KonstantinSeurer
/
mesa
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

pan/bi: Mark branches as having side effects 

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9164>
This commit is contained in:
Alyssa Rosenzweig 2021-02-19 09:17:48 -05:00 committed by Marge Bot
parent 11fbe5aeb5
commit 25da85880e
1 changed files with 7 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
src/panfrost/bifrost/bir.c
View File

@ -138,12 +138,17 @@ bi_next_clause(bi_context *ctx, pan_block *block, bi_clause *clause)
}
/* Does an instruction have a side effect not captured by its register
* destination? Applies to certain message-passing instructions only, used in
* dead code elimation */
* destination? Applies to certain message-passing instructions and branching
* only, used in dead code elimation. Branches are characterized by `last`
* which applies to them and some atomics, +BARRIER, +BLEND which implies no
* loss of generality */
bool
bi_side_effects(enum bi_opcode op)
{
if (bi_opcode_props[op].last)
return true;
switch (bi_opcode_props[op].message) {
case BIFROST_MESSAGE_NONE:
case BIFROST_MESSAGE_VARYING: