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20 lines
473 B
LLVM
20 lines
473 B
LLVM
; RUN: opt < %s -basicaa -gvn -instcombine -S | FileCheck %s
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; PR4189
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@G = external constant [4 x i32]
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define i32 @test(i8* %p, i32 %i) nounwind {
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entry:
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%P = getelementptr [4 x i32], [4 x i32]* @G, i32 0, i32 %i
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%A = load i32, i32* %P
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store i8 4, i8* %p
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%B = load i32, i32* %P
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%C = sub i32 %A, %B
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ret i32 %C
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}
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; CHECK: define i32 @test(i8* %p, i32 %i) #0 {
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; CHECK-NEXT: entry:
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; CHECK-NEXT: store i8 4, i8* %p, align 1
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; CHECK-NEXT: ret i32 0
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; CHECK-NEXT: }
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