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authorJustin Bogner <mail@justinbogner.com>2014-04-12 00:54:06 +0000
committerJustin Bogner <mail@justinbogner.com>2014-04-12 00:54:06 +0000
commitb1966291de338ceb577205a0dc73df41ea2bd753 (patch)
tree77c6318a4e572c9ce5aaef8443ada7b084250bc4 /clang/test/Profile/cxx-templates.cpp
parent4f7efb7a8fc3590d641d6ee1cd6e88286af79b37 (diff)
downloadbcm5719-llvm-b1966291de338ceb577205a0dc73df41ea2bd753.tar.gz
bcm5719-llvm-b1966291de338ceb577205a0dc73df41ea2bd753.zip
CodeGen: Test instrumentation based profiling of templates
Make sure that templates are handled correctly by profile instrumentation. llvm-svn: 206091
Diffstat (limited to 'clang/test/Profile/cxx-templates.cpp')
-rw-r--r--clang/test/Profile/cxx-templates.cpp41
1 files changed, 41 insertions, 0 deletions
diff --git a/clang/test/Profile/cxx-templates.cpp b/clang/test/Profile/cxx-templates.cpp
new file mode 100644
index 00000000000..d59f7b97c6b
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+++ b/clang/test/Profile/cxx-templates.cpp
@@ -0,0 +1,41 @@
+// Tests for instrumentation of templated code. Each instantiation of a template
+// should be instrumented separately.
+
+// RUN: %clang_cc1 -x c++ %s -triple %itanium_abi_triple -main-file-name cxx-templates.cpp -std=c++11 -o - -emit-llvm -fprofile-instr-generate > %tgen
+// RUN: FileCheck --input-file=%tgen -check-prefix=T0GEN -check-prefix=ALL %s
+// RUN: FileCheck --input-file=%tgen -check-prefix=T100GEN -check-prefix=ALL %s
+
+// RUN: %clang_cc1 -x c++ %s -triple %itanium_abi_triple -main-file-name cxx-templates.cpp -std=c++11 -o - -emit-llvm -fprofile-instr-use=%S/Inputs/cxx-templates.profdata > %tuse
+// RUN: FileCheck --input-file=%tuse -check-prefix=T0USE -check-prefix=ALL %s
+// RUN: FileCheck --input-file=%tuse -check-prefix=T100USE -check-prefix=ALL %s
+
+// T0GEN: @[[T0C:__llvm_profile_counters__Z4loopILj0EEvv]] = linkonce_odr global [2 x i64] zeroinitializer
+// T100GEN: @[[T100C:__llvm_profile_counters__Z4loopILj100EEvv]] = linkonce_odr global [2 x i64] zeroinitializer
+
+// T0GEN-LABEL: define linkonce_odr void @_Z4loopILj0EEvv()
+// T0USE-LABEL: define linkonce_odr void @_Z4loopILj0EEvv()
+// T100GEN-LABEL: define linkonce_odr void @_Z4loopILj100EEvv()
+// T100USE-LABEL: define linkonce_odr void @_Z4loopILj100EEvv()
+template <unsigned N> void loop() {
+ // ALL-NOT: ret
+ // T0GEN: store {{.*}} @[[T0C]], i64 0, i64 0
+ // T100GEN: store {{.*}} @[[T100C]], i64 0, i64 0
+
+ // ALL-NOT: ret
+ // T0GEN: store {{.*}} @[[T0C]], i64 0, i64 1
+ // T0USE: br {{.*}} !prof ![[T01:[0-9]+]]
+ // T100GEN: store {{.*}} @[[T100C]], i64 0, i64 1
+ // T100USE: br {{.*}} !prof ![[T1001:[0-9]+]]
+ for (unsigned I = 0; I < N; ++I) {}
+
+ // ALL: ret
+}
+
+// T0USE-DAG: ![[T01]] = metadata !{metadata !"branch_weights", i32 1, i32 2}
+// T100USE-DAG: ![[T1001]] = metadata !{metadata !"branch_weights", i32 101, i32 2}
+
+int main(int argc, const char *argv[]) {
+ loop<0>();
+ loop<100>();
+ return 0;
+}
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