* [gomp4] Add -foffload-abi support for PPC
@ 2015-10-06 16:38 ` James Norris
2015-10-07 8:02 ` Thomas Schwinge
0 siblings, 1 reply; 8+ messages in thread
From: James Norris @ 2015-10-06 16:38 UTC (permalink / raw)
To: gcc-patches
[-- Attachment #1: Type: text/plain, Size: 191 bytes --]
Hi,
The attached patch adds the -foffload-abi option support for PPC.
Only support for the 64-bit ABI has been added.
Committed after regtesting with x86_64 and powerpc64le.
Thanks!
Jim
[-- Attachment #2: offload.patch --]
[-- Type: text/x-patch, Size: 3755 bytes --]
diff --git a/gcc/ChangeLog.gomp b/gcc/ChangeLog.gomp
index a65e652..40326cf 100644
--- a/gcc/ChangeLog.gomp
+++ b/gcc/ChangeLog.gomp
@@ -1,3 +1,11 @@
+2015-10-06 James Norris <jnorris@codesourcery.com>
+
+ * common.opt (OFFLOAD_ABI_PPC64): New enum.
+ * config/nvptx/mkoffload.c (compile_native): Handle new enum.
+ (main): Handle new option.
+ * config/rs6000/rs6000.c (rs6000_offload_options): New hook.
+ * gcc/coretypes.h (OFFLOAD_ABI_PPC64): New enum.
+
2015-10-05 Thomas Schwinge <thomas@codesourcery.com>
* config/nvptx/mkoffload.c (main): Don't explicitly pass "-lgomp"
diff --git a/gcc/common.opt b/gcc/common.opt
index 290b6b3..c366667 100644
--- a/gcc/common.opt
+++ b/gcc/common.opt
@@ -1730,6 +1730,9 @@ Enum(offload_abi) String(ilp32) Value(OFFLOAD_ABI_ILP32)
EnumValue
Enum(offload_abi) String(lp64) Value(OFFLOAD_ABI_LP64)
+EnumValue
+Enum(offload_abi) String(ppc64) Value(OFFLOAD_ABI_PPC64)
+
fomit-frame-pointer
Common Report Var(flag_omit_frame_pointer) Optimization
When possible do not generate stack frames
diff --git a/gcc/config/nvptx/mkoffload.c b/gcc/config/nvptx/mkoffload.c
index e398b44..743df4b 100644
--- a/gcc/config/nvptx/mkoffload.c
+++ b/gcc/config/nvptx/mkoffload.c
@@ -367,6 +367,8 @@ compile_native (const char *infile, const char *outfile, const char *compiler)
case OFFLOAD_ABI_ILP32:
obstack_ptr_grow (&argv_obstack, "-m32");
break;
+ case OFFLOAD_ABI_PPC64:
+ break;
default:
gcc_unreachable ();
}
@@ -458,6 +460,8 @@ main (int argc, char **argv)
offload_abi = OFFLOAD_ABI_LP64;
else if (strcmp (argv[i] + strlen (STR), "ilp32") == 0)
offload_abi = OFFLOAD_ABI_ILP32;
+ else if (strcmp (argv[i] + strlen (STR), "ppc64") == 0)
+ offload_abi = OFFLOAD_ABI_PPC64;
else
fatal_error (input_location,
"unrecognizable argument of option " STR);
@@ -485,6 +489,8 @@ main (int argc, char **argv)
case OFFLOAD_ABI_ILP32:
obstack_ptr_grow (&argv_obstack, "-m32");
break;
+ case OFFLOAD_ABI_PPC64:
+ break;
default:
gcc_unreachable ();
}
@@ -518,7 +524,8 @@ main (int argc, char **argv)
/* PR libgomp/65099: Currently, we only support offloading in 64-bit
configurations, and only for OpenACC offloading. */
- if (offload_abi == OFFLOAD_ABI_LP64 && fopenacc)
+ if ((offload_abi == OFFLOAD_ABI_LP64
+ || (offload_abi == OFFLOAD_ABI_PPC64)) && fopenacc)
{
ptx_name = make_temp_file (".mkoffload");
obstack_ptr_grow (&argv_obstack, "-o");
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index 023f622..146b45b 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -1688,6 +1688,9 @@ static const struct attribute_spec rs6000_attribute_table[] =
#define TARGET_LIBGCC_SHIFT_COUNT_MODE rs6000_abi_word_mode
