r600g: use old shader disassembler by default

New disassembler is not completely isolated yet from further processing
in r600g/sb that is not required for printing the dump, so it has higher
probability to fail in case of any unexpected features in the bytecode.

This patch adds "sbdisasm" flag for R600_DEBUG that allows to use new
disassembler in r600g/sb for shader dumps when shader optimization
is not enabled.

If shader optimization is enabled, new disassembler is used by default.

Signed-off-by: Vadim Girlin <vadimgirlin@gmail.com>

1 files changed, 7 insertions, 6 deletions

diff --git a/src/gallium/drivers/r600/r600_asm.c b/src/gallium/drivers/r600/r600_asm.c
index 81b84ec5fd3..df0376ad11e 100644
--- a/src/gallium/drivers/r600/r600_asm.c
+++ b/src/gallium/drivers/r600/r600_asm.c
@@ -2281,6 +2281,7 @@ void *r600_create_vertex_fetch_shader(struct pipe_context *ctx,
 	uint32_t *bytecode;
 	int i, j, r, fs_size;
 	struct r600_fetch_shader *shader;
+	unsigned sb_disasm = rctx->screen->debug_flags & (DBG_SB_DISASM | DBG_SB);
 
 	assert(count < 32);
 
@@ -2387,13 +2388,13 @@ void *r600_create_vertex_fetch_shader(struct pipe_context *ctx,
 			fprintf(stderr, "\n");
 		}
 
-#if 0
-		r600_bytecode_disasm(&bc);
+		if (!sb_disasm) {
+			r600_bytecode_disasm(&bc);
 
-		fprintf(stderr, "______________________________________________________________\n");
-#else
-		r600_sb_bytecode_process(rctx, &bc, NULL, 1 /*dump*/, 0 /*optimize*/);
-#endif
+			fprintf(stderr, "______________________________________________________________\n");
+		} else {
+			r600_sb_bytecode_process(rctx, &bc, NULL, 1 /*dump*/, 0 /*optimize*/);
+		}
 	}
 
 	fs_size = bc.ndw*4;