  | ; ALL-NEXT:    [[PHI_RES:%.*]] = phi i32 [ [[TMP16]], [[LOADBB1]] ], [ [[TMP2]], [[RES_BLOCK]] ] | 
|  | ; ALL-NEXT:    ret i32 [[PHI_RES]] | 
|  | ; | 
|  | %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 3) | 
|  | ret i32 %call | 
|  | } | 
|  |  | 
|  | define i32 @cmp4(i8* nocapture readonly %x, i8* nocapture readonly %y)  { | 
|  | ; ALL-LABEL: @cmp4( | 
|  | ; ALL-NEXT:    [[TMP1:%.*]] = bitcast i8* [[X:%.*]] to i32* | 
|  | ; ALL-NEXT:    [[TMP2:%.*]] = bitcast i8* [[Y:%.*]] to i32* | 
|  | ; ALL-NEXT:    [[TMP3:%.*]] = load i32, i32* [[TMP1]] | 
|  | ; ALL-NEXT:    [[TMP4:%.*]] = load i32, i32* [[TMP2]] | 
|  | ; ALL-NEXT:    [[TMP5:%.*]] = call i32 @llvm.bswap.i32(i32 [[TMP3]]) | 
|  | ; ALL-NEXT:    [[TMP6:%.*]] = call i32 @llvm.bswap.i32(i32 [[TMP4]]) | 
|  | ; ALL-NEXT:    [[TMP7:%.*]] = icmp ugt i32 [[TMP5]], [[TMP6]] | 
|  | ; ALL-NEXT:    [[TMP8:%.*]] = icmp ult i32 [[TMP5]], [[TMP6]] | 
|  | ; ALL-NEXT:    [[TMP9:%.*]] = zext i1 [[TMP7]] to i32 | 
|  | ; ALL-NEXT:    [[TMP10:%.*]] = zext i1 [[TMP8]] to i32 | 
|  | ; ALL-NEXT:    [[TMP11:%.*]] = sub i32 [[TMP9]], [[TMP10]] | 
|  | ; ALL-NEXT:    ret i32 [[TMP11]] | 
|  | ; | 
|  | %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 4) | 
|  | ret i32 %call | 
|  | } | 
|  |  | 
|  | define i32 @cmp5(i8* nocapture readonly %x, i8* nocapture readonly %y)  { | 
|  | ; ALL-LABEL: @cmp5( | 
|  | ; ALL-NEXT:    br label [[LOADBB:%.*]] | 
|  | ; ALL:       res_block: | 
|  | ; ALL-NEXT:    [[PHI_SRC1:%.*]] = phi i32 [ [[TMP7:%.*]], [[LOADBB]] ] | 
|  | ; ALL-NEXT:    [[PHI_SRC2:%.*]] = phi i32 [ [[TMP8:%.*]], [[LOADBB]] ] | 
|  | ; ALL-NEXT:    [[TMP1:%.*]] = icmp ult i32 [[PHI_SRC1]], [[PHI_SRC2]] | 
|  | ; ALL-NEXT:    [[TMP2:%.*]] = select i1 [[TMP1]], i32 -1, i32 1 | 
|  | ; ALL-NEXT:    br label [[ENDBLOCK:%.*]] | 
|  | ; ALL:       loadbb: | 
|  | ; ALL-NEXT:    [[TMP3:%.*]] = bitcast i8* [[X:%.*]] to i32* | 
|  | ; ALL-NEXT:    [[TMP4:%.*]] = bitcast i8* [[Y:%.*]] to i32* | 
|  | ; ALL-NEXT:    [[TMP5:%.*]] = load i32, i32* [[TMP3]] | 
|  | ; ALL-NEXT:    [[TMP6:%.*]] = load i32, i32* [[TMP4]] | 
|  | ; ALL-NEXT:    [[TMP7]] = call i32 @llvm.bswap.i32(i32 [[TMP5]]) | 
|  | ; ALL-NEXT:    [[TMP8]] = call i32 @llvm.bswap.i32(i32 [[TMP6]]) | 
|  | ; ALL-NEXT:    [[TMP9:%.*]] = icmp eq i32 [[TMP7]], [[TMP8]] | 
|  | ; ALL-NEXT:    br i1 [[TMP9]], label [[LOADBB1:%.*]], label [[RES_BLOCK:%.*]] | 
|  | ; ALL:       loadbb1: | 
|  | ; ALL-NEXT:    [[TMP10:%.*]] = getelementptr i8, i8* [[X]], i8 4 | 
|  | ; ALL-NEXT:    [[TMP11:%.*]] = getelementptr i8, i8* [[Y]], i8 4 | 
|  | ; ALL-NEXT:    [[TMP12:%.*]] = load i8, i8* [[TMP10]] | 
|  | ; ALL-NEXT:    [[TMP13:%.*]] = load i8, i8* [[TMP11]] | 
|  | ; ALL-NEXT:    [[TMP14:%.*]] = zext i8 [[TMP12]] to i32 | 
|  | ; ALL-NEXT:    [[TMP15:%.*]] = zext i8 [[TMP13]] to i32 | 
|  | ; ALL-NEXT:    [[TMP16:%.*]] = sub i32 [[TMP14]], [[TMP15]] | 
|  | ; ALL-NEXT:    br label [[ENDBLOCK]] | 
|  | ; ALL:       endblock: | 
|  | ; ALL-NEXT:    [[PHI_RES:%.*]] = phi i32 [ [[TMP16]], [[LOADBB1]] ], [ [[TMP2]], [[RES_BLOCK]] ] | 
|  | ; ALL-NEXT:    ret i32 [[PHI_RES]] | 
|  | ; | 
|  | %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 5) | 
|  | ret i32 %call | 
|  | } | 
|  |  | 
|  | define i32 @cmp6(i8* nocapture readonly %x, i8* nocapture readonly %y)  { | 
|  | ; ALL-LABEL: @cmp6( | 
|  | ; ALL-NEXT:    br label [[LOADBB:%.*]] | 
|  | ; ALL:       res_block: | 
|  | ; ALL-NEXT:    [[PHI_SRC1:%.*]] = phi i32 [ [[TMP7:%.*]], [[LOADBB]] ], [ [[TMP18:%.*]], [[LOADBB1:%.*]] ] | 
|  | ; ALL-NEXT:    [[PHI_SRC2:%.*]] = phi i32 [ [[TMP8:%.*]], [[LOADBB]] ], [ [[TMP19:%.*]], [[LOADBB1]] ] | 
|  | ; ALL-NEXT:    [[TMP1:%.*]] = icmp ult i32 [[PHI_SRC1]], [[PHI_SRC2]] | 
|  | ; ALL-NEXT:    [[TMP2:%.*]] = select i1 [[TMP1]], i32 -1, i32 1 | 
|  | ; ALL-NEXT:    br label [[ENDBLOCK:%.*]] | 
|  | ; ALL:       loadbb: | 
|  | ; ALL-NEXT:    [[TMP3:%.*]] = bitcast i8* [[X:%.*]] to i32* | 
|  | ; ALL-NEXT:    [[TMP4:%.*]] = bitcast i8* [[Y:%.*]] to i32* | 
|  | ; ALL-NEXT:    [[TMP5:%.*]] = load i32, i32* [[TMP3]] | 
|  | ; ALL-NEXT:    [[TMP6:%.*]] = load i32, i32* [[TMP4]] | 
|  | ; ALL-NEXT:    [[TMP7]] = call i32 @llvm.bswap.i32(i32 [[TMP5]]) | 
|  | ; ALL-NEXT:    [[TMP8]] = call i32 @llvm.bswap.i32(i32 [[TMP6]]) | 
|  | ; ALL-NEXT:    [[TMP9:%.*]] = icmp eq i32 [[TMP7]], [[TMP8]] | 
|  | ; ALL-NEXT:    br i1 [[TMP9]], label [[LOADBB1]], label [[RES_BLOCK:%.*]] | 
|  | ; ALL:       loadbb1: | 
|  | ; ALL-NEXT:    [[TMP10:%.*]] = getelementptr i8, i8* [[X]], i8 4 | 
|  | ; ALL-NEXT:    [[TMP11:%.*]] = bitcast i8* [[TMP10]] to i16* | 
|  | ; ALL-NEXT:    [[TMP12:%.*]] = getelementptr i8, i8* [[Y]], i8 4 | 
|  | ; ALL-NEXT:    [[TMP13:%.*]] = bitcast i8* [[TMP12]] to i16* | 
|  | ; ALL-NEXT:    [[TMP14:%.*]] = load i16, i16* [[TMP11]] | 
|  | ; ALL-NEXT:    [[TMP15:%.*]] = load i16, i16* [[TMP13]] | 
|  | ; ALL-NEXT:    [[TMP16:%.*]] = call i16 @llvm.bswap.i16(i16 [[TMP14]]) | 
|  | ; ALL-NEXT:    [[TMP17:%.*]] = call i16 @llvm.bswap.i16(i16 [[TMP15]]) | 
|  | ; ALL-NEXT:    [[TMP18]] = zext i16 [[TMP16]] to i32 | 
|  | ; ALL-NEXT:    [[TMP19]] = zext i16 [[TMP17]] to i32 | 
|  | ; ALL-NEXT:    [[TMP20:%.*]] = icmp eq i32 [[TMP18]], [[TMP19]] | 
|  | ; ALL-NEXT:    br i1 [[TMP20]], label [[ENDBLOCK]], label [[RES_BLOCK]] | 
|  | ; ALL:       endblock: | 
|  | ; ALL-NEXT:    [[PHI_RES:%.*]] = phi i32 [ 0, [[LOADBB1]] ], [ [[TMP2]], [[RES_BLOCK]] ] | 
|  | ; ALL-NEXT:    ret i32 [[PHI_RES]] | 
|  | ; | 
|  | %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 6) | 
|  | ret i32 %call | 
|  | } | 
|  |  | 
|  | define i32 @cmp7(i8* nocapture readonly %x, i8* nocapture readonly %y)  { | 
|  | ; ALL-LABEL: @cmp7( | 
|  | ; ALL-NEXT:    [[CALL:%.*]] = tail call i32 @memcmp(i8* [[X:%.*]], i8* [[Y:%.*]], i64 7) | 
|  | ; ALL-NEXT:    ret i32 [[CALL]] | 
|  | ; | 
|  | %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 7) | 
|  | ret i32 %call | 
|  | } | 
|  |  | 
|  | define i32 @cmp8(i8* nocapture readonly %x, i8* nocapture readonly %y)  { | 
|  | ; X32-LABEL: @cmp8( | 
|  | ; X32-NEXT:    br label [[LOADBB:%.*]] | 
|  | ; X32:       res_block: | 
|  | ; X32-NEXT:    [[PHI_SRC1:%.*]] = phi i32 [ [[TMP7:%.*]], [[LOADBB]] ], [ [[TMP16:%.*]], [[LOADBB1:%.*]] ] | 
|  | ; X32-NEXT:    [[PHI_SRC2:%.*]] = phi i32 [ [[TMP8:%.*]], [[LOADBB]] ], [ [[TMP17:%.*]], [[LOADBB1]] ] | 
|  | ; X32-NEXT:    [[TMP1:%.*]] = icmp ult i32 [[PHI_SRC1]], [[PHI_SRC2]] | 
|  | ; X32-NEXT:    [[TMP2:%.*]] = select i1 [[TMP1]], i32 -1, i32 1 | 
|  | ; X32-NEXT:    br label [[ENDBLOCK:%.*]] | 
|  | ; X32:       loadbb: | 
|  | ; X32-NEXT:    [[TMP3:%.*]] = bitcast i8* [[X:%.*]] to i32* | 
|  | ; X32-NEXT:    [[TMP4:%.*]] = bitcast i8* [[Y:%.*]] to i32* | 
|  | ; X32-NEXT:    [[TMP5:%.*]] = load i32, i32* [[TMP3]] | 
|  | ; X32-NEXT:    [[TMP6:%.*]] = load i32, i32* [[TMP4]] | 
|  | ; X32-NEXT:    [[TMP7]] = call i32 @llvm.bswap.i32(i32 [[TMP5]]) | 
|  | ; X32-NEXT:    [[TMP8]] = call i32 @llvm.bswap.i32(i32 [[TMP6]]) | 
|  | ; X32-NEXT:    [[TMP9:%.*]] = icmp eq i32 [[TMP7]], [[TMP8]] | 
|  | ; X32-NEXT:    br i1 [[TMP9]], label [[LOADBB1]], label [[RES_BLOCK:%.*]] | 
|  | ; X32:       loadbb1: | 
|  | ; X32-NEXT:    [[TMP10:%.*]] = getelementptr i8, i8* [[X]], i8 4 | 
|  | ; X32-NEXT:    [[TMP11:%.*]] = bitcast i8* [[TMP10]] to i32* | 
|  | ; X32-NEXT:    [[TMP12:%.*]] = getelementptr i8, i8* [[Y]], i8 4 | 
|  | ; X32-NEXT:    [[TMP13:%.*]] = bitcast i8* [[TMP12]] to i32* | 
|  | ; X32-NEXT:    [[TMP14:%.*]] = load i32, i32* [[TMP11]] | 
|  | ; X32-NEXT:    [[TMP15:%.*]] = load i32, i32* [[TMP13]] | 
|  | ; X32-NEXT:    [[TMP16]] = call i32 @llvm.bswap.i32(i32 [[TMP14]]) | 
|  | ; X32-NEXT:    [[TMP17]] = call i32 @llvm.bswap.i32(i32 [[TMP15]]) | 
|  | ; X32-NEXT:    [[TMP18:%.*]] = icmp eq i32 [[TMP16]], [[TMP17]] | 
|  | ; X32-NEXT:    br i1 [[TMP18]], label [[ENDBLOCK]], label [[RES_BLOCK]] | 
|  | ; X32:       endblock: | 
|  | ; X32-NEXT:    [[PHI_RES:%.*]] = phi i32 [ 0, [[LOADBB1]] ], [ [[TMP2]], [[RES_BLOCK]] ] | 
|  | ; X32-NEXT:    ret i32 [[PHI_RES]] | 
|  | ; | 
|  | ; X64-LABEL: @cmp8( | 
|  | ; X64-NEXT:    [[TMP1:%.*]] = bitcast i8* [[X:%.*]] to i64* | 
