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Re: [PATCH, ARM] Implement __ARM_FEATURE_COPROC coprocessor intrinsic feature macro


On 26 June 2017 at 16:09, Thomas Preudhomme
<thomas.preudhomme@foss.arm.com> wrote:
> Hi Christophe,
>
>
> On 21/06/17 17:57, Christophe Lyon wrote:
>>
>> Hi,
>>
>>
>> On 19 June 2017 at 11:32, Richard Earnshaw (lists)
>> <Richard.Earnshaw@arm.com> wrote:
>>>
>>> On 16/06/17 15:56, Prakhar Bahuguna wrote:
>>>>
>>>> On 16/06/2017 15:37:18, Richard Earnshaw (lists) wrote:
>>>>>
>>>>> On 16/06/17 08:48, Prakhar Bahuguna wrote:
>>>>>>
>>>>>> On 15/06/2017 17:23:43, Richard Earnshaw (lists) wrote:
>>>>>>>
>>>>>>> On 14/06/17 10:35, Prakhar Bahuguna wrote:
>>>>>>>>
>>>>>>>> The ARM ACLE defines the __ARM_FEATURE_COPROC macro which indicates
>>>>>>>> which
>>>>>>>> coprocessor intrinsics are available for the target. If
>>>>>>>> __ARM_FEATURE_COPROC is
>>>>>>>> undefined, the target does not support coprocessor intrinsics. The
>>>>>>>> feature
>>>>>>>> levels are defined as follows:
>>>>>>>>
>>>>>>>>
>>>>>>>> +---------+-----------+--------------------------------------------------+
>>>>>>>> | **Bit** | **Value** | **Intrinsics Available**
>>>>>>>> |
>>>>>>>>
>>>>>>>> +---------+-----------+--------------------------------------------------+
>>>>>>>> | 0       | 0x1       | __arm_cdp __arm_ldc, __arm_ldcl, __arm_stc,
>>>>>>>> |
>>>>>>>> |         |           | __arm_stcl, __arm_mcr and __arm_mrc
>>>>>>>> |
>>>>>>>>
>>>>>>>> +---------+-----------+--------------------------------------------------+
>>>>>>>> | 1       | 0x2       | __arm_cdp2, __arm_ldc2, __arm_stc2,
>>>>>>>> __arm_ldc2l, |
>>>>>>>> |         |           | __arm_stc2l, __arm_mcr2 and __arm_mrc2
>>>>>>>> |
>>>>>>>>
>>>>>>>> +---------+-----------+--------------------------------------------------+
>>>>>>>> | 2       | 0x4       | __arm_mcrr and __arm_mrrc
>>>>>>>> |
>>>>>>>>
>>>>>>>> +---------+-----------+--------------------------------------------------+
>>>>>>>> | 3       | 0x8       | __arm_mcrr2 and __arm_mrrc2
>>>>>>>> |
>>>>>>>>
>>>>>>>> +---------+-----------+--------------------------------------------------+
>>>>>>>>
>>>>>>>> This patch implements full support for this feature macro as defined
>>>>>>>> in section
>>>>>>>> 5.9 of the ACLE
>>>>>>>>
>>>>>>>> (https://developer.arm.com/products/software-development-tools/compilers/arm-compiler-5/docs/101028/latest/5-feature-test-macros).
>>>>>>>>
>>>>>>>> gcc/ChangeLog:
>>>>>>>>
>>>>>>>> 2017-06-14  Prakhar Bahuguna  <prakhar.bahuguna@arm.com>
>>>>>>>>
>>>>>>>>    * config/arm/arm-c.c (arm_cpu_builtins): New block to define
>>>>>>>>     __ARM_FEATURE_COPROC according to support.
>>>>>>>>
>>>>>>>> 2017-06-14  Prakhar Bahuguna  <prakhar.bahuguna@arm.com>
>>>>>>>>    * gcc/testsuite/gcc.target/arm/acle/cdp.c: Add feature macro
>>>>>>>> bitmap
>>>>>>>>    test.
>>>>>>>>    * gcc/testsuite/gcc.target/arm/acle/cdp2.c: Likewise.
>>>>>>>>    * gcc/testsuite/gcc.target/arm/acle/ldc.c: Likewise.
>>>>>>>>    * gcc/testsuite/gcc.target/arm/acle/ldc2.c: Likewise.
