freedreno/ir3: skip virtual outputs in standalone compiler

Kills get added to the outputs list, to ensure they get scheduled.  But
they aren't *really* outputs so skip them in the header comment block.

Signed-off-by: Rob Clark <robclark@freedesktop.org>

src/gallium/drivers/freedreno/ir3/ir3_cmdline.c

@@ -69,6 +69,9 @@ static void dump_info(struct ir3_shader_variant *so, const char *str)
 			uint8_t regid;
 			if (!block->outputs[i])
 				continue;
+			/* kill shows up as a virtual output.. skip it! */
+			if (is_kill(block->outputs[i]))
+				continue;
 			regid = block->outputs[i]->regs[0]->num;
 			debug_printf("@out(r%d.%c)\tout%d\n",
 					(regid >> 2), "xyzw"[regid & 0x3], i);