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[PGO] Introduce alignment macro for instr-prof control data(NFC)

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llvm-svn: 253893
This commit is contained in:
Xinliang David Li 2015-11-23 18:02:59 +00:00
parent 2d664e8ff0
commit 0b39dbc2f8
2 changed files with 4 additions and 2 deletions
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4
include/llvm/ProfileData/InstrProfData.inc
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@ -183,7 +183,6 @@ COVMAP_FUNC_RECORD(const uint64_t, llvm::Type::getInt64Ty(Ctx), FuncHash, \
#define INSTR_PROF_SIMPLE_CONCAT(x,y) x ## y
#define INSTR_PROF_CONCAT(x,y) INSTR_PROF_SIMPLE_CONCAT(x,y)
/* Magic number to detect file format and endianness.
* Use 255 at one end, since no UTF-8 file can use that character. Avoid 0,
* so that utilities, like strings, don't grab it as a string. 129 is also
@ -230,6 +229,9 @@ COVMAP_FUNC_RECORD(const uint64_t, llvm::Type::getInt64Ty(Ctx), FuncHash, \
#define INSTR_PROF_VALUE_PROF_FUNC_STR \
INSTR_PROF_QUOTE(INSTR_PROF_VALUE_PROF_FUNC)
/* InstrProfile per-function control data alignment. */
#define INSTR_PROF_DATA_ALIGNMENT 8
/* The data structure that represents a tracked value by the
* value profiler.
*/

2
lib/Transforms/Instrumentation/InstrProfiling.cpp
View File

@ -344,7 +344,7 @@ InstrProfiling::getOrCreateRegionCounters(InstrProfIncrementInst *Inc) {
getVarName(Inc, getInstrProfDataVarPrefix()));
Data->setVisibility(NamePtr->getVisibility());
Data->setSection(getDataSection());
Data->setAlignment(8);
Data->setAlignment(INSTR_PROF_DATA_ALIGNMENT);
Data->setComdat(ProfileVarsComdat);
PD.RegionCounters = CounterPtr;