|  | ; X64-NEXT:    [[TMP2:%.*]] = bitcast i8* [[Y:%.*]] to i64* | 
|  | ; X64-NEXT:    [[TMP3:%.*]] = load i64, i64* [[TMP1]] | 
|  | ; X64-NEXT:    [[TMP4:%.*]] = load i64, i64* [[TMP2]] | 
|  | ; X64-NEXT:    [[TMP5:%.*]] = call i64 @llvm.bswap.i64(i64 [[TMP3]]) | 
|  | ; X64-NEXT:    [[TMP6:%.*]] = call i64 @llvm.bswap.i64(i64 [[TMP4]]) | 
|  | ; X64-NEXT:    [[TMP7:%.*]] = icmp ugt i64 [[TMP5]], [[TMP6]] | 
|  | ; X64-NEXT:    [[TMP8:%.*]] = icmp ult i64 [[TMP5]], [[TMP6]] | 
|  | ; X64-NEXT:    [[TMP9:%.*]] = zext i1 [[TMP7]] to i32 | 
|  | ; X64-NEXT:    [[TMP10:%.*]] = zext i1 [[TMP8]] to i32 | 
|  | ; X64-NEXT:    [[TMP11:%.*]] = sub i32 [[TMP9]], [[TMP10]] | 
|  | ; X64-NEXT:    ret i32 [[TMP11]] | 
|  | ; | 
|  | %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 8) | 
|  | ret i32 %call | 
|  | } | 
|  |  | 
|  | define i32 @cmp9(i8* nocapture readonly %x, i8* nocapture readonly %y)  { | 
|  | ; X32-LABEL: @cmp9( | 
|  | ; X32-NEXT:    [[CALL:%.*]] = tail call i32 @memcmp(i8* [[X:%.*]], i8* [[Y:%.*]], i64 9) | 
|  | ; X32-NEXT:    ret i32 [[CALL]] | 
|  | ; | 
|  | ; X64-LABEL: @cmp9( | 
|  | ; X64-NEXT:    br label [[LOADBB:%.*]] | 
|  | ; X64:       res_block: | 
|  | ; X64-NEXT:    [[PHI_SRC1:%.*]] = phi i64 [ [[TMP7:%.*]], [[LOADBB]] ] | 
|  | ; X64-NEXT:    [[PHI_SRC2:%.*]] = phi i64 [ [[TMP8:%.*]], [[LOADBB]] ] | 
|  | ; X64-NEXT:    [[TMP1:%.*]] = icmp ult i64 [[PHI_SRC1]], [[PHI_SRC2]] | 
|  | ; X64-NEXT:    [[TMP2:%.*]] = select i1 [[TMP1]], i32 -1, i32 1 | 
|  | ; X64-NEXT:    br label [[ENDBLOCK:%.*]] | 
|  | ; X64:       loadbb: | 
|  | ; X64-NEXT:    [[TMP3:%.*]] = bitcast i8* [[X:%.*]] to i64* | 
|  | ; X64-NEXT:    [[TMP4:%.*]] = bitcast i8* [[Y:%.*]] to i64* | 
|  | ; X64-NEXT:    [[TMP5:%.*]] = load i64, i64* [[TMP3]] | 
|  | ; X64-NEXT:    [[TMP6:%.*]] = load i64, i64* [[TMP4]] | 
|  | ; X64-NEXT:    [[TMP7]] = call i64 @llvm.bswap.i64(i64 [[TMP5]]) | 
|  | ; X64-NEXT:    [[TMP8]] = call i64 @llvm.bswap.i64(i64 [[TMP6]]) | 
|  | ; X64-NEXT:    [[TMP9:%.*]] = icmp eq i64 [[TMP7]], [[TMP8]] | 
|  | ; X64-NEXT:    br i1 [[TMP9]], label [[LOADBB1:%.*]], label [[RES_BLOCK:%.*]] | 
|  | ; X64:       loadbb1: | 
|  | ; X64-NEXT:    [[TMP10:%.*]] = getelementptr i8, i8* [[X]], i8 8 | 
|  | ; X64-NEXT:    [[TMP11:%.*]] = getelementptr i8, i8* [[Y]], i8 8 | 
|  | ; X64-NEXT:    [[TMP12:%.*]] = load i8, i8* [[TMP10]] | 
|  | ; X64-NEXT:    [[TMP13:%.*]] = load i8, i8* [[TMP11]] | 
|  | ; X64-NEXT:    [[TMP14:%.*]] = zext i8 [[TMP12]] to i32 | 
|  | ; X64-NEXT:    [[TMP15:%.*]] = zext i8 [[TMP13]] to i32 | 
|  | ; X64-NEXT:    [[TMP16:%.*]] = sub i32 [[TMP14]], [[TMP15]] | 
|  | ; X64-NEXT:    br label [[ENDBLOCK]] | 
|  | ; X64:       endblock: | 
|  | ; X64-NEXT:    [[PHI_RES:%.*]] = phi i32 [ [[TMP16]], [[LOADBB1]] ], [ [[TMP2]], [[RES_BLOCK]] ] | 
|  | ; X64-NEXT:    ret i32 [[PHI_RES]] | 
|  | ; | 
|  | %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 9) | 
|  | ret i32 %call | 
|  | } | 
|  |  | 
|  | define i32 @cmp10(i8* nocapture readonly %x, i8* nocapture readonly %y)  { | 
|  | ; X32-LABEL: @cmp10( | 
|  | ; X32-NEXT:    [[CALL:%.*]] = tail call i32 @memcmp(i8* [[X:%.*]], i8* [[Y:%.*]], i64 10) | 
|  | ; X32-NEXT:    ret i32 [[CALL]] | 
|  | ; | 
|  | ; X64-LABEL: @cmp10( | 
|  | ; X64-NEXT:    br label [[LOADBB:%.*]] | 
|  | ; X64:       res_block: | 
|  | ; X64-NEXT:    [[PHI_SRC1:%.*]] = phi i64 [ [[TMP7:%.*]], [[LOADBB]] ], [ [[TMP18:%.*]], [[LOADBB1:%.*]] ] | 
|  | ; X64-NEXT:    [[PHI_SRC2:%.*]] = phi i64 [ [[TMP8:%.*]], [[LOADBB]] ], [ [[TMP19:%.*]], [[LOADBB1]] ] | 
|  | ; X64-NEXT:    [[TMP1:%.*]] = icmp ult i64 [[PHI_SRC1]], [[PHI_SRC2]] | 
|  | ; X64-NEXT:    [[TMP2:%.*]] = select i1 [[TMP1]], i32 -1, i32 1 | 
|  | ; X64-NEXT:    br label [[ENDBLOCK:%.*]] | 
|  | ; X64:       loadbb: | 
|  | ; X64-NEXT:    [[TMP3:%.*]] = bitcast i8* [[X:%.*]] to i64* | 
|  | ; X64-NEXT:    [[TMP4:%.*]] = bitcast i8* [[Y:%.*]] to i64* | 
|  | ; X64-NEXT:    [[TMP5:%.*]] = load i64, i64* [[TMP3]] | 
|  | ; X64-NEXT:    [[TMP6:%.*]] = load i64, i64* [[TMP4]] | 
|  | ; X64-NEXT:    [[TMP7]] = call i64 @llvm.bswap.i64(i64 [[TMP5]]) | 
|  | ; X64-NEXT:    [[TMP8]] = call i64 @llvm.bswap.i64(i64 [[TMP6]]) | 
|  | ; X64-NEXT:    [[TMP9:%.*]] = icmp eq i64 [[TMP7]], [[TMP8]] | 
|  | ; X64-NEXT:    br i1 [[TMP9]], label [[LOADBB1]], label [[RES_BLOCK:%.*]] | 
|  | ; X64:       loadbb1: | 
|  | ; X64-NEXT:    [[TMP10:%.*]] = getelementptr i8, i8* [[X]], i8 8 | 
|  | ; X64-NEXT:    [[TMP11:%.*]] = bitcast i8* [[TMP10]] to i16* | 
|  | ; X64-NEXT:    [[TMP12:%.*]] = getelementptr i8, i8* [[Y]], i8 8 | 
|  | ; X64-NEXT:    [[TMP13:%.*]] = bitcast i8* [[TMP12]] to i16* | 
|  | ; X64-NEXT:    [[TMP14:%.*]] = load i16, i16* [[TMP11]] | 
|  | ; X64-NEXT:    [[TMP15:%.*]] = load i16, i16* [[TMP13]] | 
|  | ; X64-NEXT:    [[TMP16:%.*]] = call i16 @llvm.bswap.i16(i16 [[TMP14]]) | 
|  | ; X64-NEXT:    [[TMP17:%.*]] = call i16 @llvm.bswap.i16(i16 [[TMP15]]) | 
|  | ; X64-NEXT:    [[TMP18]] = zext i16 [[TMP16]] to i64 | 
|  | ; X64-NEXT:    [[TMP19]] = zext i16 [[TMP17]] to i64 | 
|  | ; X64-NEXT:    [[TMP20:%.*]] = icmp eq i64 [[TMP18]], [[TMP19]] | 
|  | ; X64-NEXT:    br i1 [[TMP20]], label [[ENDBLOCK]], label [[RES_BLOCK]] | 
|  | ; X64:       endblock: | 
|  | ; X64-NEXT:    [[PHI_RES:%.*]] = phi i32 [ 0, [[LOADBB1]] ], [ [[TMP2]], [[RES_BLOCK]] ] | 
|  | ; X64-NEXT:    ret i32 [[PHI_RES]] | 
|  | ; | 
|  | %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 10) | 
|  | ret i32 %call | 
|  | } | 
|  |  | 
|  | define i32 @cmp11(i8* nocapture readonly %x, i8* nocapture readonly %y)  { | 
|  | ; ALL-LABEL: @cmp11( | 
|  | ; ALL-NEXT:    [[CALL:%.*]] = tail call i32 @memcmp(i8* [[X:%.*]], i8* [[Y:%.*]], i64 11) | 
|  | ; ALL-NEXT:    ret i32 [[CALL]] | 
|  | ; | 
|  | %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 11) | 
|  | ret i32 %call | 
|  | } | 
|  |  | 
|  | define i32 @cmp12(i8* nocapture readonly %x, i8* nocapture readonly %y)  { | 
|  | ; X32-LABEL: @cmp12( | 
|  | ; X32-NEXT:    [[CALL:%.*]] = tail call i32 @memcmp(i8* [[X:%.*]], i8* [[Y:%.*]], i64 12) | 
|  | ; X32-NEXT:    ret i32 [[CALL]] | 
|  | ; | 
|  | ; X64-LABEL: @cmp12( | 
|  | ; X64-NEXT:    br label [[LOADBB:%.*]] | 
|  | ; X64:       res_block: | 
|  | ; X64-NEXT:    [[PHI_SRC1:%.*]] = phi i64 [ [[TMP7:%.*]], [[LOADBB]] ], [ [[TMP18:%.*]], [[LOADBB1:%.*]] ] | 
|  | ; X64-NEXT:    [[PHI_SRC2:%.*]] = phi i64 [ [[TMP8:%.*]], [[LOADBB]] ], [ [[TMP19:%.*]], [[LOADBB1]] ] | 
|  | ; X64-NEXT:    [[TMP1:%.*]] = icmp ult i64 [[PHI_SRC1]], [[PHI_SRC2]] | 
|  | ; X64-NEXT:    [[TMP2:%.*]] = select i1 [[TMP1]], i32 -1, i32 1 | 
|  | ; X64-NEXT:    br label [[ENDBLOCK:%.*]] | 
|  | ; X64:       loadbb: | 
|  | ; X64-NEXT:    [[TMP3:%.*]] = bitcast i8* [[X:%.*]] to i64* | 
|  | ; X64-NEXT:    [[TMP4:%.*]] = bitcast i8* [[Y:%.*]] to i64* | 
|  | ; X64-NEXT:    [[TMP5:%.*]] = load i64, i64* [[TMP3]] | 
|  | ; X64-NEXT:    [[TMP6:%.*]] = load i64, i64* [[TMP4]] | 
|  | ; X64-NEXT:    [[TMP7]] = call i64 @llvm.bswap.i64(i64 [[TMP5]]) | 
|  | ; X64-NEXT:    [[TMP8]] = call i64 @llvm.bswap.i64(i64 [[TMP6]]) | 
|  | ; X64-NEXT:    [[TMP9:%.*]] = icmp eq i64 [[TMP7]], [[TMP8]] | 
|  | ; X64-NEXT:    br i1 [[TMP9]], label [[LOADBB1]], label [[RES_BLOCK:%.*]] | 
|  | ; X64:       loadbb1: | 
|  | ; X64-NEXT:    [[TMP10:%.*]] = getelementptr i8, i8* [[X]], i8 8 | 
|  | ; X64-NEXT:    [[TMP11:%.*]] = bitcast i8* [[TMP10]] to i32* | 
|  | ; X64-NEXT:    [[TMP12:%.*]] = getelementptr i8, i8* [[Y]], i8 8 | 
|  | ; X64-NEXT:    [[TMP13:%.*]] = bitcast i8* [[TMP12]] to i32* | 
|  | ; X64-NEXT:    [[TMP14:%.*]] = load i32, i32* [[TMP11]] | 
|  | ; X64-NEXT:    [[TMP15:%.*]] = load i32, i32* [[TMP13]] | 
|  | ; X64-NEXT:    [[TMP16:%.*]] = call i32 @llvm.bswap.i32(i32 [[TMP14]]) | 
|  | ; X64-NEXT:    [[TMP17:%.*]] = call i32 @llvm.bswap.i32(i32 [[TMP15]]) | 
|  | ; X64-NEXT:    [[TMP18]] = zext i32 [[TMP16]] to i64 | 
|  | ; X64-NEXT:    [[TMP19]] = zext i32 [[TMP17]] to i64 | 
|  | ; X64-NEXT:    [[TMP20:%.*]] = icmp eq i64 [[TMP18]], [[TMP19]] | 
|  | ; X64-NEXT:    br i1 [[TMP20]], label [[ENDBLOCK]], label [[RES_BLOCK]] | 
|  | ; X64:       endblock: | 
|  | ; X64-NEXT:    [[PHI_RES:%.*]] = phi i32 [ 0, [[LOADBB1]] ], [ [[TMP2]], [[RES_BLOCK]] ] | 
