llvm-project/llvm/test/Transforms/SimplifyCFG/callbr-destinations.ll

29 lines
801 B
LLVM

; RUN: opt < %s -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -disable-output
;
; Test that SimplifyCFG does not cause CallBr instructions to have duplicate
; destinations, which will cause the verifier to assert.
define void @fun0() {
entry:
callbr void asm sideeffect "", "i"(i8* blockaddress(@fun0, %bb1))
to label %bb2 [label %bb1]
bb1: ; preds = %bb
ret void
bb2: ; preds = %bb
ret void
}
define void @fun1() {
entry:
callbr void asm sideeffect "", "i"(i8* blockaddress(@fun1, %bb1))
to label %bb2 [label %bb1]
bb2: ; preds = %bb
ret void
bb1: ; preds = %bb
ret void
}