fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2025-12-21 22:20:14 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

glsl/opt_algebraic: Drop log(exp(x)) -> x and exp(log(x)) -> x optimisations.

Browse source 
No change on freedreno shader-db.

Acked-by: Timothy Arceri <tarceri@itsqueeze.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21475>
This commit is contained in:
Emma Anholt 2023-02-22 11:34:57 -08:00 • committed by Marge Bot
parent 2bd0343ba0
commit d79061dba1
1 changed files with 0 additions and 31 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

31
src/compiler/glsl/opt_algebraic.cpp
View file

@ -327,32 +327,10 @@ ir_algebraic_visitor::handle_expression(ir_expression *ir)
}
break;
case ir_unop_exp:
if (op_expr[0] == NULL)
break;
if (op_expr[0]->operation == ir_unop_log) {
return op_expr[0]->operands[0];
}
break;
case ir_unop_log:
if (op_expr[0] == NULL)
break;
if (op_expr[0]->operation == ir_unop_exp) {
return op_expr[0]->operands[0];
}
break;
case ir_unop_exp2:
if (op_expr[0] == NULL)
break;
if (op_expr[0]->operation == ir_unop_log2) {
return op_expr[0]->operands[0];
}
if (op_expr[0]->operation == ir_binop_mul) {
for (int log2_pos = 0; log2_pos < 2; log2_pos++) {
ir_expression *log2_expr =
@ -368,15 +346,6 @@ ir_algebraic_visitor::handle_expression(ir_expression *ir)
}
break;
case ir_unop_log2:
if (op_expr[0] == NULL)
break;
if (op_expr[0]->operation == ir_unop_exp2) {
return op_expr[0]->operands[0];
}
break;
case ir_unop_f2i:
case ir_unop_f2u:
if (op_expr[0] && op_expr[0]->operation == ir_unop_trunc) {