llvm/test/Transforms/SCCP/lifetime.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt -S -passes=ipsccp < %s | FileCheck %s

define void @test() {
; CHECK-LABEL: define void @test() {
; CHECK-NEXT:    [[A:%.*]] = alloca [4 x i16], align 2
; CHECK-NEXT:    [[CMP:%.*]] = icmp eq ptr [[A]], inttoptr (i64 -1 to ptr)
; CHECK-NEXT:    br i1 [[CMP]], label %[[IF:.*]], label %[[EXIT:.*]]
; CHECK:       [[IF]]:
; CHECK-NEXT:    call void @llvm.lifetime.start.p0(ptr [[A]])
; CHECK-NEXT:    br label %[[EXIT]]
; CHECK:       [[EXIT]]:
; CHECK-NEXT:    ret void
;
  %a = alloca [4 x i16]
  %cmp = icmp eq ptr %a, inttoptr (i64 -1 to ptr)
  br i1 %cmp, label %if, label %exit

if:
  call void @llvm.lifetime.start.p0(ptr %a)
  br label %exit

exit:
  ret void
}