Dummy TailCallCopyArgsThunk for altjit

CarolEidt · CarolEidt · commit 92428fa28db4 · 2018-09-11T14:21:18.000-07:00
diff --git a/src/jit/morph.cpp b/src/jit/morph.cpp
@@ -8316,7 +8316,12 @@ GenTree* Compiler::fgMorphCall(GenTreeCall* call)
                                                                               : CORINFO_TAILCALL_NORMAL);
             if (pfnCopyArgs == nullptr)
             {
+#ifdef ALT_JIT
+                // If this is an altjit, we may not get a thunk from the VM, so use a fake one.
+                pfnCopyArgs = (void*)0xdddddddd;
+#else
                 szFailReason = "TailCallCopyArgsThunk not available.";
+#endif
             }
         }
 #endif // !_TARGET_X86_

Original file line number	Diff line number	Diff line change
`@@ -8316,7 +8316,12 @@ GenTree* Compiler::fgMorphCall(GenTreeCall* call)`
`8316`	`8316`	`: CORINFO_TAILCALL_NORMAL);`
`8317`	`8317`	`if (pfnCopyArgs == nullptr)`
`8318`	`8318`	`{`
	`8319`	`+#ifdef ALT_JIT`
	`8320`	`+ // If this is an altjit, we may not get a thunk from the VM, so use a fake one.`
	`8321`	`+ pfnCopyArgs = (void*)0xdddddddd;`
	`8322`	`+#else`
`8319`	`8323`	`szFailReason = "TailCallCopyArgsThunk not available.";`
	`8324`	`+#endif`
`8320`	`8325`	`}`
`8321`	`8326`	`}`
`8322`	`8327`	`#endif // !_TARGET_X86_`