b0343a38a5
LTO objects might compiled with different `mbranch-protection` flags which will cause an error in the linker. Such a setup is allowed in the normal build with this change that is possible. Reviewed By: pcc Differential Revision: https://reviews.llvm.org/D123493
19 lines
829 B
C
19 lines
829 B
C
// REQUIRES: arm-registered-target
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/// Check warning for
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// RUN: %clang -target arm-arm-none-eabi -march=armv7-m -mbranch-protection=bti %s -S -emit-llvm -o - 2>&1 | FileCheck %s
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__attribute__((target("arch=cortex-m0"))) void f() {}
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// CHECK: warning: ignoring the 'branch-protection' attribute because the 'cortex-m0' architecture does not support it [-Wbranch-protection]
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// CHECK-NEXT: __attribute__((target("arch=cortex-m0"))) void f() {}
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/// Check there are no branch protection function attributes
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// CHECK-NOT: attributes { {{.*}} "sign-return-address"
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// CHECK-NOT: attributes { {{.*}} "sign-return-address-key"
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// CHECK-NOT: attributes { {{.*}} "branch-target-enforcement"
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/// Check that there are branch protection module attributes despite the warning.
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// CHECK: !{i32 8, !"branch-target-enforcement", i32 1}
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