>>>>>>>>    * gcc/testsuite/gcc.target/arm/acle/ldc2l.c: Likewise.
>>>>>>>>    * gcc/testsuite/gcc.target/arm/acle/ldcl.c: Likewise.
>>>>>>>>    * gcc/testsuite/gcc.target/arm/acle/mcr.c: Likewise.
>>>>>>>>    * gcc/testsuite/gcc.target/arm/acle/mcr2.c: Likewise.
>>>>>>>>    * gcc/testsuite/gcc.target/arm/acle/mcrr.c: Likewise.
>>>>>>>>    * gcc/testsuite/gcc.target/arm/acle/mcrr2.c: Likewise.
>>>>>>>>    * gcc/testsuite/gcc.target/arm/acle/mrc.c: Likewise.
>>>>>>>>    * gcc/testsuite/gcc.target/arm/acle/mrc2.c: Likewise.
>>>>>>>>    * gcc/testsuite/gcc.target/arm/acle/mrrc.c: Likewise.
>>>>>>>>    * gcc/testsuite/gcc.target/arm/acle/mrrc2.c: Likewise.
>>>>>>>>    * gcc/testsuite/gcc.target/arm/acle/stc.c: Likewise.
>>>>>>>>    * gcc/testsuite/gcc.target/arm/acle/stc2.c: Likewise.
>>>>>>>>    * gcc/testsuite/gcc.target/arm/acle/stc2l.c: Likewise.
>>>>>>>>    * gcc/testsuite/gcc.target/arm/acle/stcl.c: Likewise.
>>>>>>>>
>>>>>>>> Testing done: ACLE regression tests updated with tests for feature
>>>>>>>> macro bits.
>>>>>>>> All regression tests pass.
>>>>>>>>
>>>>>>>> Okay for trunk?
>>>>>>>>
>>>>>>>>
>>>>>>>> 0001-Implement-__ARM_FEATURE_COPROC-coprocessor-intrinsic.patch
>>>>>>>>
>>>>>>>>
>>>>>>>>  From 79d71aec9d2bdee936b240ae49368ff5f8d8fc48 Mon Sep 17 00:00:00
>>>>>>>> 2001
>>>>>>>> From: Prakhar Bahuguna <prakhar.bahuguna@arm.com>
>>>>>>>> Date: Tue, 2 May 2017 13:43:40 +0100
>>>>>>>> Subject: [PATCH] Implement __ARM_FEATURE_COPROC coprocessor
>>>>>>>> intrinsic feature
>>>>>>>>   macro
>>>>>>>>
>>>>>>>> ---
>>>>>>>>   gcc/config/arm/arm-c.c                    | 19 +++++++++++++++++++
>>>>>>>>   gcc/testsuite/gcc.target/arm/acle/cdp.c   |  3 +++
>>>>>>>>   gcc/testsuite/gcc.target/arm/acle/cdp2.c  |  3 +++
>>>>>>>>   gcc/testsuite/gcc.target/arm/acle/ldc.c   |  3 +++
>>>>>>>>   gcc/testsuite/gcc.target/arm/acle/ldc2.c  |  3 +++
>>>>>>>>   gcc/testsuite/gcc.target/arm/acle/ldc2l.c |  3 +++
>>>>>>>>   gcc/testsuite/gcc.target/arm/acle/ldcl.c  |  3 +++
>>>>>>>>   gcc/testsuite/gcc.target/arm/acle/mcr.c   |  3 +++
>>>>>>>>   gcc/testsuite/gcc.target/arm/acle/mcr2.c  |  3 +++
>>>>>>>>   gcc/testsuite/gcc.target/arm/acle/mcrr.c  |  3 +++
>>>>>>>>   gcc/testsuite/gcc.target/arm/acle/mcrr2.c |  3 +++
>>>>>>>>   gcc/testsuite/gcc.target/arm/acle/mrc.c   |  3 +++
>>>>>>>>   gcc/testsuite/gcc.target/arm/acle/mrc2.c  |  3 +++
>>>>>>>>   gcc/testsuite/gcc.target/arm/acle/mrrc.c  |  3 +++
>>>>>>>>   gcc/testsuite/gcc.target/arm/acle/mrrc2.c |  3 +++
>>>>>>>>   gcc/testsuite/gcc.target/arm/acle/stc.c   |  3 +++
>>>>>>>>   gcc/testsuite/gcc.target/arm/acle/stc2.c  |  3 +++
>>>>>>>>   gcc/testsuite/gcc.target/arm/acle/stc2l.c |  3 +++
>>>>>>>>   gcc/testsuite/gcc.target/arm/acle/stcl.c  |  3 +++
>>>>>>>>   19 files changed, 73 insertions(+)
>>>>>>>>
