forked from OSchip/llvm-project
29 lines
802 B
LLVM
29 lines
802 B
LLVM
; RUN: opt < %s -instcombine -disable-output
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; PR3144
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define fastcc i32 @func(i32 %length) nounwind {
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entry:
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%0 = icmp ne i32 %length, -1 ; <i1> [#uses=1]
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%iftmp.13.0 = select i1 %0, i128 0, i128 200000000 ; <i128> [#uses=2]
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%1 = sdiv i128 %iftmp.13.0, 10 ; <i128> [#uses=1]
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br label %bb5
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bb5: ; preds = %bb8, %entry
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%v.0 = phi i128 [ 0, %entry ], [ %6, %bb8 ] ; <i128> [#uses=2]
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%2 = icmp sgt i128 %v.0, %1 ; <i1> [#uses=1]
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br i1 %2, label %overflow, label %bb7
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bb7: ; preds = %bb5
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%3 = mul i128 %v.0, 10 ; <i128> [#uses=2]
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%4 = sub i128 %iftmp.13.0, 0 ; <i128> [#uses=1]
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%5 = icmp slt i128 %4, %3 ; <i1> [#uses=1]
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br i1 %5, label %overflow, label %bb8
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bb8: ; preds = %bb7
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%6 = add i128 0, %3 ; <i128> [#uses=1]
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br label %bb5
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overflow: ; preds = %bb7, %bb5
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ret i32 1
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}
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