21 lines
405 B
LLVM
21 lines
405 B
LLVM
; RUN: llc < %s -march=x86-64 | grep testb
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; Make sure dagcombine doesn't eliminate the comparison due
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; to an off-by-one bug with computeKnownBits information.
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declare void @qux()
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define void @foo(i32 %a) {
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%t0 = lshr i32 %a, 23
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br label %next
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next:
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%t1 = and i32 %t0, 256
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%t2 = icmp eq i32 %t1, 0
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br i1 %t2, label %true, label %false
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true:
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call void @qux()
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ret void
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false:
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ret void
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}
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