| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -mcpu=haswell | FileCheck %s -check-prefix=NOAA |
| ; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -mcpu=haswell -combiner-global-alias-analysis=1 | FileCheck %s -check-prefix=AA |
| |
| declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture) |
| declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture writeonly, i8* nocapture readonly, i64, i1) |
| declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture) |
| |
| %struct.S = type { [16 x i8] } |
| |
| define dso_local void @_Z4SwapP1SS0_(%struct.S* nocapture %a, %struct.S* nocapture %b) local_unnamed_addr { |
| ; NOAA-LABEL: _Z4SwapP1SS0_: |
| ; NOAA: # %bb.0: # %entry |
| ; NOAA-NEXT: vmovups (%rdi), %xmm0 |
| ; NOAA-NEXT: vmovaps %xmm0, -{{[0-9]+}}(%rsp) |
| ; NOAA-NEXT: vmovups (%rsi), %xmm0 |
| ; NOAA-NEXT: vmovups %xmm0, (%rdi) |
| ; NOAA-NEXT: vmovaps -{{[0-9]+}}(%rsp), %xmm0 |
| ; NOAA-NEXT: vmovups %xmm0, (%rsi) |
| ; NOAA-NEXT: retq |
| ; |
| ; AA-LABEL: _Z4SwapP1SS0_: |
| ; AA: # %bb.0: # %entry |
| ; AA-NEXT: vmovups (%rdi), %xmm0 |
| ; AA-NEXT: vmovups (%rsi), %xmm1 |
| ; AA-NEXT: vmovups %xmm1, (%rdi) |
| ; AA-NEXT: vmovups %xmm0, (%rsi) |
| ; AA-NEXT: retq |
| entry: |
| %tmp.sroa.0 = alloca [16 x i8], align 1 |
| %tmp.sroa.0.0..sroa_idx6 = getelementptr inbounds [16 x i8], [16 x i8]* %tmp.sroa.0, i64 0, i64 0 |
| call void @llvm.lifetime.start.p0i8(i64 16, i8* nonnull %tmp.sroa.0.0..sroa_idx6) |
| %tmp.sroa.0.0..sroa_idx1 = getelementptr inbounds %struct.S, %struct.S* %a, i64 0, i32 0, i64 0 |
| call void @llvm.memcpy.p0i8.p0i8.i64(i8* nonnull align 1 %tmp.sroa.0.0..sroa_idx6, i8* align 1 %tmp.sroa.0.0..sroa_idx1, i64 16, i1 false) |
| %0 = getelementptr inbounds %struct.S, %struct.S* %b, i64 0, i32 0, i64 0 |
| tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 1 %tmp.sroa.0.0..sroa_idx1, i8* align 1 %0, i64 16, i1 false), !tbaa.struct !2 |
| call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 1 %0, i8* nonnull align 1 %tmp.sroa.0.0..sroa_idx6, i64 16, i1 false) |
| call void @llvm.lifetime.end.p0i8(i64 16, i8* nonnull %tmp.sroa.0.0..sroa_idx6) |
| ret void |
| } |
| |
| define dso_local void @onealloc_noreadback(i8* nocapture %a, i8* nocapture %b) local_unnamed_addr { |
| ; NOAA-LABEL: onealloc_noreadback: |
| ; NOAA: # %bb.0: # %entry |
| ; NOAA-NEXT: retq |
| ; |
| ; AA-LABEL: onealloc_noreadback: |
| ; AA: # %bb.0: # %entry |
| ; AA-NEXT: retq |
| entry: |
| %alloc = alloca [16 x i8], i8 2, align 1 |
| %part1 = getelementptr inbounds [16 x i8], [16 x i8]* %alloc, i64 0, i64 0 |
| %part2 = getelementptr inbounds [16 x i8], [16 x i8]* %alloc, i64 1, i64 0 |
| call void @llvm.lifetime.start.p0i8(i64 16, i8* nonnull %part1) |
| call void @llvm.lifetime.start.p0i8(i64 16, i8* nonnull %part2) |
| call void @llvm.memcpy.p0i8.p0i8.i64(i8* nonnull align 1 %part1, i8* align 1 %a, i64 16, i1 false) |
| tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* nonnull align 1 %part2, i8* align 1 %b, i64 16, i1 false) |
| call void @llvm.lifetime.end.p0i8(i64 16, i8* nonnull %part1) |
| call void @llvm.lifetime.end.p0i8(i64 16, i8* nonnull %part2) |
| ret void |
| } |
| |
| |
| define dso_local void @twoallocs_trivial(i8* nocapture %a, i8* nocapture %b) local_unnamed_addr { |
| ; NOAA-LABEL: twoallocs_trivial: |
| ; NOAA: # %bb.0: # %entry |
| ; NOAA-NEXT: retq |
| ; |
| ; AA-LABEL: twoallocs_trivial: |
| ; AA: # %bb.0: # %entry |
| ; AA-NEXT: retq |
| entry: |
| %alloc1 = alloca [16 x i8], align 1 |
| %alloc2 = alloca [16 x i8], align 1 |
| %part1 = getelementptr inbounds [16 x i8], [16 x i8]* %alloc1, i64 0, i64 0 |
| %part2 = getelementptr inbounds [16 x i8], [16 x i8]* %alloc2, i64 0, i64 0 |
| call void @llvm.lifetime.start.p0i8(i64 16, i8* nonnull %part1) |
| call void @llvm.lifetime.start.p0i8(i64 16, i8* nonnull %part2) |
| call void @llvm.memcpy.p0i8.p0i8.i64(i8* nonnull align 1 %part1, i8* align 1 %a, i64 16, i1 false) |
| call void @llvm.memcpy.p0i8.p0i8.i64(i8* nonnull align 1 %part2, i8* align 1 %b, i64 16, i1 false) |
| call void @llvm.lifetime.end.p0i8(i64 16, i8* nonnull %part1) |
| call void @llvm.lifetime.end.p0i8(i64 16, i8* nonnull %part2) |
| ret void |
| } |
| |
| define dso_local void @twoallocs(i8* nocapture %a, i8* nocapture %b) local_unnamed_addr { |
| ; NOAA-LABEL: twoallocs: |
| ; NOAA: # %bb.0: # %entry |
| ; NOAA-NEXT: vmovups (%rdi), %xmm0 |
| ; NOAA-NEXT: vmovaps %xmm0, -{{[0-9]+}}(%rsp) |
| ; NOAA-NEXT: vmovups %xmm0, (%rsi) |
| ; NOAA-NEXT: retq |
| ; |
| ; AA-LABEL: twoallocs: |
| ; AA: # %bb.0: # %entry |
| ; AA-NEXT: vmovups (%rdi), %xmm0 |
| ; AA-NEXT: vmovaps %xmm0, -{{[0-9]+}}(%rsp) |
| ; AA-NEXT: vmovups %xmm0, (%rsi) |
| ; AA-NEXT: retq |
| entry: |
| %alloc1 = alloca [16 x i8], align 1 |
| %alloc2 = alloca [16 x i8], align 1 |
| %part1 = getelementptr inbounds [16 x i8], [16 x i8]* %alloc1, i64 0, i64 0 |
| %part2 = getelementptr inbounds [16 x i8], [16 x i8]* %alloc2, i64 0, i64 0 |
| %part2_alias = getelementptr inbounds [16 x i8], [16 x i8]* %alloc2, i64 0, i64 0 |
| call void @llvm.lifetime.start.p0i8(i64 16, i8* nonnull %part1) |
| call void @llvm.lifetime.start.p0i8(i64 16, i8* nonnull %part2) |
| call void @llvm.memcpy.p0i8.p0i8.i64(i8* nonnull align 1 %part2, i8* align 1 %a, i64 16, i1 false) |
| call void @llvm.lifetime.end.p0i8(i64 16, i8* nonnull %part1) |
| tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* nonnull align 1 %b, i8* align 1 %part2_alias, i64 16, i1 false) |
| call void @llvm.lifetime.end.p0i8(i64 16, i8* nonnull %part2) |
| ret void |
| } |
| |
| define dso_local void @onealloc_readback_1(i8* nocapture %a, i8* nocapture %b) local_unnamed_addr { |
| ; NOAA-LABEL: onealloc_readback_1: |
| ; NOAA: # %bb.0: # %entry |
| ; NOAA-NEXT: vmovups (%rdi), %xmm0 |
| ; NOAA-NEXT: vmovaps %xmm0, -{{[0-9]+}}(%rsp) |
| ; NOAA-NEXT: vmovups (%rsi), %xmm0 |
