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Don't inline get[S|U]LEB128Size() until they are proved to be hot.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201939 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Logan Chien
2014-02-22 15:39:39 +00:00
parent 80668d18e8
commit 3c288fc8e7
3 changed files with 47 additions and 21 deletions
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23
include/llvm/Support/LEB128.h
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@@ -91,29 +91,10 @@ inline uint64_t decodeULEB128(const uint8_t *p, unsigned *n = 0) {
}
/// Utility function to get the size of the ULEB128-encoded value.
inline unsigned getULEB128Size(uint64_t Value) {
unsigned Size = 0;
do {
Value >>= 7;
Size += sizeof(int8_t);
} while (Value);
return Size;
}
extern unsigned getULEB128Size(uint64_t Value);
/// Utility function to get the size of the SLEB128-encoded value.
inline unsigned getSLEB128Size(int64_t Value) {
unsigned Size = 0;
int Sign = Value >> (8 * sizeof(Value) - 1);
bool IsMore;
do {
unsigned Byte = Value & 0x7f;
Value >>= 7;
IsMore = Value != Sign || ((Byte ^ Sign) & 0x40) != 0;
Size += sizeof(int8_t);
} while (IsMore);
return Size;
}
extern unsigned getSLEB128Size(int64_t Value);
} // namespace llvm