c23b4fbdbb
Now that #149310 has restricted lifetime intrinsics to only work on allocas, we can also drop the explicit size argument. Instead, the size is implied by the alloca. This removes the ability to only mark a prefix of an alloca alive/dead. We never used that capability, so we should remove the need to handle that possibility everywhere (though many key places, including stack coloring, did not actually respect this).
108 lines
5.6 KiB
LLVM
108 lines
5.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -aa-pipeline=basic-aa -passes=always-inline -enable-noalias-to-md-conversion -S < %s | FileCheck %s
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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declare void @llvm.memcpy.p0.p0.i64(ptr nocapture, ptr nocapture readonly, i64, i1) #0
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declare void @hey() #0
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define void @hello(ptr noalias nocapture %a, ptr noalias nocapture readonly %c, ptr nocapture %b) #1 {
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; CHECK-LABEL: @hello(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[L:%.*]] = alloca i8, i32 512, align 1
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; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 16 [[A:%.*]], ptr align 16 [[B:%.*]], i64 16, i1 false)
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; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 16 [[B]], ptr align 16 [[C:%.*]], i64 16, i1 false)
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; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 16 [[A]], ptr align 16 [[C]], i64 16, i1 false)
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; CHECK-NEXT: call void @hey()
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; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 16 [[L]], ptr align 16 [[C]], i64 16, i1 false)
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; CHECK-NEXT: ret void
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;
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entry:
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%l = alloca i8, i32 512, align 1
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call void @llvm.memcpy.p0.p0.i64(ptr align 16 %a, ptr align 16 %b, i64 16, i1 0)
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call void @llvm.memcpy.p0.p0.i64(ptr align 16 %b, ptr align 16 %c, i64 16, i1 0)
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call void @llvm.memcpy.p0.p0.i64(ptr align 16 %a, ptr align 16 %c, i64 16, i1 0)
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call void @hey()
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call void @llvm.memcpy.p0.p0.i64(ptr align 16 %l, ptr align 16 %c, i64 16, i1 0)
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ret void
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}
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define void @foo(ptr nocapture %a, ptr nocapture readonly %c, ptr nocapture %b) #2 {
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; CHECK-LABEL: @foo(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[L_I:%.*]] = alloca i8, i32 512, align 1
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; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata [[META0:![0-9]+]])
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; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata [[META3:![0-9]+]])
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; CHECK-NEXT: call void @llvm.lifetime.start.p0(ptr [[L_I]])
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; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 16 [[A:%.*]], ptr align 16 [[B:%.*]], i64 16, i1 false), !noalias [[META3]]
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; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 16 [[B]], ptr readonly align 16 [[C:%.*]], i64 16, i1 false), !noalias [[META0]]
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; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 16 [[A]], ptr readonly align 16 [[C]], i64 16, i1 false), !alias.scope [[META5:![0-9]+]]
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; CHECK-NEXT: call void @hey(), !noalias [[META5]]
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; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 16 [[L_I]], ptr readonly align 16 [[C]], i64 16, i1 false), !noalias [[META0]]
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; CHECK-NEXT: call void @llvm.lifetime.end.p0(ptr [[L_I]])
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; CHECK-NEXT: ret void
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;
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entry:
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tail call void @hello(ptr %a, ptr %c, ptr %b)
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ret void
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}
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define void @hello_cs(ptr nocapture %a, ptr nocapture readonly %c, ptr nocapture %b) #1 {
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; CHECK-LABEL: @hello_cs(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[L:%.*]] = alloca i8, i32 512, align 1
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; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 16 [[A:%.*]], ptr align 16 [[B:%.*]], i64 16, i1 false)
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; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 16 [[B]], ptr align 16 [[C:%.*]], i64 16, i1 false)
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; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 16 [[A]], ptr align 16 [[C]], i64 16, i1 false)
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; CHECK-NEXT: call void @hey()
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; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 16 [[L]], ptr align 16 [[C]], i64 16, i1 false)
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; CHECK-NEXT: ret void
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;
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entry:
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%l = alloca i8, i32 512, align 1
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call void @llvm.memcpy.p0.p0.i64(ptr align 16 %a, ptr align 16 %b, i64 16, i1 0)
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call void @llvm.memcpy.p0.p0.i64(ptr align 16 %b, ptr align 16 %c, i64 16, i1 0)
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call void @llvm.memcpy.p0.p0.i64(ptr align 16 %a, ptr align 16 %c, i64 16, i1 0)
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call void @hey()
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call void @llvm.memcpy.p0.p0.i64(ptr align 16 %l, ptr align 16 %c, i64 16, i1 0)
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ret void
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}
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define void @foo_cs(ptr nocapture %a, ptr nocapture readonly %c, ptr nocapture %b) #2 {
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; CHECK-LABEL: @foo_cs(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[L_I:%.*]] = alloca i8, i32 512, align 1
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; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata [[META6:![0-9]+]])
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; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata [[META9:![0-9]+]])
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; CHECK-NEXT: call void @llvm.lifetime.start.p0(ptr [[L_I]])
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; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 16 [[A:%.*]], ptr align 16 [[B:%.*]], i64 16, i1 false), !noalias [[META9]]
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; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 16 [[B]], ptr readonly align 16 [[C:%.*]], i64 16, i1 false), !noalias [[META6]]
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; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 16 [[A]], ptr readonly align 16 [[C]], i64 16, i1 false), !alias.scope [[META11:![0-9]+]]
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; CHECK-NEXT: call void @hey(), !noalias [[META11]]
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; CHECK-NEXT: call void @llvm.memcpy.p0.p0.i64(ptr align 16 [[L_I]], ptr readonly align 16 [[C]], i64 16, i1 false), !noalias [[META6]]
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; CHECK-NEXT: call void @llvm.lifetime.end.p0(ptr [[L_I]])
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; CHECK-NEXT: ret void
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;
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entry:
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tail call void @hello_cs(ptr noalias %a, ptr noalias %c, ptr %b)
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ret void
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}
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attributes #0 = { nounwind argmemonly willreturn }
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attributes #1 = { nounwind alwaysinline }
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attributes #2 = { nounwind uwtable }
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; CHECK: !0 = !{!1}
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; CHECK: !1 = distinct !{!1, !2, !"hello: %a"}
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; CHECK: !2 = distinct !{!2, !"hello"}
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; CHECK: !3 = !{!4}
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; CHECK: !4 = distinct !{!4, !2, !"hello: %c"}
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; CHECK: !5 = !{!1, !4}
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; CHECK: !6 = !{!7}
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; CHECK: !7 = distinct !{!7, !8, !"hello_cs: %a"}
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; CHECK: !8 = distinct !{!8, !"hello_cs"}
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; CHECK: !9 = !{!10}
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; CHECK: !10 = distinct !{!10, !8, !"hello_cs: %c"}
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; CHECK: !11 = !{!7, !10}
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