isaspec: Rename isa_decode() to isa_disasm()

This actually disassembles the binary, and we will add a function that
actually decodes it to the same structure that the encoder uses.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23949>

src/compiler/isaspec/isaspec.h

@@ -121,7 +121,7 @@ struct isa_decode_options {
 	const struct isa_entrypoint *entrypoints;
 };
 
-void isa_decode(void *bin, int sz, FILE *out, const struct isa_decode_options *options);
+void isa_disasm(void *bin, int sz, FILE *out, const struct isa_decode_options *options);
 
 #ifdef __cplusplus
 }

src/compiler/isaspec/isaspec_decode_impl.c

@@ -741,7 +741,7 @@ display(struct decode_scope *scope)
 }
 
 static void
-decode(struct decode_state *state, void *bin, int sz)
+disasm(struct decode_state *state, void *bin, int sz)
 {
 	BITSET_WORD *instrs = bin;
 	unsigned errors = 0;   /* number of consecutive unmatched instructions */
@@ -848,7 +848,7 @@ cmp_entrypoints(const void *_a, const void *_b)
 }
 
 void
-isa_decode(void *bin, int sz, FILE *out, const struct isa_decode_options *options)
+isa_disasm(void *bin, int sz, FILE *out, const struct isa_decode_options *options)
 {
 	const struct isa_decode_options default_options = {
 		.gpu_id = options ? options->gpu_id : 0,
@@ -872,7 +872,7 @@ isa_decode(void *bin, int sz, FILE *out, const struct isa_decode_options *option
 		/* Do a pre-pass to find all the branch targets: */
 		state->print.out = fopen("/dev/null", "w");
 		state->options = &default_options;   /* skip hooks for prepass */
-		decode(state, bin, sz);
+		disasm(state, bin, sz);
 		fclose(state->print.out);
 		if (options) {
 			state->options = options;
@@ -896,7 +896,7 @@ isa_decode(void *bin, int sz, FILE *out, const struct isa_decode_options *option
 
 	state->print.out = out;
 
-	decode(state, bin, sz);
+	disasm(state, bin, sz);
 
 	ralloc_free(state);
 }

src/freedreno/ir3/disasm-a3xx.c

@@ -595,7 +595,7 @@ disasm_a3xx_stat(uint32_t *dwords, int sizedwords, int level, FILE *out,
 
    decode_options.cbdata = &ctx;
 
-   isa_decode(dwords, sizedwords * 4, out, &decode_options);
+   isa_disasm(dwords, sizedwords * 4, out, &decode_options);
 
    disasm_handle_last(&ctx);
 

src/freedreno/ir3/ir3_shader.c

@@ -836,7 +836,7 @@ ir3_shader_disasm(struct ir3_shader_variant *so, uint32_t *bin, FILE *out)
               const_state->immediates[i * 4 + 3]);
    }
 
-   isa_decode(bin, so->info.sizedwords * 4, out,
+   isa_disasm(bin, so->info.sizedwords * 4, out,
               &(struct isa_decode_options){
                  .gpu_id = ir->compiler->gen * 100,
                  .show_errors = true,

src/freedreno/ir3/tests/disasm.c

@@ -496,7 +496,7 @@ main(int argc, char **argv)
          strtoll(&test->instr[9], NULL, 16),
          strtoll(&test->instr[0], NULL, 16),
       };
-      isa_decode(code, 8, fdisasm,
+      isa_disasm(code, 8, fdisasm,
                  &(struct isa_decode_options){
                     .gpu_id = test->gpu_id,
                     .show_errors = true,

src/freedreno/isa/ir3-disasm.c

@@ -47,7 +47,7 @@ main(int argc, char **argv)
 	size_t sz;
 	void *raw = os_read_file(argv[1], &sz);
 
-	isa_decode(raw, sz, stdout, &(struct isa_decode_options) {
+	isa_disasm(raw, sz, stdout, &(struct isa_decode_options) {
 		.show_errors = true,
 		.branch_labels = true,
 		.pre_instr_cb = disasm_instr_cb,