File: arm-ignore-branch-protection-option.c

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,634,792 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (18 lines) | stat: -rw-r--r-- 829 bytes parent folder | download | duplicates (13) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
 
// REQUIRES: arm-registered-target

/// Check warning for
// RUN: %clang -target arm-arm-none-eabi -march=armv7-m -mbranch-protection=bti %s -S -emit-llvm -o - 2>&1 | FileCheck %s

__attribute__((target("arch=cortex-m0"))) void f() {}

// CHECK: warning: ignoring the 'branch-protection' attribute because the 'cortex-m0' architecture does not support it [-Wbranch-protection]
// CHECK-NEXT: __attribute__((target("arch=cortex-m0"))) void f() {}

/// Check there are no branch protection function attributes

// CHECK-NOT:  attributes { {{.*}} "sign-return-address"
// CHECK-NOT:  attributes { {{.*}} "sign-return-address-key"
// CHECK-NOT:  attributes { {{.*}} "branch-target-enforcement"

/// Check that there are branch protection module attributes despite the warning.
// CHECK: !{i32 8, !"branch-target-enforcement", i32 1}