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gcc: Add -flax-vector-conversions

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Obtained from:	gcc 4.3 (rev. 120572, 120688; GPLv2)
This commit is contained in:
pfg 2013-12-05 21:22:51 +00:00
parent e47dbd1e3f
commit 267b1cd42f
13 changed files with 132 additions and 52 deletions
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30
contrib/gcc/ChangeLog.gcc43
View File

@ -389,6 +389,36 @@
* config.gcc: Support core2 processor.
2007-01-11 Joseph Myers <joseph@codesourcery.com> (r120688)
* c-common.c (vector_types_convertible_p): Treat opaque types as
always convertible if they have the same size, but not otherwise.
2007-01-08 Mark Shinwell <shinwell@codesourcery.com> (r120572)
* c.opt: Add -flax-vector-conversions.
* c-typeck.c (convert_for_assignment): Pass flag to
vector_types_convertible_p to allow emission of note.
(digest_init): Likewise.
* c-opts.c: Handle -flax-vector-conversions.
* c-common.c (flag_lax_vector_conversions): New.
(vector_types_convertible_p): Unless -flax-vector conversions
has been passed, disallow conversions between vectors with
differing numbers of subparts and/or element types. If such
a conversion is disallowed, possibly emit a note on the first
occasion only to inform the user of -flax-vector-conversions.
The new last argument specifies this.
* c-common.h (flag_lax_vector_conversions): New.
(vector_types_convertible_p): Add extra argument.
* config/i386/i386.c (ix86_init_mmx_sse_builtins): Use
char_type_node for V*QI type vectors.
* config/rs6000/rs6000-c.c (altivec_overloaded_builtins):
Update to satisfy new typechecking rules.
* config/rs6000/altivec.h (vec_cmple): Use vec_cmpge, for both
C and C++ variants.
* doc/invoke.texi (C Dialect Options): Document
-flax-vector-conversions.
2007-01-05 Manuel Lopez-Ibanez <manu@gcc.gnu.org> (r120505)
PR c/19978

53
contrib/gcc/c-common.c
View File

@ -254,6 +254,10 @@ int flag_short_double;
int flag_short_wchar;
/* Nonzero means allow implicit conversions between vectors with
differing numbers of subparts and/or differing element types. */
int flag_lax_vector_conversions;
/* Nonzero means allow Microsoft extensions without warnings or errors. */
int flag_ms_extensions;
@ -1095,18 +1099,45 @@ constant_fits_type_p (tree c, tree type)
return !TREE_OVERFLOW (c);
}
/* Nonzero if vector types T1 and T2 can be converted to each other
without an explicit cast. */
int
vector_types_convertible_p (tree t1, tree t2)
/* True if vector types T1 and T2 can be converted to each other
without an explicit cast. If EMIT_LAX_NOTE is true, and T1 and T2
can only be converted with -flax-vector-conversions yet that is not
in effect, emit a note telling the user about that option if such
a note has not previously been emitted. */
bool
vector_types_convertible_p (tree t1, tree t2, bool emit_lax_note)
{
return targetm.vector_opaque_p (t1)
|| targetm.vector_opaque_p (t2)
|| (tree_int_cst_equal (TYPE_SIZE (t1), TYPE_SIZE (t2))
&& (TREE_CODE (TREE_TYPE (t1)) != REAL_TYPE ||
TYPE_PRECISION (t1) == TYPE_PRECISION (t2))
&& INTEGRAL_TYPE_P (TREE_TYPE (t1))
== INTEGRAL_TYPE_P (TREE_TYPE (t2)));
static bool emitted_lax_note = false;
bool convertible_lax;
if ((targetm.vector_opaque_p (t1) || targetm.vector_opaque_p (t2))
&& tree_int_cst_equal (TYPE_SIZE (t1), TYPE_SIZE (t2)))
return true;
convertible_lax =
(tree_int_cst_equal (TYPE_SIZE (t1), TYPE_SIZE (t2))
&& (TREE_CODE (TREE_TYPE (t1)) != REAL_TYPE ||
TYPE_PRECISION (t1) == TYPE_PRECISION (t2))
&& (INTEGRAL_TYPE_P (TREE_TYPE (t1))
== INTEGRAL_TYPE_P (TREE_TYPE (t2))));
if (!convertible_lax || flag_lax_vector_conversions)
return convertible_lax;
if (TYPE_VECTOR_SUBPARTS (t1) == TYPE_VECTOR_SUBPARTS (t2)
&& comptypes (TREE_TYPE (t1), TREE_TYPE (t2)))
return true;
if (emit_lax_note && !emitted_lax_note)
{
emitted_lax_note = true;
inform ("use -flax-vector-conversions to permit "
"conversions between vectors with differing "
"element types or numbers of subparts");
}
return false;
}
/* Convert EXPR to TYPE, warning about conversion problems with constants.

