llvm/test/Transforms/Mem2Reg/UndefValuesMerge.ll


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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt < %s -passes=mem2reg -S | FileCheck %s

define i32 @testfunc(i1 %C, i32 %i, i8 %j) {
; CHECK-LABEL: define i32 @testfunc(
; CHECK-SAME: i1 [[C:%.*]], i32 [[I:%.*]], i8 [[J:%.*]]) {
; CHECK-NEXT:    br i1 [[C]], label %[[T:.*]], label %[[CONT:.*]]
; CHECK:       [[T]]:
; CHECK-NEXT:    br label %[[CONT]]
; CHECK:       [[CONT]]:
; CHECK-NEXT:    [[I_0:%.*]] = phi i32 [ [[I]], %[[T]] ], [ undef, [[TMP0:%.*]] ]
; CHECK-NEXT:    ret i32 [[I_0]]
;
  %I = alloca i32
  br i1 %C, label %T, label %Cont
T:
  store i32 %i, ptr %I
  br label %Cont
Cont:
  %Y = load i32, ptr %I
  ret i32 %Y
}