1; RUN: llc < %s -verify-machineinstrs -mtriple=i686-linux -mattr=-sse | FileCheck %s 2; PR11768 3 4@ptr = external dso_local global ptr 5 6define void @baz() nounwind ssp { 7entry: 8 %0 = load ptr, ptr @ptr, align 4 9 %cmp = icmp eq ptr %0, null 10 fence seq_cst 11 br i1 %cmp, label %if.then, label %if.else 12 13; Make sure the fence comes before the comparison, since it 14; clobbers EFLAGS. 15 16; CHECK: lock orl {{.*}}, (%esp) 17; CHECK-NEXT: testl [[REG:%e[a-z]+]], [[REG]] 18 19if.then: ; preds = %entry 20 tail call void @foo() nounwind 21 br label %if.end 22 23if.else: ; preds = %entry 24 tail call void @bar() nounwind 25 br label %if.end 26 27if.end: ; preds = %if.else, %if.then 28 ret void 29} 30 31declare void @foo(...) 32 33declare void @bar(...) 34