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glsl: always do {CARRY,BORROW}_TO_ARITH lowering

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The only caller always sets these so here we just remove the
option to disable it.

Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19112>
This commit is contained in:
Timothy Arceri
2022-10-17 21:36:41 +11:00
committed by Marge Bot
parent 9f14c5dae2
commit e5102a406f
3 changed files with 4 additions and 23 deletions
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2
src/compiler/glsl/ir_optimization.h
View File

@@ -35,8 +35,6 @@ struct gl_shader_program;
/* Operations for lower_instructions() */
#define LDEXP_TO_ARITH 0x80
#define CARRY_TO_ARITH 0x100
#define BORROW_TO_ARITH 0x200
#define DOPS_TO_DFRAC 0x800
#define DFREXP_DLDEXP_TO_ARITH 0x1000
#define BIT_COUNT_TO_MATH 0x02000

23
src/compiler/glsl/lower_instructions.cpp
View File

@@ -31,8 +31,6 @@
*
* Currently supported transformations:
* - LDEXP_TO_ARITH
* - CARRY_TO_ARITH
* - BORROW_TO_ARITH
* - DOPS_TO_DFRAC
*
* LDEXP_TO_ARITH:
@@ -44,14 +42,6 @@
* Converts ir_binop_ldexp, ir_unop_frexp_sig, and ir_unop_frexp_exp to
* arithmetic and bit ops for double arguments.
*
* CARRY_TO_ARITH:
* ---------------
* Converts ir_carry into (x + y) < x.
*
* BORROW_TO_ARITH:
* ----------------
* Converts ir_borrow into (x < y).
*
* DOPS_TO_DFRAC:
* --------------
* Converts double trunc, ceil, floor, round to fract
@@ -1259,11 +1249,8 @@ lower_instructions_visitor::find_msb_to_float_cast(ir_expression *ir)
ir_expression *
lower_instructions_visitor::_carry(operand a, operand b)
{
if (lowering(CARRY_TO_ARITH))
return i2u(b2i(less(add(a, b),
a.val->clone(ralloc_parent(a.val), NULL))));
else
return carry(a, b);
return i2u(b2i(less(add(a, b),
a.val->clone(ralloc_parent(a.val), NULL))));
}
void
@@ -1449,13 +1436,11 @@ lower_instructions_visitor::visit_leave(ir_expression *ir)
break;
case ir_binop_carry:
if (lowering(CARRY_TO_ARITH))
carry_to_arith(ir);
carry_to_arith(ir);
break;
case ir_binop_borrow:
if (lowering(BORROW_TO_ARITH))
borrow_to_arith(ir);
borrow_to_arith(ir);
break;
case ir_unop_trunc: