Changeset 102070 in vbox for trunk/src/VBox/VMM/VMMAll/IEMAllN8veRecompiler.cpp

Timestamp:

Nov 12, 2023 1:36:45 AM (15 months ago)

Author:

vboxsync

Message:

VMM/IEM: Native translation of IEM_MC_CLEAR_HIGH_GREG_U64. Had to extend IEMAllN8veRecompiler.py to insert IEM_MC_FREE_LOCAL (and IEM_MC_FREE_ARG) into ELSE branches to simplify state consolidation on IEM_MC_ENDIF (had trouble with cmovxx). bugref:10371

File:

• trunk/src/VBox/VMM/VMMAll/IEMAllN8veRecompiler.cpp (modified) (2 diffs)

trunk/src/VBox/VMM/VMMAll/IEMAllN8veRecompiler.cpp

@@ -5578 +5578 @@
 
 
+#define IEM_MC_FREE_LOCAL(a_Name)   iemNativeVarFreeLocal(pReNative, a_Name)
+
+/**
+ * This is called by IEM_MC_FREE_LOCAL.
+ */
+DECLINLINE(void) iemNativeVarFreeLocal(PIEMRECOMPILERSTATE pReNative, uint8_t idxVar)
+{
+    IEMNATIVE_ASSERT_VAR_IDX(pReNative, idxVar);
+    Assert(pReNative->Core.aVars[idxVar].uArgNo == UINT8_MAX);
+    iemNativeVarFreeOneWorker(pReNative, idxVar);
+}
+
+
+#define IEM_MC_FREE_ARG(a_Name)     iemNativeVarFreeArg(pReNative, a_Name)
+
+/**
+ * This is called by IEM_MC_FREE_ARG.
+ */
+DECLINLINE(void) iemNativeVarFreeArg(PIEMRECOMPILERSTATE pReNative, uint8_t idxVar)
+{
+    IEMNATIVE_ASSERT_VAR_IDX(pReNative, idxVar);
+    Assert(pReNative->Core.aVars[idxVar].uArgNo < RT_ELEMENTS(pReNative->Core.aidxArgVars));
+    iemNativeVarFreeOneWorker(pReNative, idxVar);
+}
+
+
+
 /*********************************************************************************************************************************
 *   Emitters for IEM_MC_CALL_CIMPL_XXX                                                                                           *
@@ -6386 +6413 @@
     off = iemNativeEmitTop32BitsClearCheck(pReNative, off, idxVarReg);
 #endif
+    return off;
+}
+
+
+
+#define IEM_MC_CLEAR_HIGH_GREG_U64(a_iGReg) \
+    off = iemNativeEmitClearHighGregU64(pReNative, off, a_iGReg)
+
+/** Emits code for IEM_MC_CLEAR_HIGH_GREG_U64. */
+DECL_INLINE_THROW(uint32_t)
+iemNativeEmitClearHighGregU64(PIEMRECOMPILERSTATE pReNative, uint32_t off, uint8_t iGReg)
+{
+    Assert(iGReg < 16);
+    uint8_t const idxGstTmpReg = iemNativeRegAllocTmpForGuestReg(pReNative, &off, IEMNATIVEGSTREG_GPR(iGReg),
+                                                                 kIemNativeGstRegUse_ForUpdate);
+    off = iemNativeEmitLoadGprFromGpr32(pReNative, off, idxGstTmpReg, idxGstTmpReg);
+    off = iemNativeEmitStoreGprToVCpuU64(pReNative, off, idxGstTmpReg, RT_UOFFSETOF_DYN(VMCPU, cpum.GstCtx.aGRegs[iGReg]));
+    iemNativeRegFreeTmp(pReNative, idxGstTmpReg);
     return off;
 }