Changeset 96952 in vbox for trunk/src/VBox/VMM/VMMAll

Timestamp:

Sep 30, 2022 11:22:32 AM (2 years ago)

Author:

vboxsync

Message:

IEM: Tweaked so that vpinsrw has the same instruction length with GCC/MSVC (previously produced 6 bytes per entry on Linux, 7 on Windows).

File:

• trunk/src/VBox/VMM/VMMAll/IEMAllAImpl.asm (modified) (2 diffs)

trunk/src/VBox/VMM/VMMAll/IEMAllAImpl.asm

@@ -5333 +5333 @@
         lea     T0, [A3 + A3*2]         ; sizeof(vpinsrw+ret) == 6: (A3 * 3) *2
         lea     T1, [T1 + T0*2]
+        mov     A1, A2                  ; A2 requires longer encoding on Windows
         call    T1
         movdqu  [A0], xmm0
@@ -5341 +5342 @@
  %rep 256
 .imm %+ bImm:
-       vpinsrw   xmm0, xmm0, A2_32, bImm
+       vpinsrw   xmm0, xmm0, A1_32, bImm
        ret
   %assign bImm bImm + 1