PowerPC: fix __builtin_eh_return_data_regno return

llvm-svn: 173188

diff --git a/clang/lib/Basic/Targets.cpp b/clang/lib/Basic/Targets.cpp
index c83165fc5e2bdaa676c33a25d484d95a76c198d4..084b6b364ebffa623c810eb84d41ae93e6347858 100644 (file)
--- a/clang/lib/Basic/Targets.cpp
+++ b/clang/lib/Basic/Targets.cpp
@@ -818,6 +818,11 @@ public:
   virtual const char *getClobbers() const {
     return "";
   }
+  int getEHDataRegisterNumber(unsigned RegNo) const {
+    if (RegNo == 0) return 3;
+    if (RegNo == 1) return 4;
+    return -1;
+  }
 };
 
 const Builtin::Info PPCTargetInfo::BuiltinInfo[] = {

diff --git a/clang/test/CodeGen/builtins-ppc.c b/clang/test/CodeGen/builtins-ppc.c
new file mode 100644 (file)
index 0000000..ee27a4c
--- /dev/null
+++ b/clang/test/CodeGen/builtins-ppc.c
@@ -0,0 +1,9 @@
+// REQUIRES: ppc32-registered-target
+// RUN: %clang_cc1 -triple powerpc-unknown-unknown -emit-llvm %s -o - | FileCheck %s
+
+void test_eh_return_data_regno()
+{
+  volatile int res;
+  res = __builtin_eh_return_data_regno(0);  // CHECK: store volatile i32 3
+  res = __builtin_eh_return_data_regno(1);  // CHECK: store volatile i32 4
+}