Fix various intptr_t issues by defining its width in `getIntTypeInfo` (#6786)

* Define a bit size for the intptr types

* Fix intptr_t sign

* Extend intptr test to check for previously broken operations

* Fix intptr vector test on CUDA

* Handle intptr size in getAnyValueSize

* Fix formatting

* Try with __ARM_ARCH_ISA_64

* On macs, int64_t != intptr_t

Yikes

* Move define to prelude header

* Also check apple in host-prelude

* Fix define location

1 files changed, 12 insertions, 0 deletions

diff --git a/source/slang/slang-emit-cuda.cpp b/source/slang/slang-emit-cuda.cpp
index 8657b3707..bb6941907 100644
--- a/source/slang/slang-emit-cuda.cpp
+++ b/source/slang/slang-emit-cuda.cpp
@@ -123,6 +123,18 @@ UnownedStringSlice CUDASourceEmitter::getVectorPrefix(IROp op)
     case kIROp_UInt64Type:
         return UnownedStringSlice("ulonglong");
 
+#if SLANG_PTR_IS_64
+    case kIROp_IntPtrType:
+        return UnownedStringSlice("longlong");
+    case kIROp_UIntPtrType:
+        return UnownedStringSlice("ulonglong");
+#else
+    case kIROp_IntPtrType:
+        return UnownedStringSlice("int");
+    case kIROp_UIntPtrType:
+        return UnownedStringSlice("uint");
+#endif
+
     case kIROp_HalfType:
         return UnownedStringSlice("__half");