mirror/gcc
2
0
Fork 0
mirror of git://gcc.gnu.org/git/gcc.git synced 2025-04-10 23:11:36 +08:00
Code Issues Packages Projects Releases Wiki Activity

Map "arch=corei7"/"arch=nehalem" to M_INTEL_COREI7

Browse Source 
After Intel processor name cleanup,

__attribute__ ((target("arch=corei7"))) is translated to PROCESSOR_NEHALEM
and mapped to M_INTEL_COREI7_NEHALEM.

__attribute__ ((target("arch=corei7")))

used to cover M_INTEL_COREI7_XXXX. Now it only covers M_INTEL_COREI7_NEHALEM.
We have PROCESSOR_SANDYBRIDGE and PROCESSOR_HASWELL.  But there is nothing
to mark Westmere and Ivy Bridge.  Since function versioning doesn't support
extra ISAs in Westmere and Ivy Bridge, we don't lose anything. The solution
is to map

__attribute__ ((target("arch=corei7")))

and

__attribute__ ((target("arch=nehalem")))

to M_INTEL_COREI7.

gcc/

	PR target/59601
	* config/i386/i386.c (get_builtin_code_for_version): Map
	PROCESSOR_NEHALEM to "corei7".

gcc/testsuite/

	PR target/59601
	* g++.dg/ext/mv14.C: New tests.
	* g++.dg/ext/mv15.C: Likewise.

From-SVN: r206212
This commit is contained in:
H.J. Lu 2013-12-26 06:47:15 -08:00
parent 1879e97f6c
commit 806ac50747
5 changed files with 102 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
gcc/ChangeLog
View File

@ -1,10 +1,16 @@
2013-12-26 H.J. Lu <hongjiu.lu@intel.com>
PR target/59601
* config/i386/i386.c (get_builtin_code_for_version): Map
PROCESSOR_NEHALEM to "corei7".
2013-12-26 Ganesh Gopalasubramanian <Ganesh.Gopalasubramanian@amd.com>
* config/i386/i386.c (get_builtin_code_for_version): Rename AMD
CPU names M_AMD_BOBCAT to M_AMD_BTVER1 and M_AMD_JAGUAR
to M_AMD_BTVER2.
(processor_model): Likewise.
(arch_names_table): Likewise.
* config/i386/i386.c (get_builtin_code_for_version): Rename AMD
CPU names M_AMD_BOBCAT to M_AMD_BTVER1 and M_AMD_JAGUAR
to M_AMD_BTVER2.
(processor_model): Likewise.
(arch_names_table): Likewise.
2013-12-26 Uros Bizjak <ubizjak@gmail.com>

5
gcc/config/i386/i386.c
View File

@ -30010,7 +30010,10 @@ get_builtin_code_for_version (tree decl, tree *predicate_list)
priority = P_PROC_SSSE3;
break;
case PROCESSOR_NEHALEM:
arg_str = "nehalem";
/* We translate "arch=corei7" and "arch=nehelam" to
"corei7" so that it will be mapped to M_INTEL_COREI7
as cpu type to cover all M_INTEL_COREI7_XXXs. */
arg_str = "corei7";
priority = P_PROC_SSE4_2;
break;
case PROCESSOR_SANDYBRIDGE:

7
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,10 @@
2013-12-26 Uros Bizjak <ubizjak@gmail.com>
H.J. Lu <hongjiu.lu@intel.com>
PR target/59601
* g++.dg/ext/mv14.C: New tests.
* g++.dg/ext/mv15.C: Likewise.
2013-12-25 Allan Sandfeld Jensen <sandfeld@kde.org>
PR target/59422

40
gcc/testsuite/g++.dg/ext/mv14.C Normal file
View File

@ -0,0 +1,40 @@
/* Test case to check if Multiversioning works. */
/* { dg-do run { target i?86-*-* x86_64-*-* } } */
/* { dg-require-ifunc "" } */
/* { dg-options "-O2 -fPIC" } */
#include <assert.h>
/* Default version. */
int foo (); // Extra declaration that is merged with the second one.
int foo () __attribute__ ((target("default")));
int foo () __attribute__ ((target("arch=corei7")));
int (*p)() = &foo;
int main ()
{
int val = foo ();
assert (val == (*p)());
/* Check in the exact same order in which the dispatching
is expected to happen. */
if (__builtin_cpu_is ("corei7"))
assert (val == 5);
else
assert (val == 0);
return 0;
}
int __attribute__ ((target("default")))
foo ()
{
return 0;
}
int __attribute__ ((target("arch=corei7")))
foo ()
{
return 5;
}

40
gcc/testsuite/g++.dg/ext/mv15.C Normal file
View File

@ -0,0 +1,40 @@
/* Test case to check if Multiversioning works. */
/* { dg-do run { target i?86-*-* x86_64-*-* } } */
/* { dg-require-ifunc "" } */
/* { dg-options "-O2 -fPIC" } */
#include <assert.h>
/* Default version. */
int foo (); // Extra declaration that is merged with the second one.
int foo () __attribute__ ((target("default")));
int foo () __attribute__ ((target("arch=nehalem")));
int (*p)() = &foo;
int main ()
{
int val = foo ();
assert (val == (*p)());
/* Check in the exact same order in which the dispatching
is expected to happen. */
if (__builtin_cpu_is ("corei7"))
assert (val == 5);
else
assert (val == 0);
return 0;
}
int __attribute__ ((target("default")))
foo ()
{
return 0;
}
int __attribute__ ((target("arch=nehalem")))
foo ()
{
return 5;
}