#undef TARGET_UNWIND_WORD_MODE
#define TARGET_UNWIND_WORD_MODE rs6000_abi_word_mode
+
+#undef TARGET_OFFLOAD_OPTIONS
+#define TARGET_OFFLOAD_OPTIONS rs6000_offload_options
\f
/* Processor table. */
@@ -9532,6 +9535,13 @@ rs6000_abi_word_mode (void)
return TARGET_32BIT ? SImode : DImode;
}
+/* Implement the TARGET_OFFLOAD_OPTIONS hook. */
+static char *
+rs6000_offload_options (void)
+{
+ return xstrdup ("-foffload-abi=ppc64");
+}
+
/* On rs6000, function arguments are promoted, as are function return
values. */
diff --git a/gcc/coretypes.h b/gcc/coretypes.h
index 7b3df54..3bb0528 100644
--- a/gcc/coretypes.h
+++ b/gcc/coretypes.h
@@ -170,7 +170,8 @@ enum tls_model {
enum offload_abi {
OFFLOAD_ABI_UNSET,
OFFLOAD_ABI_LP64,
- OFFLOAD_ABI_ILP32
+ OFFLOAD_ABI_ILP32,
+ OFFLOAD_ABI_PPC64
};
/* Types of unwind/exception handling info that can be generated. */
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [gomp4] Add -foffload-abi support for PPC
2015-10-06 16:38 ` [gomp4] Add -foffload-abi support for PPC James Norris
@ 2015-10-07 8:02 ` Thomas Schwinge
2015-10-07 13:51 ` David Edelsohn
0 siblings, 1 reply; 8+ messages in thread
From: Thomas Schwinge @ 2015-10-07 8:02 UTC (permalink / raw)
To: James Norris, David Edelsohn; +Cc: gcc-patches
[-- Attachment #1: Type: text/plain, Size: 6274 bytes --]
Hi!
rs6000/powerpc port maintainer copied.
On Tue, 6 Oct 2015 11:38:04 -0500, James Norris <jnorris@codesourcery.com> wrote:
> The attached patch adds the -foffload-abi option support for PPC.
> Only support for the 64-bit ABI has been added.
(Yes, only powerpc64le-linux-gnu configurations can be supported.)
> Committed after regtesting with x86_64 and powerpc64le.
Such a patch needs to go into trunk. (It's of course OK to test-drive it
on gomp-4_0-branch first.)
However:
> + * common.opt (OFFLOAD_ABI_PPC64): New enum.
> + * config/nvptx/mkoffload.c (compile_native): Handle new enum.
> + (main): Handle new option.
> + * config/rs6000/rs6000.c (rs6000_offload_options): New hook.
> + * gcc/coretypes.h (OFFLOAD_ABI_PPC64): New enum.
> --- a/gcc/common.opt
> +++ b/gcc/common.opt
> @@ -1730,6 +1730,9 @@ Enum(offload_abi) String(ilp32) Value(OFFLOAD_ABI_ILP32)
> EnumValue
> Enum(offload_abi) String(lp64) Value(OFFLOAD_ABI_LP64)
>
> +EnumValue
> +Enum(offload_abi) String(ppc64) Value(OFFLOAD_ABI_PPC64)
> --- a/gcc/config/nvptx/mkoffload.c
> +++ b/gcc/config/nvptx/mkoffload.c
> @@ -367,6 +367,8 @@ compile_native (const char *infile, const char *outfile, const char *compiler)
> case OFFLOAD_ABI_ILP32:
> obstack_ptr_grow (&argv_obstack, "-m32");
> break;
> + case OFFLOAD_ABI_PPC64:
> + break;
> default:
> gcc_unreachable ();
> }
> @@ -458,6 +460,8 @@ main (int argc, char **argv)
> offload_abi = OFFLOAD_ABI_LP64;
> else if (strcmp (argv[i] + strlen (STR), "ilp32") == 0)
> offload_abi = OFFLOAD_ABI_ILP32;
> + else if (strcmp (argv[i] + strlen (STR), "ppc64") == 0)
> + offload_abi = OFFLOAD_ABI_PPC64;
> else
> fatal_error (input_location,
> "unrecognizable argument of option " STR);
> @@ -485,6 +489,8 @@ main (int argc, char **argv)
> case OFFLOAD_ABI_ILP32:
> obstack_ptr_grow (&argv_obstack, "-m32");
