Commit Graph

3 Commits

Author SHA1 Message Date
Mircea Trofin 90347ab96f [NFC] Removed unused prefixes in CodeGen/AMDGPU
This covers tests starting with m-r.

Differential Revision: https://reviews.llvm.org/D94181
2021-01-06 10:32:44 -08:00
Matt Arsenault 74fd7600d2 AMDGPU: Handle partial shift reduction for variable shifts
If the variable shift amount has known bits, we can still reduce
the shift.

llvm-svn: 331917
2018-05-09 20:52:54 +00:00
Matt Arsenault b143d9a5ea AMDGPU: Partially shrink 64-bit shifts if reduced to 16-bit
This is an extension of an existing combine to reduce wider
shls if the result fits in the final result type. This
introduces the same combine, but reduces the shift to a middle
sized type to avoid the slow 64-bit shift.

llvm-svn: 331916
2018-05-09 20:52:43 +00:00