>>>>>>>> diff --git a/gcc/config/arm/arm-c.c b/gcc/config/arm/arm-c.c
>>>>>>>> index 3abe7d1f1f5..3daf4e5e1f3 100644
>>>>>>>> --- a/gcc/config/arm/arm-c.c
>>>>>>>> +++ b/gcc/config/arm/arm-c.c
>>>>>>>> @@ -200,6 +200,25 @@ arm_cpu_builtins (struct cpp_reader* pfile)
>>>>>>>>     def_or_undef_macro (pfile, "__ARM_FEATURE_IDIV", TARGET_IDIV);
>>>>>>>>
>>>>>>>>     def_or_undef_macro (pfile, "__ARM_ASM_SYNTAX_UNIFIED__",
>>>>>>>> inline_asm_unified);
>>>>>>>> +
>>>>>>>> +  if ((!TARGET_THUMB || TARGET_THUMB2) && arm_arch4 &&
>>>>>>>
>>>>>>>
>>>>>>> (!TARGET_THUMB || TARGET_THUMB2) looks to me to be equivalent to
>>>>>>> TARGET_32BIT.  That should be used in preference.
>>>>>>
>>>>>> TARGET_32BIT is defined to be (TARGET_ARM || arm_arch_thumb2). This is
>>>>>> not true
>>>>>> for ARMv8-M Baseline which supports neither ARM mode nor the full
>>>>>> Thumb2 mode,
>>>>>> so this alternative is used.
>>>>>
>>>>>
>>>>> That's irrelevant since that case is caught by the arm_arch_notm test.
>>>>>
>>>>> #define TARGET_32BIT                    (TARGET_ARM || arm_arch_thumb2)
>>>>> #define TARGET_THUMB2                   (TARGET_THUMB &&
>>>>> arm_arch_thumb2)
>>>>> #define TARGET_ARM                      (! TARGET_THUMB)
>>>>>
>>>>> So (!TARGET_THUMB || TARGET_THUMB2)
>>>>>   = (!TARGET_THUMB || (TARGET_THUMB && arm_arch_thumb2))
>>>>>    = ((!TARGET_THUMB || TARGET_THUMB) && (!TARGET_THUMB ||
>>>>> arm_arch_thumb2))
>>>>>     = (1 && (!TARGET_THUMB || arm_arch_thumb2))
>>>>>      = (!TARGET_THUMB || arm_arch_thumb2)
>>>>>       = (TARGET_ARM || arm_arch_thumb2)
>>>>>        = TARGET_32BIT
>>>>>
>>>>> Please use the latter.
>>>>>
>>>>>> The same conditional is used by arm_acle.h.
>>>>>
>>>>>
>>>>> A patch to fix that is pre-approved.
>>>>>
>>>>>
>>>>>>
>>>>>>> Why the test for arm_arch4?  Co-processor instructions in ARM state
>>>>>>> go
>>>>>>> back to the dawn of time.
>>>>>>
>>>>>> In arm_acle.h, the coprocessor intrinsics are only enabled for ARMv4
>>>>>> and above,
>>>>>> hence the macro is only available when the intrinsics are available.
>>>>>>
>>>>>>> GNU coding style requires operators on multi-line statements to be at
>>>>>>> the start of the continuation lines, not at the end of lines.
>>>>>>>
>>>>>>>> +      !(arm_arch8 && arm_arch_notm))
>>>>>>>> +    {
>>>>>>>> +      int coproc_level = 0x1;
>>>>>>>> +
>>>>>>>> +      if (arm_arch5)
>>>>>>>> + coproc_level |= 0x2;
>>>>>>>> +      if (arm_arch5e)
>>>>>>>> + coproc_level |= 0x4;
>>>>>>>> +      if (arm_arch6)
>>>>>>>> + coproc_level |= 0x8;
>>>>>>>> +
>>>>>>>> +      builtin_define_with_int_value ("__ARM_FEATURE_COPROC",
>>>>>>>> coproc_level);
>>>>>>>> +    }
>>>>>>>> +  else
>>>>>>>> +    {
>>>>>>>> +      cpp_undef (pfile, "__ARM_FEATURE_COPROC");
>>>>>>>> +    }
>>>>>>>
>>>>>>>
>>>>>>> Redundant braces around single statement.