|  | ; X64-NEXT:    ret i32 [[PHI_RES]] | 
|  | ; | 
|  | %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 12) | 
|  | ret i32 %call | 
|  | } | 
|  |  | 
|  | define i32 @cmp13(i8* nocapture readonly %x, i8* nocapture readonly %y)  { | 
|  | ; ALL-LABEL: @cmp13( | 
|  | ; ALL-NEXT:    [[CALL:%.*]] = tail call i32 @memcmp(i8* [[X:%.*]], i8* [[Y:%.*]], i64 13) | 
|  | ; ALL-NEXT:    ret i32 [[CALL]] | 
|  | ; | 
|  | %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 13) | 
|  | ret i32 %call | 
|  | } | 
|  |  | 
|  | define i32 @cmp14(i8* nocapture readonly %x, i8* nocapture readonly %y)  { | 
|  | ; ALL-LABEL: @cmp14( | 
|  | ; ALL-NEXT:    [[CALL:%.*]] = tail call i32 @memcmp(i8* [[X:%.*]], i8* [[Y:%.*]], i64 14) | 
|  | ; ALL-NEXT:    ret i32 [[CALL]] | 
|  | ; | 
|  | %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 14) | 
|  | ret i32 %call | 
|  | } | 
|  |  | 
|  | define i32 @cmp15(i8* nocapture readonly %x, i8* nocapture readonly %y)  { | 
|  | ; ALL-LABEL: @cmp15( | 
|  | ; ALL-NEXT:    [[CALL:%.*]] = tail call i32 @memcmp(i8* [[X:%.*]], i8* [[Y:%.*]], i64 15) | 
|  | ; ALL-NEXT:    ret i32 [[CALL]] | 
|  | ; | 
|  | %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 15) | 
|  | ret i32 %call | 
|  | } | 
|  |  | 
|  | define i32 @cmp16(i8* nocapture readonly %x, i8* nocapture readonly %y)  { | 
|  | ; X32-LABEL: @cmp16( | 
|  | ; X32-NEXT:    [[CALL:%.*]] = tail call i32 @memcmp(i8* [[X:%.*]], i8* [[Y:%.*]], i64 16) | 
|  | ; X32-NEXT:    ret i32 [[CALL]] | 
|  | ; | 
|  | ; X64-LABEL: @cmp16( | 
|  | ; X64-NEXT:    br label [[LOADBB:%.*]] | 
|  | ; X64:       res_block: | 
|  | ; X64-NEXT:    [[PHI_SRC1:%.*]] = phi i64 [ [[TMP7:%.*]], [[LOADBB]] ], [ [[TMP16:%.*]], [[LOADBB1:%.*]] ] | 
|  | ; X64-NEXT:    [[PHI_SRC2:%.*]] = phi i64 [ [[TMP8:%.*]], [[LOADBB]] ], [ [[TMP17:%.*]], [[LOADBB1]] ] | 
|  | ; X64-NEXT:    [[TMP1:%.*]] = icmp ult i64 [[PHI_SRC1]], [[PHI_SRC2]] | 
|  | ; X64-NEXT:    [[TMP2:%.*]] = select i1 [[TMP1]], i32 -1, i32 1 | 
|  | ; X64-NEXT:    br label [[ENDBLOCK:%.*]] | 
|  | ; X64:       loadbb: | 
|  | ; X64-NEXT:    [[TMP3:%.*]] = bitcast i8* [[X:%.*]] to i64* | 
|  | ; X64-NEXT:    [[TMP4:%.*]] = bitcast i8* [[Y:%.*]] to i64* | 
|  | ; X64-NEXT:    [[TMP5:%.*]] = load i64, i64* [[TMP3]] | 
|  | ; X64-NEXT:    [[TMP6:%.*]] = load i64, i64* [[TMP4]] | 
|  | ; X64-NEXT:    [[TMP7]] = call i64 @llvm.bswap.i64(i64 [[TMP5]]) | 
|  | ; X64-NEXT:    [[TMP8]] = call i64 @llvm.bswap.i64(i64 [[TMP6]]) | 
|  | ; X64-NEXT:    [[TMP9:%.*]] = icmp eq i64 [[TMP7]], [[TMP8]] | 
|  | ; X64-NEXT:    br i1 [[TMP9]], label [[LOADBB1]], label [[RES_BLOCK:%.*]] | 
|  | ; X64:       loadbb1: | 
|  | ; X64-NEXT:    [[TMP10:%.*]] = getelementptr i8, i8* [[X]], i8 8 | 
|  | ; X64-NEXT:    [[TMP11:%.*]] = bitcast i8* [[TMP10]] to i64* | 
|  | ; X64-NEXT:    [[TMP12:%.*]] = getelementptr i8, i8* [[Y]], i8 8 | 
|  | ; X64-NEXT:    [[TMP13:%.*]] = bitcast i8* [[TMP12]] to i64* | 
|  | ; X64-NEXT:    [[TMP14:%.*]] = load i64, i64* [[TMP11]] | 
|  | ; X64-NEXT:    [[TMP15:%.*]] = load i64, i64* [[TMP13]] | 
|  | ; X64-NEXT:    [[TMP16]] = call i64 @llvm.bswap.i64(i64 [[TMP14]]) | 
|  | ; X64-NEXT:    [[TMP17]] = call i64 @llvm.bswap.i64(i64 [[TMP15]]) | 
|  | ; X64-NEXT:    [[TMP18:%.*]] = icmp eq i64 [[TMP16]], [[TMP17]] | 
|  | ; X64-NEXT:    br i1 [[TMP18]], label [[ENDBLOCK]], label [[RES_BLOCK]] | 
|  | ; X64:       endblock: | 
|  | ; X64-NEXT:    [[PHI_RES:%.*]] = phi i32 [ 0, [[LOADBB1]] ], [ [[TMP2]], [[RES_BLOCK]] ] | 
|  | ; X64-NEXT:    ret i32 [[PHI_RES]] | 
|  | ; | 
|  | %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 16) | 
|  | ret i32 %call | 
|  | } | 
|  |  | 
|  | define i32 @cmp_eq2(i8* nocapture readonly %x, i8* nocapture readonly %y)  { | 
|  | ; ALL-LABEL: @cmp_eq2( | 
|  | ; ALL-NEXT:    [[TMP1:%.*]] = bitcast i8* [[X:%.*]] to i16* | 
|  | ; ALL-NEXT:    [[TMP2:%.*]] = bitcast i8* [[Y:%.*]] to i16* | 
|  | ; ALL-NEXT:    [[TMP3:%.*]] = load i16, i16* [[TMP1]] | 
|  | ; ALL-NEXT:    [[TMP4:%.*]] = load i16, i16* [[TMP2]] | 
|  | ; ALL-NEXT:    [[TMP5:%.*]] = icmp ne i16 [[TMP3]], [[TMP4]] | 
|  | ; ALL-NEXT:    [[TMP6:%.*]] = zext i1 [[TMP5]] to i32 | 
|  | ; ALL-NEXT:    [[CMP:%.*]] = icmp eq i32 [[TMP6]], 0 | 
|  | ; ALL-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; ALL-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 2) | 
|  | %cmp = icmp eq i32 %call, 0 | 
|  | %conv = zext i1 %cmp to i32 | 
|  | ret i32 %conv | 
|  | } | 
|  |  | 
|  | define i32 @cmp_eq3(i8* nocapture readonly %x, i8* nocapture readonly %y)  { | 
|  | ; X32-LABEL: @cmp_eq3( | 
|  | ; X32-NEXT:    [[TMP1:%.*]] = bitcast i8* [[X:%.*]] to i16* | 
|  | ; X32-NEXT:    [[TMP2:%.*]] = bitcast i8* [[Y:%.*]] to i16* | 
|  | ; X32-NEXT:    [[TMP3:%.*]] = load i16, i16* [[TMP1]] | 
|  | ; X32-NEXT:    [[TMP4:%.*]] = load i16, i16* [[TMP2]] | 
|  | ; X32-NEXT:    [[TMP5:%.*]] = xor i16 [[TMP3]], [[TMP4]] | 
|  | ; X32-NEXT:    [[TMP6:%.*]] = getelementptr i8, i8* [[X]], i8 2 | 
|  | ; X32-NEXT:    [[TMP7:%.*]] = getelementptr i8, i8* [[Y]], i8 2 | 
|  | ; X32-NEXT:    [[TMP8:%.*]] = load i8, i8* [[TMP6]] | 
|  | ; X32-NEXT:    [[TMP9:%.*]] = load i8, i8* [[TMP7]] | 
|  | ; X32-NEXT:    [[TMP10:%.*]] = zext i8 [[TMP8]] to i16 | 
|  | ; X32-NEXT:    [[TMP11:%.*]] = zext i8 [[TMP9]] to i16 | 
|  | ; X32-NEXT:    [[TMP12:%.*]] = xor i16 [[TMP10]], [[TMP11]] | 
|  | ; X32-NEXT:    [[TMP13:%.*]] = or i16 [[TMP5]], [[TMP12]] | 
|  | ; X32-NEXT:    [[TMP14:%.*]] = icmp ne i16 [[TMP13]], 0 | 
|  | ; X32-NEXT:    [[TMP15:%.*]] = zext i1 [[TMP14]] to i32 | 
|  | ; X32-NEXT:    [[CMP:%.*]] = icmp eq i32 [[TMP15]], 0 | 
|  | ; X32-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X32-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | ; X64_1LD-LABEL: @cmp_eq3( | 
|  | ; X64_1LD-NEXT:    br label [[LOADBB:%.*]] | 
|  | ; X64_1LD:       res_block: | 
|  | ; X64_1LD-NEXT:    br label [[ENDBLOCK:%.*]] | 
|  | ; X64_1LD:       loadbb: | 
|  | ; X64_1LD-NEXT:    [[TMP1:%.*]] = bitcast i8* [[X:%.*]] to i16* | 
|  | ; X64_1LD-NEXT:    [[TMP2:%.*]] = bitcast i8* [[Y:%.*]] to i16* | 
|  | ; X64_1LD-NEXT:    [[TMP3:%.*]] = load i16, i16* [[TMP1]] | 
|  | ; X64_1LD-NEXT:    [[TMP4:%.*]] = load i16, i16* [[TMP2]] | 
|  | ; X64_1LD-NEXT:    [[TMP5:%.*]] = icmp ne i16 [[TMP3]], [[TMP4]] | 
|  | ; X64_1LD-NEXT:    br i1 [[TMP5]], label [[RES_BLOCK:%.*]], label [[LOADBB1:%.*]] | 
|  | ; X64_1LD:       loadbb1: | 
|  | ; X64_1LD-NEXT:    [[TMP6:%.*]] = getelementptr i8, i8* [[X]], i8 2 | 
|  | ; X64_1LD-NEXT:    [[TMP7:%.*]] = getelementptr i8, i8* [[Y]], i8 2 | 
|  | ; X64_1LD-NEXT:    [[TMP8:%.*]] = load i8, i8* [[TMP6]] | 
|  | ; X64_1LD-NEXT:    [[TMP9:%.*]] = load i8, i8* [[TMP7]] | 
|  | ; X64_1LD-NEXT:    [[TMP10:%.*]] = icmp ne i8 [[TMP8]], [[TMP9]] | 
|  | ; X64_1LD-NEXT:    br i1 [[TMP10]], label [[RES_BLOCK]], label [[ENDBLOCK]] | 
|  | ; X64_1LD:       endblock: | 
|  | ; X64_1LD-NEXT:    [[PHI_RES:%.*]] = phi i32 [ 0, [[LOADBB1]] ], [ 1, [[RES_BLOCK]] ] | 
|  | ; X64_1LD-NEXT:    [[CMP:%.*]] = icmp eq i32 [[PHI_RES]], 0 | 
|  | ; X64_1LD-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X64_1LD-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | ; X64_2LD-LABEL: @cmp_eq3( | 
|  | ; X64_2LD-NEXT:    [[TMP1:%.*]] = bitcast i8* [[X:%.*]] to i16* | 
|  | ; X64_2LD-NEXT:    [[TMP2:%.*]] = bitcast i8* [[Y:%.*]] to i16* | 
|  | ; X64_2LD-NEXT:    [[TMP3:%.*]] = load i16, i16* [[TMP1]] | 
|  | ; X64_2LD-NEXT:    [[TMP4:%.*]] = load i16, i16* [[TMP2]] | 
|  | ; X64_2LD-NEXT:    [[TMP5:%.*]] = xor i16 [[TMP3]], [[TMP4]] | 
|  | ; X64_2LD-NEXT:    [[TMP6:%.*]] = getelementptr i8, i8* [[X]], i8 2 | 
|  | ; X64_2LD-NEXT:    [[TMP7:%.*]] = getelementptr i8, i8* [[Y]], i8 2 | 
|  | ; X64_2LD-NEXT:    [[TMP8:%.*]] = load i8, i8* [[TMP6]] | 
|  | ; X64_2LD-NEXT:    [[TMP9:%.*]] = load i8, i8* [[TMP7]] | 
|  | ; X64_2LD-NEXT:    [[TMP10:%.*]] = zext i8 [[TMP8]] to i16 | 
|  | ; X64_2LD-NEXT:    [[TMP11:%.*]] = zext i8 [[TMP9]] to i16 | 
|  | ; X64_2LD-NEXT:    [[TMP12:%.*]] = xor i16 [[TMP10]], [[TMP11]] | 
|  | ; X64_2LD-NEXT:    [[TMP13:%.*]] = or i16 [[TMP5]], [[TMP12]] | 
|  | ; X64_2LD-NEXT:    [[TMP14:%.*]] = icmp ne i16 [[TMP13]], 0 | 