> break;
> + case OFFLOAD_ABI_PPC64:
> + break;
> default:
> gcc_unreachable ();
> }
> @@ -518,7 +524,8 @@ main (int argc, char **argv)
>
> /* PR libgomp/65099: Currently, we only support offloading in 64-bit
> configurations, and only for OpenACC offloading. */
> - if (offload_abi == OFFLOAD_ABI_LP64 && fopenacc)
> + if ((offload_abi == OFFLOAD_ABI_LP64
> + || (offload_abi == OFFLOAD_ABI_PPC64)) && fopenacc)
> {
> ptx_name = make_temp_file (".mkoffload");
> obstack_ptr_grow (&argv_obstack, "-o");
> --- a/gcc/config/rs6000/rs6000.c
> +++ b/gcc/config/rs6000/rs6000.c
> +#undef TARGET_OFFLOAD_OPTIONS
> +#define TARGET_OFFLOAD_OPTIONS rs6000_offload_options
> +/* Implement the TARGET_OFFLOAD_OPTIONS hook. */
> +static char *
> +rs6000_offload_options (void)
> +{
> + return xstrdup ("-foffload-abi=ppc64");
> +}
> --- a/gcc/coretypes.h
> +++ b/gcc/coretypes.h
> @@ -170,7 +170,8 @@ enum tls_model {
> enum offload_abi {
> OFFLOAD_ABI_UNSET,
> OFFLOAD_ABI_LP64,
> - OFFLOAD_ABI_ILP32
> + OFFLOAD_ABI_ILP32,
> + OFFLOAD_ABI_PPC64
> };
No, that's not how I meant it to be done; I wrote:
| On Mon, 5 Oct 2015 07:06:55 -0500, James Norris <James_Norris@mentor.com> wrote:
| > [The -foffload-abi parameter] is not passed [to mkoffload] when using the
| > ppc compiler, and as a result the 'unreachable' assertion [in mkoffload]
| > went off.
|
| That's the bug: you need to pass this parameter: the target (a.k.a. host)
| and offload target (a.k.a. device) compilers need to agree on the ABI to
| use. This should be straightforward to do; see here:
|
| $ git grep -i offload.options -- gcc/config/i386/
| gcc/config/i386/i386.c:/* Implement the TARGET_OFFLOAD_OPTIONS hook. */
| gcc/config/i386/i386.c:ix86_offload_options (void)
| gcc/config/i386/i386.c:#undef TARGET_OFFLOAD_OPTIONS
| gcc/config/i386/i386.c:#define TARGET_OFFLOAD_OPTIONS \
| gcc/config/i386/i386.c: ix86_offload_options
|
| gcc/config/i386/i386.c:ix86_offload_options:
|
| /* Implement the TARGET_OFFLOAD_OPTIONS hook. */
| static char *
| ix86_offload_options (void)
| {
| if (TARGET_LP64)
| return xstrdup ("-foffload-abi=lp64");
| return xstrdup ("-foffload-abi=ilp32");
| }
|
| In case that PowerPC supports additional ABIs, you need to add these to
| gcc/coretypes.h:enum offload_abi, and adjust the parsing in the
| mkoffloads (I can easily test the IntelMIC mkoffload patch for you); of
| course we don't need to support anything but the 64-bit ABI (that you're
| currently already using, I suppose).
From a quick look at the *_TYPE_SIZE definitions in
gcc/config/rs6000/rs6000.h as well as
<http://refspecs.linuxfoundation.org/elf/elfspec_ppc.pdf>, "3-1
Fundamental Types", and
<http://refspecs.linuxfoundation.org/ELF/ppc64/PPC-elf64abi.html#FUND-TYPE>,
I gather we're dealing with regular ilp32/lp64 here. Then, I assume the
right thing is to use the 64BIT flag from gcc/config/rs6000/sysv4.opt
(which, per gcc/config.gcc I suppose is used for the relevant
powerpc64le-linux-gnu configuration). (David?)
I'm not sure where to place the TARGET_OFFLOAD_OPTIONS #define and the
function definition in rs6000.c. (David?)
So, please revert your patch and instead try the following.
