derek.holloway
7502bf64a4
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45 lines
2.0 KiB
C++
45 lines
2.0 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-instrument=clang > %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-instrument-use=clang -fprofile-instrument-use-path=%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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// The linkage can be target dependent, so accept all linkage here,
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// the linkage tests for different target are in llvm/test/Instrumentation/InstrProfiling/profiling.ll
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// T0GEN: @[[T0C:__profc__Z4loopILj0EEvv]] = {{.*}} global [2 x i64] zeroinitializer
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// T100GEN: @[[T100C:__profc__Z4loopILj100EEvv]] = {{.*}} 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]]
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// T100GEN: store {{.*}} @[[T100C]]
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// ALL-NOT: ret
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// T0GEN: store {{.*}} @[[T0C]], i32 0, i32 1
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// T0USE: br {{.*}} !prof ![[T01:[0-9]+]]
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// T100GEN: store {{.*}} @[[T100C]], i32 0, i32 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]] = !{!"branch_weights", i32 1, i32 2}
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// T100USE-DAG: ![[T1001]] = !{!"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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