From 2e9f4eadfbe8e1eae657c268cb31515a872eceb4 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Mon, 9 Feb 2015 16:53:10 +1000 Subject: [PATCH] glsl: add lowering for double divide to rcp/mul It looks like no hw does div anyways, so we should just lower at the GLSL level. Reviewed-by: Ilia Mirkin Signed-off-by: Dave Airlie --- src/glsl/lower_instructions.cpp | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/src/glsl/lower_instructions.cpp b/src/glsl/lower_instructions.cpp index e8a69e72ea3..4779de059ad 100644 --- a/src/glsl/lower_instructions.cpp +++ b/src/glsl/lower_instructions.cpp @@ -199,7 +199,7 @@ 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()); + assert(ir->operands[1]->type->is_float() || ir->operands[1]->type->is_double()); /* New expression for the 1.0 / op1 */ ir_rvalue *expr; @@ -327,7 +327,7 @@ 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(DIV_TO_MUL_RCP) && ir->type->is_float()) + if (lowering(DIV_TO_MUL_RCP) && (ir->type->is_float() || ir->type->is_double())) div_to_mul_rcp(div_expr); ir_expression *const floor_expr = @@ -1014,7 +1014,8 @@ lower_instructions_visitor::visit_leave(ir_expression *ir) case ir_binop_div: if (ir->operands[1]->type->is_integer() && lowering(INT_DIV_TO_MUL_RCP)) int_div_to_mul_rcp(ir); - else if (ir->operands[1]->type->is_float() && lowering(DIV_TO_MUL_RCP)) + else if ((ir->operands[1]->type->is_float() || + ir->operands[1]->type->is_double()) && lowering(DIV_TO_MUL_RCP)) div_to_mul_rcp(ir); break;