Changeset 103860 in vbox for trunk/include/iprt/armv8.h

Timestamp:

Mar 14, 2024 11:47:09 PM (9 months ago)

Author:

vboxsync

Message:

VMM/IEM: Reworked iemNativeEmitMaybeRaiseSseRelatedXcpt to avoid relative 14-bit jumps on arm64, optimizing it while at it. Also redid much of the tail label emitting (all but a few call a helper taking only pVCpu as arg). Made the fixup code assert+barf upon short 14-bit jumps to tail TB code as those will blow up for large TBs. bugref:10614 bugref:10370

File:

• trunk/include/iprt/armv8.h (modified) (1 diff)

trunk/include/iprt/armv8.h

@@ -3623 +3623 @@
 
 
+/** A64: Encodes the CBZ instructions. */
+DECL_FORCE_INLINE(uint32_t) Armv8A64MkInstrCbz(int32_t iImm19, uint32_t iReg, bool f64Bit = true)
+{
+    return Armv8A64MkInstrCbzCbnz(false /*fJmpIfNotZero*/, iImm19, iReg, f64Bit);
+}
+
+
+/** A64: Encodes the CBNZ instructions. */
+DECL_FORCE_INLINE(uint32_t) Armv8A64MkInstrCbnz(int32_t iImm19, uint32_t iReg, bool f64Bit = true)
+{
+    return Armv8A64MkInstrCbzCbnz(true /*fJmpIfNotZero*/, iImm19, iReg, f64Bit);
+}
+
+
 /**
  * A64: Encodes TBZ and TBNZ (conditional branch w/ immediate) instructions.