| ; RUN: opt -simplifycfg -S -o - < %s | FileCheck %s |
| |
| ; This test case was written to trigger an incorrect assert statement in |
| ; -simplifycfg. Thus we don't actually want to check the output, just that |
| ; -simplifycfg ran successfully. Thus we only check that the function still |
| ; exists, and that it still calls foo(). |
| ; |
| ; NOTE: There are some obviously dead blocks and missing branch weight |
| ; metadata. Both of these features were key to triggering the assert. |
| ; Additionally, the not-taken weight of the branch with a weight had to |
| ; be 0 to trigger the assert. |
| |
| declare void @foo() nounwind uwtable |
| |
| define void @func(i32 %A) nounwind uwtable { |
| ; CHECK-LABEL: define void @func( |
| entry: |
| %cmp11 = icmp eq i32 %A, 1 |
| br i1 %cmp11, label %if.then, label %if.else, !prof !0 |
| |
| if.then: |
| call void @foo() |
| ; CHECK: call void @foo() |
| br label %if.else |
| |
| if.else: |
| %cmp17 = icmp eq i32 %A, 2 |
| br i1 %cmp17, label %if.then2, label %if.end |
| |
| if.then2: |
| br label %if.end |
| |
| if.end: |
| ret void |
| } |
| |
| !0 = !{!"branch_weights", i32 1, i32 0} |
