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