KonstantinSeurer
/
mesa
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

glsl/lower_instructions: Handle fp16 for FDIV_TO_MUL_RCP 

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3929>
This commit is contained in:
Kristian H. Kristensen 2020-03-04 11:58:58 -08:00 committed by Marge Bot
parent 4fcac46cbd
commit e3cc81e86c
1 changed files with 5 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
src/compiler/glsl/lower_instructions.cpp
View File

@ -63,7 +63,8 @@
* reciprocal. By breaking the operation down, constant reciprocals
* can get constant folded.
*
* FDIV_TO_MUL_RCP only lowers single-precision floating point division;
* FDIV_TO_MUL_RCP lowers single-precision and half-precision
* floating point division;
* DDIV_TO_MUL_RCP only lowers double-precision floating point division.
* DIV_TO_MUL_RCP is a convenience macro that sets both flags.
* INT_DIV_TO_MUL_RCP handles the integer case, converting to and from floating
@ -209,7 +210,7 @@ lower_instructions_visitor::sub_to_add_neg(ir_expression *ir)
void
lower_instructions_visitor::div_to_mul_rcp(ir_expression *ir)
{
assert(ir->operands[1]->type->is_float() || ir->operands[1]->type->is_double());
assert(ir->operands[1]->type->is_float_16_32_64());
/* New expression for the 1.0 / op1 */
ir_rvalue *expr;
@ -342,7 +343,7 @@ lower_instructions_visitor::mod_to_floor(ir_expression *ir)
/* Don't generate new IR that would need to be lowered in an additional
* pass.
*/
if ((lowering(FDIV_TO_MUL_RCP) && ir->type->is_float()) ||
if ((lowering(FDIV_TO_MUL_RCP) && ir->type->is_float_16_32()) ||
(lowering(DDIV_TO_MUL_RCP) && ir->type->is_double()))
div_to_mul_rcp(div_expr);
@ -1773,7 +1774,7 @@ lower_instructions_visitor::visit_leave(ir_expression *ir)
case ir_binop_div:
if (ir->operands[1]->type->is_integer_32() && lowering(INT_DIV_TO_MUL_RCP))
int_div_to_mul_rcp(ir);
else if ((ir->operands[1]->type->is_float() && lowering(FDIV_TO_MUL_RCP)) ||
else if ((ir->operands[1]->type->is_float_16_32() && lowering(FDIV_TO_MUL_RCP)) ||
(ir->operands[1]->type->is_double() && lowering(DDIV_TO_MUL_RCP)))
div_to_mul_rcp(ir);
break;