6
contrib/gcc/c-common.h
View File

@ -389,6 +389,10 @@ extern int flag_short_double;
extern int flag_short_wchar;
/* Nonzero means allow implicit conversions between vectors with
differing numbers of subparts and/or differing element types. */
extern int flag_lax_vector_conversions;
/* Nonzero means allow Microsoft extensions without warnings or errors. */
extern int flag_ms_extensions;
@ -791,7 +795,7 @@ extern tree finish_label_address_expr (tree);
extern tree lookup_label (tree);
extern tree lookup_name (tree);
extern int vector_types_convertible_p (tree t1, tree t2);
extern bool vector_types_convertible_p (tree t1, tree t2, bool emit_lax_note);
extern rtx c_expand_expr (tree, rtx, enum machine_mode, int, rtx *);

4
contrib/gcc/c-opts.c
View File

@ -710,6 +710,10 @@ c_common_handle_option (size_t scode, const char *arg, int value)
flag_implicit_templates = value;
break;
case OPT_flax_vector_conversions:
flag_lax_vector_conversions = value;
break;
case OPT_fms_extensions:
flag_ms_extensions = value;
break;

4
contrib/gcc/c-typeck.c
View File

@ -3893,7 +3893,7 @@ convert_for_assignment (tree type, tree rhs, enum impl_conv errtype,
}
/* Some types can interconvert without explicit casts. */
else if (codel == VECTOR_TYPE && coder == VECTOR_TYPE
&& vector_types_convertible_p (type, TREE_TYPE (rhs)))
&& vector_types_convertible_p (type, TREE_TYPE (rhs), true))
return convert (type, rhs);
/* Arithmetic types all interconvert, and enum is treated like int. */
else if ((codel == INTEGER_TYPE || codel == REAL_TYPE
@ -4629,7 +4629,7 @@ digest_init (tree type, tree init, bool strict_string, int require_constant)
below and handle as a constructor. */
if (code == VECTOR_TYPE
&& TREE_CODE (TREE_TYPE (inside_init)) == VECTOR_TYPE
&& vector_types_convertible_p (TREE_TYPE (inside_init), type)
&& vector_types_convertible_p (TREE_TYPE (inside_init), type, true)
&& TREE_CONSTANT (inside_init))
{
if (TREE_CODE (inside_init) == VECTOR_CST

4
contrib/gcc/c.opt
View File

@ -584,6 +584,10 @@ Inject friend functions into enclosing namespace
flabels-ok
C++ ObjC++
flax-vector-conversions
C ObjC C++ ObjC++
Allow implicit conversions between vectors with differing numbers of subparts and/or differing element types.
fms-extensions
C ObjC C++ ObjC++
Don't warn about uses of Microsoft extensions

