| ; RUN: opt -S < %s | FileCheck %s |
| |
| ; Test to ensure that calls to the memcpy/memmove/memset intrinsics are auto-upgraded |
| ; to remove the alignment parameter in favour of align attributes on the pointer args. |
| |
| ; Make sure a non-zero alignment is propagated |
| define void @test(i8* %p1, i8* %p2, i8* %p3) { |
| ; CHECK-LABEL: @test |
| ; CHECK: call void @llvm.memset.p0i8.i64(i8* align 4 %p1, i8 55, i64 100, i1 false) |
| ; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 4 %p1, i8* align 4 %p2, i64 50, i1 false) |
| ; CHECK: call void @llvm.memmove.p0i8.p0i8.i64(i8* align 4 %p2, i8* align 4 %p3, i64 1000, i1 false) |
| call void @llvm.memset.p0i8.i64(i8* %p1, i8 55, i64 100, i32 4, i1 false) |
| call void @llvm.memcpy.p0i8.p0i8.i64(i8* %p1, i8* %p2, i64 50, i32 4, i1 false) |
| call void @llvm.memmove.p0i8.p0i8.i64(i8* %p2, i8* %p3, i64 1000, i32 4, i1 false) |
| ret void |
| } |
| |
| ; Make sure that a zero alignment is handled properly |
| define void @test2(i8* %p1, i8* %p2, i8* %p3) { |
| ; CHECK-LABEL: @test |
| ; CHECK: call void @llvm.memset.p0i8.i64(i8* %p1, i8 55, i64 100, i1 false) |
| ; CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* %p1, i8* %p2, i64 50, i1 false) |
| ; CHECK: call void @llvm.memmove.p0i8.p0i8.i64(i8* %p2, i8* %p3, i64 1000, i1 false) |
| call void @llvm.memset.p0i8.i64(i8* %p1, i8 55, i64 100, i32 0, i1 false) |
| call void @llvm.memcpy.p0i8.p0i8.i64(i8* %p1, i8* %p2, i64 50, i32 0, i1 false) |
| call void @llvm.memmove.p0i8.p0i8.i64(i8* %p2, i8* %p3, i64 1000, i32 0, i1 false) |
| ret void |
| } |
| |
| ; CHECK: declare void @llvm.memset.p0i8.i64(i8* nocapture writeonly, i8, i64, i1 immarg) |
| ; CHECK: declare void @llvm.memcpy.p0i8.p0i8.i64(i8* noalias nocapture writeonly, i8* noalias nocapture readonly, i64, i1 immarg) |
| ; CHECK: declare void @llvm.memmove.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i1 immarg) |
| declare void @llvm.memset.p0i8.i64(i8* nocapture writeonly, i8, i64, i32, i1) |
| declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture writeonly , i8* nocapture readonly, i64, i32, i1) |
| declare void @llvm.memmove.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i32, i1) |
| |
