| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -passes=loop-idiom < %s -S | FileCheck %s |
| target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| ;; memcpy.atomic formation (atomic load & store) |
| define void @test1(i64 %Size) nounwind ssp { |
| ; CHECK-LABEL: @test1( |
| ; CHECK-NEXT: bb.nph: |
| ; CHECK-NEXT: [[BASE:%.*]] = alloca i8, i32 10000, align 1 |
| ; CHECK-NEXT: [[DEST:%.*]] = alloca i8, i32 10000, align 1 |
| ; CHECK-NEXT: call void @llvm.memcpy.element.unordered.atomic.p0.p0.i64(ptr align 1 [[DEST]], ptr align 1 [[BASE]], i64 [[SIZE:%.*]], i32 1) |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[INDVAR:%.*]] = phi i64 [ 0, [[BB_NPH:%.*]] ], [ [[INDVAR_NEXT:%.*]], [[FOR_BODY]] ] |
| ; CHECK-NEXT: [[I_0_014:%.*]] = getelementptr i8, ptr [[BASE]], i64 [[INDVAR]] |
| ; CHECK-NEXT: [[DESTI:%.*]] = getelementptr i8, ptr [[DEST]], i64 [[INDVAR]] |
| ; CHECK-NEXT: [[V:%.*]] = load atomic i8, ptr [[I_0_014]] unordered, align 1 |
| ; CHECK-NEXT: [[INDVAR_NEXT]] = add i64 [[INDVAR]], 1 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVAR_NEXT]], [[SIZE]] |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END:%.*]], label [[FOR_BODY]] |
| ; CHECK: for.end: |
| ; CHECK-NEXT: ret void |
| ; |
| bb.nph: |
| %Base = alloca i8, i32 10000 |
| %Dest = alloca i8, i32 10000 |
| br label %for.body |
| |
| for.body: ; preds = %bb.nph, %for.body |
| %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ] |
| %I.0.014 = getelementptr i8, ptr %Base, i64 %indvar |
| %DestI = getelementptr i8, ptr %Dest, i64 %indvar |
| %V = load atomic i8, ptr %I.0.014 unordered, align 1 |
| store atomic i8 %V, ptr %DestI unordered, align 1 |
| %indvar.next = add i64 %indvar, 1 |
| %exitcond = icmp eq i64 %indvar.next, %Size |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: ; preds = %for.body, %entry |
| ret void |
| } |
| |
| ;; memcpy.atomic formation (atomic store, normal load) |
| define void @test2(i64 %Size) nounwind ssp { |
| ; CHECK-LABEL: @test2( |
| ; CHECK-NEXT: bb.nph: |
| ; CHECK-NEXT: [[BASE:%.*]] = alloca i8, i32 10000, align 1 |
| ; CHECK-NEXT: [[DEST:%.*]] = alloca i8, i32 10000, align 1 |
| ; CHECK-NEXT: call void @llvm.memcpy.element.unordered.atomic.p0.p0.i64(ptr align 1 [[DEST]], ptr align 1 [[BASE]], i64 [[SIZE:%.*]], i32 1) |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[INDVAR:%.*]] = phi i64 [ 0, [[BB_NPH:%.*]] ], [ [[INDVAR_NEXT:%.*]], [[FOR_BODY]] ] |
| ; CHECK-NEXT: [[I_0_014:%.*]] = getelementptr i8, ptr [[BASE]], i64 [[INDVAR]] |
| ; CHECK-NEXT: [[DESTI:%.*]] = getelementptr i8, ptr [[DEST]], i64 [[INDVAR]] |
| ; CHECK-NEXT: [[V:%.*]] = load i8, ptr [[I_0_014]], align 1 |
| ; CHECK-NEXT: [[INDVAR_NEXT]] = add i64 [[INDVAR]], 1 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVAR_NEXT]], [[SIZE]] |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END:%.*]], label [[FOR_BODY]] |
| ; CHECK: for.end: |
| ; CHECK-NEXT: ret void |
| ; |
| bb.nph: |
| %Base = alloca i8, i32 10000 |
| %Dest = alloca i8, i32 10000 |
| br label %for.body |
| |
| for.body: ; preds = %bb.nph, %for.body |
| %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ] |
| %I.0.014 = getelementptr i8, ptr %Base, i64 %indvar |
| %DestI = getelementptr i8, ptr %Dest, i64 %indvar |
| %V = load i8, ptr %I.0.014, align 1 |
| store atomic i8 %V, ptr %DestI unordered, align 1 |
| %indvar.next = add i64 %indvar, 1 |
| %exitcond = icmp eq i64 %indvar.next, %Size |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: ; preds = %for.body, %entry |
| ret void |
| } |
| |
| ;; memcpy.atomic formation (atomic store, normal load w/ no align) |
| define void @test2b(i64 %Size) nounwind ssp { |
| ; CHECK-LABEL: @test2b( |
| ; CHECK-NEXT: bb.nph: |
| ; CHECK-NEXT: [[BASE:%.*]] = alloca i8, i32 10000, align 1 |
| ; CHECK-NEXT: [[DEST:%.*]] = alloca i8, i32 10000, align 1 |
| ; CHECK-NEXT: call void @llvm.memcpy.element.unordered.atomic.p0.p0.i64(ptr align 1 [[DEST]], ptr align 1 [[BASE]], i64 [[SIZE:%.*]], i32 1) |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[INDVAR:%.*]] = phi i64 [ 0, [[BB_NPH:%.*]] ], [ [[INDVAR_NEXT:%.*]], [[FOR_BODY]] ] |
| ; CHECK-NEXT: [[I_0_014:%.*]] = getelementptr i8, ptr [[BASE]], i64 [[INDVAR]] |
