From efe55075b505e9d96ccde12f789ec8991273aef4 Mon Sep 17 00:00:00 2001
From: Christoph Bumiller <e0425955@student.tuwien.ac.at>
Date: Fri, 22 Feb 2013 19:10:20 +0100
Subject: [PATCH] nvc0/ir/emit: implement move to and logic ops on predicates

---
 .../drivers/nvc0/codegen/nv50_ir_emit_nvc0.cpp     | 45 ++++++++++++++++++++++
 1 file changed, 45 insertions(+)

diff --git a/src/gallium/drivers/nvc0/codegen/nv50_ir_emit_nvc0.cpp b/src/gallium/drivers/nvc0/codegen/nv50_ir_emit_nvc0.cpp
index b8e68eb..dc1fe99 100644
--- a/src/gallium/drivers/nvc0/codegen/nv50_ir_emit_nvc0.cpp
+++ b/src/gallium/drivers/nvc0/codegen/nv50_ir_emit_nvc0.cpp
@@ -676,6 +676,32 @@ CodeEmitterNVC0::emitNOT(Instruction *i)
 void
 CodeEmitterNVC0::emitLogicOp(const Instruction *i, uint8_t subOp)
 {
+   if (i->def(0).getFile() == FILE_PREDICATE) {
+      code[0] = 0x00000004 | (subOp << 30);
+      code[1] = 0x0c000000;
+
+      emitPredicate(i);
+
+      defId(i->def(0), 17);
+      srcId(i->src(0), 20);
+      if (i->src(0).mod == Modifier(NV50_IR_MOD_NOT)) code[0] |= 1 << 23;
+      srcId(i->src(1), 26);
+      if (i->src(1).mod == Modifier(NV50_IR_MOD_NOT)) code[0] |= 1 << 29;
+
+      if (i->defExists(1)) {
+         defId(i->def(1), 14);
+      } else {
+         code[0] |= 7 << 14;
+      }
+      // (a OP b) OP c
+      if (i->predSrc != 2 && i->srcExists(2)) {
+         code[1] |= subOp << 21;
+         srcId(i->src(2), 17);
+         if (i->src(2).mod == Modifier(NV50_IR_MOD_NOT)) code[0] |= 1 << 20;
+      } else {
+         code[1] |= 0x000e0000;
+      }
+   } else
    if (i->encSize == 8) {
       if (isLIMM(i->src(1), TYPE_U32)) {
          emitForm_A(i, HEX64(38000000, 00000002));
@@ -1525,6 +1551,25 @@ CodeEmitterNVC0::getSRegEncoding(const ValueRef& ref)
 void
 CodeEmitterNVC0::emitMOV(const Instruction *i)
 {
+   if (i->def(0).getFile() == FILE_PREDICATE) {
+      if (i->src(0).getFile() == FILE_GPR) {
+         code[0] = 0xfc01c003;
+         code[1] = 0x1a8e0000;
+         srcId(i->src(0), 20);
+      } else {
+         code[0] = 0x0001c004;
+         code[1] = 0x0c0e0000;
+         if (i->src(0).getFile() == FILE_IMMEDIATE) {
+            code[0] |= 7 << 20;
+            if (!i->getSrc(0)->reg.data.u32)
+               code[0] |= 1 << 23;
+         } else {
+            srcId(i->src(0), 20);
+         }
+      }
+      defId(i->def(0), 17);
+      emitPredicate(i);
+   } else
    if (i->src(0).getFile() == FILE_SYSTEM_VALUE) {
       uint8_t sr = getSRegEncoding(i->src(0));
 
-- 
2.7.4