| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -S -dse < %s | FileCheck %s |
| |
| declare void @llvm.memcpy.p0i8.p0i8.i8(i8* nocapture, i8* nocapture, i8, i1) nounwind |
| declare void @llvm.memmove.p0i8.p0i8.i8(i8* nocapture, i8* nocapture, i8, i1) nounwind |
| declare void @llvm.memset.p0i8.i8(i8* nocapture, i8, i8, i1) nounwind |
| |
| define void @test1() { |
| ; CHECK-LABEL: @test1( |
| ; CHECK-NEXT: ret void |
| ; |
| %A = alloca i8 |
| %B = alloca i8 |
| |
| store i8 0, i8* %A ;; Written to by memcpy |
| |
| call void @llvm.memcpy.p0i8.p0i8.i8(i8* %A, i8* %B, i8 -1, i1 false) |
| |
| ret void |
| } |
| |
| define void @test2() { |
| ; CHECK-LABEL: @test2( |
| ; CHECK-NEXT: ret void |
| ; |
| %A = alloca i8 |
| %B = alloca i8 |
| |
| store i8 0, i8* %A ;; Written to by memmove |
| |
| call void @llvm.memmove.p0i8.p0i8.i8(i8* %A, i8* %B, i8 -1, i1 false) |
| |
| ret void |
| } |
| |
| define void @test3() { |
| ; CHECK-LABEL: @test3( |
| ; CHECK-NEXT: ret void |
| ; |
| %A = alloca i8 |
| %B = alloca i8 |
| |
| store i8 0, i8* %A ;; Written to by memset |
| |
| call void @llvm.memset.p0i8.i8(i8* %A, i8 0, i8 -1, i1 false) |
| |
| ret void |
| } |
| |
| declare void @llvm.memcpy.element.unordered.atomic.p0i16.p0i16.i16(i16* nocapture, i16* nocapture, i16, i32) nounwind |
| declare void @llvm.memmove.element.unordered.atomic.p0i16.p0i16.i16(i16* nocapture, i16* nocapture, i16, i32) nounwind |
| declare void @llvm.memset.element.unordered.atomic.p0i16.i16(i16* nocapture, i8, i16, i32) nounwind |
| |
| |
| define void @test4() { |
| ; CHECK-LABEL: @test4( |
| ; CHECK-NEXT: ret void |
| ; |
| %A = alloca i16, i16 1024, align 2 |
| %B = alloca i16, i16 1024, align 2 |
| |
| store atomic i16 0, i16* %A unordered, align 2 ;; Written to by memcpy |
| store atomic i16 0, i16* %B unordered, align 2 ;; Read by memcpy |
| |
| call void @llvm.memcpy.element.unordered.atomic.p0i16.p0i16.i16(i16* align 2 %A, i16* align 2 %B, i16 1024, i32 2) |
| |
| ret void |
| } |
| |
| define void @test5() { |
| ; CHECK-LABEL: @test5( |
| ; CHECK-NEXT: ret void |
| ; |
| %A = alloca i16, i16 1024, align 2 |
| %B = alloca i16, i16 1024, align 2 |
| |
| store atomic i16 0, i16* %A unordered, align 2 ;; Written to by memmove |
| store atomic i16 0, i16* %B unordered, align 2 ;; Read by memmove |
| |
| call void @llvm.memmove.element.unordered.atomic.p0i16.p0i16.i16(i16* align 2 %A, i16* align 2 %B, i16 1024, i32 2) |
| |
| ret void |
| } |
| |
| define void @test6() { |
| ; CHECK-LABEL: @test6( |
| ; CHECK-NEXT: ret void |
| ; |
| %A = alloca i16, i16 1024, align 2 |
| %B = alloca i16, i16 1024, align 2 |
| |
| store atomic i16 0, i16* %A unordered, align 2 ;; Written to by memset |
| |
| call void @llvm.memset.element.unordered.atomic.p0i16.i16(i16* align 2 %A, i8 0, i16 1024, i32 2) |
| |
| ret void |
| } |