The remove_extra_rounding_modes() optimization will remove duplicated
rounding mode changes.
v2:
- Fix bug in the rounding mode change (Alejandro)
v3:
- Fix rounding modes.
Signed-off-by: Samuel Iglesias Gonsálvez <sigles...@igalia.com>
---
src/intel/compiler/brw_fs.cpp | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/src/intel/compiler/brw_fs.cpp b/src/intel/compiler/brw_fs.cpp
index dfa6176340a..a5f5566951c 100644
--- a/src/intel/compiler/brw_fs.cpp
+++ b/src/intel/compiler/brw_fs.cpp
@@ -3449,9 +3449,20 @@ bool
fs_visitor::remove_extra_rounding_modes()
{
bool progress = false;
+ unsigned execution_mode =
this->nir->info.shader_float_controls_execution_mode;
+
+ brw_rnd_mode base_mode = BRW_RND_MODE_UNSPECIFIED;
+ if ((execution_mode & SHADER_ROUNDING_MODE_RTE_FP16) ||
+ (execution_mode & SHADER_ROUNDING_MODE_RTE_FP32) ||
+ (execution_mode & SHADER_ROUNDING_MODE_RTE_FP64))
+ base_mode = BRW_RND_MODE_RTNE;
+ if ((execution_mode & SHADER_ROUNDING_MODE_RTZ_FP16) ||
+ (execution_mode & SHADER_ROUNDING_MODE_RTZ_FP32) ||
+ (execution_mode & SHADER_ROUNDING_MODE_RTZ_FP64))
+ base_mode = BRW_RND_MODE_RTZ;
foreach_block (block, cfg) {
- brw_rnd_mode prev_mode = BRW_RND_MODE_UNSPECIFIED;
+ brw_rnd_mode prev_mode = base_mode;
foreach_inst_in_block_safe (fs_inst, inst, block) {
if (inst->opcode == SHADER_OPCODE_RND_MODE) {
--
2.19.1
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