pbarrio created this revision. pbarrio added reviewers: olista01, samparker, aemerson. Herald added subscribers: kristof.beyls, javed.absar.
SSBS (Speculative Store Bypass Safe) is only mandatory from 8.5 onwards but is optional from Armv8.0-A. This patch adds testing for the ssbs command line option, added to allow enabling the feature in previous Armv8-A architectures to 8.5. Repository: rC Clang https://reviews.llvm.org/D54961 Files: test/Driver/aarch64-ssbs.c Index: test/Driver/aarch64-ssbs.c =================================================================== --- /dev/null +++ test/Driver/aarch64-ssbs.c @@ -0,0 +1,9 @@ +// RUN: %clang -### -target aarch64-none-none-eabi -march=armv8a+ssbs %s 2>&1 | FileCheck %s +// CHECK: "-target-feature" "+ssbs" + +// RUN: %clang -### -target aarch64-none-none-eabi -march=armv8a+nossbs %s 2>&1 | FileCheck %s --check-prefix=NOSSBS +// NOSSBS: "-target-feature" "-ssbs" + +// RUN: %clang -### -target aarch64-none-none-eabi %s 2>&1 | FileCheck %s --check-prefix=ABSENTSSBS +// ABSENTSSBS-NOT: "-target-feature" "+ssbs" +// ABSENTSSBS-NOT: "-target-feature" "-ssbs"
Index: test/Driver/aarch64-ssbs.c =================================================================== --- /dev/null +++ test/Driver/aarch64-ssbs.c @@ -0,0 +1,9 @@ +// RUN: %clang -### -target aarch64-none-none-eabi -march=armv8a+ssbs %s 2>&1 | FileCheck %s +// CHECK: "-target-feature" "+ssbs" + +// RUN: %clang -### -target aarch64-none-none-eabi -march=armv8a+nossbs %s 2>&1 | FileCheck %s --check-prefix=NOSSBS +// NOSSBS: "-target-feature" "-ssbs" + +// RUN: %clang -### -target aarch64-none-none-eabi %s 2>&1 | FileCheck %s --check-prefix=ABSENTSSBS +// ABSENTSSBS-NOT: "-target-feature" "+ssbs" +// ABSENTSSBS-NOT: "-target-feature" "-ssbs"
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