>>>>>>>
>>>>>>> R.
>>>>>>
>>>>>>
>>>>>> Thanks, will fix these.
>>>>>>
>>>>>
>>>>
>>>> Updated to use TARGET_32BIT.
>>>>
>>>
>>> OK.
>>>
>>> R.
>>>
>>>>
>>>> 0001-Implement-__ARM_FEATURE_COPROC-coprocessor-intrinsic.patch
>>>>
>>>>
>>>>  From 2ebd3971c9fabab8afe3e516dc9fa0bebd55bf3e Mon Sep 17 00:00:00 2001
>>>> From: Prakhar Bahuguna <prakhar.bahuguna@arm.com>
>>>> Date: Tue, 2 May 2017 13:43:40 +0100
>>>> Subject: [PATCH] Implement __ARM_FEATURE_COPROC coprocessor intrinsic
>>>> feature
>>>>   macro
>>>>
>>>> ---
>>>>   gcc/config/arm/arm-c.c                    | 16 ++++++++++++++++
>>>>   gcc/testsuite/gcc.target/arm/acle/cdp.c   |  3 +++
>>>>   gcc/testsuite/gcc.target/arm/acle/cdp2.c  |  3 +++
>>>>   gcc/testsuite/gcc.target/arm/acle/ldc.c   |  3 +++
>>>>   gcc/testsuite/gcc.target/arm/acle/ldc2.c  |  3 +++
>>>>   gcc/testsuite/gcc.target/arm/acle/ldc2l.c |  3 +++
>>>>   gcc/testsuite/gcc.target/arm/acle/ldcl.c  |  3 +++
>>>>   gcc/testsuite/gcc.target/arm/acle/mcr.c   |  3 +++
>>>>   gcc/testsuite/gcc.target/arm/acle/mcr2.c  |  3 +++
>>>>   gcc/testsuite/gcc.target/arm/acle/mcrr.c  |  3 +++
>>>>   gcc/testsuite/gcc.target/arm/acle/mcrr2.c |  3 +++
>>>>   gcc/testsuite/gcc.target/arm/acle/mrc.c   |  3 +++
>>>>   gcc/testsuite/gcc.target/arm/acle/mrc2.c  |  3 +++
>>>>   gcc/testsuite/gcc.target/arm/acle/mrrc.c  |  3 +++
>>>>   gcc/testsuite/gcc.target/arm/acle/mrrc2.c |  3 +++
>>>>   gcc/testsuite/gcc.target/arm/acle/stc.c   |  3 +++
>>>>   gcc/testsuite/gcc.target/arm/acle/stc2.c  |  3 +++
>>>>   gcc/testsuite/gcc.target/arm/acle/stc2l.c |  3 +++
>>>>   gcc/testsuite/gcc.target/arm/acle/stcl.c  |  3 +++
>>>>   19 files changed, 70 insertions(+)
>>>>
>>>> diff --git a/gcc/config/arm/arm-c.c b/gcc/config/arm/arm-c.c
>>>> index 3abe7d1f1f5..a3daa3220a2 100644
>>>> --- a/gcc/config/arm/arm-c.c
>>>> +++ b/gcc/config/arm/arm-c.c
>>>> @@ -200,6 +200,22 @@ arm_cpu_builtins (struct cpp_reader* pfile)
>>>>     def_or_undef_macro (pfile, "__ARM_FEATURE_IDIV", TARGET_IDIV);
>>>>
>>>>     def_or_undef_macro (pfile, "__ARM_ASM_SYNTAX_UNIFIED__",
>>>> inline_asm_unified);
>>>> +
>>>> +  if (TARGET_32BIT && arm_arch4 && !(arm_arch8 && arm_arch_notm))
>>
>>
>> I think the condition is wrong: if one uses -march=armv8-a, the
>> modified testcases fail with
>> __ARM_FEATURE_COPROC does not have correct feature bits set
>>
>> The attached patch changes the above condition into:
>> +  if (TARGET_32BIT && arm_arch4 && !(arm_arch8 && !arm_arch_notm))
>> (which is not very readable with all the negations....)