4
contrib/gcc/config/i386/i386.c
View File

@ -15408,7 +15408,7 @@ ix86_init_mmx_sse_builtins (void)
const struct builtin_description * d;
size_t i;
tree V16QI_type_node = build_vector_type_for_mode (intQI_type_node, V16QImode);
tree V16QI_type_node = build_vector_type_for_mode (char_type_node, V16QImode);
tree V2SI_type_node = build_vector_type_for_mode (intSI_type_node, V2SImode);
tree V2SF_type_node = build_vector_type_for_mode (float_type_node, V2SFmode);
tree V2DI_type_node
@ -15417,7 +15417,7 @@ ix86_init_mmx_sse_builtins (void)
tree V4SF_type_node = build_vector_type_for_mode (float_type_node, V4SFmode);
tree V4SI_type_node = build_vector_type_for_mode (intSI_type_node, V4SImode);
tree V4HI_type_node = build_vector_type_for_mode (intHI_type_node, V4HImode);
tree V8QI_type_node = build_vector_type_for_mode (intQI_type_node, V8QImode);
tree V8QI_type_node = build_vector_type_for_mode (char_type_node, V8QImode);
tree V8HI_type_node = build_vector_type_for_mode (intHI_type_node, V8HImode);
tree pchar_type_node = build_pointer_type (char_type_node);

4
contrib/gcc/config/rs6000/altivec.h
View File

@ -332,7 +332,7 @@ NAME (T a1, U a2) \
__altivec_binary_pred(vec_cmplt,
__builtin_vec_cmpgt (a2, a1))
__altivec_binary_pred(vec_cmple,
__builtin_altivec_cmpge (a2, a1))
__builtin_vec_cmpge (a2, a1))
__altivec_scalar_pred(vec_all_in,
__builtin_altivec_vcmpbfp_p (__CR6_EQ, a1, a2))
@ -402,7 +402,7 @@ __altivec_scalar_pred(vec_any_nle,
#undef __altivec_binary_pred
#else
#define vec_cmplt(a1, a2) __builtin_vec_cmpgt ((a2), (a1))
#define vec_cmple(a1, a2) __builtin_altivec_vcmpgefp ((a2), (a1))
#define vec_cmple(a1, a2) __builtin_vec_cmpge ((a2), (a1))
#define vec_all_in(a1, a2) __builtin_altivec_vcmpbfp_p (__CR6_EQ, (a1), (a2))
#define vec_any_out(a1, a2) __builtin_altivec_vcmpbfp_p (__CR6_EQ_REV, (a1), (a2))

