fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-05-06 05:08:08 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

mesa/prog: relative offsets into constbufs are not constant

Browse source 
The optimization logic relies on being able to read out constbuf values
from program parameters. However that only works if there's no relative
addressing involved.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=91173
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: "10.5 10.6" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Chris Forbes <chrisf@ijw.co.nz>
This commit is contained in:
Ilia Mirkin 2015-07-01 18:22:23 -04:00
parent fe2b748a39
commit 197a19f9ed
1 changed files with 2 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
src/mesa/program/prog_opt_constant_fold.c
View file

@ -38,6 +38,8 @@ src_regs_are_constant(const struct prog_instruction *inst, unsigned num_srcs)
for (i = 0; i < num_srcs; i++) {
if (inst->SrcReg[i].File != PROGRAM_CONSTANT)
return false;
if (inst->SrcReg[i].RelAddr)
return false;
}
return true;