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; RUN: opt -S -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 < %s | FileCheck %s
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
@GV = external constant ptr
define ptr @test1(i1 %cond, ptr %P) {
entry:
br i1 %cond, label %if, label %then
then:
br label %join
if:
%load = load ptr, ptr @GV, align 8, !dereferenceable !0
br label %join
join:
%phi = phi ptr [ %P, %then ], [ %load, %if ]
ret ptr %phi
}
; CHECK-LABEL: define ptr @test1(
; CHECK: %[[load:.*]] = load ptr, ptr @GV, align 8{{$}}
; CHECK: %[[phi:.*]] = select i1 %cond, ptr %[[load]], ptr %P
; CHECK: ret ptr %[[phi]]
!0 = !{i64 8}
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