llvm-mirror/test/Transforms/Inline/infinite-loop-two-predecessors.ll
Eric Christopher a62270de2c Revert "Temporarily Revert "Add basic loop fusion pass.""
The reversion apparently deleted the test/Transforms directory.

Will be re-reverting again.

llvm-svn: 358552
2019-04-17 04:52:47 +00:00

33 lines
782 B
LLVM

; RUN: opt -S -o - %s -inline | FileCheck %s
define void @f1() {
bb.0:
br i1 false, label %bb.2, label %bb.1
bb.1: ; preds = %bb.0
br label %bb.2
bb.2: ; preds = %bb.0, %bb.1
%tmp0 = phi i1 [ true, %bb.1 ], [ false, %bb.0 ]
br i1 %tmp0, label %bb.4, label %bb.3
bb.3: ; preds = %bb.3, %bb.3
br i1 undef, label %bb.3, label %bb.3
bb.4: ; preds = %bb.2
ret void
}
define void @f2() {
bb.0:
call void @f1()
ret void
}
; f1 should be inlined into f2 and simplified/collapsed to nothing.
; CHECK-LABEL: define void @f2() {
; CHECK-NEXT: bb.0:
; CHECK-NEXT: ret void
; CHECK-NEXT: }