re PR target/43920 (Choosing conditional execution over conditional branches for…

re PR target/43920 (Choosing conditional execution over conditional branches for code size in some cases.)

2011-04-05  Tom de Vries  <tom@codesourcery.com>

	PR target/43920
	* gcc.target/arm/pr43920-1.c: New test.

From-SVN: r171986

gcc/testsuite/ChangeLog

+2011-04-05  Tom de Vries  <tom@codesourcery.com>
+
+	PR target/43920
+	* gcc.target/arm/pr43920-1.c: New test.
+
 2011-04-04  Yufeng Zhang  <yufeng.zhang@arm.com>
 
         * g++.dg/abi/arm_cxa_vec1.C (__ARM_EABI__): Fix typo.

gcc/testsuite/gcc.target/arm/pr43920-1.c

+/* { dg-do compile } */
+/* { dg-options "-mthumb -Os" }  */
+/* { dg-require-effective-target arm_thumb2_ok } */
+
+int
+f (int start, int end, int *start_)
+{
+  if (start == -1 || end == -1)
+    return -1;
+
+  if (end - start)
+    return -1;
+
+  *start_ = start;
+
+  return 0;
+}
+
+/* { dg-final { scan-assembler-times "\torr" 0 } } */
+/* { dg-final { scan-assembler-times "\tit\t" 0 } } */
+/* { dg-final { scan-assembler "\tbeq" } } */
+/* { dg-do compile } */
+/* { dg-options "-mthumb -Os" }  */
+/* { dg-require-effective-target arm_thumb2_ok } */
+
+int
+f (int start, int end, int *start_)
+{
+  if (start == -1 || end == -1)
+    return -1;
+
+  if (end - start)
+    return -1;
+
+  *start_ = start;
+
+  return 0;
+}
+
+/* { dg-final { scan-assembler-times "\torr" 0 } } */
+/* { dg-final { scan-assembler-times "\tit\t" 0 } } */
+/* { dg-final { scan-assembler "\tbeq" } } */