llvm/test/Transforms/IndVarSimplify/X86/replace-iv-with-loop-invariant.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=indvars -S | FileCheck %s

target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

@G = external global i32

define void @test0(ptr %arg) {
; CHECK-LABEL: @test0(
; CHECK-NEXT:  bb:
; CHECK-NEXT:    br label [[BB2:%.*]]
; CHECK:       bb2:
; CHECK-NEXT:    [[TMP:%.*]] = phi ptr [ [[ARG:%.*]], [[BB:%.*]] ], [ [[TMP7:%.*]], [[BB2]] ]
; CHECK-NEXT:    [[TMP4:%.*]] = call ptr @wobble(ptr nonnull [[TMP]], ptr null)
; CHECK-NEXT:    [[TMP5:%.*]] = load i32, ptr null, align 8
; CHECK-NEXT:    [[TMP7]] = load ptr, ptr undef, align 8
; CHECK-NEXT:    br label [[BB2]]
;
bb:
  br label %bb2

bb2:
  %tmp = phi ptr [%arg, %bb ], [ %tmp7, %bb2 ]
  %tmp4 = call ptr @wobble(ptr nonnull %tmp, ptr null)
  %tmp5 = load i32, ptr %tmp4, align 8
  %tmp7 = load ptr, ptr undef, align 8
  br label %bb2
}

define void @test1(ptr %arg) {
; CHECK-LABEL: @test1(
; CHECK-NEXT:  bb:
; CHECK-NEXT:    br label [[BB2:%.*]]
; CHECK:       bb2:
; CHECK-NEXT:    [[TMP:%.*]] = phi ptr [ [[ARG:%.*]], [[BB:%.*]] ], [ [[TMP7:%.*]], [[BB2]] ]
; CHECK-NEXT:    [[TMP4:%.*]] = call ptr @wobble(ptr nonnull [[TMP]], ptr inttoptr (i64 4 to ptr))
; CHECK-NEXT:    [[TMP5:%.*]] = load i32, ptr inttoptr (i64 4 to ptr), align 4
; CHECK-NEXT:    [[TMP7]] = load ptr, ptr undef, align 8
; CHECK-NEXT:    br label [[BB2]]
;
bb:
  br label %bb2

bb2:
  %tmp = phi ptr [%arg, %bb ], [ %tmp7, %bb2 ]
  %tmp4 = call ptr @wobble(ptr nonnull %tmp, ptr inttoptr (i64 4 to ptr))
  %tmp5 = load i32, ptr %tmp4
  %tmp7 = load ptr, ptr undef, align 8
  br label %bb2
}

define void @test2(ptr %arg) {
; CHECK-LABEL: @test2(
; CHECK-NEXT:  bb:
; CHECK-NEXT:    br label [[BB2:%.*]]
; CHECK:       bb2:
; CHECK-NEXT:    [[TMP:%.*]] = phi ptr [ [[ARG:%.*]], [[BB:%.*]] ], [ [[TMP7:%.*]], [[BB2]] ]
; CHECK-NEXT:    [[TMP4:%.*]] = call ptr @wobble(ptr nonnull [[TMP]], ptr @G)
; CHECK-NEXT:    [[TMP5:%.*]] = load i32, ptr @G, align 4
; CHECK-NEXT:    [[TMP7]] = load ptr, ptr undef, align 8
; CHECK-NEXT:    br label [[BB2]]
;
bb:
  br label %bb2

bb2:
  %tmp = phi ptr [%arg, %bb ], [ %tmp7, %bb2 ]
  %tmp4 = call ptr @wobble(ptr nonnull %tmp, ptr @G)
  %tmp5 = load i32, ptr %tmp4
  %tmp7 = load ptr, ptr undef, align 8
  br label %bb2
}

define void @test3(ptr %arg, ptr %loop.invariant) {
; CHECK-LABEL: @test3(
; CHECK-NEXT:  bb:
; CHECK-NEXT:    br label [[BB2:%.*]]
; CHECK:       bb2:
; CHECK-NEXT:    [[TMP:%.*]] = phi ptr [ [[ARG:%.*]], [[BB:%.*]] ], [ [[TMP7:%.*]], [[BB2]] ]
; CHECK-NEXT:    [[TMP4:%.*]] = call ptr @wobble(ptr nonnull [[TMP]], ptr [[LOOP_INVARIANT:%.*]])
; CHECK-NEXT:    [[TMP5:%.*]] = load i32, ptr [[LOOP_INVARIANT]], align 4
; CHECK-NEXT:    [[TMP7]] = load ptr, ptr undef, align 8
; CHECK-NEXT:    br label [[BB2]]
;
bb:
  br label %bb2

bb2:
  %tmp = phi ptr [%arg, %bb ], [ %tmp7, %bb2 ]
  %tmp4 = call ptr @wobble(ptr nonnull %tmp, ptr %loop.invariant)
  %tmp5 = load i32, ptr %tmp4
  %tmp7 = load ptr, ptr undef, align 8
  br label %bb2
}

define void @test4(ptr %arg, ptr %loop.invariant, i64 %N) {
; CHECK-LABEL: @test4(
; CHECK-NEXT:  bb:
; CHECK-NEXT:    [[TMP0:%.*]] = shl i64 [[N:%.*]], 8
; CHECK-NEXT:    [[UGLYGEP:%.*]] = getelementptr i8, ptr [[LOOP_INVARIANT:%.*]], i64 [[TMP0]]
; CHECK-NEXT:    br label [[BB2:%.*]]
; CHECK:       bb2:
; CHECK-NEXT:    [[TMP:%.*]] = phi ptr [ [[ARG:%.*]], [[BB:%.*]] ], [ [[TMP7:%.*]], [[BB2]] ]
; CHECK-NEXT:    [[MUL:%.*]] = mul nsw i64 [[N]], 64
; CHECK-NEXT:    [[PTR:%.*]] = getelementptr inbounds i32, ptr [[LOOP_INVARIANT]], i64 [[MUL]]
; CHECK-NEXT:    [[TMP4:%.*]] = call ptr @wobble(ptr nonnull [[TMP]], ptr [[PTR]])
; CHECK-NEXT:    [[TMP5:%.*]] = load i32, ptr [[UGLYGEP]], align 4
; CHECK-NEXT:    [[TMP7]] = load ptr, ptr undef, align 8
; CHECK-NEXT:    br label [[BB2]]
;
bb:
  br label %bb2

bb2:
  %tmp = phi ptr [%arg, %bb ], [ %tmp7, %bb2 ]
  %mul = mul nsw i64 %N, 64
  %ptr = getelementptr inbounds i32, ptr %loop.invariant, i64 %mul
  %tmp4 = call ptr @wobble(ptr nonnull %tmp, ptr %ptr)
  %tmp5 = load i32, ptr %tmp4
  %tmp7 = load ptr, ptr undef, align 8
  br label %bb2
}

declare ptr @wobble(ptr, ptr returned)