summaryrefslogtreecommitdiff
path: root/src/mesa/drivers/dri/i965/brw_fs_cse.cpp
diff options
context:
space:
mode:
authorKenneth Graunke <kenneth@whitecape.org>2013-07-25 00:30:05 -0700
committerKenneth Graunke <kenneth@whitecape.org>2014-06-10 16:38:25 -0700
commit3a439534de6d5331c1ec436d23a1a909f87c4660 (patch)
treecd30e7fb82daea045b8555068fedac3548dfbffa /src/mesa/drivers/dri/i965/brw_fs_cse.cpp
parent2c9a1518a104139f24f570ba4c134c2fb7ecf960 (diff)
i965/fs: Allow CSE on math opcodes on Gen6+.
total instructions in shared programs: 2081469 -> 2081248 (-0.01%) instructions in affected programs: 22606 -> 22385 (-0.98%) No programs were hurt by this patch. Signed-off-by: Kenneth Graunke <kenneth@whitecape.org> Reviewed-by: Matt Turner <mattst88@gmail.com> Reviewed-by: Chris Forbes <chrisf@ijw.co.nz>
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_fs_cse.cpp')
-rw-r--r--src/mesa/drivers/dri/i965/brw_fs_cse.cpp11
1 files changed, 11 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs_cse.cpp b/src/mesa/drivers/dri/i965/brw_fs_cse.cpp
index 94f657dd21..e0e3935a4a 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_cse.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_cse.cpp
@@ -73,6 +73,17 @@ is_expression(const fs_inst *const inst)
case FS_OPCODE_CINTERP:
case FS_OPCODE_LINTERP:
return true;
+ case SHADER_OPCODE_RCP:
+ case SHADER_OPCODE_RSQ:
+ case SHADER_OPCODE_SQRT:
+ case SHADER_OPCODE_EXP2:
+ case SHADER_OPCODE_LOG2:
+ case SHADER_OPCODE_POW:
+ case SHADER_OPCODE_INT_QUOTIENT:
+ case SHADER_OPCODE_INT_REMAINDER:
+ case SHADER_OPCODE_SIN:
+ case SHADER_OPCODE_COS:
+ return inst->mlen == 0;
default:
return false;
}