Fix ++ and --.

Author: csyonghe

source/slang/core.meta.slang

@@ -2600,20 +2600,20 @@ for(auto fixity : kIncDecFixities)
 $(fixity.qual)
 __generic<T : __BuiltinArithmeticType>
 [__unsafeForceInlineEarly]
-T operator$(op.name)(in out T value)
-{$(fixity.bodyPrefix) value = value $(op.binOp) T(1); return $(fixity.returnVal); }
+T operator$(op.name)( in out T value)
+{ $(fixity.bodyPrefix) value = value $(op.binOp) __builtin_cast<T>(1); return $(fixity.returnVal); }
 
 $(fixity.qual)
 __generic<T : __BuiltinArithmeticType, let N : int>
 [__unsafeForceInlineEarly]
 vector<T,N> operator$(op.name)(in out vector<T,N> value)
-{$(fixity.bodyPrefix) value = value $(op.binOp) T(1); return $(fixity.returnVal); }
+{$(fixity.bodyPrefix) value = value $(op.binOp) __builtin_cast<T>(1); return $(fixity.returnVal); }
 
 $(fixity.qual)
 __generic<T : __BuiltinArithmeticType, let R : int, let C : int, let L : int>
 [__unsafeForceInlineEarly]
 matrix<T,R,C> operator$(op.name)(in out matrix<T,R,C,L> value)
-{$(fixity.bodyPrefix) value = value $(op.binOp) T(1); return $(fixity.returnVal); }
+{$(fixity.bodyPrefix) value = value $(op.binOp) __builtin_cast<T>(1); return $(fixity.returnVal); }
 
 $(fixity.qual)
 __generic<T, let addrSpace : uint64_t>

source/slang/slang-ir-autodiff-fwd.cpp

@@ -2012,6 +2012,7 @@ InstPair ForwardDiffTranscriber::transcribeInstImpl(IRBuilder* builder, IRInst*
     case kIROp_MakeArrayFromElement:
     case kIROp_MakeTuple:
     case kIROp_MakeValuePack:
+    case kIROp_BuiltinCast:
         return transcribeConstruct(builder, origInst);
     case kIROp_MakeStruct:
         return transcribeMakeStruct(builder, origInst);