9121220804
Shared objects are fairly broken for InstrProf right now -- a follow-up commit in compiler-rt will fix the rest of this. The main problem here is that at link time, profile data symbols in the shared object might get used instead of symbols from the main executable, creating invalid profile data sections. <rdar://problem/16918688> llvm-svn: 208939
43 lines
1.9 KiB
C++
43 lines
1.9 KiB
C++
// Tests for instrumentation of templated code. Each instantiation of a template
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// should be instrumented separately.
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// 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
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// RUN: FileCheck --input-file=%tgen -check-prefix=T0GEN -check-prefix=ALL %s
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// RUN: FileCheck --input-file=%tgen -check-prefix=T100GEN -check-prefix=ALL %s
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// RUN: llvm-profdata merge %S/Inputs/cxx-templates.proftext -o %t.profdata
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// 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=%t.profdata > %tuse
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// RUN: FileCheck --input-file=%tuse -check-prefix=T0USE -check-prefix=ALL %s
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// RUN: FileCheck --input-file=%tuse -check-prefix=T100USE -check-prefix=ALL %s
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// T0GEN: @[[T0C:__llvm_profile_counters__Z4loopILj0EEvv]] = linkonce_odr hidden global [2 x i64] zeroinitializer
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// T100GEN: @[[T100C:__llvm_profile_counters__Z4loopILj100EEvv]] = linkonce_odr hidden global [2 x i64] zeroinitializer
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// T0GEN-LABEL: define linkonce_odr void @_Z4loopILj0EEvv()
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// T0USE-LABEL: define linkonce_odr void @_Z4loopILj0EEvv()
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// T100GEN-LABEL: define linkonce_odr void @_Z4loopILj100EEvv()
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// T100USE-LABEL: define linkonce_odr void @_Z4loopILj100EEvv()
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template <unsigned N> void loop() {
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// ALL-NOT: ret
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// T0GEN: store {{.*}} @[[T0C]], i64 0, i64 0
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// T100GEN: store {{.*}} @[[T100C]], i64 0, i64 0
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// ALL-NOT: ret
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// T0GEN: store {{.*}} @[[T0C]], i64 0, i64 1
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// T0USE: br {{.*}} !prof ![[T01:[0-9]+]]
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// T100GEN: store {{.*}} @[[T100C]], i64 0, i64 1
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// T100USE: br {{.*}} !prof ![[T1001:[0-9]+]]
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for (unsigned I = 0; I < N; ++I) {}
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// ALL: ret
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}
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// T0USE-DAG: ![[T01]] = metadata !{metadata !"branch_weights", i32 1, i32 2}
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// T100USE-DAG: ![[T1001]] = metadata !{metadata !"branch_weights", i32 101, i32 2}
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int main(int argc, const char *argv[]) {
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loop<0>();
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loop<100>();
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return 0;
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}
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