From 186b26d01f2876e8b4b1f0f233e13fc4c613cddc Mon Sep 17 00:00:00 2001
From: Weiming Zhao <weimingz@codeaurora.org>
Date: Tue, 12 Nov 2013 21:42:50 +0000
Subject: [PATCH] add intrinsics: __builtin_arm_{dmb,dsb} for ARM
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@194513 91177308-0d34-0410-b5e6-96231b3b80d8
---
include/clang/Basic/BuiltinsARM.def | 4 ++++
lib/Sema/SemaChecking.cpp | 2 ++
test/CodeGen/builtins-arm.c | 6 +++++-
3 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/include/clang/Basic/BuiltinsARM.def b/include/clang/Basic/BuiltinsARM.def
index 5a2b573b16..21bb892a8b 100644
--- a/include/clang/Basic/BuiltinsARM.def
+++ b/include/clang/Basic/BuiltinsARM.def
@@ -61,6 +61,10 @@ BUILTIN(__builtin_arm_crc32cd, "UiUiLLUi", "nc")
// HINT
BUILTIN(__builtin_arm_sevl, "v", "")
+// Data barrier
+BUILTIN(__builtin_arm_dmb, "vUi", "nc")
+BUILTIN(__builtin_arm_dsb, "vUi", "nc")
+
// NEON
#define GET_NEON_BUILTINS
#include "clang/Basic/arm_neon.inc"
diff --git a/lib/Sema/SemaChecking.cpp b/lib/Sema/SemaChecking.cpp
index 5fe2d03d1d..d059001f9b 100644
--- a/lib/Sema/SemaChecking.cpp
+++ b/lib/Sema/SemaChecking.cpp
@@ -624,6 +624,8 @@ bool Sema::CheckARMBuiltinFunctionCall(unsigned BuiltinID, CallExpr *TheCall) {
case ARM::BI__builtin_arm_usat: i = 1; u = 31; break;
case ARM::BI__builtin_arm_vcvtr_f:
case ARM::BI__builtin_arm_vcvtr_d: i = 1; u = 1; break;
+ case ARM::BI__builtin_arm_dmb:
+ case ARM::BI__builtin_arm_dsb: l = 0; u = 15; break;
#define GET_NEON_IMMEDIATE_CHECK
#include "clang/Basic/arm_neon.inc"
#undef GET_NEON_IMMEDIATE_CHECK
diff --git a/test/CodeGen/builtins-arm.c b/test/CodeGen/builtins-arm.c
index f8c7f730a9..937e1d9625 100644
--- a/test/CodeGen/builtins-arm.c
+++ b/test/CodeGen/builtins-arm.c
@@ -22,5 +22,9 @@ void test_eh_return_data_regno()
void sevl() {
__builtin_arm_sevl();
}
-
// CHECK: call {{.*}} @llvm.arm.sevl
+
+void test_barrier() {
+ __builtin_arm_dmb(1); //CHECK: call {{.*}} @llvm.arm.dmb(i32 1)
+ __builtin_arm_dsb(2); //CHECK: call {{.*}} @llvm.arm.dsb(i32 2)
+}
--
2.40.0