r279458 - in /trunk/gcc: ChangeLog config/gcn/g...

[ams@gcc.gnu.org]

Author: ams
Date: Tue Dec 17 13:01:16 2019
New Revision: 279458

URL: https://gcc.gnu.org/viewcvs?rev=279458&root=gcc&view=rev
Log:
Add clz and ctz for amdgcn

2019-12-17  Andrew Stubbs  <ams@codesourcery.com>

	gcc/
	* config/gcn/gcn.h (CLZ_DEFINED_VALUE_AT_ZERO): Define.
	(CTZ_DEFINED_VALUE_AT_ZERO): Define.
	* config/gcn/gcn.md (s_mnemonic): Add clz and ctz.
	(expander): Likewise.
	(countzeros): New code iterator.
	(<expander>si2): New insn pattern.
	(<expander>di2): New insn pattern.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/gcn/gcn.h
    trunk/gcc/config/gcn/gcn.md