>
>
> That seems wrong. ARMv8-A was intended, not ARMv8-R. However the tests
> should be fixed for the macro not to be tested on ARMv8-A. I'll provide a
> fix to this effect.
>

You mean the macro is expected not to be defined on ARMv8-A ?

> Best regards,
>
> Thomas
>
>
>>
>> With this, the tests pass with -march=armv8-a (or when the compiler is
>> built --with-cpu=cortex-a57).
>>
>> OK?
>>
>> Thanks,
>>
>> Christophe
>>
>>
>>>> +    {
>>>> +      int coproc_level = 0x1;
>>>> +
>>>> +      if (arm_arch5)
>>>> +     coproc_level |= 0x2;
>>>> +      if (arm_arch5e)
>>>> +     coproc_level |= 0x4;
>>>> +      if (arm_arch6)
>>>> +     coproc_level |= 0x8;
>>>> +
>>>> +      builtin_define_with_int_value ("__ARM_FEATURE_COPROC",
>>>> coproc_level);
>>>> +    }
>>>> +  else
>>>> +      cpp_undef (pfile, "__ARM_FEATURE_COPROC");
>>>>   }
>>>>
>>>>   void
>>>> diff --git a/gcc/testsuite/gcc.target/arm/acle/cdp.c
>>>> b/gcc/testsuite/gcc.target/arm/acle/cdp.c
>>>> index 28b218e7cfc..cebd8c4024e 100644
>>>> --- a/gcc/testsuite/gcc.target/arm/acle/cdp.c
>>>> +++ b/gcc/testsuite/gcc.target/arm/acle/cdp.c
>>>> @@ -5,6 +5,9 @@
>>>>   /* { dg-require-effective-target arm_coproc1_ok } */
>>>>
>>>>   #include "arm_acle.h"
>>>> +#if (__ARM_FEATURE_COPROC & 0x1) == 0
>>>> +  #error "__ARM_FEATURE_COPROC does not have correct feature bits set"
>>>> +#endif
>>>>
>>>>   void test_cdp (void)
>>>>   {
>>>> diff --git a/gcc/testsuite/gcc.target/arm/acle/cdp2.c
>>>> b/gcc/testsuite/gcc.target/arm/acle/cdp2.c
>>>> index 00bcd502b56..945d435d2fb 100644
>>>> --- a/gcc/testsuite/gcc.target/arm/acle/cdp2.c
>>>> +++ b/gcc/testsuite/gcc.target/arm/acle/cdp2.c
>>>> @@ -5,6 +5,9 @@
>>>>   /* { dg-require-effective-target arm_coproc2_ok } */
>>>>
>>>>   #include "arm_acle.h"
>>>> +#if (__ARM_FEATURE_COPROC & 0x2) == 0
>>>> +  #error "__ARM_FEATURE_COPROC does not have correct feature bits set"
>>>> +#endif
>>>>
>>>>   void test_cdp2 (void)
>>>>   {
>>>> diff --git a/gcc/testsuite/gcc.target/arm/acle/ldc.c
>>>> b/gcc/testsuite/gcc.target/arm/acle/ldc.c
>>>> index f45f25d8c97..cd57343208f 100644
>>>> --- a/gcc/testsuite/gcc.target/arm/acle/ldc.c
>>>> +++ b/gcc/testsuite/gcc.target/arm/acle/ldc.c
>>>> @@ -5,6 +5,9 @@
>>>>   /* { dg-require-effective-target arm_coproc1_ok } */
>>>>
>>>>   #include "arm_acle.h"
>>>> +#if (__ARM_FEATURE_COPROC & 0x1) == 0
>>>> +  #error "__ARM_FEATURE_COPROC does not have correct feature bits set"
>>>> +#endif
>>>>
>>>>   extern void * p;
>>>>
>>>> diff --git a/gcc/testsuite/gcc.target/arm/acle/ldc2.c
>>>> b/gcc/testsuite/gcc.target/arm/acle/ldc2.c
>>>> index 433bf8a1204..d7691e30d76 100644
>>>> --- a/gcc/testsuite/gcc.target/arm/acle/ldc2.c
