34 lines
911 B
LLVM
34 lines
911 B
LLVM
|
; RUN: llc < %s -verify-machineinstrs -mtriple=i686-linux -mattr=-sse | FileCheck %s
|
||
|
|
; PR11768
|
||
|
|
|
||
|
|
@ptr = external dso_local global i8*
|
||
|
|
|
||
|
|
define void @baz() nounwind ssp {
|
||
|
|
entry:
|
||
|
|
%0 = load i8*, i8** @ptr, align 4
|
||
|
|
%cmp = icmp eq i8* %0, null
|
||
|
|
fence seq_cst
|
||
|
|
br i1 %cmp, label %if.then, label %if.else
|
||
|
|
|
||
|
|
; Make sure the fence comes before the comparison, since it
|
||
|
|
; clobbers EFLAGS.
|
||
|
|
|
||
|
|
; CHECK: lock orl {{.*}}, (%esp)
|
||
|
|
; CHECK-NEXT: testl [[REG:%e[a-z]+]], [[REG]]
|
||
|
|
|
||
|
|
if.then: ; preds = %entry
|
||
|
|
tail call void bitcast (void (...)* @foo to void ()*)() nounwind
|
||
|
|
br label %if.end
|
||
|
|
|
||
|
|
if.else: ; preds = %entry
|
||
|
|
tail call void bitcast (void (...)* @bar to void ()*)() nounwind
|
||
|
|
br label %if.end
|
||
|
|
|
||
|
|
if.end: ; preds = %if.else, %if.then
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
declare void @foo(...)
|
||
|
|
|
||
|
|
declare void @bar(...)
|