[llvm] 49bef60 - [MC][X86] Fix encoding for VMOVPQIto64Zmr for correct disassembly

[Simon Pilgrim via llvm-commits]

Author: Simon Pilgrim
Date: 2023-05-07T15:25:13+01:00
New Revision: 49bef60b99de3cf4df94c7c4e8d9681a866ade89

URL: https://github.com/llvm/llvm-project/commit/49bef60b99de3cf4df94c7c4e8d9681a866ade89
DIFF: https://github.com/llvm/llvm-project/commit/49bef60b99de3cf4df94c7c4e8d9681a866ade89.diff

LOG: [MC][X86] Fix encoding for VMOVPQIto64Zmr for correct disassembly

Fixes #62412

Added: 
    

Modified: 
    llvm/lib/Target/X86/X86InstrAVX512.td
    llvm/test/MC/Disassembler/X86/avx-512.txt

Removed: 
    


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diff  --git a/llvm/lib/Target/X86/X86InstrAVX512.td b/llvm/lib/Target/X86/X86InstrAVX512.td
index af8656cc7d7b..d20f00466a34 100644
--- a/llvm/lib/Target/X86/X86InstrAVX512.td
+++ b/llvm/lib/Target/X86/X86InstrAVX512.td
@@ -4068,7 +4068,7 @@ def VMOVPQIto64Zrr : I<0x7E, MRMDestReg, (outs GR64:$dst), (ins VR128X:$src),
 let isCodeGenOnly = 1, ForceDisassemble = 1, hasSideEffects = 0, mayStore = 1 in
 def VMOVPQIto64Zmr : I<0x7E, MRMDestMem, (outs), (ins i64mem:$dst, VR128X:$src),
                       "vmovq\t{$src, $dst|$dst, $src}", []>, PD,
-                      EVEX, REX_W, Sched<[WriteVecStore]>,
+                      EVEX, REX_W, EVEX_CD8<64, CD8VT1>, Sched<[WriteVecStore]>,
                       Requires<[HasAVX512, In64BitMode]>;
 
 def VMOVPQI2QIZmr : I<0xD6, MRMDestMem, (outs),

diff  --git a/llvm/test/MC/Disassembler/X86/avx-512.txt b/llvm/test/MC/Disassembler/X86/avx-512.txt
index b187b7e0cd90..7c6f9d79ebd9 100644
--- a/llvm/test/MC/Disassembler/X86/avx-512.txt
+++ b/llvm/test/MC/Disassembler/X86/avx-512.txt
@@ -55,7 +55,7 @@
 # CHECK: vpord %zmm22, %zmm21, %zmm23
 0x62 0xa1 0x55 0x40 0xeb 0xfe
 
-# CHECK: vmovq   %xmm19, 2032(%rdx)
+# CHECK: vmovq   %xmm19, 1016(%rdx)
 0x62 0xe1 0xfd 0x08 0x7e 0x5a 0x7f
 
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