spirv: Rework logging

This commit reworks the way that logging works in SPIR-V to provide
richer and more detailed logging infrastructure.  This commit contains
several improvements over the old mechanism:

 1) Log messages are now more detailed.  They contain the SPIR-V byte
    offset as well as source language information from OpSource and
    OpLine.

 2) There is now a logging callback mechanism so that errors can get
    propagated to the client through debug callbak extensions.

Reviewed-by: Tapani Pälli <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>

1 files changed, 14 insertions, 0 deletions

diff --git a/src/compiler/spirv/nir_spirv.h b/src/compiler/spirv/nir_spirv.h
index 234b0ce3444..f129a205764 100644
--- a/src/compiler/spirv/nir_spirv.h
+++ b/src/compiler/spirv/nir_spirv.h
@@ -42,6 +42,12 @@ struct nir_spirv_specialization {
    };
 };
 
+enum nir_spirv_debug_level {
+   NIR_SPIRV_DEBUG_LEVEL_INFO,
+   NIR_SPIRV_DEBUG_LEVEL_WARNING,
+   NIR_SPIRV_DEBUG_LEVEL_ERROR,
+};
+
 struct spirv_to_nir_options {
    struct {
       bool float64;
@@ -54,6 +60,14 @@ struct spirv_to_nir_options {
       bool multiview;
       bool variable_pointers;
    } caps;
+
+   struct {
+      void (*func)(void *private_data,
+                   enum nir_spirv_debug_level level,
+                   size_t spirv_offset,
+                   const char *message);
+      void *private_data;
+   } debug;
 };
 
 nir_function *spirv_to_nir(const uint32_t *words, size_t word_count,