| ; CHECK-NEXT: [[DESTI:%.*]] = getelementptr i8, ptr [[DEST]], i64 [[INDVAR]] |
| ; CHECK-NEXT: [[V:%.*]] = load i8, ptr [[I_0_014]], align 1 |
| ; CHECK-NEXT: [[INDVAR_NEXT]] = add i64 [[INDVAR]], 1 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVAR_NEXT]], [[SIZE]] |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END:%.*]], label [[FOR_BODY]] |
| ; CHECK: for.end: |
| ; CHECK-NEXT: ret void |
| ; |
| bb.nph: |
| %Base = alloca i8, i32 10000 |
| %Dest = alloca i8, i32 10000 |
| br label %for.body |
| |
| for.body: ; preds = %bb.nph, %for.body |
| %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ] |
| %I.0.014 = getelementptr i8, ptr %Base, i64 %indvar |
| %DestI = getelementptr i8, ptr %Dest, i64 %indvar |
| %V = load i8, ptr %I.0.014 |
| store atomic i8 %V, ptr %DestI unordered, align 1 |
| %indvar.next = add i64 %indvar, 1 |
| %exitcond = icmp eq i64 %indvar.next, %Size |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: ; preds = %for.body, %entry |
| ret void |
| } |
| |
| ;; memcpy.atomic formation rejection (atomic store, normal load w/ bad align) |
| define void @test2c(i64 %Size) nounwind ssp { |
| ; CHECK-LABEL: @test2c( |
| ; CHECK-NEXT: bb.nph: |
| ; CHECK-NEXT: [[BASE:%.*]] = alloca i32, i32 10000, align 4 |
| ; CHECK-NEXT: [[DEST:%.*]] = alloca i32, i32 10000, align 4 |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[INDVAR:%.*]] = phi i64 [ 0, [[BB_NPH:%.*]] ], [ [[INDVAR_NEXT:%.*]], [[FOR_BODY]] ] |
| ; CHECK-NEXT: [[I_0_014:%.*]] = getelementptr i32, ptr [[BASE]], i64 [[INDVAR]] |
| ; CHECK-NEXT: [[DESTI:%.*]] = getelementptr i32, ptr [[DEST]], i64 [[INDVAR]] |
| ; CHECK-NEXT: [[V:%.*]] = load i32, ptr [[I_0_014]], align 2 |
| ; CHECK-NEXT: store atomic i32 [[V]], ptr [[DESTI]] unordered, align 4 |
| ; CHECK-NEXT: [[INDVAR_NEXT]] = add i64 [[INDVAR]], 1 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVAR_NEXT]], [[SIZE:%.*]] |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END:%.*]], label [[FOR_BODY]] |
| ; CHECK: for.end: |
| ; CHECK-NEXT: ret void |
| ; |
| bb.nph: |
| %Base = alloca i32, i32 10000 |
| %Dest = alloca i32, i32 10000 |
| br label %for.body |
| |
| for.body: ; preds = %bb.nph, %for.body |
| %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ] |
| %I.0.014 = getelementptr i32, ptr %Base, i64 %indvar |
| %DestI = getelementptr i32, ptr %Dest, i64 %indvar |
| %V = load i32, ptr %I.0.014, align 2 |
| store atomic i32 %V, ptr %DestI unordered, align 4 |
| %indvar.next = add i64 %indvar, 1 |
| %exitcond = icmp eq i64 %indvar.next, %Size |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: ; preds = %for.body, %entry |
| ret void |
| } |
| |
| ;; memcpy.atomic formation rejection (atomic store w/ bad align, normal load) |
| define void @test2d(i64 %Size) nounwind ssp { |
| ; CHECK-LABEL: @test2d( |
| ; CHECK-NEXT: bb.nph: |
| ; CHECK-NEXT: [[BASE:%.*]] = alloca i32, i32 10000, align 4 |
| ; CHECK-NEXT: [[DEST:%.*]] = alloca i32, i32 10000, align 4 |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[INDVAR:%.*]] = phi i64 [ 0, [[BB_NPH:%.*]] ], [ [[INDVAR_NEXT:%.*]], [[FOR_BODY]] ] |
| ; CHECK-NEXT: [[I_0_014:%.*]] = getelementptr i32, ptr [[BASE]], i64 [[INDVAR]] |
| ; CHECK-NEXT: [[DESTI:%.*]] = getelementptr i32, ptr [[DEST]], i64 [[INDVAR]] |
| ; CHECK-NEXT: [[V:%.*]] = load i32, ptr [[I_0_014]], align 4 |
| ; CHECK-NEXT: store atomic i32 [[V]], ptr [[DESTI]] unordered, align 2 |
| ; CHECK-NEXT: [[INDVAR_NEXT]] = add i64 [[INDVAR]], 1 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVAR_NEXT]], [[SIZE:%.*]] |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END:%.*]], label [[FOR_BODY]] |
| ; CHECK: for.end: |
| ; CHECK-NEXT: ret void |
| ; |
| bb.nph: |
| %Base = alloca i32, i32 10000 |
| %Dest = alloca i32, i32 10000 |
| br label %for.body |
| |
| for.body: ; preds = %bb.nph, %for.body |
| %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ] |
| %I.0.014 = getelementptr i32, ptr %Base, i64 %indvar |
| %DestI = getelementptr i32, ptr %Dest, i64 %indvar |
| %V = load i32, ptr %I.0.014, align 4 |
| store atomic i32 %V, ptr %DestI unordered, align 2 |
| %indvar.next = add i64 %indvar, 1 |
