JIT: Support frozen structs for Swift pinvokes

src/coreclr/inc/corinfo.h

@@ -3080,6 +3080,9 @@ class ICorStaticInfo
             SYSTEMV_AMD64_CORINFO_STRUCT_REG_PASSING_DESCRIPTOR*    structPassInRegDescPtr  /* OUT */
             ) = 0;
 
+    // Classifies a swift structure into primitives or an implicit byref for ABI purposes.
+    virtual void getSwiftLowering(CORINFO_CLASS_HANDLE structHnd, CORINFO_SWIFT_LOWERING* pLowering) = 0;
+
     virtual uint32_t getLoongArch64PassStructInRegisterFlags(CORINFO_CLASS_HANDLE cls) = 0;
     virtual uint32_t getRISCV64PassStructInRegisterFlags(CORINFO_CLASS_HANDLE cls) = 0;
 };

src/coreclr/inc/icorjitinfoimpl_generated.h

@@ -504,6 +504,10 @@ bool getSystemVAmd64PassStructInRegisterDescriptor(
           CORINFO_CLASS_HANDLE structHnd,
           SYSTEMV_AMD64_CORINFO_STRUCT_REG_PASSING_DESCRIPTOR* structPassInRegDescPtr) override;
 
+void getSwiftLowering(
+          CORINFO_CLASS_HANDLE structHnd,
+          CORINFO_SWIFT_LOWERING* pLowering) override;
+
 uint32_t getLoongArch64PassStructInRegisterFlags(
           CORINFO_CLASS_HANDLE structHnd) override;
 

src/coreclr/inc/jiteeversionguid.h

@@ -43,11 +43,11 @@ typedef const GUID *LPCGUID;
 #define GUID_DEFINED
 #endif // !GUID_DEFINED
 
-constexpr GUID JITEEVersionIdentifier = { /* 86eab154-5d93-4fad-bc07-e94fd9268b70 */
-    0x86eab154,
-    0x5d93,
-    0x4fad,
-    {0xbc, 0x07, 0xe9, 0x4f, 0xd9, 0x26, 0x8b, 0x70}
+constexpr GUID JITEEVersionIdentifier = { /* e5f629d4-edc8-48f1-a75d-0fa1f0b5af6f */
+    0xe5f629d4,
+    0xedc8,
+    0x48f1,
+    {0xa7, 0x5d, 0x0f, 0xa1, 0xf0, 0xb5, 0xaf, 0x6f}
   };
 
 //////////////////////////////////////////////////////////////////////////////////////////////////////////

src/coreclr/jit/ICorJitInfo_names_generated.h

@@ -125,6 +125,7 @@ DEF_CLR_API(printMethodName)
 DEF_CLR_API(getMethodNameFromMetadata)
 DEF_CLR_API(getMethodHash)
 DEF_CLR_API(getSystemVAmd64PassStructInRegisterDescriptor)
+DEF_CLR_API(getSwiftLowering)
 DEF_CLR_API(getLoongArch64PassStructInRegisterFlags)
 DEF_CLR_API(getRISCV64PassStructInRegisterFlags)
 DEF_CLR_API(getThreadTLSIndex)

src/coreclr/jit/ICorJitInfo_wrapper_generated.hpp

@@ -1193,6 +1193,15 @@ bool WrapICorJitInfo::getSystemVAmd64PassStructInRegisterDescriptor(
     return temp;
 }
 
+void WrapICorJitInfo::getSwiftLowering(
+          CORINFO_CLASS_HANDLE structHnd,
+          CORINFO_SWIFT_LOWERING* pLowering)
+{
+    API_ENTER(getSwiftLowering);
+    wrapHnd->getSwiftLowering(structHnd, pLowering);
+    API_LEAVE(getSwiftLowering);
+}
+
 uint32_t WrapICorJitInfo::getLoongArch64PassStructInRegisterFlags(
           CORINFO_CLASS_HANDLE structHnd)
 {

src/coreclr/jit/compiler.h

@@ -4377,7 +4377,9 @@ class Compiler
     void impCheckForPInvokeCall(
         GenTreeCall* call, CORINFO_METHOD_HANDLE methHnd, CORINFO_SIG_INFO* sig, unsigned mflags, BasicBlock* block);
     GenTreeCall* impImportIndirectCall(CORINFO_SIG_INFO* sig, const DebugInfo& di = DebugInfo());
-    void impPopArgsForUnmanagedCall(GenTreeCall* call, CORINFO_SIG_INFO* sig, /* OUT */ CallArg** swiftErrorArg);
+    void impPopArgsForUnmanagedCall(GenTreeCall* call, CORINFO_SIG_INFO* sig, CallArg** swiftErrorArg);
+    void impPopArgsForSwiftCall(GenTreeCall* call, CORINFO_SIG_INFO* sig, CallArg** swiftErrorArg);
+    void impRetypeUnmanagedCallArgs(GenTreeCall* call);
 
 #ifdef SWIFT_SUPPORT
     void impAppendSwiftErrorStore(GenTreeCall* call, CallArg* const swiftErrorArg);

src/coreclr/jit/gentree.h

@@ -4726,7 +4726,6 @@ class CallArg
     CORINFO_CLASS_HANDLE GetSignatureClassHandle() { return m_signatureClsHnd; }
     var_types GetSignatureType() { return m_signatureType; }
     WellKnownArg GetWellKnownArg() { return m_wellKnownArg; }
-    void SetWellKnownArg(const WellKnownArg argType) { m_wellKnownArg = argType; }
     bool IsTemp() { return m_isTmp; }
     // clang-format on