[ASan] Recognize lea r10, [rip + XX]

[strega-nil]

This instruction is present in memcpy in the latest vcruntime

This PR has been opened for @AndrewDeanMS (a teammate inside Microsoft) who made the PR to our internal branch.

[llvmbot]

@llvm/pr-subscribers-compiler-rt-sanitizer

Author: nicole mazzuca (strega-nil)

Changes

This instruction is present in memcpy in the latest vcruntime

This PR has been opened for Andrew Dean (a teammate inside Microsoft) who made the PR to our internal branch.

---

Full diff: https://github.com/llvm/llvm-project/pull/68910.diff

1 Files Affected:

• (modified) compiler-rt/lib/interception/interception_win.cpp (+1-1)

diff --git a/compiler-rt/lib/interception/interception_win.cpp b/compiler-rt/lib/interception/interception_win.cpp
index d57afa3fda7bcb8..1b681ada37b170d 100644
--- a/compiler-rt/lib/interception/interception_win.cpp
+++ b/compiler-rt/lib/interception/interception_win.cpp
@@ -624,7 +624,7 @@ static size_t GetInstructionSize(uptr address, size_t* rel_offset = nullptr) {
                       //   mov rax, QWORD PTR [rip + XXXXXXXX]
     case 0x25ff48:    // 48 ff 25 XX XX XX XX :
                       //   rex.W jmp QWORD PTR [rip + XXXXXXXX]
-
+    case 0x158D4C:    // 4c 8d 15 XX XX XX XX : lea r10, [rip + XX]
       // Instructions having offset relative to 'rip' need offset adjustment.
       if (rel_offset)
         *rel_offset = 3;