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https://github.com/c64scene-ar/llvm-6502.git
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720a2ed6d9
one store dead. This is especially noticeable in SingleSource/Benchmarks/Shootout/objinst. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118875 91177308-0d34-0410-b5e6-96231b3b80d8
41 lines
833 B
LLVM
41 lines
833 B
LLVM
; RUN: opt < %s -basicaa -dse -S | FileCheck %s
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target datalayout = "e-p:64:64:64"
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; CHECK: @test
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; CHECK-NEXT: bitcast
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; CHECK-NEXT: @free
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; CHECK-NEXT: ret void
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define void @test(i32* %Q, i32* %P) {
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%DEAD = load i32* %Q ; <i32> [#uses=1]
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store i32 %DEAD, i32* %P
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free i32* %P
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ret void
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}
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; CHECK: @test2
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; CHECK-NEXT: bitcast
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; CHECK-NEXT: @free
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; CHECK-NEXT: ret void
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define void @test2({i32, i32}* %P) {
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%Q = getelementptr {i32, i32} *%P, i32 0, i32 1
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store i32 4, i32* %Q
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free {i32,i32}* %P
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ret void
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}
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; CHECK: @test4
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; CHECK-NOT: store
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; CHECK: ret void
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define void @test4() {
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%m = call i8* @malloc(i64 24)
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store i8 0, i8* %m
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%m1 = getelementptr i8* %m, i64 1
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store i8 1, i8* %m1
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call void @free(i8* %m)
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ret void
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}
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declare void @free(i8*)
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declare i8* @malloc(i64)
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