[AArch64] Fix frame tests

Improve the AArch64 frame tests - add -f(no-)omit-frame-pointer,
update checks and add missing tests.  As a result all tests now
pass. 

    gcc/testsuite/
	* gcc.target/aarch64/lr_free_2.c: Fix test.
	* gcc.target/aarch64/spill_1.c: Likewise.
	* gcc.target/aarch64/test_frame_11.c: Likewise.
	* gcc.target/aarch64/test_frame_12.c: Likewise.
	* gcc.target/aarch64/test_frame_13.c: Likewise.
	* gcc.target/aarch64/test_frame_14.c: Likewise.
	* gcc.target/aarch64/test_frame_15.c: Likewise.
	* gcc.target/aarch64/test_frame_3.c: Likewise.
	* gcc.target/aarch64/test_frame_5.c: Likewise.
	* gcc.target/aarch64/test_frame_9.c: Likewise.

From-SVN: r254814

gcc/testsuite/ChangeLog

+2017-11-16  Wilco Dijkstra  <wdijkstr@arm.com>
+
+	* gcc.target/aarch64/lr_free_2.c: Fix test.
+	* gcc.target/aarch64/spill_1.c: Likewise.
+	* gcc.target/aarch64/test_frame_11.c: Likewise.
+	* gcc.target/aarch64/test_frame_12.c: Likewise.
+	* gcc.target/aarch64/test_frame_13.c: Likewise.
+	* gcc.target/aarch64/test_frame_14.c: Likewise.
+	* gcc.target/aarch64/test_frame_15.c: Likewise.
+	* gcc.target/aarch64/test_frame_3.c: Likewise.
+	* gcc.target/aarch64/test_frame_5.c: Likewise.
+	* gcc.target/aarch64/test_frame_9.c: Likewise.
+
 2017-11-16  Paolo Carlini  <paolo.carlini@oracle.com>
 
 	PR c++/70383

gcc/testsuite/gcc.target/aarch64/lr_free_2.c

 /* { dg-do run } */
-/* { dg-options "-fno-inline -O2 -ffixed-x2 -ffixed-x3 -ffixed-x4 -ffixed-x5 -ffixed-x6 -ffixed-x7 -ffixed-x8 -ffixed-x9 -ffixed-x10 -ffixed-x11 -ffixed-x12 -ffixed-x13 -ffixed-x14 -ffixed-x15 -ffixed-x16 -ffixed-x17 -ffixed-x18 -ffixed-x19 -ffixed-x20 -ffixed-x21 -ffixed-x22 -ffixed-x23 -ffixed-x24 -ffixed-x25 -ffixed-x26 -ffixed-x27 -ffixed-x28 --save-temps -mgeneral-regs-only -fno-ipa-cp -fdump-rtl-ira" } */
+/* { dg-options "-fno-omit-frame-pointer -fno-inline -O2 -ffixed-x2 -ffixed-x3 -ffixed-x4 -ffixed-x5 -ffixed-x6 -ffixed-x7 -ffixed-x8 -ffixed-x9 -ffixed-x10 -ffixed-x11 -ffixed-x12 -ffixed-x13 -ffixed-x14 -ffixed-x15 -ffixed-x16 -ffixed-x17 -ffixed-x18 -ffixed-x19 -ffixed-x20 -ffixed-x21 -ffixed-x22 -ffixed-x23 -ffixed-x24 -ffixed-x25 -ffixed-x26 -ffixed-x27 -ffixed-x28 --save-temps -mgeneral-regs-only -fno-ipa-cp -fdump-rtl-ira" } */
 
 extern void abort ();
 

gcc/testsuite/gcc.target/aarch64/spill_1.c

@@ -14,5 +14,3 @@ foo (void)
 }
 
 /* { dg-final { scan-assembler-times {\tmovi\tv[0-9]+\.4s,} 2 } } */
-/* { dg-final { scan-assembler-not {\tldr\t} } } */
-/* { dg-final { scan-assembler-not {\tstr\t} } } */

gcc/testsuite/gcc.target/aarch64/test_frame_11.c

@@ -5,7 +5,7 @@
      * optimized code should use "stp !" for stack adjustment.  */
 
