[PATCH] D103036: [cfe][inline-asm] Support target-specific escaped character in inline asm

[Min-Yih Hsu via Phabricator via cfe-commits]

myhsu created this revision.
myhsu added reviewers: nickdesaulniers, nathanchance, m_zuckerman, rnk.
myhsu requested review of this revision.
Herald added a project: clang.
Herald added a subscriber: cfe-commits.

GCC allows each target to define a set of non-letter and non-digit escaped characters for inline assembly that will be replaced by another string (They call this "punctuation" characters. The existing "%%" and "%{" -- replaced by '%' and '{' at the end -- can be seen as special cases shared by all targets).
This patch implements this feature by adding a new hook in `TargetInfo`.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D103036

Files:
  clang/include/clang/Basic/TargetInfo.h
  clang/lib/AST/Stmt.cpp
  clang/lib/Basic/Targets/M68k.cpp
  clang/lib/Basic/Targets/M68k.h
  clang/test/CodeGen/m68k-asm.c

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