Commit for Jiangning.

Add conditional compare support for Thumb2.

From-SVN: r178102

gcc/ChangeLog

+2011-08-26  Jiangning Liu  <jiangning.liu@arm.com>
+
+       * config/arm/arm.md (*ior_scc_scc): Enable for Thumb2 as well.
+       (*ior_scc_scc_cmp): Likewise
+       (*and_scc_scc): Likewise.
+       (*and_scc_scc_cmp): Likewise.
+       (*and_scc_scc_nodom): Likewise.
+       (*cmp_ite0, *cmp_ite1, *cmp_and, *cmp_ior): Handle Thumb2.
+
 2011-08-26  Jakub Jelinek  <jakub@redhat.com>
 
 	* rtlanal.c (nonzero_bits1): Handle CLRSB.

gcc/testsuite/ChangeLog

+2011-08-26  Jiangning Liu  <jiangning.liu@arm.com>
+
+       * gcc.target/arm/thumb2-cond-cmp-1.c: New.
+       * gcc.target/arm/thumb2-cond-cmp-2.c: Likewise.
+       * gcc.target/arm/thumb2-cond-cmp-3.c: Likewise.
+       * gcc.target/arm/thumb2-cond-cmp-4.c: Likewise.
+
 2011-08-26  Andrew Stubbs  <ams@codesourcery.com>
 
 	* gcc.target/arm/thumb2-replicated-constant1.c: New file.

gcc/testsuite/gcc.target/arm/thumb2-cond-cmp-1.c

+/* Use conditional compare */
+/* { dg-options "-O2" } */
+/* { dg-skip-if "" { arm_thumb1_ok } } */
+/* { dg-final { scan-assembler "cmpne" } } */
+
+int f(int i, int j) 
+{
+  if ( (i == '+') || (j == '-') ) {
+    return 1;
+  } else {
+    return 0;
+  }
+}

gcc/testsuite/gcc.target/arm/thumb2-cond-cmp-2.c

+/* Use conditional compare */                                                                                         
+/* { dg-options "-O2" } */
+/* { dg-skip-if "" { arm_thumb1_ok } } */
+/* { dg-final { scan-assembler "cmpeq" } } */
+
+int f(int i, int j) 
+{
+  if ( (i == '+') && (j == '-') ) {
+    return 1;
+  } else {
+    return 0;
+  }
+}

gcc/testsuite/gcc.target/arm/thumb2-cond-cmp-3.c

+/* Use conditional compare */                                                                                         
+/* { dg-options "-O2" } */
+/* { dg-skip-if "" { arm_thumb1_ok } } */
+/* { dg-final { scan-assembler "cmpgt" } } */
+
+int f(int i, int j)
+{
+  if ( (i >= '+') ? (j > '-') : 0)
+    return 1;
+  else
+    return 0;
+}

gcc/testsuite/gcc.target/arm/thumb2-cond-cmp-4.c

+/* Use conditional compare */                                                                                         
+/* { dg-options "-O2" } */
+/* { dg-skip-if "" { arm_thumb1_ok } } */
+/* { dg-final { scan-assembler "cmpgt" } } */
+
+int f(int i, int j)
+{
+  if ( (i >= '+') ? (j <= '-') : 1)
+    return 1;
+  else
+    return 0;
+}