Fix TestRegisterVariables for clang/arm

Clang rejects __attribute__((regparm)) when targetting arm. The default
calling convention passes arguments in registers anyway, so we can just
remove them in this case.

llvm-svn: 300670

1 files changed, 11 insertions, 2 deletions

diff --git a/lldb/packages/Python/lldbsuite/test/lang/c/register_variables/test.c b/lldb/packages/Python/lldbsuite/test/lang/c/register_variables/test.c
index 476c32899ed..b95253ef9ee 100644
--- a/lldb/packages/Python/lldbsuite/test/lang/c/register_variables/test.c
+++ b/lldb/packages/Python/lldbsuite/test/lang/c/register_variables/test.c
@@ -1,17 +1,26 @@
 #include <stdio.h>
 
+#if defined(__arm__) || defined(__aarch64__)
+// Clang does not accept regparm attribute on these platforms.
+// Fortunately, the default calling convention passes arguments in registers
+// anyway.
+#define REGPARM(N)
+#else
+#define REGPARM(N) __attribute__((regparm(N)))
+#endif
+
 struct bar {
   int m1;
   int m2;
 };
 
-void f1(int a, struct bar *b) __attribute__((noinline)) __attribute__((regparm(2)));
+void f1(int a, struct bar *b) __attribute__((noinline)) REGPARM(2);
 void f1(int a, struct bar *b)
 {
   b->m2 = b->m1 + a; // set breakpoint here
 }
 
-void f2(struct bar *b) __attribute__((noinline)) __attribute__((regparm(1)));
+void f2(struct bar *b) __attribute__((noinline)) REGPARM(1);
 void f2(struct bar *b)
 {
   int c = b->m2;