[PATCH] D107850: [asan] Implemented custom calling convention similar to the one used by HWASan for X86.

[Vitaly Buka via Phabricator via cfe-commits]

vitalybuka added a subscriber: eugenis.
vitalybuka added inline comments.


================
Comment at: llvm/include/llvm/IR/Intrinsics.td:1640
 
+def int_asan_check_memaccess :
+  Intrinsic<[],[llvm_ptr_ty, llvm_i8_ty, llvm_i8_ty],
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kstoimenov wrote:
> vitalybuka wrote:
> > vitalybuka wrote:
> > > PTAL at lvm.read_register.i32
> > > 
> > > How about:
> > > 
> > > llvm.asan.check.memaccess ->
> > >   lvm.asan.check_read
> > >   lvm.asan.check_write
> > >   lvm.asan.kernel.check_read
> > >   lvm.asan.kernel.check_write
> > > 
> > > Even better
> > >   lvm.asan.check_read.{i8, i16, i32, ...}
> > >   lvm.asan.check_write.{i8, i16, i32, ...}
> > >   lvm.asan.kernel.check_read.{i8, i16, i32, ...}
> > >   lvm.asan.kernel.check_write.{i8, i16, i32, ...}
> > > 
> > Looks like underscore is not used in intrinsic names, so essentially the same with dots.
> Sounds good to me. I do the full expansion so there will be 20 intrinsics altogether. I will update the code and ping you when done. 
@pcc @eugenis 
WDYT, I think later we can do the same for HWASAN?


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https://reviews.llvm.org/D107850