InstrProfilingMergeFile.c revision 303235 
1/*===- InstrProfilingMergeFile.c - Profile in-process Merging  ------------===*\
2|*
3|*                     The LLVM Compiler Infrastructure
4|*
5|* This file is distributed under the University of Illinois Open Source
6|* License. See LICENSE.TXT for details.
7|*
8|*===----------------------------------------------------------------------===
9|* This file defines APIs needed to support in-process merging for profile data
10|* stored in files.
11\*===----------------------------------------------------------------------===*/
12
13#include "InstrProfiling.h"
14#include "InstrProfilingInternal.h"
15#include "InstrProfilingUtil.h"
16
17#define INSTR_PROF_VALUE_PROF_DATA
18#include "InstrProfData.inc"
19
20void (*VPMergeHook)(ValueProfData *,
21                    __llvm_profile_data *) = &lprofMergeValueProfData;
22
23/* Merge value profile data pointed to by SrcValueProfData into
24 * in-memory profile counters pointed by to DstData.  */
25void lprofMergeValueProfData(ValueProfData *SrcValueProfData,
26                             __llvm_profile_data *DstData) {
27  unsigned I, S, V, C;
28  InstrProfValueData *VData;
29  ValueProfRecord *VR = getFirstValueProfRecord(SrcValueProfData);
30  for (I = 0; I < SrcValueProfData->NumValueKinds; I++) {
31    VData = getValueProfRecordValueData(VR);
32    for (S = 0; S < VR->NumValueSites; S++) {
33      uint8_t NV = VR->SiteCountArray[S];
34      for (V = 0; V < NV; V++) {
35        for (C = 0; C < VData[V].Count; C++)
36          __llvm_profile_instrument_target(VData[V].Value, DstData, S);
37      }
38    }
39    VR = getValueProfRecordNext(VR);
40  }
41}
42