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rs6000-protos.h (rs6000_special_adjust_field_align_p): Add prototype.

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gcc/

	* config/rs6000/rs6000-protos.h (rs6000_special_adjust_field_align_p):
	Add prototype.
	* config/rs6000/rs6000.c (rs6000_special_adjust_field_align_p): New
	function.
	* config/rs6000/sysv4.h (ADJUST_FIELD_ALIGN): Call it.
	* config/rs6000/linux64.h (ADJUST_FIELD_ALIGN): Likewise.
	* config/rs6000/freebsd64.h (ADJUST_FIELD_ALIGN): Likewise.

gcc/testsuite/

	* gcc.target/powerpc/ppc64-abi-warn-3.c: New test.

	* gcc.c-torture/execute/20050316-1.x: Add -Wno-psabi.
	* gcc.c-torture/execute/20050604-1.x: Add -Wno-psabi.
	* gcc.c-torture/execute/20050316-3.x: New file.  Add -Wno-psabi.
	* gcc.c-torture/execute/pr23135.x: Likewise.

From-SVN: r213017
This commit is contained in:
Ulrich Weigand 2014-07-24 17:15:12 +00:00 committed by Ulrich Weigand
parent e1089c7a5c
commit 9832651228
12 changed files with 64 additions and 3 deletions
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10
gcc/ChangeLog
View File

@ -1,3 +1,13 @@
2014-07-24 Ulrich Weigand <Ulrich.Weigand@de.ibm.com>
* config/rs6000/rs6000-protos.h (rs6000_special_adjust_field_align_p):
Add prototype.
* config/rs6000/rs6000.c (rs6000_special_adjust_field_align_p): New
function.
* config/rs6000/sysv4.h (ADJUST_FIELD_ALIGN): Call it.
* config/rs6000/linux64.h (ADJUST_FIELD_ALIGN): Likewise.
* config/rs6000/freebsd64.h (ADJUST_FIELD_ALIGN): Likewise.
2014-07-24 Ulrich Weigand <Ulrich.Weigand@de.ibm.com>
* config/rs6000/rs6000.c (rs6000_function_arg_boundary): In the AIX

2
gcc/config/rs6000/freebsd64.h
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@ -367,7 +367,7 @@ extern int dot_symbols;
/* PowerPC64 Linux word-aligns FP doubles when -malign-power is given. */
#undef ADJUST_FIELD_ALIGN
#define ADJUST_FIELD_ALIGN(FIELD, COMPUTED) \
((TARGET_ALTIVEC && TREE_CODE (TREE_TYPE (FIELD)) == VECTOR_TYPE) \
(rs6000_special_adjust_field_align_p ((FIELD), (COMPUTED)) \
? 128 \
: (TARGET_64BIT \
&& TARGET_ALIGN_NATURAL == 0 \

2
gcc/config/rs6000/linux64.h
View File

@ -246,7 +246,7 @@ extern int dot_symbols;
/* PowerPC64 Linux word-aligns FP doubles when -malign-power is given. */
#undef ADJUST_FIELD_ALIGN
#define ADJUST_FIELD_ALIGN(FIELD, COMPUTED) \
((TARGET_ALTIVEC && TREE_CODE (TREE_TYPE (FIELD)) == VECTOR_TYPE) \
(rs6000_special_adjust_field_align_p ((FIELD), (COMPUTED)) \
? 128 \
: (TARGET_64BIT \
&& TARGET_ALIGN_NATURAL == 0 \

1
gcc/config/rs6000/rs6000-protos.h
View File

@ -155,6 +155,7 @@ extern void rs6000_split_logical (rtx [], enum rtx_code, bool, bool, bool, rtx);
#ifdef TREE_CODE
extern unsigned int rs6000_data_alignment (tree, unsigned int, enum data_align);
extern bool rs6000_special_adjust_field_align_p (tree, unsigned int);
extern unsigned int rs6000_special_round_type_align (tree, unsigned int,
unsigned int);
extern unsigned int darwin_rs6000_special_round_type_align (tree, unsigned int,

26
gcc/config/rs6000/rs6000.c
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@ -5880,6 +5880,32 @@ rs6000_data_alignment (tree type, unsigned int align, enum data_align how)
return align;
}
/* Previous GCC releases forced all vector types to have 16-byte alignment. */
bool
rs6000_special_adjust_field_align_p (tree field, unsigned int computed)
{
if (TARGET_ALTIVEC && TREE_CODE (TREE_TYPE (field)) == VECTOR_TYPE)
{
if (computed != 128)
{
static bool warned;
if (!warned && warn_psabi)
{
warned = true;
inform (input_location,
"the layout of aggregates containing vectors with"
" %d-byte alignment has changed in GCC 4.10",
computed / BITS_PER_UNIT);
}
}
/* In current GCC there is no special case. */
return false;
}
return false;
}
/* AIX increases natural record alignment to doubleword if the first
field is an FP double while the FP fields remain word aligned. */

2
gcc/config/rs6000/sysv4.h
View File

@ -292,7 +292,7 @@ do { \
/* An expression for the alignment of a structure field FIELD if the
alignment computed in the usual way is COMPUTED. */
#define ADJUST_FIELD_ALIGN(FIELD, COMPUTED) \
((TARGET_ALTIVEC && TREE_CODE (TREE_TYPE (FIELD)) == VECTOR_TYPE) \
(rs6000_special_adjust_field_align_p ((FIELD), (COMPUTED)) \
? 128 : COMPUTED)
#undef BIGGEST_FIELD_ALIGNMENT

9
gcc/testsuite/ChangeLog
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@ -1,3 +1,12 @@
2014-07-24 Ulrich Weigand <Ulrich.Weigand@de.ibm.com>
* gcc.target/powerpc/ppc64-abi-warn-3.c: New test.
* gcc.c-torture/execute/20050316-1.x: Add -Wno-psabi.
* gcc.c-torture/execute/20050604-1.x: Add -Wno-psabi.
* gcc.c-torture/execute/20050316-3.x: New file. Add -Wno-psabi.
* gcc.c-torture/execute/pr23135.x: Likewise.
2014-07-24 Ulrich Weigand <Ulrich.Weigand@de.ibm.com>
* gcc.target/powerpc/ppc64-abi-warn-2.c: New test.

1
gcc/testsuite/gcc.c-torture/execute/20050316-1.x
View File

@ -4,4 +4,5 @@ if { [check_effective_target_int16] } {
return 1
}
set additional_flags "-Wno-psabi"
return 0;

2
gcc/testsuite/gcc.c-torture/execute/20050316-3.x Normal file
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@ -0,0 +1,2 @@
set additional_flags "-Wno-psabi"
return 0

1
gcc/testsuite/gcc.c-torture/execute/20050604-1.x
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@ -6,4 +6,5 @@ if { [istarget "i?86-*-*"] || [istarget "x86_64-*-*"] } {
set additional_flags "-mno-mmx"
}
set additional_flags "-Wno-psabi"
return 0

2
gcc/testsuite/gcc.c-torture/execute/pr23135.x Normal file
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@ -0,0 +1,2 @@
set additional_flags "-Wno-psabi"
return 0

9
gcc/testsuite/gcc.target/powerpc/ppc64-abi-warn-3.c Normal file
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@ -0,0 +1,9 @@
/* { dg-do compile { target { powerpc*-*-linux* && lp64 } } } */
/* { dg-require-effective-target powerpc_altivec_ok } */
/* { dg-options "-maltivec" } */
struct test
{
int a __attribute__((vector_size (8)));
}; /* { dg-message "note: the layout of aggregates containing vectors with 8-byte alignment has changed" } */