| Eric Christopher | cee313d | 2019-04-17 04:52:47 +0000 | [diff] [blame] | 1 | |
| 2 | ; RUN: opt < %s -passes='require<profile-summary>,cgscc(inline)' -inline-threshold=100 -inline-cold-callsite-threshold=0 -S | FileCheck %s |
| 3 | |
| 4 | ; This tests that a cold callsite gets the inline-cold-callsite-threshold |
| 5 | ; and does not get inlined. Another callsite to an identical callee that |
| 6 | ; is not cold gets inlined because cost is below the inline-threshold. |
| 7 | |
| 8 | define void @callee() { |
| 9 | call void @extern() |
| 10 | call void @extern() |
| 11 | ret void |
| 12 | } |
| 13 | |
| 14 | declare void @extern() |
| 15 | declare i1 @ext(i32) |
| 16 | |
| 17 | ; CHECK-LABEL: caller |
| 18 | define i32 @caller(i32 %n) { |
| 19 | entry: |
| 20 | %cmp4 = icmp sgt i32 %n, 0 |
| 21 | br i1 %cmp4, label %for.body, label %for.cond.cleanup |
| 22 | |
| 23 | for.cond.cleanup: |
| 24 | ret i32 0 |
| 25 | |
| 26 | for.body: |
| 27 | %i.05 = phi i32 [ %inc, %for.inc ], [ 0, %entry ] |
| 28 | ; CHECK: %call = tail call |
| 29 | %call = tail call zeroext i1 @ext(i32 %i.05) |
| 30 | ; CHECK-NOT: call void @callee |
| 31 | ; CHECK-NEXT: call void @extern |
| 32 | call void @callee() |
| 33 | br i1 %call, label %cold, label %for.inc, !prof !0 |
| 34 | |
| 35 | cold: |
| 36 | ; CHECK: call void @callee |
| 37 | call void @callee() |
| 38 | br label %for.inc |
| 39 | |
| 40 | for.inc: |
| 41 | %inc = add nuw nsw i32 %i.05, 1 |
| 42 | %exitcond = icmp eq i32 %inc, %n |
| 43 | br i1 %exitcond, label %for.cond.cleanup, label %for.body |
| 44 | } |
| 45 | |
| 46 | |
| 47 | !0 = !{!"branch_weights", i32 1, i32 2000} |