Further implementation of SPIRV direct emit. (#1920)

* Further implementation of SPIRV direct emit.

This change implements:
- Struct, Vector, Matrix and Unsized Array types.
- Basic arithmetic opcodes, vector construct, swizzle etc.
- getElementPtr, getElement, fieldAddress, extractField.
- SPIRV target intrinsics with SPIRV asm code in stdlib.
- RWStructuredBuffer and StructuredBuffer.
- Pointer storage class propagation.
- Control flow.

* Fix.

1 files changed, 1 insertions, 0 deletions

diff --git a/source/slang/slang-compiler.cpp b/source/slang/slang-compiler.cpp
index d909a190c..028886c7e 100644
--- a/source/slang/slang-compiler.cpp
+++ b/source/slang/slang-compiler.cpp
@@ -1445,6 +1445,7 @@ namespace Slang
                 if (target == CodeGenTarget::SPIRV && compileRequest->shouldEmitSPIRVDirectly)
                 {
                     List<uint8_t> spirv;
+                    targetReq->setDirectSPIRVEmitMode();
                     SLANG_RETURN_ON_FAIL(emitSPIRVForEntryPointsDirectly(compileRequest, entryPointIndices, targetReq, spirv));
                     auto spirvBlob = ListBlob::moveCreate(spirv);
                     downstreamResult = new BlobDownstreamCompileResult(DownstreamDiagnostics(), spirvBlob);