Hi,
On 6 February 2017 at 17:56, Richard Earnshaw (lists)
<richard.earns...@arm.com> wrote:
> On 06/02/17 15:54, Jiong Wang wrote:
>> On 06/02/17 15:26, Jan Hubicka wrote:
>>> I think it is not a regression, just the testcase if fragile and
>>> depends on outcome
>>> of ifcombine. It seems it was updated several time in the past. I am
>>> not quite
>>> sure what the test is testing.
>>
>> They are tring to make sure optimal stack adjustment decisions are made.
>>
>> Fix the testcases by disabling relevant transformation passes looks one
>> way to
>> me. The other way, might be more reliable, is we dump the decisions
>> made during
>> aarch64 frame layout if dump_file be true, and prefix the dump entry by
>> function
>> name to make it easier caught by dejagnu. We then scan rtl dump instead of
>> instructions.
>>
>>
>
> We only care that the epilogue instructions appear at least once. So
> for the epilogue we should probably just adjust the tests to use
> scan-assembler, rather than scan-assembler-times.
>
Here is a patch do to that, it also updates tests 8, 10 and 12 which
have similar
matching patterns.
OK?
> R.
gcc/testsuite/ChangeLog:
2017-02-07 Christophe Lyon <christophe.l...@linaro.org>
* gcc.target/aarch64/test_frame_1.c: Scan epilogue with
scan-assembler instead of scan-assembler-times.
* gcc.target/aarch64/test_frame_10.c: Likewise.
* gcc.target/aarch64/test_frame_12.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.
diff --git a/gcc/testsuite/gcc.target/aarch64/test_frame_1.c
b/gcc/testsuite/gcc.target/aarch64/test_frame_1.c
index e7c7255..f906b07 100644
--- a/gcc/testsuite/gcc.target/aarch64/test_frame_1.c
+++ b/gcc/testsuite/gcc.target/aarch64/test_frame_1.c
@@ -14,5 +14,5 @@ t_frame_pattern (test1, 200, )
t_frame_run (test1)
/* { dg-final { scan-assembler-times "str\tx30, \\\[sp, -\[0-9\]+\\\]!" 2 } }
*/
-/* { dg-final { scan-assembler-times "ldr\tx30, \\\[sp\\\], \[0-9\]+" 2 } } */
+/* { dg-final { scan-assembler "ldr\tx30, \\\[sp\\\], \[0-9\]+" } } */
diff --git a/gcc/testsuite/gcc.target/aarch64/test_frame_10.c
b/gcc/testsuite/gcc.target/aarch64/test_frame_10.c
index e23a4a8..c195050 100644
--- a/gcc/testsuite/gcc.target/aarch64/test_frame_10.c
+++ b/gcc/testsuite/gcc.target/aarch64/test_frame_10.c
@@ -15,5 +15,5 @@ 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 { scan-assembler-times "ldp\tx19, x30, \\\[sp, \[0-9\]+\\\]" 1 }
} */
+/* { dg-final { scan-assembler "ldp\tx19, x30, \\\[sp, \[0-9\]+\\\]" } } */
diff --git a/gcc/testsuite/gcc.target/aarch64/test_frame_12.c
b/gcc/testsuite/gcc.target/aarch64/test_frame_12.c
index 3d7d359..62761e7 100644
--- a/gcc/testsuite/gcc.target/aarch64/test_frame_12.c
+++ b/gcc/testsuite/gcc.target/aarch64/test_frame_12.c
@@ -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-times "ldp\tx29, x30, \\\[sp, \[0-9\]+\\\]" 1 }
} */
+/* { dg-final { scan-assembler "ldp\tx29, x30, \\\[sp, \[0-9\]+\\\]" } } */
