[PATCH] D112421: [clang][ARM] PACBTI-M frontend support

[Erich Keane via Phabricator via llvm-commits]

erichkeane added a comment.

I just found that build failure in our downstream, and did a little investigation.  Running the clang-invocations directly resulted in :

  [ekeane1 at scsel-clx-24 llvm]$ /localdisk2/ekeane1/workspaces/xmain-web/builds/xmainefi2linux_debug/llvm/bin/clang -target arm-arm-none-eabi -mbranch-protection=pac-ret+b-key -c /localdisk2/ekeane1/workspaces/xmain-web/llvm/clang/test/Frontend/arm-invalid-branch-protection.c -o /dev/null 2>&1
  clang-14: warning: invalid branch protection option 'b-key' in '-mbranch-protection=pac-ret+b-key' [-Wbranch-protection]
  error: unable to create target: 'No available targets are compatible with triple "armv4t-arm-none-eabi"'
  1 error generated.
  [ekeane1 at scsel-clx-24 llvm]$ /localdisk2/ekeane1/workspaces/xmain-web/builds/xmainefi2linux_debug/llvm/bin/clang -target arm-arm-none-eabi -mbranch-protection=pac-ret+b-key+leaf -c /localdisk2/ekeane1/workspaces/xmain-web/llvm/clang/test/Frontend/arm-invalid-branch-protection.c -o /dev/null 2>&1
  clang-14: warning: invalid branch protection option 'b-key' in '-mbranch-protection=pac-ret+b-key+leaf' [-Wbranch-protection]
  error: unable to create target: 'No available targets are compatible with triple "armv4t-arm-none-eabi"'
  1 error generated.
  [ekeane1 at scsel-clx-24 llvm]$ /localdisk2/ekeane1/workspaces/xmain-web/builds/xmainefi2linux_debug/llvm/bin/clang -target arm-arm-none-eabi -mbranch-protection=bti+pac-ret+b-key -c /localdisk2/ekeane1/workspaces/xmain-web/llvm/clang/test/Frontend/arm-invalid-branch-protection.c -o /dev/null 2>&1
  clang-14: warning: invalid branch protection option 'b-key' in '-mbranch-protection=bti+pac-ret+b-key' [-Wbranch-protection]
  error: unable to create target: 'No available targets are compatible with triple "armv4t-arm-none-eabi"'
  1 error generated.
  [ekeane1 at scsel-clx-24 llvm]$ /localdisk2/ekeane1/workspaces/xmain-web/builds/xmainefi2linux_debug/llvm/bin/clang -target arm-arm-none-eabi -mbranch-protection=bti+pac-ret+b-key+leaf -c /localdisk2/ekeane1/workspaces/xmain-web/llvm/clang/test/Frontend/arm-invalid-branch-protection.c -o /dev/null 2>&1
  clang-14: warning: invalid branch protection option 'b-key' in '-mbranch-protection=bti+pac-ret+b-key+leaf' [-Wbranch-protection]
  error: unable to create target: 'No available targets are compatible with triple "armv4t-arm-none-eabi"'

I suspect the problem with the bots is that the test needs to have the 'requires' clause added to the top, like you did with the CodeGen tests.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D112421/new/

https://reviews.llvm.org/D112421