CodeGen: Handle PGO counters for constructors and destructors
llvm-svn: 199864
diff --git a/clang/test/CodeGenCXX/instr-profile-class.cpp b/clang/test/CodeGenCXX/instr-profile-class.cpp
new file mode 100644
index 0000000..d731e1a
--- /dev/null
+++ b/clang/test/CodeGenCXX/instr-profile-class.cpp
@@ -0,0 +1,82 @@
+// Test that instrumentation based profiling feeds branch prediction
+// correctly. This tests both generation of profile data and use of the same,
+// and the input file for the -fprofile-instr-use case is expected to be result
+// of running the program generated by the -fprofile-instr-generate case
+// (excepting no_usable_data). As such, main() should call every function in
+// this test.
+
+// RUN: %clang %s -o - -emit-llvm -S -fprofile-instr-generate -fno-exceptions -target %itanium_abi_triple > %tgen
+// RUN: FileCheck --input-file=%tgen -check-prefix=CTRGEN %s
+// RUN: FileCheck --input-file=%tgen -check-prefix=DTRGEN %s
+// RUN: FileCheck --input-file=%tgen -check-prefix=MTHGEN %s
+// RUN: FileCheck --input-file=%tgen -check-prefix=WRPGEN %s
+
+// RUN: %clang %s -o - -emit-llvm -S -fprofile-instr-use=%S/Inputs/instr-profile-class.pgodata -fno-exceptions -target %itanium_abi_triple > %tuse
+// RUN: FileCheck --input-file=%tuse -check-prefix=CTRUSE %s
+// RUN: FileCheck --input-file=%tuse -check-prefix=DTRUSE %s
+// RUN: FileCheck --input-file=%tuse -check-prefix=MTHUSE %s
+// RUN: FileCheck --input-file=%tuse -check-prefix=WRPUSE %s
+
+class Simple {
+ int Member;
+public:
+ // CTRGEN-LABEL: define {{.*}} @_ZN6SimpleC2Ei(
+ // CTRUSE-LABEL: define {{.*}} @_ZN6SimpleC2Ei(
+ // CTRGEN: store {{.*}} @[[SCC:__llvm_pgo_ctr[0-9]*]], i64 0, i64 0
+ explicit Simple(int Member) : Member(Member) {
+ // CTRGEN: store {{.*}} @[[SCC]], i64 0, i64 1
+ // CTRUSE: br {{.*}} !prof ![[SC1:[0-9]+]]
+ if (Member) {}
+ // CTRGEN-NOT: store {{.*}} @[[SCC]],
+ // CTRUSE-NOT: br {{.*}} !prof ![0-9]+
+ // CTRUSE: ret void
+ }
+ // CTRUSE: ![[SC1]] = metadata !{metadata !"branch_weights", i32 100, i32 2}
+
+ // DTRGEN-LABEL: define {{.*}} @_ZN6SimpleD2Ev(
+ // DTRUSE-LABEL: define {{.*}} @_ZN6SimpleD2Ev(
+ // DTRGEN: store {{.*}} @[[SDC:__llvm_pgo_ctr[0-9]*]], i64 0, i64 0
+ ~Simple() {
+ // DTRGEN: store {{.*}} @[[SDC]], i64 0, i64 1
+ // DTRUSE: br {{.*}} !prof ![[SD1:[0-9]+]]
+ if (Member) {}
+ // DTRGEN-NOT: store {{.*}} @[[SDC]],
+ // DTRUSE-NOT: br {{.*}} !prof ![0-9]+
+ // DTRUSE: ret void
+ }
+ // DTRUSE: ![[SD1]] = metadata !{metadata !"branch_weights", i32 100, i32 2}
+
+ // MTHGEN-LABEL: define {{.*}} @_ZN6Simple6methodEv(
+ // MTHUSE-LABEL: define {{.*}} @_ZN6Simple6methodEv(
+ // MTHGEN: store {{.*}} @[[SMC:__llvm_pgo_ctr[0-9]*]], i64 0, i64 0
+ void method() {
+ // MTHGEN: store {{.*}} @[[SMC]], i64 0, i64 1
+ // MTHUSE: br {{.*}} !prof ![[SM1:[0-9]+]]
+ if (Member) {}
+ // MTHGEN-NOT: store {{.*}} @[[SMC]],
+ // MTHUSE-NOT: br {{.*}} !prof ![0-9]+
+ // MTHUSE: ret void
+ }
+ // MTHUSE: ![[SM1]] = metadata !{metadata !"branch_weights", i32 100, i32 2}
+};
+
+// WRPGEN-LABEL: define {{.*}} @_Z14simple_wrapperv(
+// WRPUSE-LABEL: define {{.*}} @_Z14simple_wrapperv(
+// WRPGEN: store {{.*}} @[[SWC:__llvm_pgo_ctr[0-9]*]], i64 0, i64 0
+void simple_wrapper() {
+ // WRPGEN: store {{.*}} @[[SWC]], i64 0, i64 1
+ // WRPUSE: br {{.*}} !prof ![[SW1:[0-9]+]]
+ for (int I = 0; I < 100; ++I) {
+ Simple S(I);
+ S.method();
+ }
+ // WRPGEN-NOT: store {{.*}} @[[SWC]],
+ // WRPUSE-NOT: br {{.*}} !prof ![0-9]+
+ // WRPUSE: ret void
+}
+// WRPUSE: ![[SW1]] = metadata !{metadata !"branch_weights", i32 100, i32 2}
+
+int main(int argc, const char *argv[]) {
+ simple_wrapper();
+ return 0;
+}