|  | ; X64_2LD-NEXT:    [[TMP15:%.*]] = zext i1 [[TMP14]] to i32 | 
|  | ; X64_2LD-NEXT:    [[CMP:%.*]] = icmp eq i32 [[TMP15]], 0 | 
|  | ; X64_2LD-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X64_2LD-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 3) | 
|  | %cmp = icmp eq i32 %call, 0 | 
|  | %conv = zext i1 %cmp to i32 | 
|  | ret i32 %conv | 
|  | } | 
|  |  | 
|  | define i32 @cmp_eq4(i8* nocapture readonly %x, i8* nocapture readonly %y)  { | 
|  | ; ALL-LABEL: @cmp_eq4( | 
|  | ; ALL-NEXT:    [[TMP1:%.*]] = bitcast i8* [[X:%.*]] to i32* | 
|  | ; ALL-NEXT:    [[TMP2:%.*]] = bitcast i8* [[Y:%.*]] to i32* | 
|  | ; ALL-NEXT:    [[TMP3:%.*]] = load i32, i32* [[TMP1]] | 
|  | ; ALL-NEXT:    [[TMP4:%.*]] = load i32, i32* [[TMP2]] | 
|  | ; ALL-NEXT:    [[TMP5:%.*]] = icmp ne i32 [[TMP3]], [[TMP4]] | 
|  | ; ALL-NEXT:    [[TMP6:%.*]] = zext i1 [[TMP5]] to i32 | 
|  | ; ALL-NEXT:    [[CMP:%.*]] = icmp eq i32 [[TMP6]], 0 | 
|  | ; ALL-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; ALL-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 4) | 
|  | %cmp = icmp eq i32 %call, 0 | 
|  | %conv = zext i1 %cmp to i32 | 
|  | ret i32 %conv | 
|  | } | 
|  |  | 
|  | define i32 @cmp_eq5(i8* nocapture readonly %x, i8* nocapture readonly %y)  { | 
|  | ; X32-LABEL: @cmp_eq5( | 
|  | ; X32-NEXT:    [[TMP1:%.*]] = bitcast i8* [[X:%.*]] to i32* | 
|  | ; X32-NEXT:    [[TMP2:%.*]] = bitcast i8* [[Y:%.*]] to i32* | 
|  | ; X32-NEXT:    [[TMP3:%.*]] = load i32, i32* [[TMP1]] | 
|  | ; X32-NEXT:    [[TMP4:%.*]] = load i32, i32* [[TMP2]] | 
|  | ; X32-NEXT:    [[TMP5:%.*]] = xor i32 [[TMP3]], [[TMP4]] | 
|  | ; X32-NEXT:    [[TMP6:%.*]] = getelementptr i8, i8* [[X]], i8 4 | 
|  | ; X32-NEXT:    [[TMP7:%.*]] = getelementptr i8, i8* [[Y]], i8 4 | 
|  | ; X32-NEXT:    [[TMP8:%.*]] = load i8, i8* [[TMP6]] | 
|  | ; X32-NEXT:    [[TMP9:%.*]] = load i8, i8* [[TMP7]] | 
|  | ; X32-NEXT:    [[TMP10:%.*]] = zext i8 [[TMP8]] to i32 | 
|  | ; X32-NEXT:    [[TMP11:%.*]] = zext i8 [[TMP9]] to i32 | 
|  | ; X32-NEXT:    [[TMP12:%.*]] = xor i32 [[TMP10]], [[TMP11]] | 
|  | ; X32-NEXT:    [[TMP13:%.*]] = or i32 [[TMP5]], [[TMP12]] | 
|  | ; X32-NEXT:    [[TMP14:%.*]] = icmp ne i32 [[TMP13]], 0 | 
|  | ; X32-NEXT:    [[TMP15:%.*]] = zext i1 [[TMP14]] to i32 | 
|  | ; X32-NEXT:    [[CMP:%.*]] = icmp eq i32 [[TMP15]], 0 | 
|  | ; X32-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X32-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | ; X64_1LD-LABEL: @cmp_eq5( | 
|  | ; X64_1LD-NEXT:    br label [[LOADBB:%.*]] | 
|  | ; X64_1LD:       res_block: | 
|  | ; X64_1LD-NEXT:    br label [[ENDBLOCK:%.*]] | 
|  | ; X64_1LD:       loadbb: | 
|  | ; X64_1LD-NEXT:    [[TMP1:%.*]] = bitcast i8* [[X:%.*]] to i32* | 
|  | ; X64_1LD-NEXT:    [[TMP2:%.*]] = bitcast i8* [[Y:%.*]] to i32* | 
|  | ; X64_1LD-NEXT:    [[TMP3:%.*]] = load i32, i32* [[TMP1]] | 
|  | ; X64_1LD-NEXT:    [[TMP4:%.*]] = load i32, i32* [[TMP2]] | 
|  | ; X64_1LD-NEXT:    [[TMP5:%.*]] = icmp ne i32 [[TMP3]], [[TMP4]] | 
|  | ; X64_1LD-NEXT:    br i1 [[TMP5]], label [[RES_BLOCK:%.*]], label [[LOADBB1:%.*]] | 
|  | ; X64_1LD:       loadbb1: | 
|  | ; X64_1LD-NEXT:    [[TMP6:%.*]] = getelementptr i8, i8* [[X]], i8 4 | 
|  | ; X64_1LD-NEXT:    [[TMP7:%.*]] = getelementptr i8, i8* [[Y]], i8 4 | 
|  | ; X64_1LD-NEXT:    [[TMP8:%.*]] = load i8, i8* [[TMP6]] | 
|  | ; X64_1LD-NEXT:    [[TMP9:%.*]] = load i8, i8* [[TMP7]] | 
|  | ; X64_1LD-NEXT:    [[TMP10:%.*]] = icmp ne i8 [[TMP8]], [[TMP9]] | 
|  | ; X64_1LD-NEXT:    br i1 [[TMP10]], label [[RES_BLOCK]], label [[ENDBLOCK]] | 
|  | ; X64_1LD:       endblock: | 
|  | ; X64_1LD-NEXT:    [[PHI_RES:%.*]] = phi i32 [ 0, [[LOADBB1]] ], [ 1, [[RES_BLOCK]] ] | 
|  | ; X64_1LD-NEXT:    [[CMP:%.*]] = icmp eq i32 [[PHI_RES]], 0 | 
|  | ; X64_1LD-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X64_1LD-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | ; X64_2LD-LABEL: @cmp_eq5( | 
|  | ; X64_2LD-NEXT:    [[TMP1:%.*]] = bitcast i8* [[X:%.*]] to i32* | 
|  | ; X64_2LD-NEXT:    [[TMP2:%.*]] = bitcast i8* [[Y:%.*]] to i32* | 
|  | ; X64_2LD-NEXT:    [[TMP3:%.*]] = load i32, i32* [[TMP1]] | 
|  | ; X64_2LD-NEXT:    [[TMP4:%.*]] = load i32, i32* [[TMP2]] | 
|  | ; X64_2LD-NEXT:    [[TMP5:%.*]] = xor i32 [[TMP3]], [[TMP4]] | 
|  | ; X64_2LD-NEXT:    [[TMP6:%.*]] = getelementptr i8, i8* [[X]], i8 4 | 
|  | ; X64_2LD-NEXT:    [[TMP7:%.*]] = getelementptr i8, i8* [[Y]], i8 4 | 
|  | ; X64_2LD-NEXT:    [[TMP8:%.*]] = load i8, i8* [[TMP6]] | 
|  | ; X64_2LD-NEXT:    [[TMP9:%.*]] = load i8, i8* [[TMP7]] | 
|  | ; X64_2LD-NEXT:    [[TMP10:%.*]] = zext i8 [[TMP8]] to i32 | 
|  | ; X64_2LD-NEXT:    [[TMP11:%.*]] = zext i8 [[TMP9]] to i32 | 
|  | ; X64_2LD-NEXT:    [[TMP12:%.*]] = xor i32 [[TMP10]], [[TMP11]] | 
|  | ; X64_2LD-NEXT:    [[TMP13:%.*]] = or i32 [[TMP5]], [[TMP12]] | 
|  | ; X64_2LD-NEXT:    [[TMP14:%.*]] = icmp ne i32 [[TMP13]], 0 | 
|  | ; X64_2LD-NEXT:    [[TMP15:%.*]] = zext i1 [[TMP14]] to i32 | 
|  | ; X64_2LD-NEXT:    [[CMP:%.*]] = icmp eq i32 [[TMP15]], 0 | 
|  | ; X64_2LD-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X64_2LD-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 5) | 
|  | %cmp = icmp eq i32 %call, 0 | 
|  | %conv = zext i1 %cmp to i32 | 
|  | ret i32 %conv | 
|  | } | 
|  |  | 
|  | define i32 @cmp_eq6(i8* nocapture readonly %x, i8* nocapture readonly %y)  { | 
|  | ; X32-LABEL: @cmp_eq6( | 
|  | ; X32-NEXT:    [[TMP1:%.*]] = bitcast i8* [[X:%.*]] to i32* | 
|  | ; X32-NEXT:    [[TMP2:%.*]] = bitcast i8* [[Y:%.*]] to i32* | 
|  | ; X32-NEXT:    [[TMP3:%.*]] = load i32, i32* [[TMP1]] | 
|  | ; X32-NEXT:    [[TMP4:%.*]] = load i32, i32* [[TMP2]] | 
|  | ; X32-NEXT:    [[TMP5:%.*]] = xor i32 [[TMP3]], [[TMP4]] | 
|  | ; X32-NEXT:    [[TMP6:%.*]] = getelementptr i8, i8* [[X]], i8 4 | 
|  | ; X32-NEXT:    [[TMP7:%.*]] = bitcast i8* [[TMP6]] to i16* | 
|  | ; X32-NEXT:    [[TMP8:%.*]] = getelementptr i8, i8* [[Y]], i8 4 | 
|  | ; X32-NEXT:    [[TMP9:%.*]] = bitcast i8* [[TMP8]] to i16* | 
|  | ; X32-NEXT:    [[TMP10:%.*]] = load i16, i16* [[TMP7]] | 
|  | ; X32-NEXT:    [[TMP11:%.*]] = load i16, i16* [[TMP9]] | 
|  | ; X32-NEXT:    [[TMP12:%.*]] = zext i16 [[TMP10]] to i32 | 
|  | ; X32-NEXT:    [[TMP13:%.*]] = zext i16 [[TMP11]] to i32 | 
|  | ; X32-NEXT:    [[TMP14:%.*]] = xor i32 [[TMP12]], [[TMP13]] | 
|  | ; X32-NEXT:    [[TMP15:%.*]] = or i32 [[TMP5]], [[TMP14]] | 
|  | ; X32-NEXT:    [[TMP16:%.*]] = icmp ne i32 [[TMP15]], 0 | 
|  | ; X32-NEXT:    [[TMP17:%.*]] = zext i1 [[TMP16]] to i32 | 
|  | ; X32-NEXT:    [[CMP:%.*]] = icmp eq i32 [[TMP17]], 0 | 
|  | ; X32-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X32-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | ; X64_1LD-LABEL: @cmp_eq6( | 
|  | ; X64_1LD-NEXT:    br label [[LOADBB:%.*]] | 
|  | ; X64_1LD:       res_block: | 
|  | ; X64_1LD-NEXT:    br label [[ENDBLOCK:%.*]] | 
|  | ; X64_1LD:       loadbb: | 
|  | ; X64_1LD-NEXT:    [[TMP1:%.*]] = bitcast i8* [[X:%.*]] to i32* | 
|  | ; X64_1LD-NEXT:    [[TMP2:%.*]] = bitcast i8* [[Y:%.*]] to i32* | 
|  | ; X64_1LD-NEXT:    [[TMP3:%.*]] = load i32, i32* [[TMP1]] | 
|  | ; X64_1LD-NEXT:    [[TMP4:%.*]] = load i32, i32* [[TMP2]] | 
|  | ; X64_1LD-NEXT:    [[TMP5:%.*]] = icmp ne i32 [[TMP3]], [[TMP4]] | 
|  | ; X64_1LD-NEXT:    br i1 [[TMP5]], label [[RES_BLOCK:%.*]], label [[LOADBB1:%.*]] | 
|  | ; X64_1LD:       loadbb1: | 
|  | ; X64_1LD-NEXT:    [[TMP6:%.*]] = getelementptr i8, i8* [[X]], i8 4 | 
|  | ; X64_1LD-NEXT:    [[TMP7:%.*]] = bitcast i8* [[TMP6]] to i16* | 
|  | ; X64_1LD-NEXT:    [[TMP8:%.*]] = getelementptr i8, i8* [[Y]], i8 4 | 
|  | ; X64_1LD-NEXT:    [[TMP9:%.*]] = bitcast i8* [[TMP8]] to i16* | 
|  | ; X64_1LD-NEXT:    [[TMP10:%.*]] = load i16, i16* [[TMP7]] | 
|  | ; X64_1LD-NEXT:    [[TMP11:%.*]] = load i16, i16* [[TMP9]] | 
|  | ; X64_1LD-NEXT:    [[TMP12:%.*]] = icmp ne i16 [[TMP10]], [[TMP11]] | 
|  | ; X64_1LD-NEXT:    br i1 [[TMP12]], label [[RES_BLOCK]], label [[ENDBLOCK]] | 
|  | ; X64_1LD:       endblock: | 
|  | ; X64_1LD-NEXT:    [[PHI_RES:%.*]] = phi i32 [ 0, [[LOADBB1]] ], [ 1, [[RES_BLOCK]] ] | 
|  | ; X64_1LD-NEXT:    [[CMP:%.*]] = icmp eq i32 [[PHI_RES]], 0 | 