| %exitcond = icmp eq i64 %indvar.next, %Size |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: ; preds = %for.body, %entry |
| ret void |
| } |
| |
| |
| ;; memcpy.atomic formation (normal store, atomic load) |
| define void @test3(i64 %Size) nounwind ssp { |
| ; CHECK-LABEL: @test3( |
| ; CHECK-NEXT: bb.nph: |
| ; CHECK-NEXT: [[BASE:%.*]] = alloca i8, i32 10000, align 1 |
| ; CHECK-NEXT: [[DEST:%.*]] = alloca i8, i32 10000, align 1 |
| ; CHECK-NEXT: call void @llvm.memcpy.element.unordered.atomic.p0.p0.i64(ptr align 1 [[DEST]], ptr align 1 [[BASE]], i64 [[SIZE:%.*]], i32 1) |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[INDVAR:%.*]] = phi i64 [ 0, [[BB_NPH:%.*]] ], [ [[INDVAR_NEXT:%.*]], [[FOR_BODY]] ] |
| ; CHECK-NEXT: [[I_0_014:%.*]] = getelementptr i8, ptr [[BASE]], i64 [[INDVAR]] |
| ; CHECK-NEXT: [[DESTI:%.*]] = getelementptr i8, ptr [[DEST]], i64 [[INDVAR]] |
| ; CHECK-NEXT: [[V:%.*]] = load atomic i8, ptr [[I_0_014]] unordered, align 1 |
| ; CHECK-NEXT: [[INDVAR_NEXT]] = add i64 [[INDVAR]], 1 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVAR_NEXT]], [[SIZE]] |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END:%.*]], label [[FOR_BODY]] |
| ; CHECK: for.end: |
| ; CHECK-NEXT: ret void |
| ; |
| bb.nph: |
| %Base = alloca i8, i32 10000 |
| %Dest = alloca i8, i32 10000 |
| br label %for.body |
| |
| for.body: ; preds = %bb.nph, %for.body |
| %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ] |
| %I.0.014 = getelementptr i8, ptr %Base, i64 %indvar |
| %DestI = getelementptr i8, ptr %Dest, i64 %indvar |
| %V = load atomic i8, ptr %I.0.014 unordered, align 1 |
| store i8 %V, ptr %DestI, align 1 |
| %indvar.next = add i64 %indvar, 1 |
| %exitcond = icmp eq i64 %indvar.next, %Size |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: ; preds = %for.body, %entry |
| ret void |
| } |
| |
| ;; memcpy.atomic formation rejection (normal store w/ no align, atomic load) |
| define void @test3b(i64 %Size) nounwind ssp { |
| ; CHECK-LABEL: @test3b( |
| ; CHECK-NEXT: bb.nph: |
| ; CHECK-NEXT: [[BASE:%.*]] = alloca i8, i32 10000, align 1 |
| ; CHECK-NEXT: [[DEST:%.*]] = alloca i8, i32 10000, align 1 |
| ; CHECK-NEXT: call void @llvm.memcpy.element.unordered.atomic.p0.p0.i64(ptr align 1 [[DEST]], ptr align 1 [[BASE]], i64 [[SIZE:%.*]], i32 1) |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[INDVAR:%.*]] = phi i64 [ 0, [[BB_NPH:%.*]] ], [ [[INDVAR_NEXT:%.*]], [[FOR_BODY]] ] |
| ; CHECK-NEXT: [[I_0_014:%.*]] = getelementptr i8, ptr [[BASE]], i64 [[INDVAR]] |
| ; CHECK-NEXT: [[DESTI:%.*]] = getelementptr i8, ptr [[DEST]], i64 [[INDVAR]] |
| ; CHECK-NEXT: [[V:%.*]] = load atomic i8, ptr [[I_0_014]] unordered, align 1 |
| ; CHECK-NEXT: [[INDVAR_NEXT]] = add i64 [[INDVAR]], 1 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVAR_NEXT]], [[SIZE]] |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END:%.*]], label [[FOR_BODY]] |
| ; CHECK: for.end: |
| ; CHECK-NEXT: ret void |
| ; |
| bb.nph: |
| %Base = alloca i8, i32 10000 |
| %Dest = alloca i8, i32 10000 |
| br label %for.body |
| |
| for.body: ; preds = %bb.nph, %for.body |
| %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ] |
| %I.0.014 = getelementptr i8, ptr %Base, i64 %indvar |
| %DestI = getelementptr i8, ptr %Dest, i64 %indvar |
| %V = load atomic i8, ptr %I.0.014 unordered, align 1 |
| store i8 %V, ptr %DestI |
| %indvar.next = add i64 %indvar, 1 |
| %exitcond = icmp eq i64 %indvar.next, %Size |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: ; preds = %for.body, %entry |
| ret void |
| } |
| |
| ;; memcpy.atomic formation rejection (normal store, atomic load w/ bad align) |
| define void @test3c(i64 %Size) nounwind ssp { |
| ; CHECK-LABEL: @test3c( |
| ; CHECK-NEXT: bb.nph: |
| ; CHECK-NEXT: [[BASE:%.*]] = alloca i32, i32 10000, align 4 |
| ; CHECK-NEXT: [[DEST:%.*]] = alloca i32, i32 10000, align 4 |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[INDVAR:%.*]] = phi i64 [ 0, [[BB_NPH:%.*]] ], [ [[INDVAR_NEXT:%.*]], [[FOR_BODY]] ] |
| ; CHECK-NEXT: [[I_0_014:%.*]] = getelementptr i32, ptr [[BASE]], i64 [[INDVAR]] |
| ; CHECK-NEXT: [[DESTI:%.*]] = getelementptr i32, ptr [[DEST]], i64 [[INDVAR]] |
