[PATCH] D138489: [tsan] Add tsan support for loongarch64

Fri Nov 25 02:56:45 PST 2022

xry111 added inline comments.

================
Comment at: compiler-rt/lib/sanitizer_common/sanitizer_linux.cpp:1543
+        "r"(__fn), "r"(__arg), "r"(nr_clone), "i"(__NR_exit)
+      : "memory");
+  return res;
----------------
SixWeining wrote:
> tangyouling wrote:
> > SixWeining wrote:
> > > Shall we list $t0-$t8 here? Ref D137396.
> > > Shall we list $t0-$t8 here? Ref D137396.
> > 
> > I will add the missing $t0-$t8.
> As this inline asm is almost at the end of the function, it's sure `$t*` would not be used any more. So I think we could not add them to the clobber list. Just keep current approach.
It's hard to tell: the compiler may decide to inline this function of perform some inter-procedural analysis.  So IMO we should add t0-t8 here.

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D138489/new/

https://reviews.llvm.org/D138489