1*9880d681SAndroid Build Coastguard Worker; RUN: llc -O0 -mtriple=x86_64-linux -asm-verbose=false -verify-machineinstrs < %s | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker; RUN: llc -O0 -mtriple=x86_64-windows-itanium -asm-verbose=false -verify-machineinstrs < %s | FileCheck %s 3*9880d681SAndroid Build Coastguard Worker 4*9880d681SAndroid Build Coastguard Worker; Fast-isel mustn't add a block to the MBB successor/predecessor list twice. 5*9880d681SAndroid Build Coastguard Worker; The machine verifier will catch and complain about this case. 6*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: baz 7*9880d681SAndroid Build Coastguard Worker; CHECK: retq 8*9880d681SAndroid Build Coastguard Workerdefine void @baz() { 9*9880d681SAndroid Build Coastguard Workerentry: 10*9880d681SAndroid Build Coastguard Worker br i1 undef, label %exit, label %exit 11*9880d681SAndroid Build Coastguard Worker 12*9880d681SAndroid Build Coastguard Workerexit: 13*9880d681SAndroid Build Coastguard Worker ret void 14*9880d681SAndroid Build Coastguard Worker} 15*9880d681SAndroid Build Coastguard Worker 16*9880d681SAndroid Build Coastguard Worker; rdar://8337108 17*9880d681SAndroid Build Coastguard Worker 18*9880d681SAndroid Build Coastguard Worker; Fast-isel shouldn't try to look through the compare because it's in a 19*9880d681SAndroid Build Coastguard Worker; different basic block, so its operands aren't necessarily exported 20*9880d681SAndroid Build Coastguard Worker; for cross-block usage. 21*9880d681SAndroid Build Coastguard Worker 22*9880d681SAndroid Build Coastguard Worker; CHECK: movb %al, [[OFS:[0-9]*]](%rsp) 23*9880d681SAndroid Build Coastguard Worker; CHECK: callq {{_?}}bar 24*9880d681SAndroid Build Coastguard Worker; CHECK: movb [[OFS]](%rsp), %al 25*9880d681SAndroid Build Coastguard Worker 26*9880d681SAndroid Build Coastguard Workerdeclare void @bar() 27*9880d681SAndroid Build Coastguard Worker 28*9880d681SAndroid Build Coastguard Workerdefine void @foo(i32 %a, i32 %b) nounwind personality i32 (...)* @__gxx_personality_v0 { 29*9880d681SAndroid Build Coastguard Workerentry: 30*9880d681SAndroid Build Coastguard Worker %q = add i32 %a, 7 31*9880d681SAndroid Build Coastguard Worker %r = add i32 %b, 9 32*9880d681SAndroid Build Coastguard Worker %t = icmp ult i32 %q, %r 33*9880d681SAndroid Build Coastguard Worker invoke void @bar() to label %next unwind label %unw 34*9880d681SAndroid Build Coastguard Workernext: 35*9880d681SAndroid Build Coastguard Worker br i1 %t, label %true, label %return 36*9880d681SAndroid Build Coastguard Workertrue: 37*9880d681SAndroid Build Coastguard Worker call void @bar() 38*9880d681SAndroid Build Coastguard Worker br label %return 39*9880d681SAndroid Build Coastguard Workerreturn: 40*9880d681SAndroid Build Coastguard Worker ret void 41*9880d681SAndroid Build Coastguard Workerunw: 42*9880d681SAndroid Build Coastguard Worker %exn = landingpad {i8*, i32} 43*9880d681SAndroid Build Coastguard Worker cleanup 44*9880d681SAndroid Build Coastguard Worker unreachable 45*9880d681SAndroid Build Coastguard Worker} 46*9880d681SAndroid Build Coastguard Worker 47*9880d681SAndroid Build Coastguard Workerdeclare i32 @__gxx_personality_v0(...) 48