| Richard Smith | 8654ae5 | 2018-10-10 23:13:35 +0000 | [diff] [blame^] | 1 | // RUN: %clang_cc1 -triple x86_64-linux-gnu -fprofile-sample-use=%S/Inputs/profile-remap.samples -fprofile-remapping-file=%S/Inputs/profile-remap.map -fexperimental-new-pass-manager -O2 %s -emit-llvm -o - | FileCheck %s --check-prefixes=CHECK,CHECK-SAMPLES |
| 2 | // RUN: llvm-profdata merge -output %T.profdata %S/Inputs/profile-remap.proftext |
| 3 | // RUN: %clang_cc1 -triple x86_64-linux-gnu -fprofile-instrument-use-path=%T.profdata -fprofile-remapping-file=%S/Inputs/profile-remap.map -fexperimental-new-pass-manager -O2 %s -emit-llvm -o - | FileCheck %s --check-prefixes=CHECK,CHECK-INSTR |
| 4 | |
| 5 | namespace Foo { |
| 6 | struct X {}; |
| 7 | bool cond(); |
| 8 | void bar(); |
| 9 | void baz(); |
| 10 | void function(X x) { |
| 11 | if (cond()) |
| 12 | bar(); |
| 13 | else |
| 14 | baz(); |
| 15 | } |
| 16 | } |
| 17 | |
| 18 | // CHECK: define {{.*}} @_ZN3Foo8functionENS_1XE() {{.*}} !prof [[FUNC_ENTRY:![0-9]*]] |
| 19 | // CHECK: br i1 {{.*}} !prof [[BR_WEIGHTS:![0-9]*]] |
| 20 | // |
| 21 | // FIXME: Laplace's rule of succession is applied to sample profiles... |
| 22 | // CHECK-SAMPLES-DAG: [[FUNC_ENTRY]] = !{!"function_entry_count", i64 1} |
| 23 | // CHECK-SAMPLES-DAG: [[BR_WEIGHTS]] = !{!"branch_weights", i32 11, i32 91} |
| 24 | // |
| 25 | // ... but not to instruction profiles. |
| 26 | // CHECK-INSTR-DAG: [[FUNC_ENTRY]] = !{!"function_entry_count", i64 100} |
| 27 | // CHECK-INSTR-DAG: [[BR_WEIGHTS]] = !{!"branch_weights", i32 10, i32 90} |