|  | ; X64_1LD-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X64_1LD-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | ; X64_2LD-LABEL: @cmp_eq6( | 
|  | ; X64_2LD-NEXT:    [[TMP1:%.*]] = bitcast i8* [[X:%.*]] to i32* | 
|  | ; X64_2LD-NEXT:    [[TMP2:%.*]] = bitcast i8* [[Y:%.*]] to i32* | 
|  | ; X64_2LD-NEXT:    [[TMP3:%.*]] = load i32, i32* [[TMP1]] | 
|  | ; X64_2LD-NEXT:    [[TMP4:%.*]] = load i32, i32* [[TMP2]] | 
|  | ; X64_2LD-NEXT:    [[TMP5:%.*]] = xor i32 [[TMP3]], [[TMP4]] | 
|  | ; X64_2LD-NEXT:    [[TMP6:%.*]] = getelementptr i8, i8* [[X]], i8 4 | 
|  | ; X64_2LD-NEXT:    [[TMP7:%.*]] = bitcast i8* [[TMP6]] to i16* | 
|  | ; X64_2LD-NEXT:    [[TMP8:%.*]] = getelementptr i8, i8* [[Y]], i8 4 | 
|  | ; X64_2LD-NEXT:    [[TMP9:%.*]] = bitcast i8* [[TMP8]] to i16* | 
|  | ; X64_2LD-NEXT:    [[TMP10:%.*]] = load i16, i16* [[TMP7]] | 
|  | ; X64_2LD-NEXT:    [[TMP11:%.*]] = load i16, i16* [[TMP9]] | 
|  | ; X64_2LD-NEXT:    [[TMP12:%.*]] = zext i16 [[TMP10]] to i32 | 
|  | ; X64_2LD-NEXT:    [[TMP13:%.*]] = zext i16 [[TMP11]] to i32 | 
|  | ; X64_2LD-NEXT:    [[TMP14:%.*]] = xor i32 [[TMP12]], [[TMP13]] | 
|  | ; X64_2LD-NEXT:    [[TMP15:%.*]] = or i32 [[TMP5]], [[TMP14]] | 
|  | ; X64_2LD-NEXT:    [[TMP16:%.*]] = icmp ne i32 [[TMP15]], 0 | 
|  | ; X64_2LD-NEXT:    [[TMP17:%.*]] = zext i1 [[TMP16]] to i32 | 
|  | ; X64_2LD-NEXT:    [[CMP:%.*]] = icmp eq i32 [[TMP17]], 0 | 
|  | ; X64_2LD-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X64_2LD-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 6) | 
|  | %cmp = icmp eq i32 %call, 0 | 
|  | %conv = zext i1 %cmp to i32 | 
|  | ret i32 %conv | 
|  | } | 
|  |  | 
|  | define i32 @cmp_eq7(i8* nocapture readonly %x, i8* nocapture readonly %y)  { | 
|  | ; X32-LABEL: @cmp_eq7( | 
|  | ; X32-NEXT:    [[TMP1:%.*]] = bitcast i8* [[X:%.*]] to i32* | 
|  | ; X32-NEXT:    [[TMP2:%.*]] = bitcast i8* [[Y:%.*]] to i32* | 
|  | ; X32-NEXT:    [[TMP3:%.*]] = load i32, i32* [[TMP1]] | 
|  | ; X32-NEXT:    [[TMP4:%.*]] = load i32, i32* [[TMP2]] | 
|  | ; X32-NEXT:    [[TMP5:%.*]] = xor i32 [[TMP3]], [[TMP4]] | 
|  | ; X32-NEXT:    [[TMP6:%.*]] = getelementptr i8, i8* [[X]], i8 3 | 
|  | ; X32-NEXT:    [[TMP7:%.*]] = bitcast i8* [[TMP6]] to i32* | 
|  | ; X32-NEXT:    [[TMP8:%.*]] = getelementptr i8, i8* [[Y]], i8 3 | 
|  | ; X32-NEXT:    [[TMP9:%.*]] = bitcast i8* [[TMP8]] to i32* | 
|  | ; X32-NEXT:    [[TMP10:%.*]] = load i32, i32* [[TMP7]] | 
|  | ; X32-NEXT:    [[TMP11:%.*]] = load i32, i32* [[TMP9]] | 
|  | ; X32-NEXT:    [[TMP12:%.*]] = xor i32 [[TMP10]], [[TMP11]] | 
|  | ; X32-NEXT:    [[TMP13:%.*]] = or i32 [[TMP5]], [[TMP12]] | 
|  | ; X32-NEXT:    [[TMP14:%.*]] = icmp ne i32 [[TMP13]], 0 | 
|  | ; X32-NEXT:    [[TMP15:%.*]] = zext i1 [[TMP14]] to i32 | 
|  | ; X32-NEXT:    [[CMP:%.*]] = icmp eq i32 [[TMP15]], 0 | 
|  | ; X32-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X32-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | ; X64_1LD-LABEL: @cmp_eq7( | 
|  | ; X64_1LD-NEXT:    br label [[LOADBB:%.*]] | 
|  | ; X64_1LD:       res_block: | 
|  | ; X64_1LD-NEXT:    br label [[ENDBLOCK:%.*]] | 
|  | ; X64_1LD:       loadbb: | 
|  | ; X64_1LD-NEXT:    [[TMP1:%.*]] = bitcast i8* [[X:%.*]] to i32* | 
|  | ; X64_1LD-NEXT:    [[TMP2:%.*]] = bitcast i8* [[Y:%.*]] to i32* | 
|  | ; X64_1LD-NEXT:    [[TMP3:%.*]] = load i32, i32* [[TMP1]] | 
|  | ; X64_1LD-NEXT:    [[TMP4:%.*]] = load i32, i32* [[TMP2]] | 
|  | ; X64_1LD-NEXT:    [[TMP5:%.*]] = icmp ne i32 [[TMP3]], [[TMP4]] | 
|  | ; X64_1LD-NEXT:    br i1 [[TMP5]], label [[RES_BLOCK:%.*]], label [[LOADBB1:%.*]] | 
|  | ; X64_1LD:       loadbb1: | 
|  | ; X64_1LD-NEXT:    [[TMP6:%.*]] = getelementptr i8, i8* [[X]], i8 3 | 
|  | ; X64_1LD-NEXT:    [[TMP7:%.*]] = bitcast i8* [[TMP6]] to i32* | 
|  | ; X64_1LD-NEXT:    [[TMP8:%.*]] = getelementptr i8, i8* [[Y]], i8 3 | 
|  | ; X64_1LD-NEXT:    [[TMP9:%.*]] = bitcast i8* [[TMP8]] to i32* | 
|  | ; X64_1LD-NEXT:    [[TMP10:%.*]] = load i32, i32* [[TMP7]] | 
|  | ; X64_1LD-NEXT:    [[TMP11:%.*]] = load i32, i32* [[TMP9]] | 
|  | ; X64_1LD-NEXT:    [[TMP12:%.*]] = icmp ne i32 [[TMP10]], [[TMP11]] | 
|  | ; X64_1LD-NEXT:    br i1 [[TMP12]], label [[RES_BLOCK]], label [[ENDBLOCK]] | 
|  | ; X64_1LD:       endblock: | 
|  | ; X64_1LD-NEXT:    [[PHI_RES:%.*]] = phi i32 [ 0, [[LOADBB1]] ], [ 1, [[RES_BLOCK]] ] | 
|  | ; X64_1LD-NEXT:    [[CMP:%.*]] = icmp eq i32 [[PHI_RES]], 0 | 
|  | ; X64_1LD-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X64_1LD-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | ; X64_2LD-LABEL: @cmp_eq7( | 
|  | ; X64_2LD-NEXT:    [[TMP1:%.*]] = bitcast i8* [[X:%.*]] to i32* | 
|  | ; X64_2LD-NEXT:    [[TMP2:%.*]] = bitcast i8* [[Y:%.*]] to i32* | 
|  | ; X64_2LD-NEXT:    [[TMP3:%.*]] = load i32, i32* [[TMP1]] | 
|  | ; X64_2LD-NEXT:    [[TMP4:%.*]] = load i32, i32* [[TMP2]] | 
|  | ; X64_2LD-NEXT:    [[TMP5:%.*]] = xor i32 [[TMP3]], [[TMP4]] | 
|  | ; X64_2LD-NEXT:    [[TMP6:%.*]] = getelementptr i8, i8* [[X]], i8 3 | 
|  | ; X64_2LD-NEXT:    [[TMP7:%.*]] = bitcast i8* [[TMP6]] to i32* | 
|  | ; X64_2LD-NEXT:    [[TMP8:%.*]] = getelementptr i8, i8* [[Y]], i8 3 | 
|  | ; X64_2LD-NEXT:    [[TMP9:%.*]] = bitcast i8* [[TMP8]] to i32* | 
|  | ; X64_2LD-NEXT:    [[TMP10:%.*]] = load i32, i32* [[TMP7]] | 
|  | ; X64_2LD-NEXT:    [[TMP11:%.*]] = load i32, i32* [[TMP9]] | 
|  | ; X64_2LD-NEXT:    [[TMP12:%.*]] = xor i32 [[TMP10]], [[TMP11]] | 
|  | ; X64_2LD-NEXT:    [[TMP13:%.*]] = or i32 [[TMP5]], [[TMP12]] | 
|  | ; X64_2LD-NEXT:    [[TMP14:%.*]] = icmp ne i32 [[TMP13]], 0 | 
|  | ; X64_2LD-NEXT:    [[TMP15:%.*]] = zext i1 [[TMP14]] to i32 | 
|  | ; X64_2LD-NEXT:    [[CMP:%.*]] = icmp eq i32 [[TMP15]], 0 | 
|  | ; X64_2LD-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X64_2LD-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 7) | 
|  | %cmp = icmp eq i32 %call, 0 | 
|  | %conv = zext i1 %cmp to i32 | 
|  | ret i32 %conv | 
|  | } | 
|  |  | 
|  | define i32 @cmp_eq8(i8* nocapture readonly %x, i8* nocapture readonly %y)  { | 
|  | ; X32-LABEL: @cmp_eq8( | 
|  | ; X32-NEXT:    [[TMP1:%.*]] = bitcast i8* [[X:%.*]] to i32* | 
|  | ; X32-NEXT:    [[TMP2:%.*]] = bitcast i8* [[Y:%.*]] to i32* | 
|  | ; X32-NEXT:    [[TMP3:%.*]] = load i32, i32* [[TMP1]] | 
|  | ; X32-NEXT:    [[TMP4:%.*]] = load i32, i32* [[TMP2]] | 
|  | ; X32-NEXT:    [[TMP5:%.*]] = xor i32 [[TMP3]], [[TMP4]] | 
|  | ; X32-NEXT:    [[TMP6:%.*]] = getelementptr i8, i8* [[X]], i8 4 | 
|  | ; X32-NEXT:    [[TMP7:%.*]] = bitcast i8* [[TMP6]] to i32* | 
|  | ; X32-NEXT:    [[TMP8:%.*]] = getelementptr i8, i8* [[Y]], i8 4 | 
|  | ; X32-NEXT:    [[TMP9:%.*]] = bitcast i8* [[TMP8]] to i32* | 
|  | ; X32-NEXT:    [[TMP10:%.*]] = load i32, i32* [[TMP7]] | 
|  | ; X32-NEXT:    [[TMP11:%.*]] = load i32, i32* [[TMP9]] | 
|  | ; X32-NEXT:    [[TMP12:%.*]] = xor i32 [[TMP10]], [[TMP11]] | 
|  | ; X32-NEXT:    [[TMP13:%.*]] = or i32 [[TMP5]], [[TMP12]] | 
|  | ; X32-NEXT:    [[TMP14:%.*]] = icmp ne i32 [[TMP13]], 0 | 
|  | ; X32-NEXT:    [[TMP15:%.*]] = zext i1 [[TMP14]] to i32 | 
|  | ; X32-NEXT:    [[CMP:%.*]] = icmp eq i32 [[TMP15]], 0 | 
|  | ; X32-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X32-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | ; X64-LABEL: @cmp_eq8( | 
|  | ; X64-NEXT:    [[TMP1:%.*]] = bitcast i8* [[X:%.*]] to i64* | 
|  | ; X64-NEXT:    [[TMP2:%.*]] = bitcast i8* [[Y:%.*]] to i64* | 
|  | ; X64-NEXT:    [[TMP3:%.*]] = load i64, i64* [[TMP1]] | 
|  | ; X64-NEXT:    [[TMP4:%.*]] = load i64, i64* [[TMP2]] | 
|  | ; X64-NEXT:    [[TMP5:%.*]] = icmp ne i64 [[TMP3]], [[TMP4]] | 
|  | ; X64-NEXT:    [[TMP6:%.*]] = zext i1 [[TMP5]] to i32 | 
|  | ; X64-NEXT:    [[CMP:%.*]] = icmp eq i32 [[TMP6]], 0 | 
|  | ; X64-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X64-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 8) | 
|  | %cmp = icmp eq i32 %call, 0 | 
|  | %conv = zext i1 %cmp to i32 | 
|  | ret i32 %conv | 
|  | } | 
|  |  | 
|  | define i32 @cmp_eq9(i8* nocapture readonly %x, i8* nocapture readonly %y)  { | 
|  | ; X32-LABEL: @cmp_eq9( | 
|  | ; X32-NEXT:    [[CALL:%.*]] = tail call i32 @memcmp(i8* [[X:%.*]], i8* [[Y:%.*]], i64 9) | 
|  | ; X32-NEXT:    [[CMP:%.*]] = icmp eq i32 [[CALL]], 0 | 