--- gcc/config/rs6000/rs6000.c
+++ gcc/config/rs6000/rs6000.c
@@ -1688,6 +1688,9 @@ static const struct attribute_spec rs6000_attribute_table[] =
#define TARGET_LIBGCC_SHIFT_COUNT_MODE rs6000_abi_word_mode
#undef TARGET_UNWIND_WORD_MODE
#define TARGET_UNWIND_WORD_MODE rs6000_abi_word_mode
+
+#undef TARGET_OFFLOAD_OPTIONS
+#define TARGET_OFFLOAD_OPTIONS rs6000_offload_options
\f
/* Processor table. */
@@ -9532,6 +9535,16 @@ rs6000_abi_word_mode (void)
return TARGET_32BIT ? SImode : DImode;
}
+/* Implement the TARGET_OFFLOAD_OPTIONS hook. */
+static char *
+rs6000_offload_options (void)
+{
+ if (TARGET_64BIT)
+ return xstrdup ("-foffload-abi=lp64");
+ else
+ return xstrdup ("-foffload-abi=ilp32");
+}
+
/* On rs6000, function arguments are promoted, as are function return
values. */
Grüße,
Thomas
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 472 bytes --]
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [gomp4] Add -foffload-abi support for PPC
2015-10-07 8:02 ` Thomas Schwinge
@ 2015-10-07 13:51 ` David Edelsohn
2015-10-08 16:19 ` James Norris
0 siblings, 1 reply; 8+ messages in thread
From: David Edelsohn @ 2015-10-07 13:51 UTC (permalink / raw)
To: Thomas Schwinge, James Norris; +Cc: GCC Patches
On Wed, Oct 7, 2015 at 4:02 AM, Thomas Schwinge <thomas@codesourcery.com> wrote:
> From a quick look at the *_TYPE_SIZE definitions in
> gcc/config/rs6000/rs6000.h as well as
> <http://refspecs.linuxfoundation.org/elf/elfspec_ppc.pdf>, "3-1
> Fundamental Types", and
> <http://refspecs.linuxfoundation.org/ELF/ppc64/PPC-elf64abi.html#FUND-TYPE>,
> I gather we're dealing with regular ilp32/lp64 here. Then, I assume the
> right thing is to use the 64BIT flag from gcc/config/rs6000/sysv4.opt
> (which, per gcc/config.gcc I suppose is used for the relevant
> powerpc64le-linux-gnu configuration). (David?)
TARGET_64BIT is the appropriate macro to test.
>
> I'm not sure where to place the TARGET_OFFLOAD_OPTIONS #define and the
> function definition in rs6000.c. (David?)
As mentioned earlier, only PPC64LE is supported.
I'm not sure if it really matters if this is defined in ELF-specific
portion of the file or a general place, although it never will be
called by other configurations.
Thanks, David
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Add -foffload-abi support for PPC
2015-10-07 13:51 ` David Edelsohn
@ 2015-10-08 16:19 ` James Norris
2015-10-08 16:53 ` David Edelsohn
2015-10-08 16:55 ` Thomas Schwinge
0 siblings, 2 replies; 8+ messages in thread
From: James Norris @ 2015-10-08 16:19 UTC (permalink / raw)
To: David Edelsohn, Thomas Schwinge; +Cc: GCC Patches
[-- Attachment #1: Type: text/plain, Size: 1241 bytes --]
Hi!
On 10/07/2015 08:51 AM, David Edelsohn wrote:
> On Wed, Oct 7, 2015 at 4:02 AM, Thomas Schwinge <thomas@codesourcery.com> wrote:
>
>> From a quick look at the *_TYPE_SIZE definitions in
>> gcc/config/rs6000/rs6000.h as well as
>> <http://refspecs.linuxfoundation.org/elf/elfspec_ppc.pdf>, "3-1
>> Fundamental Types", and
>> <http://refspecs.linuxfoundation.org/ELF/ppc64/PPC-elf64abi.html#FUND-TYPE>,
>> I gather we're dealing with regular ilp32/lp64 here. Then, I assume the
>> right thing is to use the 64BIT flag from gcc/config/rs6000/sysv4.opt
>> (which, per gcc/config.gcc I suppose is used for the relevant
>> powerpc64le-linux-gnu configuration). (David?)
>
> TARGET_64BIT is the appropriate macro to test.
>
>>
>> I'm not sure where to place the TARGET_OFFLOAD_OPTIONS #define and the
>> function definition in rs6000.c. (David?)
>
> As mentioned earlier, only PPC64LE is supported.
>
> I'm not sure if it really matters if this is defined in ELF-specific
> portion of the file or a general place, although it never will be
> called by other configurations.
>
> Thanks, David
>
I've revised the patch from the review comments (thank you) and
is attached.
Regtested on x86_64 and powerpcle64.
OK for trunk?
Thanks!