| ; CHECK-NEXT: [[V:%.*]] = load atomic i32, ptr [[I_0_014]] unordered, align 2 |
| ; CHECK-NEXT: store i32 [[V]], ptr [[DESTI]], align 4 |
| ; CHECK-NEXT: [[INDVAR_NEXT]] = add i64 [[INDVAR]], 1 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVAR_NEXT]], [[SIZE:%.*]] |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END:%.*]], label [[FOR_BODY]] |
| ; CHECK: for.end: |
| ; CHECK-NEXT: ret void |
| ; |
| bb.nph: |
| %Base = alloca i32, i32 10000 |
| %Dest = alloca i32, i32 10000 |
| br label %for.body |
| |
| for.body: ; preds = %bb.nph, %for.body |
| %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ] |
| %I.0.014 = getelementptr i32, ptr %Base, i64 %indvar |
| %DestI = getelementptr i32, ptr %Dest, i64 %indvar |
| %V = load atomic i32, ptr %I.0.014 unordered, align 2 |
| store i32 %V, ptr %DestI, align 4 |
| %indvar.next = add i64 %indvar, 1 |
| %exitcond = icmp eq i64 %indvar.next, %Size |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: ; preds = %for.body, %entry |
| ret void |
| } |
| |
| ;; memcpy.atomic formation rejection (normal store w/ bad align, atomic load) |
| define void @test3d(i64 %Size) nounwind ssp { |
| ; CHECK-LABEL: @test3d( |
| ; CHECK-NEXT: bb.nph: |
| ; CHECK-NEXT: [[BASE:%.*]] = alloca i32, i32 10000, align 4 |
| ; CHECK-NEXT: [[DEST:%.*]] = alloca i32, i32 10000, align 4 |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[INDVAR:%.*]] = phi i64 [ 0, [[BB_NPH:%.*]] ], [ [[INDVAR_NEXT:%.*]], [[FOR_BODY]] ] |
| ; CHECK-NEXT: [[I_0_014:%.*]] = getelementptr i32, ptr [[BASE]], i64 [[INDVAR]] |
| ; CHECK-NEXT: [[DESTI:%.*]] = getelementptr i32, ptr [[DEST]], i64 [[INDVAR]] |
| ; CHECK-NEXT: [[V:%.*]] = load atomic i32, ptr [[I_0_014]] unordered, align 4 |
| ; CHECK-NEXT: store i32 [[V]], ptr [[DESTI]], align 2 |
| ; CHECK-NEXT: [[INDVAR_NEXT]] = add i64 [[INDVAR]], 1 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVAR_NEXT]], [[SIZE:%.*]] |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END:%.*]], label [[FOR_BODY]] |
| ; CHECK: for.end: |
| ; CHECK-NEXT: ret void |
| ; |
| bb.nph: |
| %Base = alloca i32, i32 10000 |
| %Dest = alloca i32, i32 10000 |
| br label %for.body |
| |
| for.body: ; preds = %bb.nph, %for.body |
| %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ] |
| %I.0.014 = getelementptr i32, ptr %Base, i64 %indvar |
| %DestI = getelementptr i32, ptr %Dest, i64 %indvar |
| %V = load atomic i32, ptr %I.0.014 unordered, align 4 |
| store i32 %V, ptr %DestI, align 2 |
| %indvar.next = add i64 %indvar, 1 |
| %exitcond = icmp eq i64 %indvar.next, %Size |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: ; preds = %for.body, %entry |
| ret void |
| } |
| |
| |
| ;; memcpy.atomic formation rejection (atomic load, ordered-atomic store) |
| define void @test4(i64 %Size) nounwind ssp { |
| ; CHECK-LABEL: @test4( |
| ; CHECK-NEXT: bb.nph: |
| ; CHECK-NEXT: [[BASE:%.*]] = alloca i8, i32 10000, align 1 |
| ; CHECK-NEXT: [[DEST:%.*]] = alloca i8, i32 10000, align 1 |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[INDVAR:%.*]] = phi i64 [ 0, [[BB_NPH:%.*]] ], [ [[INDVAR_NEXT:%.*]], [[FOR_BODY]] ] |
| ; CHECK-NEXT: [[I_0_014:%.*]] = getelementptr i8, ptr [[BASE]], i64 [[INDVAR]] |
| ; CHECK-NEXT: [[DESTI:%.*]] = getelementptr i8, ptr [[DEST]], i64 [[INDVAR]] |
| ; CHECK-NEXT: [[V:%.*]] = load atomic i8, ptr [[I_0_014]] unordered, align 1 |
| ; CHECK-NEXT: store atomic i8 [[V]], ptr [[DESTI]] monotonic, align 1 |
| ; CHECK-NEXT: [[INDVAR_NEXT]] = add i64 [[INDVAR]], 1 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVAR_NEXT]], [[SIZE:%.*]] |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END:%.*]], label [[FOR_BODY]] |
| ; CHECK: for.end: |
| ; CHECK-NEXT: ret void |
| ; |
| bb.nph: |
| %Base = alloca i8, i32 10000 |
| %Dest = alloca i8, i32 10000 |
| br label %for.body |
| |
| for.body: ; preds = %bb.nph, %for.body |
| %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ] |
| %I.0.014 = getelementptr i8, ptr %Base, i64 %indvar |
| %DestI = getelementptr i8, ptr %Dest, i64 %indvar |
| %V = load atomic i8, ptr %I.0.014 unordered, align 1 |
| store atomic i8 %V, ptr %DestI monotonic, align 1 |
| %indvar.next = add i64 %indvar, 1 |
