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47 lines
1.3 KiB
LLVM
47 lines
1.3 KiB
LLVM
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; RUN: opt < %s -basicaa -inline -instcombine -reassociate -dse -disable-output
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; PR12245
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@a = common global i32 0, align 4
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@d = common global i32 0, align 4
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define i32 @fn2() nounwind uwtable ssp {
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entry:
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%0 = load i32, i32* @a, align 4
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%dec = add nsw i32 %0, -1
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store i32 %dec, i32* @a, align 4
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%1 = load i32, i32* @d, align 4
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%sub = sub nsw i32 %dec, %1
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store i32 %sub, i32* @d, align 4
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%2 = load i32, i32* @a, align 4
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%dec1 = add nsw i32 %2, -1
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store i32 %dec1, i32* @a, align 4
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%3 = load i32, i32* @d, align 4
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%sub2 = sub nsw i32 %dec1, %3
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store i32 %sub2, i32* @d, align 4
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%4 = load i32, i32* @a, align 4
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%dec3 = add nsw i32 %4, -1
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store i32 %dec3, i32* @a, align 4
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%5 = load i32, i32* @d, align 4
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%sub4 = sub nsw i32 %dec3, %5
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store i32 %sub4, i32* @d, align 4
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%6 = load i32, i32* @a, align 4
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%dec5 = add nsw i32 %6, -1
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store i32 %dec5, i32* @a, align 4
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%7 = load i32, i32* @d, align 4
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%sub6 = sub nsw i32 %dec5, %7
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store i32 %sub6, i32* @d, align 4
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%8 = load i32, i32* @a, align 4
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%dec7 = add nsw i32 %8, -1
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store i32 %dec7, i32* @a, align 4
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%9 = load i32, i32* @d, align 4
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%sub8 = sub nsw i32 %dec7, %9
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store i32 %sub8, i32* @d, align 4
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ret i32 0
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}
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define i32 @fn1() nounwind uwtable ssp {
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entry:
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%call = call i32 @fn2()
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ret i32 %call
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}
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