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; RUN: opt -S -gvn-hoist < %s | FileCheck %s
; Make sure the two stores @B do not get hoisted past the load @B.
; CHECK-LABEL: define i8* @Foo
; CHECK: store
; CHECK: store
; CHECK: load
; CHECK: store
@A = external global i8
@B = external global i8*
define i8* @Foo() {
store i8 0, i8* @A
br i1 undef, label %if.then, label %if.else
if.then:
store i8* null, i8** @B
ret i8* null
if.else:
%1 = load i8*, i8** @B
store i8* null, i8** @B
ret i8* %1
}
; Make sure the two stores @B do not get hoisted past the store @GlobalVar.
; CHECK-LABEL: define i8* @Fun
; CHECK: store
; CHECK: store
; CHECK: store
; CHECK: store
; CHECK: load
@GlobalVar = internal global i8 0
define i8* @Fun() {
store i8 0, i8* @A
br i1 undef, label %if.then, label %if.else
if.then:
store i8* null, i8** @B
ret i8* null
if.else:
store i8 0, i8* @GlobalVar
store i8* null, i8** @B
%1 = load i8*, i8** @B
ret i8* %1
}
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