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; RUN: llc -O0 -mtriple=x86_64-linux -asm-verbose=false -verify-machineinstrs < %s | FileCheck %s
; RUN: llc -O0 -mtriple=x86_64-windows-itanium -asm-verbose=false -verify-machineinstrs < %s | FileCheck %s
; Fast-isel mustn't add a block to the MBB successor/predecessor list twice.
; The machine verifier will catch and complain about this case.
; CHECK-LABEL: baz
; CHECK: retq
define void @baz() {
entry:
br i1 undef, label %exit, label %exit
exit:
ret void
}
; rdar://8337108
; Fast-isel shouldn't try to look through the compare because it's in a
; different basic block, so its operands aren't necessarily exported
; for cross-block usage.
; CHECK: movb %al, [[OFS:[0-9]*]](%rsp)
; CHECK: callq {{_?}}bar
; CHECK: movb [[OFS]](%rsp), %al
declare void @bar()
define void @foo(i32 %a, i32 %b) nounwind personality i32 (...)* @__gxx_personality_v0 {
entry:
%q = add i32 %a, 7
%r = add i32 %b, 9
%t = icmp ult i32 %q, %r
invoke void @bar() to label %next unwind label %unw
next:
br i1 %t, label %true, label %return
true:
call void @bar()
br label %return
return:
ret void
unw:
%exn = landingpad {i8*, i32}
cleanup
unreachable
}
declare i32 @__gxx_personality_v0(...)
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