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i965/vec4: Add argument index and type checks to SEL saturate propagation.

Browse source 
SEL saturate propagation already implicitly relies on these
assumptions.

Reviewed-by: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>
This commit is contained in:
Francisco Jerez 2015-03-18 15:51:45 +02:00
parent 24073b2cd7
commit 7526ee36bc
1 changed files with 4 additions and 1 deletions
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5
src/mesa/drivers/dri/i965/brw_vec4_copy_propagation.cpp
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@ -343,7 +343,10 @@ try_copy_propagate(struct brw_context *brw, vec4_instruction *inst,
*/
switch(inst->opcode) {
case BRW_OPCODE_SEL:
if (inst->src[1].file != IMM ||
if (arg != 0 ||
inst->src[0].type != BRW_REGISTER_TYPE_F ||
inst->src[1].file != IMM ||
inst->src[1].type != BRW_REGISTER_TYPE_F ||
inst->src[1].fixed_hw_reg.dw1.f < 0.0 ||
inst->src[1].fixed_hw_reg.dw1.f > 1.0) {
return false;