[AArch64] Optimize prologue when there is no frame pointer.

From-SVN: r212999

9 files changed, 42 insertions, 8 deletions

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 42ac62f..901343c 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,15 @@
+2014-07-24  Jiong Wang  <jiong.wang@arm.com>
+
+	* gcc.target/aarch64/test_frame_1.c: Match optimized instruction
+	sequences.
+	* gcc.target/aarch64/test_frame_10.c: Likewise.
+	* gcc.target/aarch64/test_frame_2.c: Likewise.
+	* gcc.target/aarch64/test_frame_4.c: Likewise.
+	* gcc.target/aarch64/test_frame_6.c: Likewise.
+	* gcc.target/aarch64/test_frame_7.c: Likewise.
+	* gcc.target/aarch64/test_frame_8.c: Likewise.
+	* gcc.target/aarch64/test_fp_attribute_1.c: Likewise.
+
 2014-07-24  Martin Jambor  <mjambor@suse.cz>
 
 	PR ipa/61160
diff --git a/gcc/testsuite/gcc.target/aarch64/test_fp_attribute_1.c b/gcc/testsuite/gcc.target/aarch64/test_fp_attribute_1.c
index 7538250..960174a 100644
--- a/gcc/testsuite/gcc.target/aarch64/test_fp_attribute_1.c
+++ b/gcc/testsuite/gcc.target/aarch64/test_fp_attribute_1.c
@@ -21,6 +21,6 @@ non_leaf_2 (void)
   leaf ();
 }
 
-/* { dg-final { scan-assembler-times "str\tx30, \\\[sp\\\]" 2 } } */
+/* { dg-final { scan-assembler-times "str\tx30, \\\[sp, -\[0-9\]+\\\]!" 2 } } */
 
 /* { dg-final { cleanup-saved-temps } } */
diff --git a/gcc/testsuite/gcc.target/aarch64/test_frame_1.c b/gcc/testsuite/gcc.target/aarch64/test_frame_1.c
index feea7a2..e9d04aa 100644
--- a/gcc/testsuite/gcc.target/aarch64/test_frame_1.c
+++ b/gcc/testsuite/gcc.target/aarch64/test_frame_1.c
@@ -6,9 +6,12 @@
      * optimized code should use "str !" for stack adjustment.  */
 
 /* { dg-do run } */
-/* { dg-options "-O2 -fomit-frame-pointer" } */
+/* { dg-options "-O2 -fomit-frame-pointer --save-temps" } */
 
 #include "test_frame_common.h"
 
 t_frame_pattern (test1, 200, )
 t_frame_run (test1)
+
+/* { dg-final { scan-assembler-times "str\tx30, \\\[sp, -\[0-9\]+\\\]!" 2 } } */
+/* { dg-final { cleanup-saved-temps } } */
diff --git a/gcc/testsuite/gcc.target/aarch64/test_frame_10.c b/gcc/testsuite/gcc.target/aarch64/test_frame_10.c
index 2892c5f..b646a71 100644
--- a/gcc/testsuite/gcc.target/aarch64/test_frame_10.c
+++ b/gcc/testsuite/gcc.target/aarch64/test_frame_10.c
@@ -8,9 +8,12 @@
        the first subtractions could be optimized into "stp !".  */
 
 /* { dg-do run } */
-/* { dg-options "-O2 -fomit-frame-pointer" } */
+/* { dg-options "-O2 -fomit-frame-pointer --save-temps" } */
 
 #include "test_frame_common.h"
 
 t_frame_pattern_outgoing (test10, 480, "x19", 24, a[8], a[9], a[10])
 t_frame_run (test10)
+
+/* { dg-final { scan-assembler-times "stp\tx19, x30, \\\[sp, -\[0-9\]+\\\]!" 1 } } */
+/* { dg-final { cleanup-saved-temps } } */
diff --git a/gcc/testsuite/gcc.target/aarch64/test_frame_2.c b/gcc/testsuite/gcc.target/aarch64/test_frame_2.c
index aa15dae..b972664 100644
--- a/gcc/testsuite/gcc.target/aarch64/test_frame_2.c
+++ b/gcc/testsuite/gcc.target/aarch64/test_frame_2.c
@@ -6,9 +6,13 @@
      * optimized code should use "stp !" for stack adjustment.  */
 
