diff options
Diffstat (limited to 'test/profile')
-rw-r--r-- | test/profile/instrprof-dump.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/test/profile/instrprof-dump.c b/test/profile/instrprof-dump.c new file mode 100644 index 000000000..93c3c46f6 --- /dev/null +++ b/test/profile/instrprof-dump.c @@ -0,0 +1,62 @@ +/* +RUN: rm -fr %t.profdir +RUN: %clang_profgen=%t.profdir/default_%m.profraw -o %t -O2 %s +RUN: %run %t 2>&1 | FileCheck %s --check-prefix=NO_EXIT_WRITE +RUN: llvm-profdata merge -o %t.profdata %t.profdir +RUN: %clang_profuse=%t.profdata -o - -S -emit-llvm %s | FileCheck %s --check-prefix=PROF + +NO_EXIT_WRITE: Profile data not written to file: already written +*/ + +int __llvm_profile_dump(void); +void __llvm_profile_reset_counters(void); +int foo(int); +int bar(int); +int skip(int); + +int main(int argc, const char *argv[]) { + int Ret = foo(0); /* region 1 */ + __llvm_profile_dump(); + + /* not profiled -- cleared later. */ + skip(0); /* skipped region */ + + __llvm_profile_reset_counters(); + Ret += bar(0); /* region 2 */ + __llvm_profile_dump(); + + skip(1); + + __llvm_profile_reset_counters(); + /* foo's profile will be merged. */ + foo(1); /* region 3 */ + __llvm_profile_dump(); + + return Ret; +} + +__attribute__((noinline)) int foo(int X) { + /* PROF: define {{.*}} @foo({{.*}}!prof ![[ENT:[0-9]+]] + PROF: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}, !prof ![[PD1:[0-9]+]] + */ + return X <= 0 ? -X : X; +} + +__attribute__((noinline)) int skip(int X) { + /* PROF: define {{.*}} @skip( + PROF: br i1 %{{.*}}, label %{{.*}}, label %{{[^,]+$}} + */ + return X <= 0 ? -X : X; +} + +__attribute__((noinline)) int bar(int X) { + /* PROF-LABEL: define {{.*}} @bar( + PROF: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}, !prof ![[PD2:[0-9]+]] + */ + return X <= 0 ? -X : X; +} + +/* +PROF: ![[ENT]] = !{!"function_entry_count", i64 2} +PROF: ![[PD1]] = !{!"branch_weights", i32 2, i32 2} +*/ |