[compiler,x64] Be more permissive in CanBeMemoryOperand

I noticed that, with pointer-compression enabled, in map checks we no
longer load the map as part of the cmp instruction:

movl rcx,[rdx-0x1]
movl rdi,0x8286f8d  ;; (compressed) object: <Map(HOLEY_ELEMENTS)>
cmpl rdi,rcx

This CL restores that:

movl rcx,0x82c6f8d  ;; (compressed) object: <Map(HOLEY_ELEMENTS)>
cmpl [rdx-0x1],rcx

Change-Id: Ifcc7f34fddf6aa423c0a26066ac124e9757cb9ab
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2320653Reviewed-by: Santiago Aboy Solanes <solanes@chromium.org>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#69130}

src/compiler/backend/x64/instruction-selector-x64.cc

@@ -83,7 +83,8 @@ class X64OperandGenerator final : public OperandGenerator {
         // When pointer compression is enabled 32-bit memory operands can be
         // used for tagged values.
         return rep == MachineRepresentation::kWord32 ||
-               (COMPRESS_POINTERS_BOOL && IsAnyTagged(rep));
+               (COMPRESS_POINTERS_BOOL &&
+                (IsAnyTagged(rep) || IsAnyCompressed(rep)));
       case kX64Cmp16:
       case kX64Test16:
         return rep == MachineRepresentation::kWord16;