From: Weiming Zhao <weimingz@codeaurora.org>
Date: Mon, 30 Sep 2013 22:51:32 +0000 (+0000)
Subject: Fix PR 12730: Add _GCC_HAVE_SYNC_COMPARE_AND_SWAP macros for ARM
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=8712ded79d0e80e6a4158682f78626637ad90a7a;p=clang

Fix PR 12730: Add _GCC_HAVE_SYNC_COMPARE_AND_SWAP macros for ARM



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@191707 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Basic/Targets.cpp b/lib/Basic/Targets.cpp
index 3ee9cd48b5..9c26521b72 100644
--- a/lib/Basic/Targets.cpp
+++ b/lib/Basic/Targets.cpp
@@ -3862,6 +3862,13 @@ public:
 
     if (CPUArch.startswith("8"))
       Builder.defineMacro("__ARM_FEATURE_CRC32");
+
+    if (CPUArch[0] >= '6' && CPUArch != "6M") {
+      Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_1");
+      Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_2");
+      Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4");
+      Builder.defineMacro("__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8");
+    }
   }
   virtual void getTargetBuiltins(const Builtin::Info *&Records,
                                  unsigned &NumRecords) const {
diff --git a/test/Preprocessor/predefined-macros.c b/test/Preprocessor/predefined-macros.c
index 94671f3335..11449f930e 100644
--- a/test/Preprocessor/predefined-macros.c
+++ b/test/Preprocessor/predefined-macros.c
@@ -44,3 +44,21 @@
 // CHECK-SYNC_CAS_I586: __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2
 // CHECK-SYNC_CAS_I586: __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
 // CHECK-SYNC_CAS_I586: __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8
+//
+// RUN: %clang_cc1 %s -E -dM -o - -triple armv6 -target-cpu arm1136j-s \
+// RUN:   | FileCheck %s --check-prefix=CHECK-SYNC_CAS_ARM
+// CHECK-SYNC_CAS_ARM: __GCC_HAVE_SYNC_COMPARE_AND_SWAP_1
+// CHECK-SYNC_CAS_ARM: __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2
+// CHECK-SYNC_CAS_ARM: __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
+// CHECK-SYNC_CAS_ARM: __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8
+//
+// RUN: %clang_cc1 %s -E -dM -o - -triple armv7 -target-cpu cortex-a8 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-SYNC_CAS_ARMv7
+// CHECK-SYNC_CAS_ARMv7: __GCC_HAVE_SYNC_COMPARE_AND_SWAP_1
+// CHECK-SYNC_CAS_ARMv7: __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2
+// CHECK-SYNC_CAS_ARMv7: __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
+// CHECK-SYNC_CAS_ARMv7: __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8
+//
+// RUN: %clang_cc1 %s -E -dM -o - -triple armv6 -target-cpu cortex-m0 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-SYNC_CAS_ARMv6
+// CHECK-SYNC_CAS_ARMv6-NOT: __GCC_HAVE_SYNC_COMPARE_AND_SWAP