[PATCH] D151982: [AArch64] Make .arch without extra features actually take effect

[David Spickett via Phabricator via llvm-commits]

DavidSpickett added a comment.

Arm works as expected:

  void fn() {
      __asm__ volatile (".arch_extension sec\n"
                        ".arch thumbv7\n"
                        "smc #0\n");
  }
  
  <source>:4:24: error: instruction requires: TrustZone
                        "smc #0\n");
                         ^

`.arch` then `.arch_extension` compiles without error.

Intel does recognise the directive but it (deliberately) ignores it.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D151982/new/

https://reviews.llvm.org/D151982