RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2025-01-31 20:51:52 +01:00
Code Issues Projects Releases Wiki Activity

[Hashing] hash_1to3_bytes - avoid trunc(v + zext(x)) NFCI.

Browse Source 
MSVC complains about the extension to uint64_t for an addition followed by truncation back to uint32_t - add an explicit uint32_t cast to avoid this.

llvm-svn: 366020
This commit is contained in:
Simon Pilgrim 2019-07-14 15:05:05 +00:00
parent cf01f986a7
commit f135b9c58b
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
include/llvm/ADT/Hashing.h
View File

@ -191,7 +191,7 @@ inline uint64_t hash_1to3_bytes(const char *s, size_t len, uint64_t seed) {
uint8_t b = s[len >> 1];
uint8_t c = s[len - 1];
uint32_t y = static_cast<uint32_t>(a) + (static_cast<uint32_t>(b) << 8);
uint32_t z = len + (static_cast<uint32_t>(c) << 2);
uint32_t z = static_cast<uint32_t>(len) + (static_cast<uint32_t>(c) << 2);
return shift_mix(y * k2 ^ z * k3 ^ seed) * k2;
}