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
59 lines
2.4 KiB
C++
59 lines
2.4 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-instr-generate > %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-instr-use=%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:__llvm_profile_counters__Z7lambdasv]] = hidden global [4 x i64] zeroinitializer
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// PGOGEN: @[[MAC:__llvm_profile_counters_main]] = hidden global [1 x i64] zeroinitializer
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// LMBGEN: @[[LFC:"__llvm_profile_counters__ZZ7lambdasvENK3\$_0clEi"]] = internal 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{{( zeroext)?}} i1 @"_ZZ7lambdasvENK3$_0clEi"(
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// LMBUSE-LABEL: define internal{{( zeroext)?}} i1 @"_ZZ7lambdasvENK3$_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]] = metadata !{metadata !"branch_weights", i32 2, i32 1}
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// PGOUSE-DAG: ![[LW2]] = metadata !{metadata !"branch_weights", i32 11, i32 2}
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// PGOUSE-DAG: ![[LW3]] = metadata !{metadata !"branch_weights", i32 2, i32 1}
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// LMBUSE-DAG: ![[LF1]] = metadata !{metadata !"branch_weights", i32 10, i32 2}
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// LMBUSE-DAG: ![[LF2]] = metadata !{metadata !"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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