1 ; RUN: opt -simplifycfg -S -o - < %s | FileCheck %s 2 3 ; This test case was written to trigger an incorrect assert statement in 4 ; -simplifycfg. Thus we don't actually want to check the output, just that 5 ; -simplifycfg ran successfully. Thus we only check that the function still 6 ; exists, and that it still calls foo(). 7 ; 8 ; NOTE: There are some obviously dead blocks and missing branch weight 9 ; metadata. Both of these features were key to triggering the assert. 10 ; Additionally, the not-taken weight of the branch with a weight had to 11 ; be 0 to trigger the assert. 12 13 declare void @foo() nounwind uwtable 14 15 define void @func(i32 %A) nounwind uwtable { 16 ; CHECK-LABEL: define void @func( 17 entry: 18 %cmp11 = icmp eq i32 %A, 1 19 br i1 %cmp11, label %if.then, label %if.else, !prof !0 20 21 if.then: 22 call void @foo() 23 ; CHECK: call void @foo() 24 br label %if.else 25 26 if.else: 27 %cmp17 = icmp eq i32 %A, 2 28 br i1 %cmp17, label %if.then2, label %if.end 29 30 if.then2: 31 br label %if.end 32 33 if.end: 34 ret void 35 } 36 37 !0 = !{!"branch_weights", i32 1, i32 0} 38
