blob: 063bde83f7b33cd498485c0bd59138af93bf0c5d [file] [log] [blame]
; RUN: opt -simplifycfg -S %s | FileCheck %s
; Make sure we don't speculate loads under AddressSanitizer.
@g = global i32 0, align 4
define i32 @TestNoAsan(i32 %cond) nounwind readonly uwtable {
entry:
%tobool = icmp eq i32 %cond, 0
br i1 %tobool, label %return, label %if.then
if.then: ; preds = %entry
%0 = load i32, i32* @g, align 4
br label %return
return: ; preds = %entry, %if.then
%retval = phi i32 [ %0, %if.then ], [ 0, %entry ]
ret i32 %retval
; CHECK-LABEL: @TestNoAsan
; CHECK: %[[LOAD:[^ ]*]] = load
; CHECK: select{{.*}}[[LOAD]]
; CHECK: ret i32
}
define i32 @TestAsan(i32 %cond) nounwind readonly uwtable sanitize_address {
entry:
%tobool = icmp eq i32 %cond, 0
br i1 %tobool, label %return, label %if.then
if.then: ; preds = %entry
%0 = load i32, i32* @g, align 4
br label %return
return: ; preds = %entry, %if.then
%retval = phi i32 [ %0, %if.then ], [ 0, %entry ]
ret i32 %retval
; CHECK-LABEL: @TestAsan
; CHECK: br i1
; CHECK: load i32, i32* @g
; CHECK: br label
; CHECK: ret i32
}