| %exitcond = icmp eq i64 %indvar.next, %Size |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: ; preds = %for.body, %entry |
| ret void |
| } |
| |
| ;; memcpy.atomic formation rejection (ordered-atomic load, unordered-atomic store) |
| define void @test5(i64 %Size) nounwind ssp { |
| ; CHECK-LABEL: @test5( |
| ; CHECK-NEXT: bb.nph: |
| ; CHECK-NEXT: [[BASE:%.*]] = alloca i8, i32 10000, align 1 |
| ; CHECK-NEXT: [[DEST:%.*]] = alloca i8, i32 10000, align 1 |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[INDVAR:%.*]] = phi i64 [ 0, [[BB_NPH:%.*]] ], [ [[INDVAR_NEXT:%.*]], [[FOR_BODY]] ] |
| ; CHECK-NEXT: [[I_0_014:%.*]] = getelementptr i8, ptr [[BASE]], i64 [[INDVAR]] |
| ; CHECK-NEXT: [[DESTI:%.*]] = getelementptr i8, ptr [[DEST]], i64 [[INDVAR]] |
| ; CHECK-NEXT: [[V:%.*]] = load atomic i8, ptr [[I_0_014]] monotonic, align 1 |
| ; CHECK-NEXT: store atomic i8 [[V]], ptr [[DESTI]] unordered, align 1 |
| ; CHECK-NEXT: [[INDVAR_NEXT]] = add i64 [[INDVAR]], 1 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVAR_NEXT]], [[SIZE:%.*]] |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END:%.*]], label [[FOR_BODY]] |
| ; CHECK: for.end: |
| ; CHECK-NEXT: ret void |
| ; |
| bb.nph: |
| %Base = alloca i8, i32 10000 |
| %Dest = alloca i8, i32 10000 |
| br label %for.body |
| |
| for.body: ; preds = %bb.nph, %for.body |
| %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ] |
| %I.0.014 = getelementptr i8, ptr %Base, i64 %indvar |
| %DestI = getelementptr i8, ptr %Dest, i64 %indvar |
| %V = load atomic i8, ptr %I.0.014 monotonic, align 1 |
| store atomic i8 %V, ptr %DestI unordered, align 1 |
| %indvar.next = add i64 %indvar, 1 |
| %exitcond = icmp eq i64 %indvar.next, %Size |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: ; preds = %for.body, %entry |
| ret void |
| } |
| |
| ;; memcpy.atomic formation (atomic load & store) -- element size 2 |
| define void @test6(i64 %Size) nounwind ssp { |
| ; CHECK-LABEL: @test6( |
| ; CHECK-NEXT: bb.nph: |
| ; CHECK-NEXT: [[BASE:%.*]] = alloca i16, i32 10000, align 2 |
| ; CHECK-NEXT: [[DEST:%.*]] = alloca i16, i32 10000, align 2 |
| ; CHECK-NEXT: [[TMP0:%.*]] = shl nuw i64 [[SIZE:%.*]], 1 |
| ; CHECK-NEXT: call void @llvm.memcpy.element.unordered.atomic.p0.p0.i64(ptr align 2 [[DEST]], ptr align 2 [[BASE]], i64 [[TMP0]], i32 2) |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[INDVAR:%.*]] = phi i64 [ 0, [[BB_NPH:%.*]] ], [ [[INDVAR_NEXT:%.*]], [[FOR_BODY]] ] |
| ; CHECK-NEXT: [[I_0_014:%.*]] = getelementptr i16, ptr [[BASE]], i64 [[INDVAR]] |
| ; CHECK-NEXT: [[DESTI:%.*]] = getelementptr i16, ptr [[DEST]], i64 [[INDVAR]] |
| ; CHECK-NEXT: [[V:%.*]] = load atomic i16, ptr [[I_0_014]] unordered, align 2 |
| ; CHECK-NEXT: [[INDVAR_NEXT]] = add i64 [[INDVAR]], 1 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVAR_NEXT]], [[SIZE]] |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END:%.*]], label [[FOR_BODY]] |
| ; CHECK: for.end: |
| ; CHECK-NEXT: ret void |
| ; |
| bb.nph: |
| %Base = alloca i16, i32 10000 |
| %Dest = alloca i16, i32 10000 |
| br label %for.body |
| |
| for.body: ; preds = %bb.nph, %for.body |
| %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ] |
| %I.0.014 = getelementptr i16, ptr %Base, i64 %indvar |
| %DestI = getelementptr i16, ptr %Dest, i64 %indvar |
| %V = load atomic i16, ptr %I.0.014 unordered, align 2 |
| store atomic i16 %V, ptr %DestI unordered, align 2 |
| %indvar.next = add i64 %indvar, 1 |
| %exitcond = icmp eq i64 %indvar.next, %Size |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: ; preds = %for.body, %entry |
| ret void |
| } |
| |
| ;; memcpy.atomic formation (atomic load & store) -- element size 4 |
| define void @test7(i64 %Size) nounwind ssp { |
| ; CHECK-LABEL: @test7( |
| ; CHECK-NEXT: bb.nph: |
| ; CHECK-NEXT: [[BASE:%.*]] = alloca i32, i32 10000, align 4 |
| ; CHECK-NEXT: [[DEST:%.*]] = alloca i32, i32 10000, align 4 |
| ; CHECK-NEXT: [[TMP0:%.*]] = shl nuw i64 [[SIZE:%.*]], 2 |
| ; CHECK-NEXT: call void @llvm.memcpy.element.unordered.atomic.p0.p0.i64(ptr align 4 [[DEST]], ptr align 4 [[BASE]], i64 [[TMP0]], i32 4) |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[INDVAR:%.*]] = phi i64 [ 0, [[BB_NPH:%.*]] ], [ [[INDVAR_NEXT:%.*]], [[FOR_BODY]] ] |
| ; CHECK-NEXT: [[I_0_014:%.*]] = getelementptr i32, ptr [[BASE]], i64 [[INDVAR]] |
| ; CHECK-NEXT: [[DESTI:%.*]] = getelementptr i32, ptr [[DEST]], i64 [[INDVAR]] |
| ; CHECK-NEXT: [[V:%.*]] = load atomic i32, ptr [[I_0_014]] unordered, align 4 |
| ; CHECK-NEXT: [[INDVAR_NEXT]] = add i64 [[INDVAR]], 1 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVAR_NEXT]], [[SIZE]] |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END:%.*]], label [[FOR_BODY]] |
| ; CHECK: for.end: |
| ; CHECK-NEXT: ret void |
| ; |
| bb.nph: |
| %Base = alloca i32, i32 10000 |
| %Dest = alloca i32, i32 10000 |
| br label %for.body |
| |
| for.body: ; preds = %bb.nph, %for.body |
| %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ] |
| %I.0.014 = getelementptr i32, ptr %Base, i64 %indvar |
| %DestI = getelementptr i32, ptr %Dest, i64 %indvar |
| %V = load atomic i32, ptr %I.0.014 unordered, align 4 |
| store atomic i32 %V, ptr %DestI unordered, align 4 |
| %indvar.next = add i64 %indvar, 1 |
| %exitcond = icmp eq i64 %indvar.next, %Size |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: ; preds = %for.body, %entry |
| ret void |
| } |
| |
| ;; memcpy.atomic formation (atomic load & store) -- element size 8 |
| define void @test8(i64 %Size) nounwind ssp { |
| ; CHECK-LABEL: @test8( |
| ; CHECK-NEXT: bb.nph: |
| ; CHECK-NEXT: [[BASE:%.*]] = alloca i64, i32 10000, align 8 |
| ; CHECK-NEXT: [[DEST:%.*]] = alloca i64, i32 10000, align 8 |
| ; CHECK-NEXT: [[TMP0:%.*]] = shl nuw i64 [[SIZE:%.*]], 3 |
| ; CHECK-NEXT: call void @llvm.memcpy.element.unordered.atomic.p0.p0.i64(ptr align 8 [[DEST]], ptr align 8 [[BASE]], i64 [[TMP0]], i32 8) |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[INDVAR:%.*]] = phi i64 [ 0, [[BB_NPH:%.*]] ], [ [[INDVAR_NEXT:%.*]], [[FOR_BODY]] ] |
| ; CHECK-NEXT: [[I_0_014:%.*]] = getelementptr i64, ptr [[BASE]], i64 [[INDVAR]] |
| ; CHECK-NEXT: [[DESTI:%.*]] = getelementptr i64, ptr [[DEST]], i64 [[INDVAR]] |
| ; CHECK-NEXT: [[V:%.*]] = load atomic i64, ptr [[I_0_014]] unordered, align 8 |
| ; CHECK-NEXT: [[INDVAR_NEXT]] = add i64 [[INDVAR]], 1 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVAR_NEXT]], [[SIZE]] |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END:%.*]], label [[FOR_BODY]] |
| ; CHECK: for.end: |
| ; CHECK-NEXT: ret void |
| ; |
| bb.nph: |
| %Base = alloca i64, i32 10000 |
| %Dest = alloca i64, i32 10000 |
| br label %for.body |
| |
| for.body: ; preds = %bb.nph, %for.body |
| %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ] |
| %I.0.014 = getelementptr i64, ptr %Base, i64 %indvar |
| %DestI = getelementptr i64, ptr %Dest, i64 %indvar |
| %V = load atomic i64, ptr %I.0.014 unordered, align 8 |
| store atomic i64 %V, ptr %DestI unordered, align 8 |
| %indvar.next = add i64 %indvar, 1 |
| %exitcond = icmp eq i64 %indvar.next, %Size |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: ; preds = %for.body, %entry |
| ret void |
| } |
| |
| ;; memcpy.atomic formation rejection (atomic load & store) -- element size 16 |
| define void @test9(i64 %Size) nounwind ssp { |
| ; CHECK-LABEL: @test9( |
| ; CHECK-NEXT: bb.nph: |
| ; CHECK-NEXT: [[BASE:%.*]] = alloca i128, i32 10000, align 8 |
| ; CHECK-NEXT: [[DEST:%.*]] = alloca i128, i32 10000, align 8 |
| ; CHECK-NEXT: [[TMP0:%.*]] = shl nuw i64 [[SIZE:%.*]], 4 |
| ; CHECK-NEXT: call void @llvm.memcpy.element.unordered.atomic.p0.p0.i64(ptr align 16 [[DEST]], ptr align 16 [[BASE]], i64 [[TMP0]], i32 16) |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[INDVAR:%.*]] = phi i64 [ 0, [[BB_NPH:%.*]] ], [ [[INDVAR_NEXT:%.*]], [[FOR_BODY]] ] |
| ; CHECK-NEXT: [[I_0_014:%.*]] = getelementptr i128, ptr [[BASE]], i64 [[INDVAR]] |
| ; CHECK-NEXT: [[DESTI:%.*]] = getelementptr i128, ptr [[DEST]], i64 [[INDVAR]] |
| ; CHECK-NEXT: [[V:%.*]] = load atomic i128, ptr [[I_0_014]] unordered, align 16 |
| ; CHECK-NEXT: [[INDVAR_NEXT]] = add i64 [[INDVAR]], 1 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVAR_NEXT]], [[SIZE]] |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END:%.*]], label [[FOR_BODY]] |
| ; CHECK: for.end: |
| ; CHECK-NEXT: ret void |
