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ir_to_mesa: Fix EmitCondCodes for boolean vars as condition.

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Fixes glsl-vs-if-bool.
This commit is contained in:
Eric Anholt 2010-06-28 12:16:03 -07:00
parent 854fd66cbb
commit cbe52c8012
1 changed files with 14 additions and 0 deletions
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14
src/mesa/shader/ir_to_mesa.cpp
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@ -1146,12 +1146,26 @@ void
ir_to_mesa_visitor::visit(ir_if *ir)
{
ir_to_mesa_instruction *cond_inst, *if_inst, *else_inst = NULL;
ir_to_mesa_instruction *prev_inst;
prev_inst = (ir_to_mesa_instruction *)this->instructions.get_tail();
ir->condition->accept(this);
assert(this->result.file != PROGRAM_UNDEFINED);
if (ctx->Shader.EmitCondCodes) {
cond_inst = (ir_to_mesa_instruction *)this->instructions.get_tail();
/* See if we actually generated any instruction for generating
* the condition. If not, then cook up a move to a temp so we
* have something to set cond_update on.
*/
if (cond_inst == prev_inst) {
ir_to_mesa_src_reg temp = get_temp(glsl_type::bool_type);
cond_inst = ir_to_mesa_emit_op1(ir->condition, OPCODE_MOV,
ir_to_mesa_dst_reg_from_src(temp),
result);
}
cond_inst->cond_update = GL_TRUE;
if_inst = ir_to_mesa_emit_op1(ir->condition,