 /* { dg-do run } */
-/* { dg-options "-O2 -fomit-frame-pointer" } */
+/* { dg-options "-O2 -fomit-frame-pointer --save-temps" } */
 
 #include "test_frame_common.h"
 
 t_frame_pattern (test2, 200, "x19")
 t_frame_run (test2)
+
+
+/* { dg-final { scan-assembler-times "stp\tx19, x30, \\\[sp, -\[0-9\]+\\\]!" 1 } } */
+/* { dg-final { cleanup-saved-temps } } */
diff --git a/gcc/testsuite/gcc.target/aarch64/test_frame_4.c b/gcc/testsuite/gcc.target/aarch64/test_frame_4.c
index c45e740..5a9a919 100644
--- a/gcc/testsuite/gcc.target/aarch64/test_frame_4.c
+++ b/gcc/testsuite/gcc.target/aarch64/test_frame_4.c
@@ -6,9 +6,12 @@
      * we can use "stp !" to optimize stack adjustment.  */
 
 /* { dg-do run } */
-/* { dg-options "-O2 -fomit-frame-pointer" } */
+/* { dg-options "-O2 -fomit-frame-pointer --save-temps" } */
 
 #include "test_frame_common.h"
 
 t_frame_pattern (test4, 400, "x19")
 t_frame_run (test4)
+
+/* { dg-final { scan-assembler-times "stp\tx19, x30, \\\[sp, -\[0-9\]+\\\]!" 1 } } */
+/* { dg-final { cleanup-saved-temps } } */
diff --git a/gcc/testsuite/gcc.target/aarch64/test_frame_6.c b/gcc/testsuite/gcc.target/aarch64/test_frame_6.c
index 54f646b..6056f57 100644
--- a/gcc/testsuite/gcc.target/aarch64/test_frame_6.c
+++ b/gcc/testsuite/gcc.target/aarch64/test_frame_6.c
@@ -7,9 +7,12 @@
        the second subtraction should use "str !".  */
 
 /* { dg-do run } */
-/* { dg-options "-O2 -fomit-frame-pointer" } */
+/* { dg-options "-O2 -fomit-frame-pointer --save-temps" } */
 
 #include "test_frame_common.h"
 
 t_frame_pattern (test6, 700, )
 t_frame_run (test6)
+
+/* { dg-final { scan-assembler-times "str\tx30, \\\[sp, -\[0-9\]+\\\]!" 2 } } */
+/* { dg-final { cleanup-saved-temps } } */
diff --git a/gcc/testsuite/gcc.target/aarch64/test_frame_7.c b/gcc/testsuite/gcc.target/aarch64/test_frame_7.c
index aa97bc0..991860c 100644
--- a/gcc/testsuite/gcc.target/aarch64/test_frame_7.c
+++ b/gcc/testsuite/gcc.target/aarch64/test_frame_7.c
@@ -7,9 +7,12 @@
        the second subtraction should use "stp !".  */
 
 /* { dg-do run } */
-/* { dg-options "-O2 -fomit-frame-pointer" } */
+/* { dg-options "-O2 -fomit-frame-pointer --save-temps" } */
 
 #include "test_frame_common.h"
 
 t_frame_pattern (test7, 700, "x19")
 t_frame_run (test7)
+
+/* { dg-final { scan-assembler-times "stp\tx19, x30, \\\[sp, -\[0-9\]+\\\]!" 1 } } */
+/* { dg-final { cleanup-saved-temps } } */
diff --git a/gcc/testsuite/gcc.target/aarch64/test_frame_8.c b/gcc/testsuite/gcc.target/aarch64/test_frame_8.c
index f75f080..4a4d93b 100644
--- a/gcc/testsuite/gcc.target/aarch64/test_frame_8.c
+++ b/gcc/testsuite/gcc.target/aarch64/test_frame_8.c
@@ -5,9 +5,12 @@
      * number of callee-saved reg == 1.  */
 
 /* { dg-do run } */
-/* { dg-options "-O2 -fomit-frame-pointer" } */
+/* { dg-options "-O2 -fomit-frame-pointer --save-temps" } */
 
 #include "test_frame_common.h"
 
 t_frame_pattern_outgoing (test8, 700, , 8, a[8])
 t_frame_run (test8)
+
+/* { dg-final { scan-assembler-times "str\tx30, \\\[sp, -\[0-9\]+\\\]!" 3 } } */
+/* { dg-final { cleanup-saved-temps } } */