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llvm-project/clang/test/Profile/c-linkage-available_externa...

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PGO: Don't define instrumentation data available_externally Variables with available_externally linkage can be dropped at will. This causes link errors, since there are still references to the instrumentation! linkonce_odr is almost equivalent, so use that instead. As a drive-by fix (I don't have an Elf system, so I'm not sure how to write a testcase), use linkonce linkage for the instrumentation of extern_weak functions. <rdar://problem/15943240> llvm-svn: 204408
2014-03-21 06:50:08 +08:00
// Make sure instrementation data from available_externally functions doesn't
// get thrown out.
// RUN: %clang_cc1 -O2 -triple x86_64-apple-macosx10.9 -main-file-name c-linkage-available_externally.c %s -o - -emit-llvm -fprofile-instr-generate | FileCheck %s
InstrProf: Set profile data to visibility hidden 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
2014-05-16 09:24:00 +08:00
// CHECK: @__llvm_profile_name_foo = linkonce_odr hidden constant [3 x i8] c"foo", section "__DATA,__llvm_prf_names", align 1
InstrProf: Use LLVM's -instrprof pass for profiling The logic for lowering profiling counters has been moved to an LLVM pass. Emit the intrinsics rather than duplicating the whole pass in clang. llvm-svn: 223683
2014-12-09 03:04:51 +08:00
// CHECK: @__llvm_profile_counters_foo = linkonce_odr hidden global [1 x i64] zeroinitializer, section "__DATA,__llvm_prf_cnts", align 8
Test case updates for explicit type parameter to the gep operator llvm-svn: 232187
2015-03-14 02:21:46 +08:00
// CHECK: @__llvm_profile_data_foo = linkonce_odr hidden constant { i32, i32, i64, i8*, i64* } { i32 3, i32 1, i64 {{[0-9]+}}, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @__llvm_profile_name_foo, i32 0, i32 0), i64* getelementptr inbounds ([1 x i64], [1 x i64]* @__llvm_profile_counters_foo, i32 0, i32 0) }, section "__DATA,__llvm_prf_data", align 8
PGO: Don't define instrumentation data available_externally Variables with available_externally linkage can be dropped at will. This causes link errors, since there are still references to the instrumentation! linkonce_odr is almost equivalent, so use that instead. As a drive-by fix (I don't have an Elf system, so I'm not sure how to write a testcase), use linkonce linkage for the instrumentation of extern_weak functions. <rdar://problem/15943240> llvm-svn: 204408
2014-03-21 06:50:08 +08:00
inline int foo(void) { return 1; }
int main(void) {
return foo();
}