checkasm: Check register clobbering on arm

Use two separate functions, depending on whether VFP/NEON is available.

This is set to require armv5te - it uses blx, which is only available
since armv5t, but we don't have a separate configure item for that.
(It also uses ldrd, which requires armv5te, but this could be avoided
if necessary.)

Signed-off-by: Martin Storsjö <martin@martin.st>

1 files changed, 11 insertions, 0 deletions

diff --git a/tests/checkasm/checkasm.c b/tests/checkasm/checkasm.c
index d6f8ffc842..c75e431d50 100644
--- a/tests/checkasm/checkasm.c
+++ b/tests/checkasm/checkasm.c
@@ -53,6 +53,12 @@
 #define isatty(fd) 1
 #endif
 
+#if ARCH_ARM && HAVE_ARMV5TE_EXTERNAL
+#include "libavutil/arm/cpu.h"
+
+void (*checkasm_checked_call)(void *func, int dummy, ...) = checkasm_checked_call_novfp;
+#endif
+
 /* List of tests to invoke */
 static const struct {
     const char *name;
@@ -463,6 +469,11 @@ int main(int argc, char *argv[])
 {
     int i, seed, ret = 0;
 
+#if ARCH_ARM && HAVE_ARMV5TE_EXTERNAL
+    if (have_vfp(av_get_cpu_flags()) || have_neon(av_get_cpu_flags()))
+        checkasm_checked_call = checkasm_checked_call_vfp;
+#endif
+
     if (!tests[0].func || !cpus[0].flag) {
         fprintf(stderr, "checkasm: no tests to perform\n");
         return 0;