freedreno/ir3/sched: avoid scheduling outputs

[mesa.git] / src / freedreno / ir3 / ir3.h

diff --git a/src/freedreno/ir3/ir3.h b/src/freedreno/ir3/ir3.h
index 9ec324e4e4a44ef0ebcdf87cf9a5e131f48e0fc2..247dca19564fa5002edd1ca2853efd59d475eb01 100644 (file)
--- a/src/freedreno/ir3/ir3.h
+++ b/src/freedreno/ir3/ir3.h
@@ -846,6 +846,20 @@ static inline unsigned dest_regs(struct ir3_instruction *instr)
        return util_last_bit(instr->regs[0]->wrmask);
 }
 
+static inline bool
+writes_gpr(struct ir3_instruction *instr)
+{
+       if (dest_regs(instr) == 0)
+               return false;
+       /* is dest a normal temp register: */
+       struct ir3_register *reg = instr->regs[0];
+       debug_assert(!(reg->flags & (IR3_REG_CONST | IR3_REG_IMMED)));
+       if ((reg_num(reg) == REG_A0) ||
+                       (reg->num == regid(REG_P0, 0)))
+               return false;
+       return true;
+}
+
 static inline bool writes_addr0(struct ir3_instruction *instr)
 {
        if (instr->regs_count > 0) {