| ; |
| bb.nph: |
| %Base = alloca i128, i32 10000 |
| %Dest = alloca i128, i32 10000 |
| br label %for.body |
| |
| for.body: ; preds = %bb.nph, %for.body |
| %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ] |
| %I.0.014 = getelementptr i128, ptr %Base, i64 %indvar |
| %DestI = getelementptr i128, ptr %Dest, i64 %indvar |
| %V = load atomic i128, ptr %I.0.014 unordered, align 16 |
| store atomic i128 %V, ptr %DestI unordered, align 16 |
| %indvar.next = add i64 %indvar, 1 |
| %exitcond = icmp eq i64 %indvar.next, %Size |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: ; preds = %for.body, %entry |
| ret void |
| } |
| |
| ;; memcpy.atomic formation rejection (atomic load & store) -- element size 32 |
| define void @test10(i64 %Size) nounwind ssp { |
| ; CHECK-LABEL: @test10( |
| ; CHECK-NEXT: bb.nph: |
| ; CHECK-NEXT: [[BASE:%.*]] = alloca i256, i32 10000, align 8 |
| ; CHECK-NEXT: [[DEST:%.*]] = alloca i256, i32 10000, align 8 |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[INDVAR:%.*]] = phi i64 [ 0, [[BB_NPH:%.*]] ], [ [[INDVAR_NEXT:%.*]], [[FOR_BODY]] ] |
| ; CHECK-NEXT: [[I_0_014:%.*]] = getelementptr i256, ptr [[BASE]], i64 [[INDVAR]] |
| ; CHECK-NEXT: [[DESTI:%.*]] = getelementptr i256, ptr [[DEST]], i64 [[INDVAR]] |
| ; CHECK-NEXT: [[V:%.*]] = load atomic i256, ptr [[I_0_014]] unordered, align 32 |
| ; CHECK-NEXT: store atomic i256 [[V]], ptr [[DESTI]] unordered, align 32 |
| ; CHECK-NEXT: [[INDVAR_NEXT]] = add i64 [[INDVAR]], 1 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVAR_NEXT]], [[SIZE:%.*]] |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END:%.*]], label [[FOR_BODY]] |
| ; CHECK: for.end: |
| ; CHECK-NEXT: ret void |
| ; |
| bb.nph: |
| %Base = alloca i256, i32 10000 |
| %Dest = alloca i256, i32 10000 |
| br label %for.body |
| |
| for.body: ; preds = %bb.nph, %for.body |
| %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ] |
| %I.0.014 = getelementptr i256, ptr %Base, i64 %indvar |
| %DestI = getelementptr i256, ptr %Dest, i64 %indvar |
| %V = load atomic i256, ptr %I.0.014 unordered, align 32 |
| store atomic i256 %V, ptr %DestI unordered, align 32 |
| %indvar.next = add i64 %indvar, 1 |
| %exitcond = icmp eq i64 %indvar.next, %Size |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: ; preds = %for.body, %entry |
| ret void |
| } |
| |
| |
| |
| ; Make sure that atomic memset doesn't get recognized by mistake |
| define void @test_nomemset(ptr %Base, i64 %Size) nounwind ssp { |
| ; CHECK-LABEL: @test_nomemset( |
| ; CHECK-NEXT: bb.nph: |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[INDVAR:%.*]] = phi i64 [ 0, [[BB_NPH:%.*]] ], [ [[INDVAR_NEXT:%.*]], [[FOR_BODY]] ] |
| ; CHECK-NEXT: [[I_0_014:%.*]] = getelementptr i8, ptr [[BASE:%.*]], i64 [[INDVAR]] |
| ; CHECK-NEXT: store atomic i8 0, ptr [[I_0_014]] unordered, align 1 |
| ; CHECK-NEXT: [[INDVAR_NEXT]] = add i64 [[INDVAR]], 1 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVAR_NEXT]], [[SIZE:%.*]] |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END:%.*]], label [[FOR_BODY]] |
| ; CHECK: for.end: |
| ; CHECK-NEXT: ret void |
| ; |
| bb.nph: ; preds = %entry |
| br label %for.body |
| |
| for.body: ; preds = %bb.nph, %for.body |
| %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ] |
| %I.0.014 = getelementptr i8, ptr %Base, i64 %indvar |
| store atomic i8 0, ptr %I.0.014 unordered, align 1 |
| %indvar.next = add i64 %indvar, 1 |
| %exitcond = icmp eq i64 %indvar.next, %Size |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: ; preds = %for.body, %entry |
| ret void |
| } |
| |
| ; Verify that unordered memset_pattern isn't recognized. |
| ; This is a replica of test11_pattern from basic.ll |
| define void @test_nomemset_pattern(ptr nocapture %P) nounwind ssp { |
| ; CHECK-LABEL: @test_nomemset_pattern( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[INDVAR:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[INDVAR_NEXT:%.*]], [[FOR_BODY]] ] |
| ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr i32, ptr [[P:%.*]], i64 [[INDVAR]] |
| ; CHECK-NEXT: store atomic i32 1, ptr [[ARRAYIDX]] unordered, align 4 |
