1 ; RUN: llc < %s -mtriple=i686-linux -mattr=-sse | FileCheck %s 2 ; PR11768 3 4 @ptr = external global i8* 5 6 define void @baz() nounwind ssp { 7 entry: 8 %0 = load i8** @ptr, align 4 9 %cmp = icmp eq i8* %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 17 ; CHECK-NEXT: orl {{.*}}, (%esp) 18 ; CHECK-NEXT: cmpl $0 19 20 if.then: ; preds = %entry 21 tail call void bitcast (void (...)* @foo to void ()*)() nounwind 22 br label %if.end 23 24 if.else: ; preds = %entry 25 tail call void bitcast (void (...)* @bar to void ()*)() nounwind 26 br label %if.end 27 28 if.end: ; preds = %if.else, %if.then 29 ret void 30 } 31 32 declare void @foo(...) 33 34 declare void @bar(...) 35
