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[profile] Add end-end test of vp for inline virtual functions 

Make sure inline virtual function's address is properly recorded and
dumped in raw profile so that value profiling does not loss tracking.
(Second part of the test will be enabled after the lowering bug is fixed
in LLVM)

llvm-svn: 271528
This commit is contained in:
Xinliang David Li 2016-06-02 16:24:21 +00:00
parent 66f6b65fed
commit 66703ebfe5
4 changed files with 43 additions and 0 deletions
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4
compiler-rt/test/profile/Inputs/instrprof-icall-promo.h Normal file
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struct A {
virtual int foo() { return 1; };
virtual int bar();
};

7
compiler-rt/test/profile/Inputs/instrprof-icall-promo_1.cc Normal file
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#include "instrprof-icall-promo.h"
A a;
A* ap = &a;
int ref(A* ap) { return ap->A::foo(); }

15
compiler-rt/test/profile/Inputs/instrprof-icall-promo_2.cc Normal file
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#include "instrprof-icall-promo.h"
extern int ref(A *);
int A::bar() { return 2; }
extern A *ap;
int test() {
for (int i = 0; i < 10000; i++) ap->foo();
return ref(ap);
}
int main() {
test();
return 0;
}

17
compiler-rt/test/profile/instrprof-icall-promo.test Normal file
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RUN: %clangxx_profgen -O2 -Xclang -fprofile-instrument=llvm -c -o %t.1.o %S/Inputs/instrprof-icall-promo_1.cc
RUN: %clangxx_profgen -O2 -Xclang -fprofile-instrument=llvm -c -o %t.2.o %S/Inputs/instrprof-icall-promo_2.cc
RUN: %clangxx_profgen -O2 -Xclang -fprofile-instrument=llvm %t.2.o %t.1.o -o %t.gen.1
RUN: LLVM_PROFILE_FILE=%t-icall.profraw %t.gen.1
RUN: llvm-profdata merge -o %t-icall.profdata %t-icall.profraw
RUN: %clangxx -O2 -Rpass=pgo-icall-prom -fprofile-instr-use=%t-icall.profdata -c -o %t.2.use.o %S/Inputs/instrprof-icall-promo_2.cc 2>&1 | FileCheck %s
RUN: %clangxx_profgen -O2 -Xclang -fprofile-instrument=llvm %t.1.o %t.2.o -o %t.gen.2
RUN: LLVM_PROFILE_FILE=%t-icall2.profraw %t.gen.2
RUN: llvm-profdata merge -o %t-icall2.profdata %t-icall2.profraw
# The following test will be re-enabled once a compiler bug is fixed.
#: %clangxx -O2 -Rpass=pgo-icall-prom -fprofile-instr-use=%t-icall2.profdata -c -o %t.2.use.o %S/Inputs/instrprof-icall-promo_2.cc 2>&1 | FileCheck %s
# CHECK: Promote indirect call to