diff --git a/gcc/testsuite/gcc.target/aarch64/test_frame_2.c
b/gcc/testsuite/gcc.target/aarch64/test_frame_2.c
index bbe201d..7e5df84 100644
--- a/gcc/testsuite/gcc.target/aarch64/test_frame_2.c
+++ b/gcc/testsuite/gcc.target/aarch64/test_frame_2.c
@@ -15,5 +15,5 @@ t_frame_run (test2)
/* { dg-final { scan-assembler-times "stp\tx19, x30, \\\[sp, -\[0-9\]+\\\]!" 1
} } */
-/* { dg-final { scan-assembler-times "ldp\tx19, x30, \\\[sp\\\], \[0-9\]+" 1 }
} */
+/* { dg-final { scan-assembler "ldp\tx19, x30, \\\[sp\\\], \[0-9\]+" } } */
diff --git a/gcc/testsuite/gcc.target/aarch64/test_frame_4.c
b/gcc/testsuite/gcc.target/aarch64/test_frame_4.c
index e32049e..ed13487 100644
--- a/gcc/testsuite/gcc.target/aarch64/test_frame_4.c
+++ b/gcc/testsuite/gcc.target/aarch64/test_frame_4.c
@@ -14,5 +14,5 @@ t_frame_pattern (test4, 400, "x19")
t_frame_run (test4)
/* { dg-final { scan-assembler-times "stp\tx19, x30, \\\[sp, -\[0-9\]+\\\]!" 1
} } */
-/* { dg-final { scan-assembler-times "ldp\tx19, x30, \\\[sp\\\], \[0-9\]+" 1 }
} */
+/* { dg-final { scan-assembler "ldp\tx19, x30, \\\[sp\\\], \[0-9\]+" } } */
diff --git a/gcc/testsuite/gcc.target/aarch64/test_frame_6.c
b/gcc/testsuite/gcc.target/aarch64/test_frame_6.c
index 6a753df..56259c9 100644
--- a/gcc/testsuite/gcc.target/aarch64/test_frame_6.c
+++ b/gcc/testsuite/gcc.target/aarch64/test_frame_6.c
@@ -14,6 +14,6 @@ t_frame_pattern (test6, 700, )
t_frame_run (test6)
/* { dg-final { scan-assembler-times "str\tx30, \\\[sp\\\]" 1 } } */
-/* { dg-final { scan-assembler-times "ldr\tx30, \\\[sp\\\]" 2 } } */
-/* { dg-final { scan-assembler-times "ldr\tx30, \\\[sp\\\]," 1 } } */
+/* { dg-final { scan-assembler "ldr\tx30, \\\[sp\\\]" } } */
+/* { dg-final { scan-assembler "ldr\tx30, \\\[sp\\\]," } } */
diff --git a/gcc/testsuite/gcc.target/aarch64/test_frame_7.c
b/gcc/testsuite/gcc.target/aarch64/test_frame_7.c
index f2a8713..9645279 100644
--- a/gcc/testsuite/gcc.target/aarch64/test_frame_7.c
+++ b/gcc/testsuite/gcc.target/aarch64/test_frame_7.c
@@ -14,5 +14,5 @@ t_frame_pattern (test7, 700, "x19")
t_frame_run (test7)
/* { dg-final { scan-assembler-times "stp\tx19, x30, \\\[sp]" 1 } } */
-/* { dg-final { scan-assembler-times "ldp\tx19, x30, \\\[sp\\\]" 1 } } */
+/* { dg-final { scan-assembler "ldp\tx19, x30, \\\[sp\\\]" } } */
diff --git a/gcc/testsuite/gcc.target/aarch64/test_frame_8.c
b/gcc/testsuite/gcc.target/aarch64/test_frame_8.c
index 9b6c693..75a68b4 100644
--- a/gcc/testsuite/gcc.target/aarch64/test_frame_8.c
+++ b/gcc/testsuite/gcc.target/aarch64/test_frame_8.c
@@ -13,5 +13,5 @@ t_frame_pattern_outgoing (test8, 700, , 8, a[8])
t_frame_run (test8)
/* { dg-final { scan-assembler-times "str\tx30, \\\[sp, \[0-9\]+\\\]" 1 } } */
-/* { dg-final { scan-assembler-times "ldr\tx30, \\\[sp, \[0-9\]+\\\]" 1 } } */
+/* { dg-final { scan-assembler "ldr\tx30, \\\[sp, \[0-9\]+\\\]" } } */
