Changeset 103850 in vbox for trunk/src/VBox/VMM/VMMAll

Timestamp:

Mar 14, 2024 12:38:51 PM (9 months ago)

Author:

vboxsync

Message:

VMM/IEM: Implement native emitter for IEM_MC_BROADCAST_XREG_U8_ZX_VLMAX(), bugref:10614

Location:

trunk/src/VBox/VMM/VMMAll

Files:

• IEMAllInstPython.py (modified) (1 diff)
• IEMAllN8veRecompFuncs.h (modified) (1 diff)

trunk/src/VBox/VMM/VMMAll/IEMAllInstPython.py

@@ -2962 +2962 @@
     'IEM_MC_BROADCAST_XREG_U32_ZX_VLMAX':                        (McBlock.parseMcGeneric,           True,  True,  g_fNativeSimd),
     'IEM_MC_BROADCAST_XREG_U64_ZX_VLMAX':                        (McBlock.parseMcGeneric,           True,  True,  g_fNativeSimd),
-    'IEM_MC_BROADCAST_XREG_U8_ZX_VLMAX':                         (McBlock.parseMcGeneric,           True,  True,  False, ),
+    'IEM_MC_BROADCAST_XREG_U8_ZX_VLMAX':                         (McBlock.parseMcGeneric,           True,  True,  g_fNativeSimd),
     'IEM_MC_BROADCAST_YREG_U128_ZX_VLMAX':                       (McBlock.parseMcGeneric,           True,  True,  False, ),
     'IEM_MC_BROADCAST_YREG_U16_ZX_VLMAX':                        (McBlock.parseMcGeneric,           True,  True,  False, ),

trunk/src/VBox/VMM/VMMAll/IEMAllN8veRecompFuncs.h

@@ -7077 +7077 @@
 
 
+#define IEM_MC_BROADCAST_XREG_U8_ZX_VLMAX(a_iXRegDst, a_u8Src) \
+    off = iemNativeEmitSimdBroadcastXregU8ZxVlmax(pReNative, off, a_iXRegDst, a_u8Src)
+
+/** Emits code for IEM_MC_BROADCAST_XREG_U8_ZX_VLMAX. */
+DECL_INLINE_THROW(uint32_t)
+iemNativeEmitSimdBroadcastXregU8ZxVlmax(PIEMRECOMPILERSTATE pReNative, uint32_t off, uint8_t iXReg, uint8_t idxSrcVar)
+{
+    IEMNATIVE_ASSERT_VAR_IDX(pReNative, idxSrcVar);
+    IEMNATIVE_ASSERT_VAR_SIZE(pReNative, idxSrcVar, sizeof(uint8_t));
+
+    uint8_t const idxSimdRegDst = iemNativeSimdRegAllocTmpForGuestSimdReg(pReNative, &off, IEMNATIVEGSTSIMDREG_SIMD(iXReg),
+                                                                          kIemNativeGstSimdRegLdStSz_256, kIemNativeGstRegUse_ForFullWrite);
+
+    uint8_t const idxVarReg = iemNativeVarRegisterAcquire(pReNative, idxSrcVar, &off);
+
+    off = iemNativeEmitSimdBroadcastGprToVecRegU8(pReNative, off, idxSimdRegDst, idxVarReg, false /*f256Bit*/);
+    off = iemNativeEmitSimdZeroVecRegHighU128(pReNative, off, idxSimdRegDst);
+    IEMNATIVE_SIMD_REG_STATE_SET_DIRTY_LO_U128(pReNative, iXReg);
+    IEMNATIVE_SIMD_REG_STATE_SET_DIRTY_HI_U128(pReNative, iXReg);
+
+    iemNativeSimdRegFreeTmp(pReNative, idxSimdRegDst);
+    iemNativeVarRegisterRelease(pReNative, idxSrcVar);
+
+    return off;
+}
+
+
 #define IEM_MC_BROADCAST_XREG_U16_ZX_VLMAX(a_iXRegDst, a_u16Src) \
     off = iemNativeEmitSimdBroadcastXregU16ZxVlmax(pReNative, off, a_iXRegDst, a_u16Src)