|  | ; X32-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X32-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | ; X64_1LD-LABEL: @cmp_eq9( | 
|  | ; X64_1LD-NEXT:    br label [[LOADBB:%.*]] | 
|  | ; X64_1LD:       res_block: | 
|  | ; X64_1LD-NEXT:    br label [[ENDBLOCK:%.*]] | 
|  | ; X64_1LD:       loadbb: | 
|  | ; X64_1LD-NEXT:    [[TMP1:%.*]] = bitcast i8* [[X:%.*]] to i64* | 
|  | ; X64_1LD-NEXT:    [[TMP2:%.*]] = bitcast i8* [[Y:%.*]] to i64* | 
|  | ; X64_1LD-NEXT:    [[TMP3:%.*]] = load i64, i64* [[TMP1]] | 
|  | ; X64_1LD-NEXT:    [[TMP4:%.*]] = load i64, i64* [[TMP2]] | 
|  | ; X64_1LD-NEXT:    [[TMP5:%.*]] = icmp ne i64 [[TMP3]], [[TMP4]] | 
|  | ; X64_1LD-NEXT:    br i1 [[TMP5]], label [[RES_BLOCK:%.*]], label [[LOADBB1:%.*]] | 
|  | ; X64_1LD:       loadbb1: | 
|  | ; X64_1LD-NEXT:    [[TMP6:%.*]] = getelementptr i8, i8* [[X]], i8 8 | 
|  | ; X64_1LD-NEXT:    [[TMP7:%.*]] = getelementptr i8, i8* [[Y]], i8 8 | 
|  | ; X64_1LD-NEXT:    [[TMP8:%.*]] = load i8, i8* [[TMP6]] | 
|  | ; X64_1LD-NEXT:    [[TMP9:%.*]] = load i8, i8* [[TMP7]] | 
|  | ; X64_1LD-NEXT:    [[TMP10:%.*]] = icmp ne i8 [[TMP8]], [[TMP9]] | 
|  | ; X64_1LD-NEXT:    br i1 [[TMP10]], label [[RES_BLOCK]], label [[ENDBLOCK]] | 
|  | ; X64_1LD:       endblock: | 
|  | ; X64_1LD-NEXT:    [[PHI_RES:%.*]] = phi i32 [ 0, [[LOADBB1]] ], [ 1, [[RES_BLOCK]] ] | 
|  | ; X64_1LD-NEXT:    [[CMP:%.*]] = icmp eq i32 [[PHI_RES]], 0 | 
|  | ; X64_1LD-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X64_1LD-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | ; X64_2LD-LABEL: @cmp_eq9( | 
|  | ; X64_2LD-NEXT:    [[TMP1:%.*]] = bitcast i8* [[X:%.*]] to i64* | 
|  | ; X64_2LD-NEXT:    [[TMP2:%.*]] = bitcast i8* [[Y:%.*]] to i64* | 
|  | ; X64_2LD-NEXT:    [[TMP3:%.*]] = load i64, i64* [[TMP1]] | 
|  | ; X64_2LD-NEXT:    [[TMP4:%.*]] = load i64, i64* [[TMP2]] | 
|  | ; X64_2LD-NEXT:    [[TMP5:%.*]] = xor i64 [[TMP3]], [[TMP4]] | 
|  | ; X64_2LD-NEXT:    [[TMP6:%.*]] = getelementptr i8, i8* [[X]], i8 8 | 
|  | ; X64_2LD-NEXT:    [[TMP7:%.*]] = getelementptr i8, i8* [[Y]], i8 8 | 
|  | ; X64_2LD-NEXT:    [[TMP8:%.*]] = load i8, i8* [[TMP6]] | 
|  | ; X64_2LD-NEXT:    [[TMP9:%.*]] = load i8, i8* [[TMP7]] | 
|  | ; X64_2LD-NEXT:    [[TMP10:%.*]] = zext i8 [[TMP8]] to i64 | 
|  | ; X64_2LD-NEXT:    [[TMP11:%.*]] = zext i8 [[TMP9]] to i64 | 
|  | ; X64_2LD-NEXT:    [[TMP12:%.*]] = xor i64 [[TMP10]], [[TMP11]] | 
|  | ; X64_2LD-NEXT:    [[TMP13:%.*]] = or i64 [[TMP5]], [[TMP12]] | 
|  | ; X64_2LD-NEXT:    [[TMP14:%.*]] = icmp ne i64 [[TMP13]], 0 | 
|  | ; X64_2LD-NEXT:    [[TMP15:%.*]] = zext i1 [[TMP14]] to i32 | 
|  | ; X64_2LD-NEXT:    [[CMP:%.*]] = icmp eq i32 [[TMP15]], 0 | 
|  | ; X64_2LD-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X64_2LD-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 9) | 
|  | %cmp = icmp eq i32 %call, 0 | 
|  | %conv = zext i1 %cmp to i32 | 
|  | ret i32 %conv | 
|  | } | 
|  |  | 
|  | define i32 @cmp_eq10(i8* nocapture readonly %x, i8* nocapture readonly %y)  { | 
|  | ; X32-LABEL: @cmp_eq10( | 
|  | ; X32-NEXT:    [[CALL:%.*]] = tail call i32 @memcmp(i8* [[X:%.*]], i8* [[Y:%.*]], i64 10) | 
|  | ; X32-NEXT:    [[CMP:%.*]] = icmp eq i32 [[CALL]], 0 | 
|  | ; X32-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X32-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | ; X64_1LD-LABEL: @cmp_eq10( | 
|  | ; X64_1LD-NEXT:    br label [[LOADBB:%.*]] | 
|  | ; X64_1LD:       res_block: | 
|  | ; X64_1LD-NEXT:    br label [[ENDBLOCK:%.*]] | 
|  | ; X64_1LD:       loadbb: | 
|  | ; X64_1LD-NEXT:    [[TMP1:%.*]] = bitcast i8* [[X:%.*]] to i64* | 
|  | ; X64_1LD-NEXT:    [[TMP2:%.*]] = bitcast i8* [[Y:%.*]] to i64* | 
|  | ; X64_1LD-NEXT:    [[TMP3:%.*]] = load i64, i64* [[TMP1]] | 
|  | ; X64_1LD-NEXT:    [[TMP4:%.*]] = load i64, i64* [[TMP2]] | 
|  | ; X64_1LD-NEXT:    [[TMP5:%.*]] = icmp ne i64 [[TMP3]], [[TMP4]] | 
|  | ; X64_1LD-NEXT:    br i1 [[TMP5]], label [[RES_BLOCK:%.*]], label [[LOADBB1:%.*]] | 
|  | ; X64_1LD:       loadbb1: | 
|  | ; X64_1LD-NEXT:    [[TMP6:%.*]] = getelementptr i8, i8* [[X]], i8 8 | 
|  | ; X64_1LD-NEXT:    [[TMP7:%.*]] = bitcast i8* [[TMP6]] to i16* | 
|  | ; X64_1LD-NEXT:    [[TMP8:%.*]] = getelementptr i8, i8* [[Y]], i8 8 | 
|  | ; X64_1LD-NEXT:    [[TMP9:%.*]] = bitcast i8* [[TMP8]] to i16* | 
|  | ; X64_1LD-NEXT:    [[TMP10:%.*]] = load i16, i16* [[TMP7]] | 
|  | ; X64_1LD-NEXT:    [[TMP11:%.*]] = load i16, i16* [[TMP9]] | 
|  | ; X64_1LD-NEXT:    [[TMP12:%.*]] = icmp ne i16 [[TMP10]], [[TMP11]] | 
|  | ; X64_1LD-NEXT:    br i1 [[TMP12]], label [[RES_BLOCK]], label [[ENDBLOCK]] | 
|  | ; X64_1LD:       endblock: | 
|  | ; X64_1LD-NEXT:    [[PHI_RES:%.*]] = phi i32 [ 0, [[LOADBB1]] ], [ 1, [[RES_BLOCK]] ] | 
|  | ; X64_1LD-NEXT:    [[CMP:%.*]] = icmp eq i32 [[PHI_RES]], 0 | 
|  | ; X64_1LD-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X64_1LD-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | ; X64_2LD-LABEL: @cmp_eq10( | 
|  | ; X64_2LD-NEXT:    [[TMP1:%.*]] = bitcast i8* [[X:%.*]] to i64* | 
|  | ; X64_2LD-NEXT:    [[TMP2:%.*]] = bitcast i8* [[Y:%.*]] to i64* | 
|  | ; X64_2LD-NEXT:    [[TMP3:%.*]] = load i64, i64* [[TMP1]] | 
|  | ; X64_2LD-NEXT:    [[TMP4:%.*]] = load i64, i64* [[TMP2]] | 
|  | ; X64_2LD-NEXT:    [[TMP5:%.*]] = xor i64 [[TMP3]], [[TMP4]] | 
|  | ; X64_2LD-NEXT:    [[TMP6:%.*]] = getelementptr i8, i8* [[X]], i8 8 | 
|  | ; X64_2LD-NEXT:    [[TMP7:%.*]] = bitcast i8* [[TMP6]] to i16* | 
|  | ; X64_2LD-NEXT:    [[TMP8:%.*]] = getelementptr i8, i8* [[Y]], i8 8 | 
|  | ; X64_2LD-NEXT:    [[TMP9:%.*]] = bitcast i8* [[TMP8]] to i16* | 
|  | ; X64_2LD-NEXT:    [[TMP10:%.*]] = load i16, i16* [[TMP7]] | 
|  | ; X64_2LD-NEXT:    [[TMP11:%.*]] = load i16, i16* [[TMP9]] | 
|  | ; X64_2LD-NEXT:    [[TMP12:%.*]] = zext i16 [[TMP10]] to i64 | 
|  | ; X64_2LD-NEXT:    [[TMP13:%.*]] = zext i16 [[TMP11]] to i64 | 
|  | ; X64_2LD-NEXT:    [[TMP14:%.*]] = xor i64 [[TMP12]], [[TMP13]] | 
|  | ; X64_2LD-NEXT:    [[TMP15:%.*]] = or i64 [[TMP5]], [[TMP14]] | 
|  | ; X64_2LD-NEXT:    [[TMP16:%.*]] = icmp ne i64 [[TMP15]], 0 | 
|  | ; X64_2LD-NEXT:    [[TMP17:%.*]] = zext i1 [[TMP16]] to i32 | 
|  | ; X64_2LD-NEXT:    [[CMP:%.*]] = icmp eq i32 [[TMP17]], 0 | 
|  | ; X64_2LD-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X64_2LD-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 10) | 
|  | %cmp = icmp eq i32 %call, 0 | 
|  | %conv = zext i1 %cmp to i32 | 
|  | ret i32 %conv | 
|  | } | 
|  |  | 
|  | define i32 @cmp_eq11(i8* nocapture readonly %x, i8* nocapture readonly %y)  { | 
|  | ; X32-LABEL: @cmp_eq11( | 
|  | ; X32-NEXT:    [[CALL:%.*]] = tail call i32 @memcmp(i8* [[X:%.*]], i8* [[Y:%.*]], i64 11) | 
|  | ; X32-NEXT:    [[CMP:%.*]] = icmp eq i32 [[CALL]], 0 | 
|  | ; X32-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X32-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | ; X64_1LD-LABEL: @cmp_eq11( | 
|  | ; X64_1LD-NEXT:    br label [[LOADBB:%.*]] | 
|  | ; X64_1LD:       res_block: | 
|  | ; X64_1LD-NEXT:    br label [[ENDBLOCK:%.*]] | 
|  | ; X64_1LD:       loadbb: | 
|  | ; X64_1LD-NEXT:    [[TMP1:%.*]] = bitcast i8* [[X:%.*]] to i64* | 
|  | ; X64_1LD-NEXT:    [[TMP2:%.*]] = bitcast i8* [[Y:%.*]] to i64* | 
|  | ; X64_1LD-NEXT:    [[TMP3:%.*]] = load i64, i64* [[TMP1]] | 
|  | ; X64_1LD-NEXT:    [[TMP4:%.*]] = load i64, i64* [[TMP2]] | 
|  | ; X64_1LD-NEXT:    [[TMP5:%.*]] = icmp ne i64 [[TMP3]], [[TMP4]] | 
|  | ; X64_1LD-NEXT:    br i1 [[TMP5]], label [[RES_BLOCK:%.*]], label [[LOADBB1:%.*]] | 
|  | ; X64_1LD:       loadbb1: | 
|  | ; X64_1LD-NEXT:    [[TMP6:%.*]] = getelementptr i8, i8* [[X]], i8 3 | 
|  | ; X64_1LD-NEXT:    [[TMP7:%.*]] = bitcast i8* [[TMP6]] to i64* | 
|  | ; X64_1LD-NEXT:    [[TMP8:%.*]] = getelementptr i8, i8* [[Y]], i8 3 | 
|  | ; X64_1LD-NEXT:    [[TMP9:%.*]] = bitcast i8* [[TMP8]] to i64* | 
|  | ; X64_1LD-NEXT:    [[TMP10:%.*]] = load i64, i64* [[TMP7]] | 
|  | ; X64_1LD-NEXT:    [[TMP11:%.*]] = load i64, i64* [[TMP9]] | 
|  | ; X64_1LD-NEXT:    [[TMP12:%.*]] = icmp ne i64 [[TMP10]], [[TMP11]] | 
|  | ; X64_1LD-NEXT:    br i1 [[TMP12]], label [[RES_BLOCK]], label [[ENDBLOCK]] | 
|  | ; X64_1LD:       endblock: | 
|  | ; X64_1LD-NEXT:    [[PHI_RES:%.*]] = phi i32 [ 0, [[LOADBB1]] ], [ 1, [[RES_BLOCK]] ] | 
