OpenHarmony/third_party_mesa3d
2
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

glsl_to_tgsi: Skip useless comparison instructions.

Browse Source 
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
This commit is contained in:
Matt Turner
2015-12-01 17:09:55 -08:00
parent eca846e7ae
commit dd3c16c94b
1 changed files with 14 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
src/mesa/state_tracker/st_glsl_to_tgsi.cpp
View File

@@ -1655,7 +1655,13 @@ glsl_to_tgsi_visitor::visit(ir_expression *ir)
st_dst_reg temp_dst = st_dst_reg(temp);
st_src_reg temp1 = st_src_reg(temp), temp2 = st_src_reg(temp);
emit_asm(ir, TGSI_OPCODE_SEQ, st_dst_reg(temp), op[0], op[1]);
if (ir->operands[0]->type->is_boolean() &&
ir->operands[1]->as_constant() &&
ir->operands[1]->as_constant()->is_one()) {
emit_asm(ir, TGSI_OPCODE_MOV, st_dst_reg(temp), op[0]);
} else {
emit_asm(ir, TGSI_OPCODE_SEQ, st_dst_reg(temp), op[0], op[1]);
}
/* Emit 1-3 AND operations to combine the SEQ results. */
switch (ir->operands[0]->type->vector_elements) {
@@ -1708,7 +1714,13 @@ glsl_to_tgsi_visitor::visit(ir_expression *ir)
st_src_reg temp = get_temp(native_integers ?
glsl_type::uvec4_type :
glsl_type::vec4_type);
emit_asm(ir, TGSI_OPCODE_SNE, st_dst_reg(temp), op[0], op[1]);
if (ir->operands[0]->type->is_boolean() &&
ir->operands[1]->as_constant() &&
ir->operands[1]->as_constant()->is_zero()) {
emit_asm(ir, TGSI_OPCODE_MOV, st_dst_reg(temp), op[0]);
} else {
emit_asm(ir, TGSI_OPCODE_SNE, st_dst_reg(temp), op[0], op[1]);
}
if (native_integers) {
st_dst_reg temp_dst = st_dst_reg(temp);