aboutsummaryrefslogtreecommitdiffstats
path: root/gcc-4.9/gcc/testsuite/gcc.target/avr/torture/pr61055.c
diff options
context:
space:
mode:
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.target/avr/torture/pr61055.c')
-rw-r--r--gcc-4.9/gcc/testsuite/gcc.target/avr/torture/pr61055.c88
1 files changed, 88 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.target/avr/torture/pr61055.c b/gcc-4.9/gcc/testsuite/gcc.target/avr/torture/pr61055.c
new file mode 100644
index 000000000..9dd1f427d
--- /dev/null
+++ b/gcc-4.9/gcc/testsuite/gcc.target/avr/torture/pr61055.c
@@ -0,0 +1,88 @@
+/* { dg-do run } */
+/* { dg-options { -fno-peephole2 } } */
+
+#include <stdlib.h>
+
+typedef __UINT16_TYPE__ uint16_t;
+typedef __INT16_TYPE__ int16_t;
+typedef __UINT8_TYPE__ uint8_t;
+
+uint8_t __attribute__((noinline,noclone))
+fun_inc (uint8_t c0)
+{
+ register uint8_t c asm ("r15") = c0;
+
+ /* Force target value into R15 (lower register) */
+ asm ("" : "+l" (c));
+
+ c++;
+ if (c >= 0x80)
+ c = 0;
+
+ asm ("" : "+l" (c));
+
+ return c;
+}
+
+uint8_t __attribute__((noinline,noclone))
+fun_dec (uint8_t c0)
+{
+ register uint8_t c asm ("r15") = c0;
+
+ /* Force target value into R15 (lower register) */
+ asm ("" : "+l" (c));
+
+ c--;
+ if (c < 0x80)
+ c = 0;
+
+ asm ("" : "+l" (c));
+
+ return c;
+}
+
+
+uint8_t __attribute__((noinline,noclone))
+fun_neg (uint8_t c0)
+{
+ register uint8_t c asm ("r15") = c0;
+
+ c = -c;
+ if (c >= 0x80)
+ c = 0;
+
+ return c;
+}
+
+uint16_t __attribute__((noinline,noclone))
+fun_adiw (uint16_t c0)
+{
+ register uint16_t c asm ("r24") = c0;
+
+ /* Force target value into R24 (for ADIW) */
+ asm ("" : "+r" (c));
+
+ c += 2;
+ if (c >= 0x8000)
+ c = 0;
+
+ asm ("" : "+r" (c));
+
+ return c;
+}
+
+
+int main()
+{
+ if (fun_inc (0x7f) != 0)
+ abort();
+
+ if (fun_neg (0x80) != 0)
+ abort();
+
+ if (fun_adiw (0x7ffe) != 0)
+ abort();
+
+ exit (0);
+ return 0;
+}