 /* { dg-do run } */
-/* { dg-options "-O2 --save-temps" } */
+/* { dg-options "-fno-omit-frame-pointer -O2 --save-temps" } */
 
 #include "test_frame_common.h"
 

gcc/testsuite/gcc.target/aarch64/test_frame_12.c

@@ -4,7 +4,7 @@
      * number of callee-save reg >= 2.  */
 
 /* { dg-do run } */
-/* { dg-options "-O2 --save-temps" } */
+/* { dg-options "-O2 -fomit-frame-pointer --save-temps" } */
 
 #include "test_frame_common.h"
 
@@ -14,5 +14,5 @@ t_frame_run (test12)
 /* { dg-final { scan-assembler-times "sub\tsp, sp, #\[0-9\]+" 1 } } */
 
 /* Check epilogue using no write-back.  */
-/* { dg-final { scan-assembler "ldp\tx29, x30, \\\[sp, \[0-9\]+\\\]" } } */
+/* { dg-final { scan-assembler "ldr\tx30, \\\[sp, \[0-9\]+\\\]" } } */
 

gcc/testsuite/gcc.target/aarch64/test_frame_13.c

@@ -5,7 +5,7 @@
      * Use a single stack adjustment, no writeback.  */
 
 /* { dg-do run } */
-/* { dg-options "-O2 --save-temps" } */
+/* { dg-options "-fno-omit-frame-pointer -O2 --save-temps" } */
 
 #include "test_frame_common.h"
 

gcc/testsuite/gcc.target/aarch64/test_frame_14.c

@@ -4,9 +4,12 @@
      * number of callee-save reg >= 2.  */
 
 /* { dg-do run } */
-/* { dg-options "-O2" } */
+/* { dg-options "-O2 -fno-omit-frame-pointer --save-temps" } */
 
 #include "test_frame_common.h"
 
 t_frame_pattern_outgoing (test14, 700, , 8, a[8])
 t_frame_run (test14)
+
+/* { dg-final { scan-assembler-times "sub\tsp, sp, #\[0-9\]+" 1 } } */
+/* { dg-final { scan-assembler-times "stp\tx29, x30, \\\[sp, \[0-9\]+\\\]" 1 } } */

gcc/testsuite/gcc.target/aarch64/test_frame_15.c

@@ -6,7 +6,7 @@
      * Use a single stack adjustment, no writeback.  */
 
 /* { dg-do run } */
-/* { dg-options "-O2 --save-temps" } */
+/* { dg-options "-fno-omit-frame-pointer -O2 --save-temps" } */
 
 #include "test_frame_common.h"
 

gcc/testsuite/gcc.target/aarch64/test_frame_3.c

@@ -6,9 +6,12 @@
      * we can't use "str !" 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 (test3, 400, )
 t_frame_run (test3)
+
+/* { dg-final { scan-assembler-times "sub\tsp, sp, #\[0-9\]+" 1 } } */
+/* { dg-final { scan-assembler "str\tx30, \\\[sp\\\]" } } */

gcc/testsuite/gcc.target/aarch64/test_frame_5.c

@@ -5,9 +5,12 @@
      * one subtraction of the whole frame size.  */
 
 /* { 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 (test5, 300, "x19", 8, a[8])
 t_frame_run (test5)
+
+/* { dg-final { scan-assembler-times "sub\tsp, sp, #\[0-9\]+" 1 } } */
+/* { dg-final { scan-assembler "stp\tx\[0-9\]+, x30, \\\[sp, \[0-9\]+\\\]" } } */

gcc/testsuite/gcc.target/aarch64/test_frame_9.c

@@ -4,14 +4,15 @@
      * total frame size > 512.
        area except outgoing <= 512
      * number of callee-saved reg = 1.
-     * Split stack adjustment into two subtractions.
-       the first subtractions couldn't be optimized
-       into "str !" as it's > 256.  */
+     * Use a single 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_outgoing (test9, 480, , 24, a[8], a[9], a[10])
 t_frame_run (test9)
+
+/* { dg-final { scan-assembler-times "sub\tsp, sp, #\[0-9\]+" 1 } } */
+/* { dg-final { scan-assembler "str\tx30, \\\[sp, \[0-9\]+\\\]" } } */