51 lines · plain
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt -passes=memcpyopt -S < %s -verify-memoryssa | FileCheck %s3 4target 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"5target triple = "x86_64-apple-macosx10.7.0"6 7@x = global i32 08 9declare void @otherf(ptr)10 11declare void @llvm.memset.p0.i64(ptr nocapture, i8, i64, i1) nounwind12 13; memcpyopt should not touch atomic ops14define void @test1() nounwind uwtable ssp {15; CHECK-LABEL: @test1(16; CHECK-NEXT: [[X:%.*]] = alloca [101 x i32], align 1617; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr align 16 [[X]], i8 0, i64 400, i1 false)18; CHECK-NEXT: [[GEP1:%.*]] = getelementptr inbounds [101 x i32], ptr [[X]], i32 0, i32 10019; CHECK-NEXT: store atomic i32 0, ptr [[GEP1]] unordered, align 420; CHECK-NEXT: call void @otherf(ptr [[X]])21; CHECK-NEXT: ret void22;23 %x = alloca [101 x i32], align 1624 call void @llvm.memset.p0.i64(ptr align 16 %x, i8 0, i64 400, i1 false)25 %gep1 = getelementptr inbounds [101 x i32], ptr %x, i32 0, i32 10026 store atomic i32 0, ptr %gep1 unordered, align 427 call void @otherf(ptr %x)28 ret void29}30 31; memcpyopt across unordered store32define void @test2() nounwind uwtable ssp {33; CHECK-LABEL: @test2(34; CHECK-NEXT: [[OLD:%.*]] = alloca i32, align 435; CHECK-NEXT: [[NEW:%.*]] = alloca i32, align 436; CHECK-NEXT: call void @otherf(ptr captures(none) [[NEW]])37; CHECK-NEXT: store atomic i32 0, ptr @x unordered, align 438; CHECK-NEXT: call void @otherf(ptr captures(none) [[NEW]])39; CHECK-NEXT: ret void40;41 %old = alloca i3242 %new = alloca i3243 call void @otherf(ptr nocapture %old)44 store atomic i32 0, ptr @x unordered, align 445 %v = load i32, ptr %old46 store i32 %v, ptr %new47 call void @otherf(ptr nocapture %new)48 ret void49}50 51