[all-commits] [llvm/llvm-project] be08e4: [X86][MS-InlineAsm] Add constraint *m for memory a...

[KanRobert via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: be08e452f36602cd73f816787bf16d1a0405ff09
      https://github.com/llvm/llvm-project/commit/be08e452f36602cd73f816787bf16d1a0405ff09
  Author: Shengchen Kan <shengchen.kan at intel.com>
  Date:   2021-11-05 (Fri, 05 Nov 2021)

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

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

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.

Reviewed By: xiangzhangllvm

Differential Revision: https://reviews.llvm.org/D113096