llvm-6502/test/CodeGen/ARM/sjlj-prepare-critical-edge.ll
Chad Rosier 1e45487dfd [SjLj Prepare] When demoting an invoke instructions to the stack, if the normal
edge is critical, then split it so we can insert the store.
rdar://13126179

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174418 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-05 18:23:10 +00:00

68 lines
2.6 KiB
LLVM

; RUN: llc < %s -O1 -mtriple thumbv7-apple-ios6
; Just make sure no one tries to make the assumption that the normal edge of an
; invoke is never a critical edge. Previously, this code would assert.
%struct.__CFString = type opaque
declare void @bar(%struct.__CFString*, %struct.__CFString*)
define noalias i8* @foo(i8* nocapture %inRefURL) noreturn ssp {
entry:
%call = tail call %struct.__CFString* @bar3()
%call2 = invoke i8* @bar2()
to label %for.cond unwind label %lpad
for.cond: ; preds = %entry, %for.cond
invoke void @bar(%struct.__CFString* undef, %struct.__CFString* null)
to label %for.cond unwind label %lpad5
lpad: ; preds = %entry
%0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_sj0 to i8*)
cleanup
%1 = extractvalue { i8*, i32 } %0, 0
%2 = extractvalue { i8*, i32 } %0, 1
br label %ehcleanup
lpad5: ; preds = %for.cond
%3 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_sj0 to i8*)
cleanup
%4 = extractvalue { i8*, i32 } %3, 0
%5 = extractvalue { i8*, i32 } %3, 1
invoke void @release(i8* %call2)
to label %ehcleanup unwind label %terminate.lpad.i.i16
terminate.lpad.i.i16: ; preds = %lpad5
%6 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_sj0 to i8*)
catch i8* null
tail call void @terminatev() noreturn nounwind
unreachable
ehcleanup: ; preds = %lpad5, %lpad
%exn.slot.0 = phi i8* [ %1, %lpad ], [ %4, %lpad5 ]
%ehselector.slot.0 = phi i32 [ %2, %lpad ], [ %5, %lpad5 ]
%7 = bitcast %struct.__CFString* %call to i8*
invoke void @release(i8* %7)
to label %_ZN5SmartIPK10__CFStringED1Ev.exit unwind label %terminate.lpad.i.i
terminate.lpad.i.i: ; preds = %ehcleanup
%8 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__gxx_personality_sj0 to i8*)
catch i8* null
tail call void @terminatev() noreturn nounwind
unreachable
_ZN5SmartIPK10__CFStringED1Ev.exit: ; preds = %ehcleanup
%lpad.val = insertvalue { i8*, i32 } undef, i8* %exn.slot.0, 0
%lpad.val12 = insertvalue { i8*, i32 } %lpad.val, i32 %ehselector.slot.0, 1
resume { i8*, i32 } %lpad.val12
}
declare %struct.__CFString* @bar3()
declare i8* @bar2()
declare i32 @__gxx_personality_sj0(...)
declare void @release(i8*)
declare void @terminatev()