>>>> +++ b/gcc/testsuite/gcc.target/arm/acle/ldc2.c
>>>> @@ -5,6 +5,9 @@
>>>>   /* { dg-require-effective-target arm_coproc2_ok } */
>>>>
>>>>   #include "arm_acle.h"
>>>> +#if (__ARM_FEATURE_COPROC & 0x2) == 0
>>>> +  #error "__ARM_FEATURE_COPROC does not have correct feature bits set"
>>>> +#endif
>>>>
>>>>   extern void * p;
>>>>
>>>> diff --git a/gcc/testsuite/gcc.target/arm/acle/ldc2l.c
>>>> b/gcc/testsuite/gcc.target/arm/acle/ldc2l.c
>>>> index 88c8aa44765..9ee63afa055 100644
>>>> --- a/gcc/testsuite/gcc.target/arm/acle/ldc2l.c
>>>> +++ b/gcc/testsuite/gcc.target/arm/acle/ldc2l.c
>>>> @@ -5,6 +5,9 @@
>>>>   /* { dg-require-effective-target arm_coproc2_ok } */
>>>>
>>>>   #include "arm_acle.h"
>>>> +#if (__ARM_FEATURE_COPROC & 0x2) == 0
>>>> +  #error "__ARM_FEATURE_COPROC does not have correct feature bits set"
>>>> +#endif
>>>>
>>>>   extern void * p;
>>>>
>>>> diff --git a/gcc/testsuite/gcc.target/arm/acle/ldcl.c
>>>> b/gcc/testsuite/gcc.target/arm/acle/ldcl.c
>>>> index 72a97f1d7b7..a6bfd9011dc 100644
>>>> --- a/gcc/testsuite/gcc.target/arm/acle/ldcl.c
>>>> +++ b/gcc/testsuite/gcc.target/arm/acle/ldcl.c
>>>> @@ -5,6 +5,9 @@
>>>>   /* { dg-require-effective-target arm_coproc1_ok } */
>>>>
>>>>   #include "arm_acle.h"
>>>> +#if (__ARM_FEATURE_COPROC & 0x1) == 0
>>>> +  #error "__ARM_FEATURE_COPROC does not have correct feature bits set"
>>>> +#endif
>>>>
>>>>   extern void * p;
>>>>
>>>> diff --git a/gcc/testsuite/gcc.target/arm/acle/mcr.c
>>>> b/gcc/testsuite/gcc.target/arm/acle/mcr.c
>>>> index 93f977a2bdb..7095dcbc3ad 100644
>>>> --- a/gcc/testsuite/gcc.target/arm/acle/mcr.c
>>>> +++ b/gcc/testsuite/gcc.target/arm/acle/mcr.c
>>>> @@ -5,6 +5,9 @@
>>>>   /* { dg-require-effective-target arm_coproc1_ok } */
>>>>
>>>>   #include "arm_acle.h"
>>>> +#if (__ARM_FEATURE_COPROC & 0x1) == 0
>>>> +  #error "__ARM_FEATURE_COPROC does not have correct feature bits set"
>>>> +#endif
>>>>
>>>>   void test_mcr (uint32_t a)
>>>>   {
>>>> diff --git a/gcc/testsuite/gcc.target/arm/acle/mcr2.c
>>>> b/gcc/testsuite/gcc.target/arm/acle/mcr2.c
>>>> index 5b60d10ff25..2a4b0ce4559 100644
>>>> --- a/gcc/testsuite/gcc.target/arm/acle/mcr2.c
>>>> +++ b/gcc/testsuite/gcc.target/arm/acle/mcr2.c
>>>> @@ -5,6 +5,9 @@
>>>>   /* { dg-require-effective-target arm_coproc2_ok } */
>>>>
>>>>   #include "arm_acle.h"
>>>> +#if (__ARM_FEATURE_COPROC & 0x2) == 0
>>>> +  #error "__ARM_FEATURE_COPROC does not have correct feature bits set"
>>>> +#endif
>>>>
>>>>   void test_mcr2 (uint32_t a)
>>>>   {
>>>> diff --git a/gcc/testsuite/gcc.target/arm/acle/mcrr.c
>>>> b/gcc/testsuite/gcc.target/arm/acle/mcrr.c
>>>> index dcc223c713d..bcfbe1a4855 100644
