[compiler-rt] [sanitizer][asan][msvc] Teach GetInstructionSize about many instructions that appear in MSVC generated code. (PR #69490)

[nicole mazzuca via llvm-commits]

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@@ -544,6 +555,21 @@ static size_t GetInstructionSize(uptr address, size_t* rel_offset = nullptr) {
     case 0xA1:  // A1 XX XX XX XX XX XX XX XX :
                 //   movabs eax, dword ptr ds:[XXXXXXXX]
       return 9;
+    case 0xF2:
+      switch (*(u32 *)(address + 1)) {
+          case 0x2444110f:  // f2 0f 11 44 24 XX    movsd   mmword ptr [rsp +
+                            // XX], xmm0
+          case 0x244c110f:  //  f2 0f 11 4c 24 XX       movsd  QWORD PTR
+                            //  [rsp+0x8],xmm1
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strega-nil wrote:

`[rsp + 0x8]` should probably be `[rsp + XX]` (same below)

https://github.com/llvm/llvm-project/pull/69490