ab1f6ce482
Split out from https://github.com/llvm/llvm-project/pull/150248: Specify that the argument of lifetime.start/lifetime.end is ignored and will be removed in the future. Remove lifetime size handling from SDAG. The size was previously discarded during isel, so was always ignored for stack coloring anyway. Where necessary, obtain the size of the full frame index.
166 lines
6.6 KiB
LLVM
166 lines
6.6 KiB
LLVM
; 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.p0(i64, ptr nocapture)
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declare void @llvm.memcpy.p0.p0.i64(ptr nocapture writeonly, ptr nocapture readonly, i64, i1)
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declare void @llvm.lifetime.end.p0(i64, ptr nocapture)
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%struct.S = type { [16 x i8] }
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define dso_local void @_Z4SwapP1SS0_(ptr nocapture %a, ptr 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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call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %tmp.sroa.0)
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call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 1 %tmp.sroa.0, ptr align 1 %a, i64 16, i1 false)
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tail call void @llvm.memcpy.p0.p0.i64(ptr align 1 %a, ptr align 1 %b, i64 16, i1 false), !tbaa.struct !2
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call void @llvm.memcpy.p0.p0.i64(ptr align 1 %b, ptr nonnull align 1 %tmp.sroa.0, i64 16, i1 false)
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call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %tmp.sroa.0)
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ret void
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}
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define dso_local void @onealloc_noreadback(ptr nocapture %a, ptr 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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%part2 = getelementptr inbounds [16 x i8], ptr %alloc, i64 1, i64 0
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call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %alloc)
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call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 1 %alloc, ptr align 1 %a, i64 16, i1 false)
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tail call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 1 %part2, ptr align 1 %b, i64 16, i1 false)
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call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %alloc)
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ret void
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}
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define dso_local void @twoallocs_trivial(ptr nocapture %a, ptr 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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call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %alloc1)
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call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %alloc2)
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call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 1 %alloc1, ptr align 1 %a, i64 16, i1 false)
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call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 1 %alloc2, ptr align 1 %b, i64 16, i1 false)
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call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %alloc1)
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call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %alloc2)
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ret void
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}
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define dso_local void @twoallocs(ptr nocapture %a, ptr 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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call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %alloc1)
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call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %alloc2)
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call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 1 %alloc2, ptr align 1 %a, i64 16, i1 false)
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call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %alloc1)
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tail call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 1 %b, ptr align 1 %alloc2, i64 16, i1 false)
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call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %alloc2)
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ret void
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}
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define dso_local void @onealloc_readback_1(ptr nocapture %a, ptr 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: 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], ptr %alloc, i64 1, i64 0
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call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %alloc)
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call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 1 %part1, ptr align 1 %a, i64 16, i1 false)
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call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 1 %alloc, ptr align 1 %b, i64 16, i1 false)
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tail call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 1 %a, ptr align 1 %alloc, i64 16, i1 false)
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call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %alloc)
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ret void
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}
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define dso_local void @onealloc_readback_2(ptr nocapture %a, ptr 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: 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], ptr %alloc, i64 1, i64 0
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call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %alloc)
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call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 1 %alloc, ptr align 1 %a, i64 16, i1 false)
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call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 1 %part2, ptr align 1 %b, i64 16, i1 false)
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tail call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 1 %a, ptr align 1 %part2, i64 16, i1 false)
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call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %alloc)
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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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