| Dehao Chen | e593049 | 2017-03-20 16:40:44 +0000 | [diff] [blame^] | 1 | ; RUN: opt < %s -inline -S | FileCheck %s |
| 2 | ; Checks if inliner updates branch_weights annotation for call instructions. |
| 3 | |
| 4 | declare void @ext(); |
| 5 | declare void @ext1(); |
| 6 | |
| 7 | ; CHECK: define void @callee(i32 %n) !prof ![[ENTRY_COUNT:[0-9]*]] |
| 8 | define void @callee(i32 %n) !prof !1 { |
| 9 | %cond = icmp sle i32 %n, 10 |
| 10 | br i1 %cond, label %cond_true, label %cond_false |
| 11 | cond_true: |
| 12 | ; ext1 is optimized away, thus not updated. |
| 13 | ; CHECK: call void @ext1(), !prof ![[COUNT_CALLEE1:[0-9]*]] |
| 14 | call void @ext1(), !prof !2 |
| 15 | ret void |
| 16 | cond_false: |
| 17 | ; ext is cloned and updated. |
| 18 | ; CHECK: call void @ext(), !prof ![[COUNT_CALLEE:[0-9]*]] |
| 19 | call void @ext(), !prof !2 |
| 20 | ret void |
| 21 | } |
| 22 | |
| 23 | ; CHECK: define void @caller() |
| 24 | define void @caller() { |
| 25 | ; CHECK: call void @ext(), !prof ![[COUNT_CALLER:[0-9]*]] |
| 26 | call void @callee(i32 15), !prof !3 |
| 27 | ret void |
| 28 | } |
| 29 | |
| 30 | !llvm.module.flags = !{!0} |
| 31 | !0 = !{i32 1, !"MaxFunctionCount", i32 2000} |
| 32 | !1 = !{!"function_entry_count", i64 1000} |
| 33 | !2 = !{!"branch_weights", i64 2000} |
| 34 | !3 = !{!"branch_weights", i64 400} |
| 35 | attributes #0 = { alwaysinline } |
| 36 | ; CHECK: ![[ENTRY_COUNT]] = !{!"function_entry_count", i64 600} |
| 37 | ; CHECK: ![[COUNT_CALLEE1]] = !{!"branch_weights", i64 2000} |
| 38 | ; CHECK: ![[COUNT_CALLEE]] = !{!"branch_weights", i32 1200} |
| 39 | ; CHECK: ![[COUNT_CALLER]] = !{!"branch_weights", i32 800} |