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| author | Xinliang David Li <davidxl@google.com> | 2016-01-08 22:55:54 +0000 |
|---|---|---|
| committer | Xinliang David Li <davidxl@google.com> | 2016-01-08 22:55:54 +0000 |
| commit | 6ad1f2b89ae795158aa96558f06038ecb2fc4d4e (patch) | |
| tree | dad165489aaceba5351e6ce4275e0d177e0e2eb3 /lib/profile/InstrProfData.inc | |
| parent | ca3fff7b8c46e27247fe1ef813c51af6c5dda2a6 (diff) | |
[PGO] Introducing version mask macro/NFC (sync)
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@257225 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/profile/InstrProfData.inc')
| -rw-r--r-- | lib/profile/InstrProfData.inc | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/lib/profile/InstrProfData.inc b/lib/profile/InstrProfData.inc index 9fc4f546b..33c7d94ae 100644 --- a/lib/profile/InstrProfData.inc +++ b/lib/profile/InstrProfData.inc @@ -700,6 +700,14 @@ serializeValueProfDataFromRT(const ValueProfRuntimeRecord *Record, #define INSTR_PROF_INDEX_VERSION 3 #define INSTR_PROF_COVMAP_VERSION 0 +/* Profile version is always of type uint_64_t. Reserve the upper 8 bits in the + * version for other variants of profile. We set the lowest bit of the upper 8 + * bits (i.e. bit 56) to 1 to indicate if this is an IR-level instrumentaiton + * generated profile, and 0 if this is a Clang FE generated profile. +*/ +#define VARIANT_MASKS_ALL 0xff00000000000000ULL +#define GET_VERSION(V) ((V) & ~VARIANT_MASKS_ALL) + /* Runtime section names and name strings. */ #define INSTR_PROF_DATA_SECT_NAME __llvm_prf_data #define INSTR_PROF_NAME_SECT_NAME __llvm_prf_names |