>>>> --- a/gcc/testsuite/gcc.target/arm/acle/mcrr.c
>>>> +++ b/gcc/testsuite/gcc.target/arm/acle/mcrr.c
>>>> @@ -5,6 +5,9 @@
>>>>   /* { dg-require-effective-target arm_coproc3_ok } */
>>>>
>>>>   #include "arm_acle.h"
>>>> +#if (__ARM_FEATURE_COPROC & 0x4) == 0
>>>> +  #error "__ARM_FEATURE_COPROC does not have correct feature bits set"
>>>> +#endif
>>>>
>>>>   void test_mcrr (uint64_t a)
>>>>   {
>>>> diff --git a/gcc/testsuite/gcc.target/arm/acle/mcrr2.c
>>>> b/gcc/testsuite/gcc.target/arm/acle/mcrr2.c
>>>> index 10f2014d447..afd07e67f21 100644
>>>> --- a/gcc/testsuite/gcc.target/arm/acle/mcrr2.c
>>>> +++ b/gcc/testsuite/gcc.target/arm/acle/mcrr2.c
>>>> @@ -5,6 +5,9 @@
>>>>   /* { dg-require-effective-target arm_coproc4_ok } */
>>>>
>>>>   #include "arm_acle.h"
>>>> +#if (__ARM_FEATURE_COPROC & 0x8) == 0
>>>> +  #error "__ARM_FEATURE_COPROC does not have correct feature bits set"
>>>> +#endif
>>>>
>>>>   void test_mcrr2 (uint64_t a)
>>>>   {
>>>> diff --git a/gcc/testsuite/gcc.target/arm/acle/mrc.c
>>>> b/gcc/testsuite/gcc.target/arm/acle/mrc.c
>>>> index 34ca6a1638c..809b6c9c265 100644
>>>> --- a/gcc/testsuite/gcc.target/arm/acle/mrc.c
>>>> +++ b/gcc/testsuite/gcc.target/arm/acle/mrc.c
>>>> @@ -5,6 +5,9 @@
>>>>   /* { dg-require-effective-target arm_coproc1_ok } */
>>>>
>>>>   #include "arm_acle.h"
>>>> +#if (__ARM_FEATURE_COPROC & 0x1) == 0
>>>> +  #error "__ARM_FEATURE_COPROC does not have correct feature bits set"
>>>> +#endif
>>>>
>>>>   uint32_t test_mrc (void)
>>>>   {
>>>> diff --git a/gcc/testsuite/gcc.target/arm/acle/mrc2.c
>>>> b/gcc/testsuite/gcc.target/arm/acle/mrc2.c
>>>> index 3b72a402224..4c06ea39b37 100644
>>>> --- a/gcc/testsuite/gcc.target/arm/acle/mrc2.c
>>>> +++ b/gcc/testsuite/gcc.target/arm/acle/mrc2.c
>>>> @@ -5,6 +5,9 @@
>>>>   /* { dg-require-effective-target arm_coproc2_ok } */
>>>>
>>>>   #include "arm_acle.h"
>>>> +#if (__ARM_FEATURE_COPROC & 0x2) == 0
>>>> +  #error "__ARM_FEATURE_COPROC does not have correct feature bits set"
>>>> +#endif
>>>>
>>>>   uint32_t test_mrc2 (void)
>>>>   {
>>>> diff --git a/gcc/testsuite/gcc.target/arm/acle/mrrc.c
>>>> b/gcc/testsuite/gcc.target/arm/acle/mrrc.c
>>>> index 28c3b8ea6b5..802de083d5c 100644
>>>> --- a/gcc/testsuite/gcc.target/arm/acle/mrrc.c
>>>> +++ b/gcc/testsuite/gcc.target/arm/acle/mrrc.c
>>>> @@ -5,6 +5,9 @@
>>>>   /* { dg-require-effective-target arm_coproc3_ok } */
>>>>
>>>>   #include "arm_acle.h"
>>>> +#if (__ARM_FEATURE_COPROC & 0x4) == 0
>>>> +  #error "__ARM_FEATURE_COPROC does not have correct feature bits set"
>>>> +#endif
>>>>
>>>>   uint64_t test_mrrc (void)
>>>>   {
>>>> diff --git a/gcc/testsuite/gcc.target/arm/acle/mrrc2.c
>>>> b/gcc/testsuite/gcc.target/arm/acle/mrrc2.c