|  | ; X64_1LD-NEXT:    [[CMP:%.*]] = icmp eq i32 [[PHI_RES]], 0 | 
|  | ; X64_1LD-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X64_1LD-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | ; X64_2LD-LABEL: @cmp_eq11( | 
|  | ; X64_2LD-NEXT:    [[TMP1:%.*]] = bitcast i8* [[X:%.*]] to i64* | 
|  | ; X64_2LD-NEXT:    [[TMP2:%.*]] = bitcast i8* [[Y:%.*]] to i64* | 
|  | ; X64_2LD-NEXT:    [[TMP3:%.*]] = load i64, i64* [[TMP1]] | 
|  | ; X64_2LD-NEXT:    [[TMP4:%.*]] = load i64, i64* [[TMP2]] | 
|  | ; X64_2LD-NEXT:    [[TMP5:%.*]] = xor i64 [[TMP3]], [[TMP4]] | 
|  | ; X64_2LD-NEXT:    [[TMP6:%.*]] = getelementptr i8, i8* [[X]], i8 3 | 
|  | ; X64_2LD-NEXT:    [[TMP7:%.*]] = bitcast i8* [[TMP6]] to i64* | 
|  | ; X64_2LD-NEXT:    [[TMP8:%.*]] = getelementptr i8, i8* [[Y]], i8 3 | 
|  | ; X64_2LD-NEXT:    [[TMP9:%.*]] = bitcast i8* [[TMP8]] to i64* | 
|  | ; X64_2LD-NEXT:    [[TMP10:%.*]] = load i64, i64* [[TMP7]] | 
|  | ; X64_2LD-NEXT:    [[TMP11:%.*]] = load i64, i64* [[TMP9]] | 
|  | ; X64_2LD-NEXT:    [[TMP12:%.*]] = xor i64 [[TMP10]], [[TMP11]] | 
|  | ; X64_2LD-NEXT:    [[TMP13:%.*]] = or i64 [[TMP5]], [[TMP12]] | 
|  | ; X64_2LD-NEXT:    [[TMP14:%.*]] = icmp ne i64 [[TMP13]], 0 | 
|  | ; X64_2LD-NEXT:    [[TMP15:%.*]] = zext i1 [[TMP14]] to i32 | 
|  | ; X64_2LD-NEXT:    [[CMP:%.*]] = icmp eq i32 [[TMP15]], 0 | 
|  | ; X64_2LD-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X64_2LD-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 11) | 
|  | %cmp = icmp eq i32 %call, 0 | 
|  | %conv = zext i1 %cmp to i32 | 
|  | ret i32 %conv | 
|  | } | 
|  |  | 
|  | define i32 @cmp_eq12(i8* nocapture readonly %x, i8* nocapture readonly %y)  { | 
|  | ; X32-LABEL: @cmp_eq12( | 
|  | ; X32-NEXT:    [[CALL:%.*]] = tail call i32 @memcmp(i8* [[X:%.*]], i8* [[Y:%.*]], i64 12) | 
|  | ; X32-NEXT:    [[CMP:%.*]] = icmp eq i32 [[CALL]], 0 | 
|  | ; X32-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X32-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | ; X64_1LD-LABEL: @cmp_eq12( | 
|  | ; X64_1LD-NEXT:    br label [[LOADBB:%.*]] | 
|  | ; X64_1LD:       res_block: | 
|  | ; X64_1LD-NEXT:    br label [[ENDBLOCK:%.*]] | 
|  | ; X64_1LD:       loadbb: | 
|  | ; X64_1LD-NEXT:    [[TMP1:%.*]] = bitcast i8* [[X:%.*]] to i64* | 
|  | ; X64_1LD-NEXT:    [[TMP2:%.*]] = bitcast i8* [[Y:%.*]] to i64* | 
|  | ; X64_1LD-NEXT:    [[TMP3:%.*]] = load i64, i64* [[TMP1]] | 
|  | ; X64_1LD-NEXT:    [[TMP4:%.*]] = load i64, i64* [[TMP2]] | 
|  | ; X64_1LD-NEXT:    [[TMP5:%.*]] = icmp ne i64 [[TMP3]], [[TMP4]] | 
|  | ; X64_1LD-NEXT:    br i1 [[TMP5]], label [[RES_BLOCK:%.*]], label [[LOADBB1:%.*]] | 
|  | ; X64_1LD:       loadbb1: | 
|  | ; X64_1LD-NEXT:    [[TMP6:%.*]] = getelementptr i8, i8* [[X]], i8 8 | 
|  | ; X64_1LD-NEXT:    [[TMP7:%.*]] = bitcast i8* [[TMP6]] to i32* | 
|  | ; X64_1LD-NEXT:    [[TMP8:%.*]] = getelementptr i8, i8* [[Y]], i8 8 | 
|  | ; X64_1LD-NEXT:    [[TMP9:%.*]] = bitcast i8* [[TMP8]] to i32* | 
|  | ; X64_1LD-NEXT:    [[TMP10:%.*]] = load i32, i32* [[TMP7]] | 
|  | ; X64_1LD-NEXT:    [[TMP11:%.*]] = load i32, i32* [[TMP9]] | 
|  | ; X64_1LD-NEXT:    [[TMP12:%.*]] = icmp ne i32 [[TMP10]], [[TMP11]] | 
|  | ; X64_1LD-NEXT:    br i1 [[TMP12]], label [[RES_BLOCK]], label [[ENDBLOCK]] | 
|  | ; X64_1LD:       endblock: | 
|  | ; X64_1LD-NEXT:    [[PHI_RES:%.*]] = phi i32 [ 0, [[LOADBB1]] ], [ 1, [[RES_BLOCK]] ] | 
|  | ; X64_1LD-NEXT:    [[CMP:%.*]] = icmp eq i32 [[PHI_RES]], 0 | 
|  | ; X64_1LD-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X64_1LD-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | ; X64_2LD-LABEL: @cmp_eq12( | 
|  | ; X64_2LD-NEXT:    [[TMP1:%.*]] = bitcast i8* [[X:%.*]] to i64* | 
|  | ; X64_2LD-NEXT:    [[TMP2:%.*]] = bitcast i8* [[Y:%.*]] to i64* | 
|  | ; X64_2LD-NEXT:    [[TMP3:%.*]] = load i64, i64* [[TMP1]] | 
|  | ; X64_2LD-NEXT:    [[TMP4:%.*]] = load i64, i64* [[TMP2]] | 
|  | ; X64_2LD-NEXT:    [[TMP5:%.*]] = xor i64 [[TMP3]], [[TMP4]] | 
|  | ; X64_2LD-NEXT:    [[TMP6:%.*]] = getelementptr i8, i8* [[X]], i8 8 | 
|  | ; X64_2LD-NEXT:    [[TMP7:%.*]] = bitcast i8* [[TMP6]] to i32* | 
|  | ; X64_2LD-NEXT:    [[TMP8:%.*]] = getelementptr i8, i8* [[Y]], i8 8 | 
|  | ; X64_2LD-NEXT:    [[TMP9:%.*]] = bitcast i8* [[TMP8]] to i32* | 
|  | ; X64_2LD-NEXT:    [[TMP10:%.*]] = load i32, i32* [[TMP7]] | 
|  | ; X64_2LD-NEXT:    [[TMP11:%.*]] = load i32, i32* [[TMP9]] | 
|  | ; X64_2LD-NEXT:    [[TMP12:%.*]] = zext i32 [[TMP10]] to i64 | 
|  | ; X64_2LD-NEXT:    [[TMP13:%.*]] = zext i32 [[TMP11]] to i64 | 
|  | ; X64_2LD-NEXT:    [[TMP14:%.*]] = xor i64 [[TMP12]], [[TMP13]] | 
|  | ; X64_2LD-NEXT:    [[TMP15:%.*]] = or i64 [[TMP5]], [[TMP14]] | 
|  | ; X64_2LD-NEXT:    [[TMP16:%.*]] = icmp ne i64 [[TMP15]], 0 | 
|  | ; X64_2LD-NEXT:    [[TMP17:%.*]] = zext i1 [[TMP16]] to i32 | 
|  | ; X64_2LD-NEXT:    [[CMP:%.*]] = icmp eq i32 [[TMP17]], 0 | 
|  | ; X64_2LD-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X64_2LD-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 12) | 
|  | %cmp = icmp eq i32 %call, 0 | 
|  | %conv = zext i1 %cmp to i32 | 
|  | ret i32 %conv | 
|  | } | 
|  |  | 
|  | define i32 @cmp_eq13(i8* nocapture readonly %x, i8* nocapture readonly %y)  { | 
|  | ; X32-LABEL: @cmp_eq13( | 
|  | ; X32-NEXT:    [[CALL:%.*]] = tail call i32 @memcmp(i8* [[X:%.*]], i8* [[Y:%.*]], i64 13) | 
|  | ; X32-NEXT:    [[CMP:%.*]] = icmp eq i32 [[CALL]], 0 | 
|  | ; X32-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X32-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | ; X64_1LD-LABEL: @cmp_eq13( | 
|  | ; X64_1LD-NEXT:    br label [[LOADBB:%.*]] | 
|  | ; X64_1LD:       res_block: | 
|  | ; X64_1LD-NEXT:    br label [[ENDBLOCK:%.*]] | 
|  | ; X64_1LD:       loadbb: | 
|  | ; X64_1LD-NEXT:    [[TMP1:%.*]] = bitcast i8* [[X:%.*]] to i64* | 
|  | ; X64_1LD-NEXT:    [[TMP2:%.*]] = bitcast i8* [[Y:%.*]] to i64* | 
|  | ; X64_1LD-NEXT:    [[TMP3:%.*]] = load i64, i64* [[TMP1]] | 
|  | ; X64_1LD-NEXT:    [[TMP4:%.*]] = load i64, i64* [[TMP2]] | 
|  | ; X64_1LD-NEXT:    [[TMP5:%.*]] = icmp ne i64 [[TMP3]], [[TMP4]] | 
|  | ; X64_1LD-NEXT:    br i1 [[TMP5]], label [[RES_BLOCK:%.*]], label [[LOADBB1:%.*]] | 
|  | ; X64_1LD:       loadbb1: | 
|  | ; X64_1LD-NEXT:    [[TMP6:%.*]] = getelementptr i8, i8* [[X]], i8 5 | 
|  | ; X64_1LD-NEXT:    [[TMP7:%.*]] = bitcast i8* [[TMP6]] to i64* | 
|  | ; X64_1LD-NEXT:    [[TMP8:%.*]] = getelementptr i8, i8* [[Y]], i8 5 | 
|  | ; X64_1LD-NEXT:    [[TMP9:%.*]] = bitcast i8* [[TMP8]] to i64* | 
|  | ; X64_1LD-NEXT:    [[TMP10:%.*]] = load i64, i64* [[TMP7]] | 
|  | ; X64_1LD-NEXT:    [[TMP11:%.*]] = load i64, i64* [[TMP9]] | 
|  | ; X64_1LD-NEXT:    [[TMP12:%.*]] = icmp ne i64 [[TMP10]], [[TMP11]] | 
|  | ; X64_1LD-NEXT:    br i1 [[TMP12]], label [[RES_BLOCK]], label [[ENDBLOCK]] | 
|  | ; X64_1LD:       endblock: | 
|  | ; X64_1LD-NEXT:    [[PHI_RES:%.*]] = phi i32 [ 0, [[LOADBB1]] ], [ 1, [[RES_BLOCK]] ] | 
|  | ; X64_1LD-NEXT:    [[CMP:%.*]] = icmp eq i32 [[PHI_RES]], 0 | 
|  | ; X64_1LD-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X64_1LD-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | ; X64_2LD-LABEL: @cmp_eq13( | 
|  | ; X64_2LD-NEXT:    [[TMP1:%.*]] = bitcast i8* [[X:%.*]] to i64* | 
|  | ; X64_2LD-NEXT:    [[TMP2:%.*]] = bitcast i8* [[Y:%.*]] to i64* | 
|  | ; X64_2LD-NEXT:    [[TMP3:%.*]] = load i64, i64* [[TMP1]] | 
|  | ; X64_2LD-NEXT:    [[TMP4:%.*]] = load i64, i64* [[TMP2]] | 
|  | ; X64_2LD-NEXT:    [[TMP5:%.*]] = xor i64 [[TMP3]], [[TMP4]] | 
|  | ; X64_2LD-NEXT:    [[TMP6:%.*]] = getelementptr i8, i8* [[X]], i8 5 | 
|  | ; X64_2LD-NEXT:    [[TMP7:%.*]] = bitcast i8* [[TMP6]] to i64* | 
|  | ; X64_2LD-NEXT:    [[TMP8:%.*]] = getelementptr i8, i8* [[Y]], i8 5 | 
|  | ; X64_2LD-NEXT:    [[TMP9:%.*]] = bitcast i8* [[TMP8]] to i64* | 
|  | ; X64_2LD-NEXT:    [[TMP10:%.*]] = load i64, i64* [[TMP7]] | 
|  | ; X64_2LD-NEXT:    [[TMP11:%.*]] = load i64, i64* [[TMP9]] | 
|  | ; X64_2LD-NEXT:    [[TMP12:%.*]] = xor i64 [[TMP10]], [[TMP11]] | 
|  | ; X64_2LD-NEXT:    [[TMP13:%.*]] = or i64 [[TMP5]], [[TMP12]] | 
|  | ; X64_2LD-NEXT:    [[TMP14:%.*]] = icmp ne i64 [[TMP13]], 0 | 
|  | ; X64_2LD-NEXT:    [[TMP15:%.*]] = zext i1 [[TMP14]] to i32 | 
|  | ; X64_2LD-NEXT:    [[CMP:%.*]] = icmp eq i32 [[TMP15]], 0 | 
