Introduce arm_acle.h supporting existing LLVM builtin intrinsics

Summary: This patch introduces ACLE header file, implementing extensions that can be directly mapped to existing Clang intrinsics. It implements for both AArch32 and AArch64.

Reviewers: t.p.northover, compnerd, rengolin

Reviewed By: compnerd, rengolin

Subscribers: rnk, echristo, compnerd, aemerson, mroth, cfe-commits

Differential Revision: http://reviews.llvm.org/D4296

llvm-svn: 211962

1 files changed, 16 insertions, 0 deletions

diff --git a/clang/test/Sema/arm_acle.c b/clang/test/Sema/arm_acle.c
new file mode 100644
index 00000000000..0bdbdce2a96
--- /dev/null
+++ b/clang/test/Sema/arm_acle.c
@@ -0,0 +1,16 @@
+// RUN: %clang_cc1 -triple armv8 -target-cpu cortex-a57 -fsyntax-only -verify %s
+
+#include <arm_acle.h>
+
+/*
+ * Saturating intrinsics
+ * Second argument for SSAT and USAT intrinsics must be compile-time constant,
+ * otherwise an error should be raised.
+ */
+int32_t test_ssat_const_diag(int32_t t, const int32_t v) {
+  return __ssat(t, v);  // expected-error-re {{argument to {{.*}} must be a constant integer}}
+}
+
+int32_t test_usat_const_diag(int32_t t, const int32_t v) {
+  return __usat(t, v);  // expected-error-re {{argument to {{.*}} must be a constant integer}}
+}