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8bef744518
comparison is in a different basic block from the branch. In such cases, the comparison's operands may not have initialized virtual registers available. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111709 91177308-0d34-0410-b5e6-96231b3b80d8
30 lines
665 B
LLVM
30 lines
665 B
LLVM
; RUN: llc -O0 -march=x86-64 -asm-verbose=false < %s | FileCheck %s
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; rdar://8337108
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; Fast-isel shouldn't try to look through the compare because it's in a
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; different basic block, so its operands aren't necessarily exported
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; for cross-block usage.
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; CHECK: movb %al, 7(%rsp)
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; CHECK: callq {{_?}}bar
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; CHECK: movb 7(%rsp), %al
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declare void @bar()
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define void @foo(i32 %a, i32 %b) nounwind {
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entry:
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%q = add i32 %a, 7
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%r = add i32 %b, 9
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%t = icmp ult i32 %q, %r
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invoke void @bar() to label %next unwind label %unw
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next:
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br i1 %t, label %true, label %return
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true:
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call void @bar()
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br label %return
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return:
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ret void
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unw:
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unreachable
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}
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