Add support for dumping intermediates for debugging.

Calling:

    spSetDumpIntermedites(compileRequest, true);

will set up a mode where Slang tries to dump every intermediate HLSL, GLSL, DXBC, SPIR-V, etc. file it generates. If SPIR-V or DXBC is requested then we also dump assembly of those.

Right now the files are all named as `slang-<counter>.<ext>`, and get dropped in whatever the working directory is, but I'm open to ideas on how to improve that.

Note: this change introduces a new binary interface to `glslang`, so pulling it requires an updated `glslang.dll`.

1 files changed, 8 insertions, 0 deletions

diff --git a/source/slang/slang.cpp b/source/slang/slang.cpp
index bfc499c1b..89db62ec8 100644
--- a/source/slang/slang.cpp
+++ b/source/slang/slang.cpp
@@ -668,6 +668,14 @@ SLANG_API void spSetCompileFlags(
     REQ(request)->compileFlags = flags;
 }
 
+SLANG_API void spSetDumpIntermediates(
+    SlangCompileRequest*    request,
+    int                     enable)
+{
+    REQ(request)->shouldDumpIntermediates = enable != 0;
+}
+
+
 SLANG_API void spSetCodeGenTarget(
         SlangCompileRequest*    request,
         int target)