From 1a6d6f053d80dcc7d772663fc8c4b36d8f3f0ef4 Mon Sep 17 00:00:00 2001 From: Pablo Barrio Date: Mon, 3 Dec 2018 14:40:37 +0000 Subject: [PATCH] [AArch64] Add command-line option for SSBS Summary: 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. Reviewers: olista01, samparker, aemerson Reviewed By: samparker Subscribers: javed.absar, kristof.beyls, cfe-commits Differential Revision: https://reviews.llvm.org/D54961 llvm-svn: 348142 --- clang/test/Driver/aarch64-ssbs.c | 9 +++++++++ 1 file changed, 9 insertions(+) create mode 100644 clang/test/Driver/aarch64-ssbs.c diff --git a/clang/test/Driver/aarch64-ssbs.c b/clang/test/Driver/aarch64-ssbs.c new file mode 100644 index 0000000..86c93ae --- /dev/null +++ b/clang/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" -- 2.7.4