| ; NOAA-NEXT: vmovaps %xmm0, -{{[0-9]+}}(%rsp) |
| ; NOAA-NEXT: vmovups %xmm0, (%rdi) |
| ; NOAA-NEXT: retq |
| ; |
| ; AA-LABEL: onealloc_readback_1: |
| ; AA: # %bb.0: # %entry |
| ; AA-NEXT: vmovups (%rsi), %xmm0 |
| ; AA-NEXT: vmovaps %xmm0, -{{[0-9]+}}(%rsp) |
| ; AA-NEXT: vmovups %xmm0, (%rdi) |
| ; AA-NEXT: retq |
| entry: |
| %alloc = alloca [16 x i8], i8 2, align 1 |
| %part2 = getelementptr inbounds [16 x i8], [16 x i8]* %alloc, i64 0, i64 0 |
| %part1 = getelementptr inbounds [16 x i8], [16 x i8]* %alloc, i64 1, i64 0 |
| call void @llvm.lifetime.start.p0i8(i64 16, i8* nonnull %part1) |
| call void @llvm.lifetime.start.p0i8(i64 16, i8* nonnull %part2) |
| call void @llvm.memcpy.p0i8.p0i8.i64(i8* nonnull align 1 %part1, i8* align 1 %a, i64 16, i1 false) |
| call void @llvm.memcpy.p0i8.p0i8.i64(i8* nonnull align 1 %part2, i8* align 1 %b, i64 16, i1 false) |
| call void @llvm.lifetime.end.p0i8(i64 16, i8* nonnull %part1) |
| tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* nonnull align 1 %a, i8* align 1 %part2, i64 16, i1 false) |
| call void @llvm.lifetime.end.p0i8(i64 16, i8* nonnull %part2) |
| ret void |
| } |
| |
| define dso_local void @onealloc_readback_2(i8* nocapture %a, i8* nocapture %b) local_unnamed_addr { |
| ; NOAA-LABEL: onealloc_readback_2: |
| ; NOAA: # %bb.0: # %entry |
| ; NOAA-NEXT: vmovups (%rdi), %xmm0 |
| ; NOAA-NEXT: vmovaps %xmm0, -{{[0-9]+}}(%rsp) |
| ; NOAA-NEXT: vmovups (%rsi), %xmm0 |
| ; NOAA-NEXT: vmovaps %xmm0, -{{[0-9]+}}(%rsp) |
| ; NOAA-NEXT: vmovups %xmm0, (%rdi) |
| ; NOAA-NEXT: retq |
| ; |
| ; AA-LABEL: onealloc_readback_2: |
| ; AA: # %bb.0: # %entry |
| ; AA-NEXT: vmovups (%rsi), %xmm0 |
| ; AA-NEXT: vmovaps %xmm0, -{{[0-9]+}}(%rsp) |
| ; AA-NEXT: vmovups %xmm0, (%rdi) |
| ; AA-NEXT: retq |
| entry: |
| %alloc = alloca [16 x i8], i8 2, align 1 |
| %part1 = getelementptr inbounds [16 x i8], [16 x i8]* %alloc, i64 0, i64 0 |
| %part2 = getelementptr inbounds [16 x i8], [16 x i8]* %alloc, i64 1, i64 0 |
| call void @llvm.lifetime.start.p0i8(i64 16, i8* nonnull %part1) |
| call void @llvm.lifetime.start.p0i8(i64 16, i8* nonnull %part2) |
| call void @llvm.memcpy.p0i8.p0i8.i64(i8* nonnull align 1 %part1, i8* align 1 %a, i64 16, i1 false) |
| call void @llvm.memcpy.p0i8.p0i8.i64(i8* nonnull align 1 %part2, i8* align 1 %b, i64 16, i1 false) |
| call void @llvm.lifetime.end.p0i8(i64 16, i8* nonnull %part1) |
| tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* nonnull align 1 %a, i8* align 1 %part2, i64 16, i1 false) |
| call void @llvm.lifetime.end.p0i8(i64 16, i8* nonnull %part2) |
| ret void |
| } |
| |
| |
| !llvm.module.flags = !{!0} |
| !llvm.ident = !{!1} |
| |
| !0 = !{i32 1, !"wchar_size", i32 4} |
| !1 = !{!"clang version 9.0.0 (trunk 352631) (llvm/trunk 352632)"} |
| !2 = !{i64 0, i64 16, !3} |
| !3 = !{!4, !4, i64 0} |
| !4 = !{!"omnipotent char", !5, i64 0} |
| !5 = !{!"Simple C++ TBAA"} |