[PGO]: Do not update Data->Value field during profile write.
The profile reader no longer depends on this field to be updated and point
to owning func's vp data. The VP data also no longer needs to be allocated
in a contiguous memory space.
Differential Revision: http://reviews.llvm.org/D15258
llvm-svn: 256543
diff --git a/compiler-rt/lib/profile/InstrProfilingFile.c b/compiler-rt/lib/profile/InstrProfilingFile.c
index 7f2923c..a803ba5 100644
--- a/compiler-rt/lib/profile/InstrProfilingFile.c
+++ b/compiler-rt/lib/profile/InstrProfilingFile.c
@@ -31,12 +31,16 @@
}
static int writeFile(FILE *File) {
- uint8_t *ValueDataBegin = NULL;
- const uint64_t ValueDataSize =
- __llvm_profile_gather_value_data(&ValueDataBegin);
- int r = llvmWriteProfData(fileWriter, File, ValueDataBegin, ValueDataSize);
- free(ValueDataBegin);
- return r;
+ const char *BufferSzStr = 0;
+ uint64_t ValueDataSize = 0;
+ struct ValueProfData **ValueDataArray =
+ __llvm_profile_gather_value_data(&ValueDataSize);
+ FreeHook = &free;
+ CallocHook = &calloc;
+ BufferSzStr = getenv("LLVM_VP_BUFFER_SIZE");
+ if (BufferSzStr && BufferSzStr[0])
+ VPBufferSize = atoi(BufferSzStr);
+ return llvmWriteProfData(fileWriter, File, ValueDataArray, ValueDataSize);
}
static int writeFileWithName(const char *OutputName) {