48
contrib/gcc/config/rs6000/rs6000-c.c
View File

@ -222,17 +222,17 @@ const struct altivec_builtin_types altivec_overloaded_builtins[] = {
{ ALTIVEC_BUILTIN_VEC_UNPACKH, ALTIVEC_BUILTIN_VUPKHSB,
RS6000_BTI_V8HI, RS6000_BTI_V16QI, 0, 0 },
{ ALTIVEC_BUILTIN_VEC_UNPACKH, ALTIVEC_BUILTIN_VUPKHSB,
RS6000_BTI_V8HI, RS6000_BTI_bool_V16QI, 0, 0 },
RS6000_BTI_bool_V8HI, RS6000_BTI_bool_V16QI, 0, 0 },
{ ALTIVEC_BUILTIN_VEC_UNPACKH, ALTIVEC_BUILTIN_VUPKHSH,
RS6000_BTI_V4SI, RS6000_BTI_V8HI, 0, 0 },
{ ALTIVEC_BUILTIN_VEC_UNPACKH, ALTIVEC_BUILTIN_VUPKHSH,
RS6000_BTI_V4SI, RS6000_BTI_bool_V8HI, 0, 0 },
RS6000_BTI_bool_V4SI, RS6000_BTI_bool_V8HI, 0, 0 },
{ ALTIVEC_BUILTIN_VEC_UNPACKH, ALTIVEC_BUILTIN_VUPKHPX,
RS6000_BTI_unsigned_V4SI, RS6000_BTI_pixel_V8HI, 0, 0 },
{ ALTIVEC_BUILTIN_VEC_VUPKHSH, ALTIVEC_BUILTIN_VUPKHSH,
RS6000_BTI_V4SI, RS6000_BTI_V8HI, 0, 0 },
{ ALTIVEC_BUILTIN_VEC_VUPKHSH, ALTIVEC_BUILTIN_VUPKHSH,
RS6000_BTI_V4SI, RS6000_BTI_bool_V8HI, 0, 0 },
RS6000_BTI_bool_V4SI, RS6000_BTI_bool_V8HI, 0, 0 },
{ ALTIVEC_BUILTIN_VEC_VUPKHPX, ALTIVEC_BUILTIN_VUPKHPX,
RS6000_BTI_unsigned_V4SI, RS6000_BTI_unsigned_V8HI, 0, 0 },
{ ALTIVEC_BUILTIN_VEC_VUPKHPX, ALTIVEC_BUILTIN_VUPKHPX,
@ -240,17 +240,17 @@ const struct altivec_builtin_types altivec_overloaded_builtins[] = {
{ ALTIVEC_BUILTIN_VEC_VUPKHSB, ALTIVEC_BUILTIN_VUPKHSB,
RS6000_BTI_V8HI, RS6000_BTI_V16QI, 0, 0 },
{ ALTIVEC_BUILTIN_VEC_VUPKHSB, ALTIVEC_BUILTIN_VUPKHSB,
RS6000_BTI_V8HI, RS6000_BTI_bool_V16QI, 0, 0 },
RS6000_BTI_bool_V8HI, RS6000_BTI_bool_V16QI, 0, 0 },
{ ALTIVEC_BUILTIN_VEC_UNPACKL, ALTIVEC_BUILTIN_VUPKLSB,
RS6000_BTI_V8HI, RS6000_BTI_V16QI, 0, 0 },
{ ALTIVEC_BUILTIN_VEC_UNPACKL, ALTIVEC_BUILTIN_VUPKLSB,
RS6000_BTI_V8HI, RS6000_BTI_bool_V16QI, 0, 0 },
RS6000_BTI_bool_V8HI, RS6000_BTI_bool_V16QI, 0, 0 },
{ ALTIVEC_BUILTIN_VEC_UNPACKL, ALTIVEC_BUILTIN_VUPKLPX,
RS6000_BTI_unsigned_V4SI, RS6000_BTI_pixel_V8HI, 0, 0 },
{ ALTIVEC_BUILTIN_VEC_UNPACKL, ALTIVEC_BUILTIN_VUPKLSH,
RS6000_BTI_V4SI, RS6000_BTI_V8HI, 0, 0 },
{ ALTIVEC_BUILTIN_VEC_UNPACKL, ALTIVEC_BUILTIN_VUPKLSH,
RS6000_BTI_V4SI, RS6000_BTI_bool_V8HI, 0, 0 },
RS6000_BTI_bool_V4SI, RS6000_BTI_bool_V8HI, 0, 0 },
