intel/compiler: Expand size of the 'nr' field

Shaders containing software implementations of double-precision
operations can be very large such that we have more the 2^16 virtual
registers during optimization.

Move the 'nr' field to the union containing the immediate storage and
expand it to 32-bits.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

diff --git a/src/intel/compiler/brw_reg.h b/src/intel/compiler/brw_reg.h
index 46d66198a1da1edd5f7aa2c6cd68b32ae67cc5ce..4543d841c66030c45c2f0c9df4ca023c70c441a3 100644 (file)
--- a/src/intel/compiler/brw_reg.h
+++ b/src/intel/compiler/brw_reg.h
@@ -221,15 +221,15 @@ struct brw_reg {
          unsigned negate:1;             /* source only */
          unsigned abs:1;                /* source only */
          unsigned address_mode:1;       /* relative addressing, hopefully! */
-         unsigned pad0:1;
+         unsigned pad0:17;
          unsigned subnr:5;              /* :1 in align16 */
-         unsigned nr:16;
       };
       uint32_t bits;
    };
 
    union {
       struct {
+         unsigned nr;
          unsigned swizzle:8;      /* src only, align16 only */
          unsigned writemask:4;    /* dest only, align16 only */
          int  indirect_offset:10; /* relative addressing offset */
@@ -251,8 +251,7 @@ struct brw_reg {
 static inline bool
 brw_regs_equal(const struct brw_reg *a, const struct brw_reg *b)
 {
-   const bool df = a->type == BRW_REGISTER_TYPE_DF && a->file == IMM;
-   return a->bits == b->bits && (df ? a->u64 == b->u64 : a->ud == b->ud);
+   return a->bits == b->bits && a->u64 == b->u64;
 }
 
 static inline bool