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glsl: Fix DIV_TO_MUL_RCP lowering for uint result types.

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f2i results in an int/ivec; we need i2u to get a uint/uvec.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Kenneth Graunke 2011-06-14 22:47:04 -07:00
parent 8eb9753944
commit ed92b91212
1 changed files with 7 additions and 2 deletions
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9
src/glsl/lower_instructions.cpp
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@ -168,8 +168,13 @@ lower_instructions_visitor::div_to_mul_rcp(ir_expression *ir)
op0 = new(ir) ir_expression(ir_binop_mul, vec_type, op0, op1);
ir->operation = ir_unop_f2i;
ir->operands[0] = op0;
if (ir->operands[1]->type->base_type == GLSL_TYPE_INT) {
ir->operation = ir_unop_f2i;
ir->operands[0] = op0;
} else {
ir->operation = ir_unop_i2u;
ir->operands[0] = new(ir) ir_expression(ir_unop_f2i, op0);
}
ir->operands[1] = NULL;
}