Changeset 103997 in vbox for trunk

Timestamp:

Mar 22, 2024 8:05:26 AM (12 months ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

162384

Message:

VMM/IEM: Fix IEM_MC_COPY_XREG_U128(), IEM_MC_COPY_YREG_U128_ZX_VLMAX() and IEM_MC_COPY_YREG_U256_ZX_VLMAX() for the case when source register == destination register, , bugref:10614 [scm]

File:

• trunk/src/VBox/VMM/VMMAll/IEMAllN8veRecompFuncs.h (modified) (4 diffs)

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

@@ -7607 +7607 @@
 iemNativeEmitSimdCopyYregU128ZxVlmax(PIEMRECOMPILERSTATE pReNative, uint32_t off, uint8_t iYRegDst, uint8_t iYRegSrc)
 {
-    /* 
+    /*
      * The iYRegSrc == iYRegDst case needs to be treated differently here, because if iYRegDst gets allocated first for the full write
      * it won't load the actual value from CPUMCTX. When allocating iYRegSrc afterwards it will get duplicated from the already
@@ -7614 +7614 @@
     if (iYRegDst != iYRegSrc)
     {
-        /* Allocate destination and source register. */ 
+        /* Allocate destination and source register. */
         uint8_t const idxSimdRegDst = iemNativeSimdRegAllocTmpForGuestSimdReg(pReNative, &off, IEMNATIVEGSTSIMDREG_SIMD(iYRegDst),
                                                                               kIemNativeGstSimdRegLdStSz_256, kIemNativeGstRegUse_ForFullWrite);
@@ -7653 +7653 @@
 iemNativeEmitSimdCopyYregU256ZxVlmax(PIEMRECOMPILERSTATE pReNative, uint32_t off, uint8_t iYRegDst, uint8_t iYRegSrc)
 {
-    /* 
+    /*
      * The iYRegSrc == iYRegDst case needs to be treated differently here, because if iYRegDst gets allocated first for the full write
      * it won't load the actual value from CPUMCTX. When allocating iYRegSrc afterwards it will get duplicated from the already
@@ -7661 +7661 @@
     if (iYRegDst != iYRegSrc)
     {
-        /* Allocate destination and source register. */ 
+        /* Allocate destination and source register. */
         uint8_t const idxSimdRegSrc = iemNativeSimdRegAllocTmpForGuestSimdReg(pReNative, &off, IEMNATIVEGSTSIMDREG_SIMD(iYRegSrc),
                                                                               kIemNativeGstSimdRegLdStSz_256, kIemNativeGstRegUse_ReadOnly);