>>>> index 5b7aab06222..adf39563e29 100644
>>>> --- a/gcc/testsuite/gcc.target/arm/acle/mrrc2.c
>>>> +++ b/gcc/testsuite/gcc.target/arm/acle/mrrc2.c
>>>> @@ -5,6 +5,9 @@
>>>>   /* { dg-require-effective-target arm_coproc4_ok } */
>>>>
>>>>   #include "arm_acle.h"
>>>> +#if (__ARM_FEATURE_COPROC & 0x8) == 0
>>>> +  #error "__ARM_FEATURE_COPROC does not have correct feature bits set"
>>>> +#endif
>>>>
>>>>   uint64_t test_mrrc2 (void)
>>>>   {
>>>> diff --git a/gcc/testsuite/gcc.target/arm/acle/stc.c
>>>> b/gcc/testsuite/gcc.target/arm/acle/stc.c
>>>> index 7c6e04fe0fe..2714f65787e 100644
>>>> --- a/gcc/testsuite/gcc.target/arm/acle/stc.c
>>>> +++ b/gcc/testsuite/gcc.target/arm/acle/stc.c
>>>> @@ -5,6 +5,9 @@
>>>>   /* { dg-require-effective-target arm_coproc1_ok } */
>>>>
>>>>   #include "arm_acle.h"
>>>> +#if (__ARM_FEATURE_COPROC & 0x1) == 0
>>>> +  #error "__ARM_FEATURE_COPROC does not have correct feature bits set"
>>>> +#endif
>>>>
>>>>   extern void * p;
>>>>
>>>> diff --git a/gcc/testsuite/gcc.target/arm/acle/stc2.c
>>>> b/gcc/testsuite/gcc.target/arm/acle/stc2.c
>>>> index 1578f7b1136..0a84652e0f0 100644
>>>> --- a/gcc/testsuite/gcc.target/arm/acle/stc2.c
>>>> +++ b/gcc/testsuite/gcc.target/arm/acle/stc2.c
>>>> @@ -5,6 +5,9 @@
>>>>   /* { dg-require-effective-target arm_coproc2_ok } */
>>>>
>>>>   #include "arm_acle.h"
>>>> +#if (__ARM_FEATURE_COPROC & 0x2) == 0
>>>> +  #error "__ARM_FEATURE_COPROC does not have correct feature bits set"
>>>> +#endif
>>>>
>>>>   extern void * p;
>>>>
>>>> diff --git a/gcc/testsuite/gcc.target/arm/acle/stc2l.c
>>>> b/gcc/testsuite/gcc.target/arm/acle/stc2l.c
>>>> index 7adbd60d48a..2453d04ad72 100644
>>>> --- a/gcc/testsuite/gcc.target/arm/acle/stc2l.c
>>>> +++ b/gcc/testsuite/gcc.target/arm/acle/stc2l.c
>>>> @@ -5,6 +5,9 @@
>>>>   /* { dg-require-effective-target arm_coproc2_ok } */
>>>>
>>>>   #include "arm_acle.h"
>>>> +#if (__ARM_FEATURE_COPROC & 0x2) == 0
>>>> +  #error "__ARM_FEATURE_COPROC does not have correct feature bits set"
>>>> +#endif
>>>>
>>>>   extern void * p;
>>>>
>>>> diff --git a/gcc/testsuite/gcc.target/arm/acle/stcl.c
>>>> b/gcc/testsuite/gcc.target/arm/acle/stcl.c
>>>> index 2fd5edd02d7..affdaa27982 100644
>>>> --- a/gcc/testsuite/gcc.target/arm/acle/stcl.c
>>>> +++ b/gcc/testsuite/gcc.target/arm/acle/stcl.c
>>>> @@ -5,6 +5,9 @@
>>>>   /* { dg-require-effective-target arm_coproc1_ok } */
>>>>
>>>>   #include "arm_acle.h"
>>>> +#if (__ARM_FEATURE_COPROC & 0x1) == 0
>>>> +  #error "__ARM_FEATURE_COPROC does not have correct feature bits set"
>>>> +#endif
>>>>
>>>>   extern void * p;
>>>>
>>>>
>>>
>


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