fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-05-07 07:08:04 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 4

intel/compiler: Relax mixed type restriction for saturating immediates

Browse source 
At the time of commit 7bc6e455e2 (i965: Add support for saturating
immediates.) we thought mixed type saturates would be impossible.  We
were only thinking about type converting moves from D to F, for
example.  However, type converting moves w/saturate from F to DF are
definitely possible.  This change minimally relaxes the restriction to
allow cases that I have been able trigger via piglit tests.

Fixes new piglit tests:
 - arb_gpu_shader_fp64/execution/built-in-functions/fs-sign-sat-neg-abs.shader_test
 - arb_gpu_shader_fp64/execution/built-in-functions/vs-sign-sat-neg-abs.shader_test

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
(cherry picked from commit f8e54d02f7)
This commit is contained in:
Ian Romanick 2018-06-26 19:21:43 -07:00 • committed by Dylan Baker
parent d68f2d7ede
commit c1027505f9
2 changed files with 22 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

13
src/intel/compiler/brw_fs.cpp
View file

@ -2364,10 +2364,19 @@ fs_visitor::opt_algebraic()
break;
if (inst->saturate) {
if (inst->dst.type != inst->src[0].type)
/* Full mixed-type saturates don't happen. However, we can end up
* with things like:
*
* mov.sat(8) g21<1>DF -1F
*
* Other mixed-size-but-same-base-type cases may also be possible.
*/
if (inst->dst.type != inst->src[0].type &&
inst->dst.type != BRW_REGISTER_TYPE_DF &&
inst->src[0].type != BRW_REGISTER_TYPE_F)
assert(!"unimplemented: saturate mixed types");
if (brw_saturate_immediate(inst->dst.type,
if (brw_saturate_immediate(inst->src[0].type,
&inst->src[0].as_brw_reg())) {
inst->saturate = false;
progress = true;

13
src/intel/compiler/brw_vec4.cpp
View file

@ -799,10 +799,19 @@ vec4_visitor::opt_algebraic()
break;
if (inst->saturate) {
if (inst->dst.type != inst->src[0].type)
/* Full mixed-type saturates don't happen. However, we can end up
* with things like:
*
* mov.sat(8) g21<1>DF -1F
*
* Other mixed-size-but-same-base-type cases may also be possible.
*/
if (inst->dst.type != inst->src[0].type &&
inst->dst.type != BRW_REGISTER_TYPE_DF &&
inst->src[0].type != BRW_REGISTER_TYPE_F)
assert(!"unimplemented: saturate mixed types");
if (brw_saturate_immediate(inst->dst.type,
if (brw_saturate_immediate(inst->src[0].type,
&inst->src[0].as_brw_reg())) {
inst->saturate = false;
progress = true;