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Revert "Avoid size_t -> unsigned conversion in MathExtras.h header. NFC". 

llvm-svn: 237680
This commit is contained in:
Pawel Bylica 2015-05-19 10:51:24 +00:00
parent 0d0ec9f2d7
commit 5cdda674c6
1 changed files with 4 additions and 4 deletions
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8
llvm/include/llvm/Support/MathExtras.h
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@ -465,26 +465,26 @@ inline double Log2(double Value) {
/// Log2_32 - This function returns the floor log base 2 of the specified value,
/// -1 if the value is zero. (32 bit edition.)
/// Ex. Log2_32(32) == 5, Log2_32(1) == 0, Log2_32(0) == -1, Log2_32(6) == 2
inline size_t Log2_32(uint32_t Value) {
inline unsigned Log2_32(uint32_t Value) {
return 31 - countLeadingZeros(Value);
}
/// Log2_64 - This function returns the floor log base 2 of the specified value,
/// -1 if the value is zero. (64 bit edition.)
inline size_t Log2_64(uint64_t Value) {
inline unsigned Log2_64(uint64_t Value) {
return 63 - countLeadingZeros(Value);
}
/// Log2_32_Ceil - This function returns the ceil log base 2 of the specified
/// value, 32 if the value is zero. (32 bit edition).
/// Ex. Log2_32_Ceil(32) == 5, Log2_32_Ceil(1) == 0, Log2_32_Ceil(6) == 3
inline size_t Log2_32_Ceil(uint32_t Value) {
inline unsigned Log2_32_Ceil(uint32_t Value) {
return 32 - countLeadingZeros(Value - 1);
}
/// Log2_64_Ceil - This function returns the ceil log base 2 of the specified
/// value, 64 if the value is zero. (64 bit edition.)
inline size_t Log2_64_Ceil(uint64_t Value) {
inline unsigned Log2_64_Ceil(uint64_t Value) {
return 64 - countLeadingZeros(Value - 1);
}