nvc0/ir: allow iset to produce a boolean float

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>

src/gallium/drivers/nouveau/codegen/nv50_ir_emit_gk110.cpp

@@ -967,8 +967,8 @@ CodeEmitterGK110::emitSET(const CmpInstruction *i)
       code[0] = (code[0] & ~0xfc) | ((code[0] << 3) & 0xe0);
       if (i->defExists(1))
          defId(i->def(1), 2);
-   else
-      code[0] |= 0x1c;
+      else
+         code[0] |= 0x1c;
    } else {
       switch (i->sType) {
       case TYPE_F32: op2 = 0x000; op1 = 0x800; break;
@@ -990,8 +990,12 @@ CodeEmitterGK110::emitSET(const CmpInstruction *i)
       }
       FTZ_(3a);
 
-      if (i->dType == TYPE_F32)
-         code[1] |= 1 << 23;
+      if (i->dType == TYPE_F32) {
+         if (isFloatType(i->sType))
+            code[1] |= 1 << 23;
+         else
+            code[1] |= 1 << 15;
+      }
    }
    if (i->sType == TYPE_S32)
       code[1] |= 1 << 19;

src/gallium/drivers/nouveau/codegen/nv50_ir_emit_gm107.cpp

@@ -1830,6 +1830,7 @@ CodeEmitterGM107::emitISET()
    emitCond3(0x31, insn->setCond);
    emitField(0x30, 1, isSignedType(insn->sType));
    emitCC   (0x2f);
+   emitField(0x2c, 1, insn->dType == TYPE_F32);
    emitX    (0x2b);
    emitGPR  (0x08, insn->src(0));
    emitGPR  (0x00, insn->def(0));

src/gallium/drivers/nouveau/codegen/nv50_ir_emit_nvc0.cpp

@@ -1078,8 +1078,14 @@ CodeEmitterNVC0::emitSET(const CmpInstruction *i)
    if (!isFloatType(i->sType))
       lo = 0x3;
 
-   if (isFloatType(i->dType) || isSignedIntType(i->sType))
+   if (isSignedIntType(i->sType))
       lo |= 0x20;
+   if (isFloatType(i->dType)) {
+      if (isFloatType(i->sType))
+         lo |= 0x20;
+      else
+         lo |= 0x80;
+   }
 
    switch (i->op) {
    case OP_SET_AND: hi = 0x10000000; break;