[PATCH] D101016: [IR][sanitizer] Add module flag "frame-pointer" and set it for cc1 -mframe-pointer={non-leaf,all}

[Fangrui Song via Phabricator via cfe-commits]

MaskRay marked an inline comment as done.
MaskRay added inline comments.


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Comment at: llvm/lib/IR/Function.cpp:333
 
 Function *Function::createWithDefaultAttr(FunctionType *Ty,
                                           LinkageTypes Linkage,
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nickdesaulniers wrote:
> we should call this from gcov too to solve https://github.com/ClangBuiltLinux/linux/issues/955.
Exactly:) Planned to do it after this patch https://github.com/ClangBuiltLinux/linux/issues/1238#issuecomment-824517092


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Comment at: llvm/lib/IR/Function.cpp:346
+  case 1:
+    B.addAttribute("frame-pointer", "non-leaf");
+    break;
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vitalybuka wrote:
> Should these be added into Attribute:: ?
The function attribute "frame-pointer" is already used, with a string value. A regular attribute cannot have a string value so it was created as the string form...

The documentation is long overdue, though. I have added a bit documentation.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D101016/new/

https://reviews.llvm.org/D101016