llvm/test/Transforms/Sink/landingpad.ll
Keno Fischer 888d479702 [Sink] Don't move landingpads
Summary: Moving landingpads into successor basic blocks makes the
verifier sad. Teach Sink that much like PHI nodes and terminator
instructions, landingpads (and cleanuppads, etc.) may not be moved
between basic blocks.

Reviewers: majnemer

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D14475

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253182 91177308-0d34-0410-b5e6-96231b3b80d8
2015-11-16 04:47:58 +00:00

34 lines
719 B
LLVM

; Test that we don't sink landingpads
; RUN: opt -sink -S < %s | FileCheck %s
declare hidden void @g()
declare void @h()
declare i32 @__gxx_personality_v0(...)
define void @f() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
entry:
invoke void @g()
to label %invoke.cont.15 unwind label %lpad
invoke.cont.15:
unreachable
; CHECK: lpad:
; CHECK: %0 = landingpad { i8*, i32 }
lpad:
%0 = landingpad { i8*, i32 }
catch i8* null
invoke void @h()
to label %invoke.cont unwind label %lpad.1
; CHECK: invoke.cont
; CHECK-NOT: %0 = landingpad { i8*, i32 }
invoke.cont:
ret void
lpad.1:
%1 = landingpad { i8*, i32 }
cleanup
resume { i8*, i32 } %1
}