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 <kenn...@whitecape.org> Cc: Stéphane Marchesin <marc...@chromium.org> --- src/gallium/drivers/i915/i915_fpc_translate.c | 16 +--------------- 1 file changed, 1 insertion(+), 15 deletions(-) diff --git a/src/gallium/drivers/i915/i915_fpc_translate.c b/src/gallium/drivers/i915/i915_fpc_translate.c index 4f5fdd8..b74f823 100644 --- a/src/gallium/drivers/i915/i915_fpc_translate.c +++ b/src/gallium/drivers/i915/i915_fpc_translate.c @@ -764,21 +764,7 @@ i915_translate_instruction(struct i915_fp_compile *p, break; case TGSI_OPCODE_MIN: - src0 = src_vector(p, &inst->Src[0], fs); - src1 = src_vector(p, &inst->Src[1], fs); - 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->Dst[0]), - flags, 0, negate(tmp, 1, 1, 1, 1), 0, 0); + emit_simple_arith(p, inst, A0_MIN, 2, fs); break; case TGSI_OPCODE_MOV: -- 2.2.2 _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev