agx: rm deadcode

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26976>

src/asahi/compiler/agx_compile.c

@@ -26,7 +26,6 @@
 
 /* clang-format off */
 static const struct debug_named_value agx_debug_options[] = {
-   {"msgs",      AGX_DBG_MSGS,		"Print debug messages"},
    {"shaders",   AGX_DBG_SHADERS,	"Dump shaders in NIR and AIR"},
    {"shaderdb",  AGX_DBG_SHADERDB,	"Print statistics"},
    {"verbose",   AGX_DBG_VERBOSE,	"Disassemble verbosely"},
@@ -52,12 +51,6 @@ agx_get_compiler_debug(void)
    return debug_get_option_agx_compiler_debug();
 }
 
-#define DBG(fmt, ...)                                                          \
-   do {                                                                        \
-      if (agx_compiler_debug & AGX_DBG_MSGS)                                   \
-         fprintf(stderr, "%s:%d: " fmt, __func__, __LINE__, ##__VA_ARGS__);    \
-   } while (0)
-
 static agx_index
 agx_cached_preload(agx_context *ctx, agx_index *cache, unsigned base,
                    enum agx_size size)

src/asahi/compiler/agx_compiler.h

@@ -400,9 +400,6 @@ typedef struct agx_block {
     */
    uint8_t *ssa_to_reg_out;
 
-   /* Register allocation */
-   BITSET_DECLARE(regs_out, AGX_NUM_REGS);
-
    /* Is this block a loop header? If not, all of its predecessors precede it in
     * source order.
     */

src/asahi/compiler/agx_debug.h

@@ -15,7 +15,7 @@ extern "C" {
 
 /* clang-format off */
 enum agx_compiler_dbg {
-   AGX_DBG_MSGS        = BITFIELD_BIT(0),
+   /* bit 0 unused */
    AGX_DBG_SHADERS     = BITFIELD_BIT(1),
    AGX_DBG_SHADERDB    = BITFIELD_BIT(2),
    AGX_DBG_VERBOSE     = BITFIELD_BIT(3),

src/asahi/compiler/agx_register_allocate.c

@@ -869,9 +869,6 @@ agx_ra_assign_local(struct ra_ctx *rctx)
 
    block->ssa_to_reg_out = rctx->ssa_to_reg;
 
-   STATIC_ASSERT(sizeof(block->regs_out) == sizeof(used_regs));
-   memcpy(block->regs_out, used_regs, sizeof(used_regs));
-
    /* Also set the sources for the phis in our successors, since that logically
     * happens now (given the possibility of live range splits, etc)
     */