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899eaa3569
Optimize trivial branches in CodeGenPrepare, which often get created from the lowering of objectsize intrinsics. Unfortunately, a number of tests were relying on llc not optimizing trivial branches, so I had to add an option to allow them to continue to test what they originally tested. This fixes <rdar://problem/8785296> and <rdar://problem/9112893>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127498 91177308-0d34-0410-b5e6-96231b3b80d8
22 lines
438 B
LLVM
22 lines
438 B
LLVM
; RUN: llc < %s -march=x86 -disable-cgp-branch-opts | grep movzbl
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; PR3366
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define void @_ada_c34002a() nounwind {
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entry:
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%0 = load i8* null, align 1
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%1 = sdiv i8 90, %0
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%2 = icmp ne i8 %1, 3
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%3 = zext i1 %2 to i8
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%toBool449 = icmp ne i8 %3, 0
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%4 = or i1 false, %toBool449
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%5 = zext i1 %4 to i8
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%toBool450 = icmp ne i8 %5, 0
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br i1 %toBool450, label %bb451, label %bb457
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bb451:
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br label %bb457
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bb457:
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unreachable
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}
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