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[ARM][clang] Add back branch protection tests When committing the PACBTI-M frontend support patch (https://reviews.llvm.org/D112421), the tests in arm-invalid-branch-protection.c were failing on certain test setups, so it was removed to make the llvm test suite pass. The fix is to require arm-registered-target. This patch is part of a series that adds support for the PACBTI-M extension of the Armv8.1-M architecture, as detailed here: https://community.arm.com/arm-community-blogs/b/architectures-and-processors-blog/posts/armv8-1-m-pointer-authentication-and-branch-target-identification-extension The PACBTI-M specification can be found in the Armv8-M Architecture Reference Manual: https://developer.arm.com/documentation/ddi0553/latest Reviewed By: erichkeane Differential Revision: https://reviews.llvm.org/D115141
2021-12-06 23:03:14 +08:00
// REQUIRES: arm-registered-target
// RUN: %clang -target arm-arm-none-eabi -mbranch-protection=pac-ret+b-key -c %s -o /dev/null 2>&1 | FileCheck %s
// RUN: %clang -target arm-arm-none-eabi -mbranch-protection=pac-ret+b-key+leaf -c %s -o /dev/null 2>&1 | FileCheck %s
// RUN: %clang -target arm-arm-none-eabi -mbranch-protection=bti+pac-ret+b-key -c %s -o /dev/null 2>&1 | FileCheck %s
// RUN: %clang -target arm-arm-none-eabi -mbranch-protection=bti+pac-ret+b-key+leaf -c %s -o /dev/null 2>&1 | FileCheck %s
// CHECK: warning: invalid branch protection option 'b-key' in '-mbranch-protection={{[a-z+-]*}}' [-Wbranch-protection]