Mercurial > hg > truffle
diff src/os_cpu/windows_x86/vm/assembler_windows_x86_32.cpp @ 219:ab65a4c9b2e8
6708714: Optimize long LShift on 32-bits x86
Summary: For small (1-3 bits) left long shifts in 32-bits VM use sets of add+addc instructions instead of shld+shl on new AMD cpus.
Reviewed-by: never
Contributed-by: shrinivas.joshi@amd.com
author | kvn |
---|---|
date | Mon, 23 Jun 2008 14:11:12 -0700 |
parents | 7793bd37a336 |
children | d1605aabd0a1 |