forked from OSchip/llvm-project
59 lines
2.3 KiB
C++
59 lines
2.3 KiB
C++
// Tests for instrumentation of C++11 lambdas
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// RUN: %clang_cc1 -x c++ %s -triple %itanium_abi_triple -main-file-name cxx-lambda.cpp -std=c++11 -o - -emit-llvm -fprofile-instrument=clang > %tgen
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// RUN: FileCheck --input-file=%tgen -check-prefix=PGOGEN %s
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// RUN: FileCheck --input-file=%tgen -check-prefix=LMBGEN %s
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// RUN: llvm-profdata merge %S/Inputs/cxx-lambda.proftext -o %t.profdata
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// RUN: %clang_cc1 -x c++ %s -triple %itanium_abi_triple -main-file-name cxx-lambda.cpp -std=c++11 -o - -emit-llvm -fprofile-instrument-use-path=%t.profdata > %tuse
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// RUN: FileCheck --input-file=%tuse -check-prefix=PGOUSE %s
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// RUN: FileCheck --input-file=%tuse -check-prefix=LMBUSE %s
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// PGOGEN: @[[LWC:__profc__Z7lambdasv]] = private global [4 x i64] zeroinitializer
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// PGOGEN: @[[MAC:__profc_main]] = private global [1 x i64] zeroinitializer
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// LMBGEN: @[[LFC:"__profc_cxx_lambda.cpp__ZZ7lambdasvENK3\$_0clEi"]] = private global [3 x i64] zeroinitializer
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// PGOGEN-LABEL: define {{.*}}void @_Z7lambdasv()
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// PGOUSE-LABEL: define {{.*}}void @_Z7lambdasv()
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// PGOGEN: store {{.*}} @[[LWC]], i64 0, i64 0
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void lambdas() {
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int i = 1;
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// LMBGEN-LABEL: define internal{{( [0-9_a-z]*cc)?( zeroext)?}} i1 @"_ZZ7lambdasvENK3$_0clEi"(
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// LMBUSE-LABEL: define internal{{( [0-9_a-z]*cc)?( zeroext)?}} i1 @"_ZZ7lambdasvENK3$_0clEi"(
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// LMBGEN: store {{.*}} @[[LFC]], i64 0, i64 0
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auto f = [&i](int k) {
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// LMBGEN: store {{.*}} @[[LFC]], i64 0, i64 1
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// LMBUSE: br {{.*}} !prof ![[LF1:[0-9]+]]
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if (i > 0) {}
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// LMBGEN: store {{.*}} @[[LFC]], i64 0, i64 2
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// LMBUSE: br {{.*}} !prof ![[LF2:[0-9]+]]
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return k && i;
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};
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// PGOGEN: store {{.*}} @[[LWC]], i64 0, i64 1
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// PGOUSE: br {{.*}} !prof ![[LW1:[0-9]+]]
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if (i) {}
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// PGOGEN: store {{.*}} @[[LWC]], i64 0, i64 2
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// PGOUSE: br {{.*}} !prof ![[LW2:[0-9]+]]
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for (i = 0; i < 10; ++i)
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f(9 - i);
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// PGOGEN: store {{.*}} @[[LWC]], i64 0, i64 3
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// PGOUSE: br {{.*}} !prof ![[LW3:[0-9]+]]
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if (i) {}
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}
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// PGOUSE-DAG: ![[LW1]] = !{!"branch_weights", i32 2, i32 1}
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// PGOUSE-DAG: ![[LW2]] = !{!"branch_weights", i32 11, i32 2}
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// PGOUSE-DAG: ![[LW3]] = !{!"branch_weights", i32 2, i32 1}
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// LMBUSE-DAG: ![[LF1]] = !{!"branch_weights", i32 10, i32 2}
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// LMBUSE-DAG: ![[LF2]] = !{!"branch_weights", i32 10, i32 2}
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int main(int argc, const char *argv[]) {
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lambdas();
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return 0;
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}
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