32 lines · cpp
1// REQUIRES: x86-registered-target2//3// RUN: %clang_cc1 -triple x86_64-linux-gnu -fprofile-sample-use=%S/Inputs/profile-remap.samples -fprofile-remapping-file=%S/Inputs/profile-remap.map -O2 %s -emit-llvm -o - | FileCheck %s --check-prefixes=CHECK,CHECK-SAMPLES4// RUN: llvm-profdata merge -output %t.profdata %S/Inputs/profile-remap.proftext5// RUN: %clang_cc1 -triple x86_64-linux-gnu -fprofile-instrument-use=llvm -fprofile-instrument-use-path=%t.profdata -fprofile-remapping-file=%S/Inputs/profile-remap.map -O2 %s -emit-llvm -o - | FileCheck %s --check-prefixes=CHECK,CHECK-INSTR6// RUN: llvm-profdata merge -output %t.profdata %S/Inputs/profile-remap_entry.proftext7// RUN: %clang_cc1 -triple x86_64-linux-gnu -fprofile-instrument-use=llvm -fprofile-instrument-use-path=%t.profdata -fprofile-remapping-file=%S/Inputs/profile-remap.map -O2 %s -emit-llvm -o - | FileCheck %s --check-prefixes=CHECK,CHECK-INSTR8 9namespace Foo {10 struct X {};11 bool cond();12 void bar();13 void baz();14 void function(X x) {15 if (cond())16 bar();17 else18 baz();19 }20}21 22// CHECK: define {{.*}} @_ZN3Foo8functionENS_1XE() {{.*}} !prof [[FUNC_ENTRY:![0-9]*]]23// CHECK: br i1 {{.*}} !prof [[BR_WEIGHTS:![0-9]*]]24//25// FIXME: Laplace's rule of succession is applied to sample profiles...26// CHECK-SAMPLES-DAG: [[FUNC_ENTRY]] = !{!"function_entry_count", i64 1}27// CHECK-SAMPLES-DAG: [[BR_WEIGHTS]] = !{!"branch_weights", i32 11, i32 91}28//29// ... but not to instruction profiles.30// CHECK-INSTR-DAG: [[FUNC_ENTRY]] = !{!"function_entry_count", i64 100}31// CHECK-INSTR-DAG: [[BR_WEIGHTS]] = !{!"branch_weights", i32 10, i32 90}32