[Lldb-commits] [lldb] r300670 - Fix TestRegisterVariables for clang/arm

[Pavel Labath via lldb-commits]

Author: labath
Date: Wed Apr 19 05:13:29 2017
New Revision: 300670

URL: http://llvm.org/viewvc/llvm-project?rev=300670&view=rev
Log:
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.

Modified:
    lldb/trunk/packages/Python/lldbsuite/test/lang/c/register_variables/test.c

Modified: lldb/trunk/packages/Python/lldbsuite/test/lang/c/register_variables/test.c
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/packages/Python/lldbsuite/test/lang/c/register_variables/test.c?rev=300670&r1=300669&r2=300670&view=diff
==============================================================================
--- lldb/trunk/packages/Python/lldbsuite/test/lang/c/register_variables/test.c (original)
+++ lldb/trunk/packages/Python/lldbsuite/test/lang/c/register_variables/test.c Wed Apr 19 05:13:29 2017
@@ -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;