{ ALTIVEC_BUILTIN_VEC_VUPKLPX, ALTIVEC_BUILTIN_VUPKLPX,
RS6000_BTI_unsigned_V4SI, RS6000_BTI_unsigned_V8HI, 0, 0 },
{ ALTIVEC_BUILTIN_VEC_VUPKLPX, ALTIVEC_BUILTIN_VUPKLPX,
@ -258,11 +258,11 @@ const struct altivec_builtin_types altivec_overloaded_builtins[] = {
{ ALTIVEC_BUILTIN_VEC_VUPKLSH, ALTIVEC_BUILTIN_VUPKLSH,
RS6000_BTI_V4SI, RS6000_BTI_V8HI, 0, 0 },
{ ALTIVEC_BUILTIN_VEC_VUPKLSH, ALTIVEC_BUILTIN_VUPKLSH,
RS6000_BTI_V4SI, RS6000_BTI_bool_V8HI, 0, 0 },
RS6000_BTI_bool_V4SI, RS6000_BTI_bool_V8HI, 0, 0 },
{ ALTIVEC_BUILTIN_VEC_VUPKLSB, ALTIVEC_BUILTIN_VUPKLSB,
RS6000_BTI_V8HI, RS6000_BTI_V16QI, 0, 0 },
{ ALTIVEC_BUILTIN_VEC_VUPKLSB, ALTIVEC_BUILTIN_VUPKLSB,
RS6000_BTI_V8HI, RS6000_BTI_bool_V16QI, 0, 0 },
RS6000_BTI_bool_V8HI, RS6000_BTI_bool_V16QI, 0, 0 },
/* Binary AltiVec builtins. */
{ ALTIVEC_BUILTIN_VEC_ADD, ALTIVEC_BUILTIN_VADDUBM,
@ -576,31 +576,23 @@ const struct altivec_builtin_types altivec_overloaded_builtins[] = {
{ ALTIVEC_BUILTIN_VEC_CMPEQ, ALTIVEC_BUILTIN_VCMPEQFP,
RS6000_BTI_bool_V4SI, RS6000_BTI_V4SF, RS6000_BTI_V4SF, 0 },
{ ALTIVEC_BUILTIN_VEC_VCMPEQFP, ALTIVEC_BUILTIN_VCMPEQFP,
RS6000_BTI_V4SI, RS6000_BTI_V4SF, RS6000_BTI_V4SF, 0 },
{ ALTIVEC_BUILTIN_VEC_VCMPEQUW, ALTIVEC_BUILTIN_VCMPEQUW,
RS6000_BTI_V4SI, RS6000_BTI_V4SI, RS6000_BTI_V4SI, 0 },
{ ALTIVEC_BUILTIN_VEC_VCMPEQUW, ALTIVEC_BUILTIN_VCMPEQUW,
RS6000_BTI_V4SI, RS6000_BTI_unsigned_V4SI, RS6000_BTI_unsigned_V4SI, 0 },
RS6000_BTI_bool_V4SI, RS6000_BTI_V4SF, RS6000_BTI_V4SF, 0 },
{ ALTIVEC_BUILTIN_VEC_VCMPEQUW, ALTIVEC_BUILTIN_VCMPEQUW,
RS6000_BTI_bool_V4SI, RS6000_BTI_V4SI, RS6000_BTI_V4SI, 0 },
{ ALTIVEC_BUILTIN_VEC_VCMPEQUW, ALTIVEC_BUILTIN_VCMPEQUW,
RS6000_BTI_bool_V4SI, RS6000_BTI_unsigned_V4SI, RS6000_BTI_unsigned_V4SI, 0 },
{ ALTIVEC_BUILTIN_VEC_VCMPEQUH, ALTIVEC_BUILTIN_VCMPEQUH,
RS6000_BTI_V8HI, RS6000_BTI_V8HI, RS6000_BTI_V8HI, 0 },
{ ALTIVEC_BUILTIN_VEC_VCMPEQUH, ALTIVEC_BUILTIN_VCMPEQUH,
RS6000_BTI_V8HI, RS6000_BTI_unsigned_V8HI, RS6000_BTI_unsigned_V8HI, 0 },
{ ALTIVEC_BUILTIN_VEC_VCMPEQUH, ALTIVEC_BUILTIN_VCMPEQUH,
RS6000_BTI_bool_V8HI, RS6000_BTI_V8HI, RS6000_BTI_V8HI, 0 },
{ ALTIVEC_BUILTIN_VEC_VCMPEQUH, ALTIVEC_BUILTIN_VCMPEQUH,
RS6000_BTI_bool_V8HI, RS6000_BTI_unsigned_V8HI, RS6000_BTI_unsigned_V8HI, 0 },
