[llvm] [X86][dec] Handle EVEX.W = 1 and EVEX.pp = 01 (PR #103816)

[Shengchen Kan via llvm-commits]

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@@ -21,6 +21,11 @@
 # INTEL: {evex}	imul	r9, r9, 123
 0x62,0x54,0xfc,0x08,0x6b,0xc9,0x7b
 
+# iOSize=64 when EVEX.W = 1 and EVEX.pp = 01
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KanRobert wrote:

Add a separate test for this and check more instructions like llvm/test/MC/Disassembler/X86/apx/reverse-encoding.txt

https://github.com/llvm/llvm-project/pull/103816