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authorJason Ekstrand <[email protected]>2018-01-01 19:55:33 -0800
committerJason Ekstrand <[email protected]>2018-01-08 14:57:44 -0800
commit53265c8798ee83e812f2e27356c8d9affc5356ca (patch)
tree85720f1b64dddd64813a8ae5d834cc3af69c0588 /src/compiler
parent819adfdfb4601eed9c1642f23efa0c8077213a35 (diff)
spirv: Add a mechanism for dumping failing shaders
Reviewed-by: Lionel Landwerlin <[email protected]>
Diffstat (limited to 'src/compiler')
-rw-r--r--src/compiler/spirv/spirv_to_nir.c28
-rw-r--r--src/compiler/spirv/vtn_private.h1
2 files changed, 29 insertions, 0 deletions
diff --git a/src/compiler/spirv/spirv_to_nir.c b/src/compiler/spirv/spirv_to_nir.c
index d195fbe09b9..7a4b52f4fde 100644
--- a/src/compiler/spirv/spirv_to_nir.c
+++ b/src/compiler/spirv/spirv_to_nir.c
@@ -31,6 +31,8 @@
#include "nir/nir_constant_expressions.h"
#include "spirv_info.h"
+#include <stdio.h>
+
void
vtn_log(struct vtn_builder *b, enum nir_spirv_debug_level level,
size_t spirv_offset, const char *message)
@@ -94,6 +96,27 @@ vtn_log_err(struct vtn_builder *b,
ralloc_free(msg);
}
+static void
+vtn_dump_shader(struct vtn_builder *b, const char *path, const char *prefix)
+{
+ static int idx = 0;
+
+ char filename[1024];
+ int len = snprintf(filename, sizeof(filename), "%s/%s-%d.spirv",
+ path, prefix, idx++);
+ if (len < 0 || len >= sizeof(filename))
+ return;
+
+ FILE *f = fopen(filename, "w");
+ if (f == NULL)
+ return;
+
+ fwrite(b->spirv, sizeof(*b->spirv), b->spirv_word_count, f);
+ fclose(f);
+
+ vtn_info("SPIR-V shader dumped to %s", filename);
+}
+
void
_vtn_warn(struct vtn_builder *b, const char *file, unsigned line,
const char *fmt, ...)
@@ -117,6 +140,10 @@ _vtn_fail(struct vtn_builder *b, const char *file, unsigned line,
file, line, fmt, args);
va_end(args);
+ const char *dump_path = getenv("MESA_SPIRV_FAIL_DUMP_PATH");
+ if (dump_path)
+ vtn_dump_shader(b, dump_path, "fail");
+
longjmp(b->fail_jump, 1);
}
@@ -3706,6 +3733,7 @@ spirv_to_nir(const uint32_t *words, size_t word_count,
/* Initialize the stn_builder object */
struct vtn_builder *b = rzalloc(NULL, struct vtn_builder);
b->spirv = words;
+ b->spirv_word_count = word_count;
b->file = NULL;
b->line = -1;
b->col = -1;
diff --git a/src/compiler/spirv/vtn_private.h b/src/compiler/spirv/vtn_private.h
index f7d8f49c98e..374643a7a84 100644
--- a/src/compiler/spirv/vtn_private.h
+++ b/src/compiler/spirv/vtn_private.h
@@ -531,6 +531,7 @@ struct vtn_builder {
jmp_buf fail_jump;
const uint32_t *spirv;
+ size_t spirv_word_count;
nir_shader *shader;
const struct spirv_to_nir_options *options;