Improving glslang -O1 passes (#1926)

* #include an absolute path didn't work - because paths were taken to always be relative.

* Improve passes used for -O1 option with glslang.

* Set sourceManager when serializing container.

1 files changed, 5 insertions, 4 deletions

diff --git a/source/slang/slang-compiler.cpp b/source/slang/slang-compiler.cpp
index 5d0ae2f8d..0a9180b30 100644
--- a/source/slang/slang-compiler.cpp
+++ b/source/slang/slang-compiler.cpp
@@ -2094,10 +2094,6 @@ namespace Slang
         SerialContainerUtil::WriteOptions options;
 
         options.compressionType = linkage->serialCompressionType;
-        if (linkage->debugInfoLevel != DebugInfoLevel::None)
-        {
-            options.optionFlags |= SerialOptionFlag::SourceLocation;
-        }
         if (linkage->m_obfuscateCode)
         {
             // If code is obfuscated, we *disable* AST output as it is not obfuscated and will reveal
@@ -2105,6 +2101,11 @@ namespace Slang
             // Also currently only IR is needed.
             options.optionFlags &= ~SerialOptionFlag::ASTModule;
         }
+        else if (linkage->debugInfoLevel != DebugInfoLevel::None && linkage->getSourceManager())
+        {
+            options.optionFlags |= SerialOptionFlag::SourceLocation;
+            options.sourceManager = linkage->getSourceManager();
+        }
 
         {
             RiffContainer container;