Mesa (master): i965: Remove the "ARF" register file.

[Matt Turner]

Module: Mesa
Branch: master
Commit: b645913ff6c74228d8c05dd236a545ef2e734071
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=b645913ff6c74228d8c05dd236a545ef2e734071

Author: Matt Turner <mattst88 at gmail.com>
Date:   Fri Sep 27 17:37:51 2013 -0700

i965: Remove the "ARF" register file.

The registers in the architecture register file don't share much in
common, so there's no point in grouping them together. Use the HW_REG
class instead. The vec4 backend already does this.

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

---

 src/mesa/drivers/dri/i965/brw_fs.cpp           |    6 ------
 src/mesa/drivers/dri/i965/brw_fs.h             |   10 +++++-----
 src/mesa/drivers/dri/i965/brw_fs_generator.cpp |    3 ---
 src/mesa/drivers/dri/i965/brw_shader.h         |    1 -
 src/mesa/drivers/dri/i965/brw_vec4.h           |    2 +-
 5 files changed, 6 insertions(+), 16 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index d287bfd..48ee149 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -2798,12 +2798,6 @@ fs_visitor::dump_instruction(backend_instruction *be_inst)
    case UNIFORM:
       printf("***u%d***", inst->dst.reg);
       break;
-   case ARF:
-      if (inst->dst.reg == BRW_ARF_NULL)
-         printf("(null)");
-      else
-         printf("arf%d", inst->dst.reg);
-      break;
    default:
       printf("???");
       break;
diff --git a/src/mesa/drivers/dri/i965/brw_fs.h b/src/mesa/drivers/dri/i965/brw_fs.h
index c59ca51..5c7089d 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.h
+++ b/src/mesa/drivers/dri/i965/brw_fs.h
@@ -75,10 +75,10 @@ public:
    bool is_one() const;
    bool is_valid_3src() const;
 
-   /** Register file: ARF, GRF, MRF, IMM. */
+   /** Register file: GRF, MRF, IMM. */
    enum register_file file;
    /**
-    * Register number.  For ARF/MRF, it's the hardware register.  For
+    * Register number.  For MRF, it's the hardware register.  For
     * GRF, it's a virtual register number until register allocation
     */
    int reg;
@@ -107,9 +107,9 @@ public:
 };
 
 static const fs_reg reg_undef;
-static const fs_reg reg_null_f(ARF, BRW_ARF_NULL, BRW_REGISTER_TYPE_F);
-static const fs_reg reg_null_d(ARF, BRW_ARF_NULL, BRW_REGISTER_TYPE_D);
-static const fs_reg reg_null_ud(ARF, BRW_ARF_NULL, BRW_REGISTER_TYPE_UD);
+static const fs_reg reg_null_f(retype(brw_null_reg(), BRW_REGISTER_TYPE_F));
+static const fs_reg reg_null_d(retype(brw_null_reg(), BRW_REGISTER_TYPE_D));
+static const fs_reg reg_null_ud(retype(brw_null_reg(), BRW_REGISTER_TYPE_UD));
 
 class ip_record : public exec_node {
 public:
diff --git a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
index a35c172..4159773 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
@@ -911,8 +911,6 @@ fs_generator::generate_mov_dispatch_to_flags(fs_inst *inst)
 static uint32_t brw_file_from_reg(fs_reg *reg)
 {
    switch (reg->file) {
-   case ARF:
-      return BRW_ARCHITECTURE_REGISTER_FILE;
    case GRF:
       return BRW_GENERAL_REGISTER_FILE;
    case MRF:
@@ -932,7 +930,6 @@ brw_reg_from_fs_reg(fs_reg *reg)
 
    switch (reg->file) {
    case GRF:
-   case ARF:
    case MRF:
       if (reg->smear == -1) {
 	 brw_reg = brw_vec8_reg(brw_file_from_reg(reg), reg->reg, 0);
diff --git a/src/mesa/drivers/dri/i965/brw_shader.h b/src/mesa/drivers/dri/i965/brw_shader.h
index 55769ff..4dbd38d 100644
--- a/src/mesa/drivers/dri/i965/brw_shader.h
+++ b/src/mesa/drivers/dri/i965/brw_shader.h
@@ -29,7 +29,6 @@
 
 enum register_file {
    BAD_FILE,
-   ARF,
    GRF,
    MRF,
    IMM,
diff --git a/src/mesa/drivers/dri/i965/brw_vec4.h b/src/mesa/drivers/dri/i965/brw_vec4.h
index 290363e..91f1b64 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4.h
+++ b/src/mesa/drivers/dri/i965/brw_vec4.h
@@ -97,7 +97,7 @@ swizzle_for_size(int size);
 class reg
 {
 public:
-   /** Register file: ARF, GRF, MRF, IMM. */
+   /** Register file: GRF, MRF, IMM. */
    enum register_file file;
    /** virtual register number.  0 = fixed hw reg */
    int reg;