[Profile] Implement new API __llvm_profile_dump

The API is intended to be used by user to do fine
grained (per-region) control of profile dumping.

Differential Revision: http://reviews.llvm.org/D23106




git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@278092 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 11 insertions, 0 deletions

diff --git a/lib/profile/InstrProfiling.c b/lib/profile/InstrProfiling.c
index b7ba25f30..1dcd05b64 100644
--- a/lib/profile/InstrProfiling.c
+++ b/lib/profile/InstrProfiling.c
@@ -27,6 +27,16 @@ COMPILER_RT_VISIBILITY uint64_t __llvm_profile_get_magic(void) {
                                             : (INSTR_PROF_RAW_MAGIC_32);
 }
 
+static unsigned ProfileDumped = 0;
+
+COMPILER_RT_VISIBILITY unsigned lprofProfileDumped() {
+  return ProfileDumped;
+}
+
+COMPILER_RT_VISIBILITY void lprofSetProfileDumped() {
+  ProfileDumped = 1;
+}
+
 /* Return the number of bytes needed to add to SizeInBytes to make it
  *   the result a multiple of 8.
  */
@@ -68,4 +78,5 @@ COMPILER_RT_VISIBILITY void __llvm_profile_reset_counters(void) {
       }
     }
   }
+  ProfileDumped = 0;
 }