| ; CHECK-NEXT: [[INDVAR_NEXT]] = add i64 [[INDVAR]], 1 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVAR_NEXT]], 10000 |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END:%.*]], label [[FOR_BODY]] |
| ; CHECK: for.end: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| br label %for.body |
| |
| for.body: ; preds = %entry, %for.body |
| %indvar = phi i64 [ 0, %entry ], [ %indvar.next, %for.body ] |
| %arrayidx = getelementptr i32, ptr %P, i64 %indvar |
| store atomic i32 1, ptr %arrayidx unordered, align 4 |
| %indvar.next = add i64 %indvar, 1 |
| %exitcond = icmp eq i64 %indvar.next, 10000 |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: ; preds = %for.body |
| ret void |
| } |
| |
| ; Make sure that atomic memcpy or memmove don't get recognized by mistake |
| ; when looping with positive stride |
| define void @test_no_memcpy_memmove1(ptr %Src, i64 %Size) { |
| ; CHECK-LABEL: @test_no_memcpy_memmove1( |
| ; CHECK-NEXT: bb.nph: |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[INDVAR:%.*]] = phi i64 [ 0, [[BB_NPH:%.*]] ], [ [[INDVAR_NEXT:%.*]], [[FOR_BODY]] ] |
| ; CHECK-NEXT: [[STEP:%.*]] = add nuw nsw i64 [[INDVAR]], 1 |
| ; CHECK-NEXT: [[SRCI:%.*]] = getelementptr i8, ptr [[SRC:%.*]], i64 [[STEP]] |
| ; CHECK-NEXT: [[DESTI:%.*]] = getelementptr i8, ptr [[SRC]], i64 [[INDVAR]] |
| ; CHECK-NEXT: [[V:%.*]] = load i8, ptr [[SRCI]], align 1 |
| ; CHECK-NEXT: store atomic i8 [[V]], ptr [[DESTI]] unordered, align 1 |
| ; CHECK-NEXT: [[INDVAR_NEXT]] = add i64 [[INDVAR]], 1 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVAR_NEXT]], [[SIZE:%.*]] |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_END:%.*]], label [[FOR_BODY]] |
| ; CHECK: for.end: |
| ; CHECK-NEXT: ret void |
| ; |
| bb.nph: |
| br label %for.body |
| |
| for.body: ; preds = %bb.nph, %for.body |
| %indvar = phi i64 [ 0, %bb.nph ], [ %indvar.next, %for.body ] |
| %Step = add nuw nsw i64 %indvar, 1 |
| %SrcI = getelementptr i8, ptr %Src, i64 %Step |
| %DestI = getelementptr i8, ptr %Src, i64 %indvar |
| %V = load i8, ptr %SrcI, align 1 |
| store atomic i8 %V, ptr %DestI unordered, align 1 |
| %indvar.next = add i64 %indvar, 1 |
| %exitcond = icmp eq i64 %indvar.next, %Size |
| br i1 %exitcond, label %for.end, label %for.body |
| |
| for.end: ; preds = %for.body, %entry |
| ret void |
| } |
| |
| ; Make sure that atomic memcpy or memmove don't get recognized by mistake |
| ; when looping with negative stride |
| define void @test_no_memcpy_memmove2(ptr %Src, i64 %Size) { |
| ; CHECK-LABEL: @test_no_memcpy_memmove2( |
| ; CHECK-NEXT: bb.nph: |
| ; CHECK-NEXT: [[CMP1:%.*]] = icmp sgt i64 [[SIZE:%.*]], 0 |
| ; CHECK-NEXT: br i1 [[CMP1]], label [[FOR_BODY_PREHEADER:%.*]], label [[FOR_END:%.*]] |
| ; CHECK: for.body.preheader: |
| ; CHECK-NEXT: br label [[FOR_BODY:%.*]] |
| ; CHECK: for.body: |
| ; CHECK-NEXT: [[INDVAR:%.*]] = phi i64 [ [[STEP:%.*]], [[FOR_BODY]] ], [ [[SIZE]], [[FOR_BODY_PREHEADER]] ] |
| ; CHECK-NEXT: [[STEP]] = add nsw i64 [[INDVAR]], -1 |
| ; CHECK-NEXT: [[SRCI:%.*]] = getelementptr inbounds i8, ptr [[SRC:%.*]], i64 [[STEP]] |
| ; CHECK-NEXT: [[V:%.*]] = load i8, ptr [[SRCI]], align 1 |
| ; CHECK-NEXT: [[DESTI:%.*]] = getelementptr inbounds i8, ptr [[SRC]], i64 [[INDVAR]] |
| ; CHECK-NEXT: store atomic i8 [[V]], ptr [[DESTI]] unordered, align 1 |
| ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp sgt i64 [[INDVAR]], 1 |
| ; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY]], label [[FOR_END_LOOPEXIT:%.*]] |
| ; CHECK: for.end.loopexit: |
| ; CHECK-NEXT: br label [[FOR_END]] |
| ; CHECK: for.end: |
| ; CHECK-NEXT: ret void |
| ; |
| bb.nph: |
| %cmp1 = icmp sgt i64 %Size, 0 |
| br i1 %cmp1, label %for.body, label %for.end |
| |
| for.body: ; preds = %bb.nph, %.for.body |
| %indvar = phi i64 [ %Step, %for.body ], [ %Size, %bb.nph ] |
| %Step = add nsw i64 %indvar, -1 |
| %SrcI = getelementptr inbounds i8, ptr %Src, i64 %Step |
| %V = load i8, ptr %SrcI, align 1 |
| %DestI = getelementptr inbounds i8, ptr %Src, i64 %indvar |
| store atomic i8 %V, ptr %DestI unordered, align 1 |
| %exitcond = icmp sgt i64 %indvar, 1 |
| br i1 %exitcond, label %for.body, label %for.end |
| |
| for.end: ; preds = %for.body, %entry |
| ret void |
| } |
