commit 339976c4dfecfb6e268fe2245a2763f7025e4f2b
author bernhardu <bernhardu@mailbox.org> Mon Jun 02 08:59:43 2025 +0200
committer Copybara-Service <copybara-worker@google.com> Mon Jun 02 00:01:36 2025 -0700
tree 49dd16fdfafe645a923d0bbd36a3a4df0f9b0243
parent b0dd94002ebdf608c5c77ca3f95f27c52ffb9806

[win/asan] GetInstructionSize: Support `48 bX` movabsq instructions. (#141625)

Created for Wine's memset by clang or mingw-gcc,
the latter places it quite at the start of the function:

```
   0x00006ffffb67e210 <memset+0>:       0f b6 d2                movzbl %dl,%edx
   0x00006ffffb67e213 <memset+3>:       48 b8 01 01 01 01 01 01 01 01   movabs $0x101010101010101,%rax
```

`3200      uint64_t v = 0x101010101010101ull * (unsigned char)c;`

https://gitlab.winehq.org/wine/wine/-/blob/290fd532ee7376442d272e3833528256bfe5e9dc/dlls/msvcrt/string.c#L3200

GitOrigin-RevId: 32973408bcb28acac897f4e43cb8f64a4b64529e