From ab7a9b4538355946c1947546d2b9f2b10724e335 Mon Sep 17 00:00:00 2001
From: Emma Anholt <emma@anholt.net>
Date: Wed, 22 Feb 2023 11:56:08 -0800
Subject: [PATCH] glsl/opt_algebraic: Drop rcp optimizations.
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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>
---
 src/compiler/glsl/opt_algebraic.cpp | 20 --------------------
 1 file changed, 20 deletions(-)

diff --git a/src/compiler/glsl/opt_algebraic.cpp b/src/compiler/glsl/opt_algebraic.cpp
index 8949fa2..bc9c96b 100644
--- a/src/compiler/glsl/opt_algebraic.cpp
+++ b/src/compiler/glsl/opt_algebraic.cpp
@@ -696,26 +696,6 @@ ir_algebraic_visitor::handle_expression(ir_expression *ir)
 
       break;
 
-   case ir_unop_rcp:
-      if (op_expr[0] && op_expr[0]->operation == ir_unop_rcp)
-	 return op_expr[0]->operands[0];
-
-      if (op_expr[0] && (op_expr[0]->operation == ir_unop_exp2 ||
-                         op_expr[0]->operation == ir_unop_exp)) {
-         return new(mem_ctx) ir_expression(op_expr[0]->operation, ir->type,
-                                           neg(op_expr[0]->operands[0]));
-      }
-
-      if (op_expr[0] && op_expr[0]->operation == ir_unop_rsq)
-         return sqrt(op_expr[0]->operands[0]);
-
-      /* As far as we know, all backends are OK with rsq. */
-      if (op_expr[0] && op_expr[0]->operation == ir_unop_sqrt) {
-	 return rsq(op_expr[0]->operands[0]);
-      }
-
-      break;
-
    case ir_triop_fma:
       /* Operands are op0 * op1 + op2. */
       if (is_vec_zero(op_const[0]) || is_vec_zero(op_const[1])) {
-- 
2.7.4