Jim
[-- Attachment #2: ppc.patch --]
[-- Type: text/x-patch, Size: 848 bytes --]
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index e095f03..e775e9a 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -1690,6 +1690,9 @@ static const struct attribute_spec rs6000_attribute_table[] =
#define TARGET_LIBGCC_SHIFT_COUNT_MODE rs6000_abi_word_mode
#undef TARGET_UNWIND_WORD_MODE
#define TARGET_UNWIND_WORD_MODE rs6000_abi_word_mode
+
+#undef TARGET_OFFLOAD_OPTIONS
+#define TARGET_OFFLOAD_OPTIONS rs6000_offload_options
\f
/* Processor table. */
@@ -9530,6 +9533,13 @@ rs6000_abi_word_mode (void)
return TARGET_32BIT ? SImode : DImode;
}
+/* Implement the TARGET_OFFLOAD_OPTIONS hook. */
+static char *
+rs6000_offload_options (void)
+{
+ return xstrdup ("-foffload-abi=lp64");
+}
+
/* On rs6000, function arguments are promoted, as are function return
values. */
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Add -foffload-abi support for PPC
2015-10-08 16:19 ` James Norris
@ 2015-10-08 16:53 ` David Edelsohn
2015-10-09 12:20 ` James Norris
2015-10-08 16:55 ` Thomas Schwinge
1 sibling, 1 reply; 8+ messages in thread
From: David Edelsohn @ 2015-10-08 16:53 UTC (permalink / raw)
To: James Norris; +Cc: Thomas Schwinge, GCC Patches
On Thu, Oct 8, 2015 at 12:19 PM, James Norris <jnorris@codesourcery.com> wrote:
> I've revised the patch from the review comments (thank you) and
> is attached.
>
> Regtested on x86_64 and powerpcle64.
>
> OK for trunk?
What is the goal? Do you want this to return the correct value or only
the value for the supported 64 bit PPC64LE system?
Thanks, David
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Add -foffload-abi support for PPC
2015-10-08 16:19 ` James Norris
2015-10-08 16:53 ` David Edelsohn
@ 2015-10-08 16:55 ` Thomas Schwinge
1 sibling, 0 replies; 8+ messages in thread
From: Thomas Schwinge @ 2015-10-08 16:55 UTC (permalink / raw)
To: James Norris, David Edelsohn; +Cc: GCC Patches
[-- Attachment #1: Type: text/plain, Size: 2063 bytes --]
Hi!
On Thu, 8 Oct 2015 11:19:05 -0500, James Norris <jnorris@codesourcery.com> wrote:
> On 10/07/2015 08:51 AM, David Edelsohn wrote:
> > On Wed, Oct 7, 2015 at 4:02 AM, Thomas Schwinge <thomas@codesourcery.com> wrote:
> >
> >> From a quick look at the *_TYPE_SIZE definitions in
> >> gcc/config/rs6000/rs6000.h as well as
> >> <http://refspecs.linuxfoundation.org/elf/elfspec_ppc.pdf>, "3-1
> >> Fundamental Types", and
> >> <http://refspecs.linuxfoundation.org/ELF/ppc64/PPC-elf64abi.html#FUND-TYPE>,
> >> I gather we're dealing with regular ilp32/lp64 here. Then, I assume the
> >> right thing is to use the 64BIT flag from gcc/config/rs6000/sysv4.opt
> >> (which, per gcc/config.gcc I suppose is used for the relevant
> >> powerpc64le-linux-gnu configuration). (David?)
> >
> > TARGET_64BIT is the appropriate macro to test.
> >
> >>
> >> I'm not sure where to place the TARGET_OFFLOAD_OPTIONS #define and the
> >> function definition in rs6000.c. (David?)
> >
> > As mentioned earlier, only PPC64LE is supported.
> >
> > I'm not sure if it really matters if this is defined in ELF-specific
> > portion of the file or a general place, although it never will be
> > called by other configurations.
> >
> > Thanks, David
> >
>
> I've revised the patch from the review comments (thank you) and
> is attached.
>
> Regtested on x86_64 and powerpcle64.
>
> OK for trunk?
> --- a/gcc/config/rs6000/rs6000.c
> +++ b/gcc/config/rs6000/rs6000.c
> +/* Implement the TARGET_OFFLOAD_OPTIONS hook. */
> +static char *
> +rs6000_offload_options (void)
> +{
> + return xstrdup ("-foffload-abi=lp64");
> +}
Well, that's a stripped-down variant of what I had suggested:
static char *
rs6000_offload_options (void)
{
if (TARGET_64BIT)
return xstrdup ("-foffload-abi=lp64");
else
return xstrdup ("-foffload-abi=ilp32");
}
If you return -foffload-abi=lp64 unconditionally, strange things will
happen for -m32 compilation (ABI mismatch).
