48 lines
1.2 KiB
LLVM
48 lines
1.2 KiB
LLVM
; RUN: llc -O0 -mtriple=x86_64-linux -asm-verbose=false -verify-machineinstrs < %s | FileCheck %s
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; RUN: llc -O0 -mtriple=x86_64-windows-itanium -asm-verbose=false -verify-machineinstrs < %s | FileCheck %s
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; Fast-isel mustn't add a block to the MBB successor/predecessor list twice.
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; The machine verifier will catch and complain about this case.
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; CHECK-LABEL: baz
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; CHECK: retq
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define void @baz() {
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entry:
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br i1 undef, label %exit, label %exit
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exit:
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ret void
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}
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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, [[OFS:[0-9]*]](%rsp)
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; CHECK: callq {{_?}}bar
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; CHECK: movb [[OFS]](%rsp), %al
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declare void @bar()
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define void @foo(i32 %a, i32 %b) nounwind personality i32 (...)* @__gxx_personality_v0 {
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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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%exn = landingpad {i8*, i32}
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cleanup
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unreachable
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}
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declare i32 @__gxx_personality_v0(...)
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