|  | ; X64_2LD-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X64_2LD-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 13) | 
|  | %cmp = icmp eq i32 %call, 0 | 
|  | %conv = zext i1 %cmp to i32 | 
|  | ret i32 %conv | 
|  | } | 
|  |  | 
|  | define i32 @cmp_eq14(i8* nocapture readonly %x, i8* nocapture readonly %y)  { | 
|  | ; X32-LABEL: @cmp_eq14( | 
|  | ; X32-NEXT:    [[CALL:%.*]] = tail call i32 @memcmp(i8* [[X:%.*]], i8* [[Y:%.*]], i64 14) | 
|  | ; X32-NEXT:    [[CMP:%.*]] = icmp eq i32 [[CALL]], 0 | 
|  | ; X32-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X32-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | ; X64_1LD-LABEL: @cmp_eq14( | 
|  | ; X64_1LD-NEXT:    br label [[LOADBB:%.*]] | 
|  | ; X64_1LD:       res_block: | 
|  | ; X64_1LD-NEXT:    br label [[ENDBLOCK:%.*]] | 
|  | ; X64_1LD:       loadbb: | 
|  | ; X64_1LD-NEXT:    [[TMP1:%.*]] = bitcast i8* [[X:%.*]] to i64* | 
|  | ; X64_1LD-NEXT:    [[TMP2:%.*]] = bitcast i8* [[Y:%.*]] to i64* | 
|  | ; X64_1LD-NEXT:    [[TMP3:%.*]] = load i64, i64* [[TMP1]] | 
|  | ; X64_1LD-NEXT:    [[TMP4:%.*]] = load i64, i64* [[TMP2]] | 
|  | ; X64_1LD-NEXT:    [[TMP5:%.*]] = icmp ne i64 [[TMP3]], [[TMP4]] | 
|  | ; X64_1LD-NEXT:    br i1 [[TMP5]], label [[RES_BLOCK:%.*]], label [[LOADBB1:%.*]] | 
|  | ; X64_1LD:       loadbb1: | 
|  | ; X64_1LD-NEXT:    [[TMP6:%.*]] = getelementptr i8, i8* [[X]], i8 6 | 
|  | ; X64_1LD-NEXT:    [[TMP7:%.*]] = bitcast i8* [[TMP6]] to i64* | 
|  | ; X64_1LD-NEXT:    [[TMP8:%.*]] = getelementptr i8, i8* [[Y]], i8 6 | 
|  | ; X64_1LD-NEXT:    [[TMP9:%.*]] = bitcast i8* [[TMP8]] to i64* | 
|  | ; X64_1LD-NEXT:    [[TMP10:%.*]] = load i64, i64* [[TMP7]] | 
|  | ; X64_1LD-NEXT:    [[TMP11:%.*]] = load i64, i64* [[TMP9]] | 
|  | ; X64_1LD-NEXT:    [[TMP12:%.*]] = icmp ne i64 [[TMP10]], [[TMP11]] | 
|  | ; X64_1LD-NEXT:    br i1 [[TMP12]], label [[RES_BLOCK]], label [[ENDBLOCK]] | 
|  | ; X64_1LD:       endblock: | 
|  | ; X64_1LD-NEXT:    [[PHI_RES:%.*]] = phi i32 [ 0, [[LOADBB1]] ], [ 1, [[RES_BLOCK]] ] | 
|  | ; X64_1LD-NEXT:    [[CMP:%.*]] = icmp eq i32 [[PHI_RES]], 0 | 
|  | ; X64_1LD-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X64_1LD-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | ; X64_2LD-LABEL: @cmp_eq14( | 
|  | ; X64_2LD-NEXT:    [[TMP1:%.*]] = bitcast i8* [[X:%.*]] to i64* | 
|  | ; X64_2LD-NEXT:    [[TMP2:%.*]] = bitcast i8* [[Y:%.*]] to i64* | 
|  | ; X64_2LD-NEXT:    [[TMP3:%.*]] = load i64, i64* [[TMP1]] | 
|  | ; X64_2LD-NEXT:    [[TMP4:%.*]] = load i64, i64* [[TMP2]] | 
|  | ; X64_2LD-NEXT:    [[TMP5:%.*]] = xor i64 [[TMP3]], [[TMP4]] | 
|  | ; X64_2LD-NEXT:    [[TMP6:%.*]] = getelementptr i8, i8* [[X]], i8 6 | 
|  | ; X64_2LD-NEXT:    [[TMP7:%.*]] = bitcast i8* [[TMP6]] to i64* | 
|  | ; X64_2LD-NEXT:    [[TMP8:%.*]] = getelementptr i8, i8* [[Y]], i8 6 | 
|  | ; X64_2LD-NEXT:    [[TMP9:%.*]] = bitcast i8* [[TMP8]] to i64* | 
|  | ; X64_2LD-NEXT:    [[TMP10:%.*]] = load i64, i64* [[TMP7]] | 
|  | ; X64_2LD-NEXT:    [[TMP11:%.*]] = load i64, i64* [[TMP9]] | 
|  | ; X64_2LD-NEXT:    [[TMP12:%.*]] = xor i64 [[TMP10]], [[TMP11]] | 
|  | ; X64_2LD-NEXT:    [[TMP13:%.*]] = or i64 [[TMP5]], [[TMP12]] | 
|  | ; X64_2LD-NEXT:    [[TMP14:%.*]] = icmp ne i64 [[TMP13]], 0 | 
|  | ; X64_2LD-NEXT:    [[TMP15:%.*]] = zext i1 [[TMP14]] to i32 | 
|  | ; X64_2LD-NEXT:    [[CMP:%.*]] = icmp eq i32 [[TMP15]], 0 | 
|  | ; X64_2LD-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X64_2LD-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 14) | 
|  | %cmp = icmp eq i32 %call, 0 | 
|  | %conv = zext i1 %cmp to i32 | 
|  | ret i32 %conv | 
|  | } | 
|  |  | 
|  | define i32 @cmp_eq15(i8* nocapture readonly %x, i8* nocapture readonly %y)  { | 
|  | ; X32-LABEL: @cmp_eq15( | 
|  | ; X32-NEXT:    [[CALL:%.*]] = tail call i32 @memcmp(i8* [[X:%.*]], i8* [[Y:%.*]], i64 15) | 
|  | ; X32-NEXT:    [[CMP:%.*]] = icmp eq i32 [[CALL]], 0 | 
|  | ; X32-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X32-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | ; X64_1LD-LABEL: @cmp_eq15( | 
|  | ; X64_1LD-NEXT:    br label [[LOADBB:%.*]] | 
|  | ; X64_1LD:       res_block: | 
|  | ; X64_1LD-NEXT:    br label [[ENDBLOCK:%.*]] | 
|  | ; X64_1LD:       loadbb: | 
|  | ; X64_1LD-NEXT:    [[TMP1:%.*]] = bitcast i8* [[X:%.*]] to i64* | 
|  | ; X64_1LD-NEXT:    [[TMP2:%.*]] = bitcast i8* [[Y:%.*]] to i64* | 
|  | ; X64_1LD-NEXT:    [[TMP3:%.*]] = load i64, i64* [[TMP1]] | 
|  | ; X64_1LD-NEXT:    [[TMP4:%.*]] = load i64, i64* [[TMP2]] | 
|  | ; X64_1LD-NEXT:    [[TMP5:%.*]] = icmp ne i64 [[TMP3]], [[TMP4]] | 
|  | ; X64_1LD-NEXT:    br i1 [[TMP5]], label [[RES_BLOCK:%.*]], label [[LOADBB1:%.*]] | 
|  | ; X64_1LD:       loadbb1: | 
|  | ; X64_1LD-NEXT:    [[TMP6:%.*]] = getelementptr i8, i8* [[X]], i8 7 | 
|  | ; X64_1LD-NEXT:    [[TMP7:%.*]] = bitcast i8* [[TMP6]] to i64* | 
|  | ; X64_1LD-NEXT:    [[TMP8:%.*]] = getelementptr i8, i8* [[Y]], i8 7 | 
|  | ; X64_1LD-NEXT:    [[TMP9:%.*]] = bitcast i8* [[TMP8]] to i64* | 
|  | ; X64_1LD-NEXT:    [[TMP10:%.*]] = load i64, i64* [[TMP7]] | 
|  | ; X64_1LD-NEXT:    [[TMP11:%.*]] = load i64, i64* [[TMP9]] | 
|  | ; X64_1LD-NEXT:    [[TMP12:%.*]] = icmp ne i64 [[TMP10]], [[TMP11]] | 
|  | ; X64_1LD-NEXT:    br i1 [[TMP12]], label [[RES_BLOCK]], label [[ENDBLOCK]] | 
|  | ; X64_1LD:       endblock: | 
|  | ; X64_1LD-NEXT:    [[PHI_RES:%.*]] = phi i32 [ 0, [[LOADBB1]] ], [ 1, [[RES_BLOCK]] ] | 
|  | ; X64_1LD-NEXT:    [[CMP:%.*]] = icmp eq i32 [[PHI_RES]], 0 | 
|  | ; X64_1LD-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X64_1LD-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | ; X64_2LD-LABEL: @cmp_eq15( | 
|  | ; X64_2LD-NEXT:    [[TMP1:%.*]] = bitcast i8* [[X:%.*]] to i64* | 
|  | ; X64_2LD-NEXT:    [[TMP2:%.*]] = bitcast i8* [[Y:%.*]] to i64* | 
|  | ; X64_2LD-NEXT:    [[TMP3:%.*]] = load i64, i64* [[TMP1]] | 
|  | ; X64_2LD-NEXT:    [[TMP4:%.*]] = load i64, i64* [[TMP2]] | 
|  | ; X64_2LD-NEXT:    [[TMP5:%.*]] = xor i64 [[TMP3]], [[TMP4]] | 
|  | ; X64_2LD-NEXT:    [[TMP6:%.*]] = getelementptr i8, i8* [[X]], i8 7 | 
|  | ; X64_2LD-NEXT:    [[TMP7:%.*]] = bitcast i8* [[TMP6]] to i64* | 
|  | ; X64_2LD-NEXT:    [[TMP8:%.*]] = getelementptr i8, i8* [[Y]], i8 7 | 
|  | ; X64_2LD-NEXT:    [[TMP9:%.*]] = bitcast i8* [[TMP8]] to i64* | 
|  | ; X64_2LD-NEXT:    [[TMP10:%.*]] = load i64, i64* [[TMP7]] | 
|  | ; X64_2LD-NEXT:    [[TMP11:%.*]] = load i64, i64* [[TMP9]] | 
|  | ; X64_2LD-NEXT:    [[TMP12:%.*]] = xor i64 [[TMP10]], [[TMP11]] | 
|  | ; X64_2LD-NEXT:    [[TMP13:%.*]] = or i64 [[TMP5]], [[TMP12]] | 
|  | ; X64_2LD-NEXT:    [[TMP14:%.*]] = icmp ne i64 [[TMP13]], 0 | 
|  | ; X64_2LD-NEXT:    [[TMP15:%.*]] = zext i1 [[TMP14]] to i32 | 
|  | ; X64_2LD-NEXT:    [[CMP:%.*]] = icmp eq i32 [[TMP15]], 0 | 
|  | ; X64_2LD-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X64_2LD-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 15) | 
|  | %cmp = icmp eq i32 %call, 0 | 
|  | %conv = zext i1 %cmp to i32 | 
|  | ret i32 %conv | 
|  | } | 
|  |  | 
|  | define i32 @cmp_eq16(i8* nocapture readonly %x, i8* nocapture readonly %y)  { | 
|  | ; X32-LABEL: @cmp_eq16( | 
|  | ; X32-NEXT:    [[CALL:%.*]] = tail call i32 @memcmp(i8* [[X:%.*]], i8* [[Y:%.*]], i64 16) | 
|  | ; X32-NEXT:    [[CMP:%.*]] = icmp eq i32 [[CALL]], 0 | 
|  | ; X32-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X32-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | ; X64-LABEL: @cmp_eq16( | 
|  | ; X64-NEXT:    [[TMP1:%.*]] = bitcast i8* [[X:%.*]] to i128* | 
|  | ; X64-NEXT:    [[TMP2:%.*]] = bitcast i8* [[Y:%.*]] to i128* | 
|  | ; X64-NEXT:    [[TMP3:%.*]] = load i128, i128* [[TMP1]] | 
|  | ; X64-NEXT:    [[TMP4:%.*]] = load i128, i128* [[TMP2]] | 
|  | ; X64-NEXT:    [[TMP5:%.*]] = icmp ne i128 [[TMP3]], [[TMP4]] | 
|  | ; X64-NEXT:    [[TMP6:%.*]] = zext i1 [[TMP5]] to i32 | 
|  | ; X64-NEXT:    [[CMP:%.*]] = icmp eq i32 [[TMP6]], 0 | 
|  | ; X64-NEXT:    [[CONV:%.*]] = zext i1 [[CMP]] to i32 | 
|  | ; X64-NEXT:    ret i32 [[CONV]] | 
|  | ; | 
|  | %call = tail call i32 @memcmp(i8* %x, i8* %y, i64 16) | 
|  | %cmp = icmp eq i32 %call, 0 | 
|  | %conv = zext i1 %cmp to i32 | 
|  | ret i32 %conv | 
|  | } | 
|  |  |