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rs6000-c.c (altivec_resolve_overloaded_builtin): Issue a warning message when vec_lvsl or vec_lvsr is used with a little endian... 

[gcc]

2014-10-03  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	* config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
	Issue a warning message when vec_lvsl or vec_lvsr is used with a
	little endian target.

[gcc/testsuite]

2014-10-03  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	* g++.dg/ext/altivec-2.C: Compile with -Wno-deprecated to avoid
	failing with the new warning message.
	* gcc.dg/vmx/3c-01a.c: Likewise.
	* gcc.dg/vmx/ops-long-1.c: Likewise.
	* gcc.dg/vmx/ops.c: Likewise.
	* gcc.target/powerpc/altivec-20.c: Likewise.
	* gcc.target/powerpc/altivec-6.c: Likewise.
	* gcc.target/powerpc/altivec-vec-merge.c: Likewise.
	* gcc.target/powerpc/vsx-builtin-8.c: Likewise.
	* gcc.target/powerpc/warn-lvsl-lvsr.c: New test.

From-SVN: r215880
This commit is contained in:
Bill Schmidt 2014-10-03 21:32:20 +00:00 committed by William Schmidt
parent bb42836b34
commit 264f4afafc
12 changed files with 49 additions and 5 deletions
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6
gcc/ChangeLog
View File

@ -1,3 +1,9 @@
2014-10-03 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
* config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin):
Issue a warning message when vec_lvsl or vec_lvsr is used with a
little endian target.
2014-10-03 Manuel López-Ibáñez <manu@gcc.gnu.org>
* tree-pretty-print.c (dump_location): Make it extern. Dump also

8
gcc/config/rs6000/rs6000-c.c
View File

@ -4326,6 +4326,14 @@ altivec_resolve_overloaded_builtin (location_t loc, tree fndecl,
if (TARGET_DEBUG_BUILTIN)
fprintf (stderr, "altivec_resolve_overloaded_builtin, code = %4d, %s\n",
(int)fcode, IDENTIFIER_POINTER (DECL_NAME (fndecl)));
/* vec_lvsl and vec_lvsr are deprecated for use with LE element order. */
if (fcode == ALTIVEC_BUILTIN_VEC_LVSL && !VECTOR_ELT_ORDER_BIG)
warning (OPT_Wdeprecated, "vec_lvsl is deprecated for little endian; use \
assignment for unaligned loads and stores");
else if (fcode == ALTIVEC_BUILTIN_VEC_LVSR && !VECTOR_ELT_ORDER_BIG)
warning (OPT_Wdeprecated, "vec_lvsr is deprecated for little endian; use \
assignment for unaligned loads and stores");
/* For now treat vec_splats and vec_promote as the same. */
if (fcode == ALTIVEC_BUILTIN_VEC_SPLATS

13
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,16 @@
2014-10-03 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
* g++.dg/ext/altivec-2.C: Compile with -Wno-deprecated to avoid
failing with the new warning message.
* gcc.dg/vmx/3c-01a.c: Likewise.
* gcc.dg/vmx/ops-long-1.c: Likewise.
* gcc.dg/vmx/ops.c: Likewise.
* gcc.target/powerpc/altivec-20.c: Likewise.
* gcc.target/powerpc/altivec-6.c: Likewise.
* gcc.target/powerpc/altivec-vec-merge.c: Likewise.
* gcc.target/powerpc/vsx-builtin-8.c: Likewise.
* gcc.target/powerpc/warn-lvsl-lvsr.c: New test.
2014-10-03 Manuel López-Ibáñez <manu@gcc.gnu.org>
* gcc.dg/tm/debug-1.c: Update regex.

2
gcc/testsuite/g++.dg/ext/altivec-2.C
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@ -1,6 +1,6 @@
/* { dg-do compile { target powerpc*-*-* } } */
/* { dg-require-effective-target powerpc_altivec_ok } */
/* { dg-options "-maltivec -Wall -Wno-unused-but-set-variable" } */
/* { dg-options "-maltivec -Wall -Wno-unused-but-set-variable -Wno-deprecated" } */
/* This test checks if AltiVec builtins accept const-qualified
arguments. */

1
gcc/testsuite/gcc.dg/vmx/3c-01a.c
View File

@ -1,4 +1,5 @@
/* { dg-do compile } */
/* { dg-options "-Wno-deprecated" } */
#include <altivec.h>
typedef const volatile unsigned int _1;
typedef const unsigned int _2;

1
gcc/testsuite/gcc.dg/vmx/ops-long-1.c
View File

@ -1,4 +1,5 @@
/* { dg-do compile } */
/* { dg-options "-Wno-deprecated" } */
/* Checks from the original ops.c that pass pointers to long or
unsigned long for operations that support that in released versions

1
gcc/testsuite/gcc.dg/vmx/ops.c
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@ -1,4 +1,5 @@
/* { dg-do compile } */
/* { dg-options "-Wno-deprecated" } */
#include <altivec.h>
#include <stdlib.h>
extern char * *var_char_ptr;

2
gcc/testsuite/gcc.target/powerpc/altivec-20.c
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@ -1,5 +1,5 @@
/* { dg-do compile { target powerpc_altivec_ok } } */
/* { dg-options "-maltivec -mcpu=G5 -O2" } */
/* { dg-options "-maltivec -mcpu=G5 -O2 -Wno-deprecated" } */
#include <altivec.h>

2
gcc/testsuite/gcc.target/powerpc/altivec-6.c
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@ -1,6 +1,6 @@
/* { dg-do compile { target powerpc*-*-* } } */
/* { dg-require-effective-target powerpc_altivec_ok } */
/* { dg-options "-maltivec -O0 -Wall" } */
/* { dg-options "-maltivec -O0 -Wall -Wno-deprecated" } */
#include <altivec.h>

2
gcc/testsuite/gcc.target/powerpc/altivec-vec-merge.c
View File

@ -1,7 +1,7 @@
/* { dg-do run { target { powerpc*-*-* && vmx_hw } } } */
/* { dg-do compile { target { powerpc*-*-* && { ! vmx_hw } } } } */
/* { dg-require-effective-target powerpc_altivec_ok } */
/* { dg-options "-maltivec -O2" } */
/* { dg-options "-maltivec -O2 -Wno-deprecated" } */
#include <altivec.h>

2
gcc/testsuite/gcc.target/powerpc/vsx-builtin-8.c
View File

@ -1,7 +1,7 @@
/* { dg-do compile { target { powerpc*-*-* } } } */
/* { dg-skip-if "" { powerpc*-*-darwin* } { "*" } { "" } } */
/* { dg-require-effective-target powerpc_vsx_ok } */
/* { dg-options "-O3 -mcpu=power7" } */
/* { dg-options "-O3 -mcpu=power7 -Wno-deprecated" } */
/* Test the various load/store varients. */

14
gcc/testsuite/gcc.target/powerpc/warn-lvsl-lvsr.c Normal file
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@ -0,0 +1,14 @@
/* Test for deprecation messages on use of lvsl and lvsr for little endian. */
/* { dg-do compile { target { powerpc64le-*-* } } } */
/* { dg-options "-O0 -Wdeprecated" } */
#include <altivec.h>
float f[20];
void foo ()
{
vector unsigned char a = vec_lvsl (4, f); /* { dg-warning "vec_lvsl is deprecated for little endian; use assignment for unaligned loads and stores" } */
vector unsigned char b = vec_lvsr (8, f); /* { dg-warning "vec_lvsr is deprecated for little endian; use assignment for unaligned loads and stores" } */
}