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https://github.com/c64scene-ar/llvm-6502.git
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e9e973018a
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120325 91177308-0d34-0410-b5e6-96231b3b80d8
37 lines
949 B
LLVM
37 lines
949 B
LLVM
; RUN: opt < %s -basicaa -dse -S | FileCheck %s
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target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
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define void @test1(i32* %Q, i32* %P) {
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%DEAD = load i32* %Q
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store i32 %DEAD, i32* %P
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store i32 0, i32* %P
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ret void
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; CHECK: @test1
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; CHECK-NEXT: store i32 0, i32* %P
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; CHECK-NEXT: ret void
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}
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; PR8576 - Should delete store of 10 even though p/q are may aliases.
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define void @test2(i32 *%p, i32 *%q) {
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store i32 10, i32* %p, align 4
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store i32 20, i32* %q, align 4
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store i32 30, i32* %p, align 4
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ret void
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; CHECK: @test2
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; CHECK-NEXT: store i32 20
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}
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; PR8677
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@g = global i32 1
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define i32 @test3(i32* %g_addr) nounwind {
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; CHECK: @test3
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; CHEcK: load i32* %g_addr
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%g_value = load i32* %g_addr, align 4
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store i32 -1, i32* @g, align 4
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store i32 %g_value, i32* %g_addr, align 4
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%tmp3 = load i32* @g, align 4
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ret i32 %tmp3
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}
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