[PATCH] D113096: [X86][MS-InlineAsm] Add constraint *m for memory access w/ global var

[Kan Shengchen via Phabricator via cfe-commits]

skan created this revision.
Herald added subscribers: pengfei, hiraditya.
skan requested review of this revision.
Herald added projects: clang, LLVM.
Herald added subscribers: llvm-commits, cfe-commits.

Constraint `*m` should be used when the address of a variable is passed
as a value. And the constraint is missing for MS inline assembly when sth
is written to the address of the variable.

The missing would cause FE delete the definition of the static varible,
and then result in "undefined reference to xxx" issue.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D113096

Files:
  clang/test/CodeGen/X86/ms_fmul.c
  clang/test/CodeGen/ms-inline-asm-static-variable.c
  clang/test/CodeGen/ms-inline-asm-variables.c
  llvm/lib/Target/X86/AsmParser/X86AsmParser.cpp
  llvm/test/CodeGen/X86/ms-inline-asm-array.ll

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