Grüße,
Thomas
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 472 bytes --]
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Add -foffload-abi support for PPC
2015-10-08 16:53 ` David Edelsohn
@ 2015-10-09 12:20 ` James Norris
2015-10-09 12:22 ` David Edelsohn
0 siblings, 1 reply; 8+ messages in thread
From: James Norris @ 2015-10-09 12:20 UTC (permalink / raw)
To: David Edelsohn; +Cc: Thomas Schwinge, GCC Patches
[-- Attachment #1: Type: text/plain, Size: 580 bytes --]
David,
On 10/08/2015 11:53 AM, David Edelsohn wrote:
> On Thu, Oct 8, 2015 at 12:19 PM, James Norris <jnorris@codesourcery.com> wrote:
>
>> I've revised the patch from the review comments (thank you) and
>> is attached.
>>
>> Regtested on x86_64 and powerpcle64.
>>
>> OK for trunk?
>
> What is the goal? Do you want this to return the correct value or only
> the value for the supported 64 bit PPC64LE system?
>
> Thanks, David
>
>
The goal is to support both 32-bit and 64-bit. There was some
confusion on my part, my apologies.
Attached is the corrected patch.
Thanks!
Jim
[-- Attachment #2: ppc.patch --]
[-- Type: text/x-patch, Size: 924 bytes --]
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index e095f03..8aac4f7 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -1690,6 +1690,9 @@ static const struct attribute_spec rs6000_attribute_table[] =
#define TARGET_LIBGCC_SHIFT_COUNT_MODE rs6000_abi_word_mode
#undef TARGET_UNWIND_WORD_MODE
#define TARGET_UNWIND_WORD_MODE rs6000_abi_word_mode
+
+#undef TARGET_OFFLOAD_OPTIONS
+#define TARGET_OFFLOAD_OPTIONS rs6000_offload_options
\f
/* Processor table. */
@@ -9530,6 +9533,16 @@ rs6000_abi_word_mode (void)
return TARGET_32BIT ? SImode : DImode;
}
+/* Implement the TARGET_OFFLOAD_OPTIONS hook. */
+static char *
+rs6000_offload_options (void)
+{
+ if (TARGET_64BIT)
+ return xstrdup ("-foffload-abi=lp64");
+ else
+ return xstrdup ("-foffload-abi=ilp32");
+}
+
/* On rs6000, function arguments are promoted, as are function return
values. */
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: Add -foffload-abi support for PPC
2015-10-09 12:20 ` James Norris
@ 2015-10-09 12:22 ` David Edelsohn
0 siblings, 0 replies; 8+ messages in thread
From: David Edelsohn @ 2015-10-09 12:22 UTC (permalink / raw)
To: James Norris; +Cc: Thomas Schwinge, GCC Patches
On Fri, Oct 9, 2015 at 8:20 AM, James Norris <jnorris@codesourcery.com> wrote:
> David,
>
>
> On 10/08/2015 11:53 AM, David Edelsohn wrote:
>>
>> On Thu, Oct 8, 2015 at 12:19 PM, James Norris <jnorris@codesourcery.com>
>> wrote:
>>
>>> I've revised the patch from the review comments (thank you) and
>>> is attached.
>>>
>>> Regtested on x86_64 and powerpcle64.
>>>
>>> OK for trunk?
>>
>>
>> What is the goal? Do you want this to return the correct value or only
>> the value for the supported 64 bit PPC64LE system?
>>
>> Thanks, David
>>
>>
>
> The goal is to support both 32-bit and 64-bit. There was some
> confusion on my part, my apologies.
>
> Attached is the corrected patch.
This version seems reasonable to me.
Thanks, David
^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2015-10-09 12:22 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
[not found] <87zizxcxnm.fsf@schwinge.name>
2015-10-06 16:38 ` [gomp4] Add -foffload-abi support for PPC James Norris
2015-10-07 8:02 ` Thomas Schwinge
2015-10-07 13:51 ` David Edelsohn
2015-10-08 16:19 ` James Norris
2015-10-08 16:53 ` David Edelsohn
2015-10-09 12:20 ` James Norris
2015-10-09 12:22 ` David Edelsohn
2015-10-08 16:55 ` Thomas Schwinge
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).