From 598d144cef412f114bddccc5d3c428682b41a7c2 Mon Sep 17 00:00:00 2001 From: Kenneth Graunke Date: Tue, 10 Feb 2015 03:36:48 -0800 Subject: [PATCH] i915c: Use the actual MIN instruction. Matt Turner noticed that the hardware has always had a MIN instruction, but the driver always used MAX+MOV for no apparent reason. This should cut an instruction, and a temporary, allowing more programs to run in hardware. Signed-off-by: Kenneth Graunke Reviewed-by: Ian Romanick Reviewed-by: Matt Turner --- src/mesa/drivers/dri/i915/i915_fragprog.c | 16 +--------------- 1 file changed, 1 insertion(+), 15 deletions(-) diff --git a/src/mesa/drivers/dri/i915/i915_fragprog.c b/src/mesa/drivers/dri/i915/i915_fragprog.c index 96fdd3c2c3f..d42da5a6b61 100644 --- a/src/mesa/drivers/dri/i915/i915_fragprog.c +++ b/src/mesa/drivers/dri/i915/i915_fragprog.c @@ -671,21 +671,7 @@ upload_program(struct i915_fragment_program *p) break; case OPCODE_MIN: - src0 = src_vector(p, &inst->SrcReg[0], program); - src1 = src_vector(p, &inst->SrcReg[1], program); - tmp = i915_get_utemp(p); - flags = get_result_flags(inst); - - i915_emit_arith(p, - A0_MAX, - tmp, flags & A0_DEST_CHANNEL_ALL, 0, - negate(src0, 1, 1, 1, 1), - negate(src1, 1, 1, 1, 1), 0); - - i915_emit_arith(p, - A0_MOV, - get_result_vector(p, inst), - flags, 0, negate(tmp, 1, 1, 1, 1), 0, 0); + EMIT_2ARG_ARITH(A0_MIN); break; case OPCODE_MOV: -- 2.30.2