forked from OSchip/llvm-project
45 lines
1.1 KiB
LLVM
45 lines
1.1 KiB
LLVM
; RUN: opt -reassociate -disable-output %s
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; rdar://7507855
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define fastcc i32 @test1() nounwind {
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entry:
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%cond = select i1 undef, i32 1, i32 -1 ; <i32> [#uses=2]
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br label %for.cond
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for.cond: ; preds = %for.body, %entry
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%sub889 = sub i32 undef, undef ; <i32> [#uses=1]
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%sub891 = sub i32 %sub889, %cond ; <i32> [#uses=0]
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%add896 = sub i32 0, %cond ; <i32> [#uses=0]
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ret i32 undef
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}
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; PR5981
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define i32 @test2() nounwind ssp {
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entry:
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%0 = load i32* undef, align 4
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%1 = mul nsw i32 undef, %0
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%2 = mul nsw i32 undef, %0
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%3 = add nsw i32 undef, %1
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%4 = add nsw i32 %3, %2
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%5 = add nsw i32 %4, 4
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%6 = shl i32 %0, 3
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%7 = add nsw i32 %5, %6
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br label %bb4.i9
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bb4.i9:
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%8 = add nsw i32 undef, %1
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ret i32 0
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}
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define i32 @test3(i32 %Arg, i32 %x1, i32 %x2, i32 %x3) {
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%A = mul i32 %x1, %Arg
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%B = mul i32 %Arg, %x2 ;; Part of add operation being factored, also used by C
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%C = mul i32 %x3, %B
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%D = add i32 %A, %B
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%E = add i32 %D, %C
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ret i32 %E
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}
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