{ ALTIVEC_BUILTIN_VEC_VCMPEQUB, ALTIVEC_BUILTIN_VCMPEQUB,
RS6000_BTI_V16QI, RS6000_BTI_V16QI, RS6000_BTI_V16QI, 0 },
{ ALTIVEC_BUILTIN_VEC_VCMPEQUB, ALTIVEC_BUILTIN_VCMPEQUB,
RS6000_BTI_V16QI, RS6000_BTI_unsigned_V16QI, RS6000_BTI_unsigned_V16QI, 0 },
{ ALTIVEC_BUILTIN_VEC_VCMPEQUB, ALTIVEC_BUILTIN_VCMPEQUB,
RS6000_BTI_bool_V16QI, RS6000_BTI_V16QI, RS6000_BTI_V16QI, 0 },
{ ALTIVEC_BUILTIN_VEC_VCMPEQUB, ALTIVEC_BUILTIN_VCMPEQUB,
RS6000_BTI_bool_V16QI, RS6000_BTI_unsigned_V16QI, RS6000_BTI_unsigned_V16QI, 0 },
{ ALTIVEC_BUILTIN_VEC_CMPGE, ALTIVEC_BUILTIN_VCMPGEFP,
RS6000_BTI_bool_V4SI, RS6000_BTI_V4SF, RS6000_BTI_V4SF, 0 },
{ ALTIVEC_BUILTIN_VEC_CMPGT, ALTIVEC_BUILTIN_VCMPGTUB,
@ -618,29 +610,29 @@ const struct altivec_builtin_types altivec_overloaded_builtins[] = {
{ ALTIVEC_BUILTIN_VEC_CMPGT, ALTIVEC_BUILTIN_VCMPGTFP,
RS6000_BTI_bool_V4SI, RS6000_BTI_V4SF, RS6000_BTI_V4SF, 0 },
{ ALTIVEC_BUILTIN_VEC_VCMPGTFP, ALTIVEC_BUILTIN_VCMPGTFP,
RS6000_BTI_V4SI, RS6000_BTI_V4SF, RS6000_BTI_V4SF, 0 },
RS6000_BTI_bool_V4SI, RS6000_BTI_V4SF, RS6000_BTI_V4SF, 0 },
{ ALTIVEC_BUILTIN_VEC_VCMPGTSW, ALTIVEC_BUILTIN_VCMPGTSW,
RS6000_BTI_V4SI, RS6000_BTI_V4SI, RS6000_BTI_V4SI, 0 },
RS6000_BTI_bool_V4SI, RS6000_BTI_V4SI, RS6000_BTI_V4SI, 0 },
{ ALTIVEC_BUILTIN_VEC_VCMPGTSW, ALTIVEC_BUILTIN_VCMPGTSW,
RS6000_BTI_bool_V4SI, RS6000_BTI_V4SI, RS6000_BTI_V4SI, 0 },
{ ALTIVEC_BUILTIN_VEC_VCMPGTUW, ALTIVEC_BUILTIN_VCMPGTUW,
RS6000_BTI_V4SI, RS6000_BTI_unsigned_V4SI, RS6000_BTI_unsigned_V4SI, 0 },
RS6000_BTI_bool_V4SI, RS6000_BTI_unsigned_V4SI, RS6000_BTI_unsigned_V4SI, 0 },
{ ALTIVEC_BUILTIN_VEC_VCMPGTUW, ALTIVEC_BUILTIN_VCMPGTUW,
RS6000_BTI_bool_V4SI, RS6000_BTI_unsigned_V4SI, RS6000_BTI_unsigned_V4SI, 0 },
{ ALTIVEC_BUILTIN_VEC_VCMPGTSH, ALTIVEC_BUILTIN_VCMPGTSH,
RS6000_BTI_V8HI, RS6000_BTI_V8HI, RS6000_BTI_V8HI, 0 },
RS6000_BTI_bool_V8HI, RS6000_BTI_V8HI, RS6000_BTI_V8HI, 0 },
{ ALTIVEC_BUILTIN_VEC_VCMPGTSH, ALTIVEC_BUILTIN_VCMPGTSH,
RS6000_BTI_bool_V8HI, RS6000_BTI_V8HI, RS6000_BTI_V8HI, 0 },
{ ALTIVEC_BUILTIN_VEC_VCMPGTUH, ALTIVEC_BUILTIN_VCMPGTUH,
RS6000_BTI_V8HI, RS6000_BTI_unsigned_V8HI, RS6000_BTI_unsigned_V8HI, 0 },
RS6000_BTI_bool_V8HI, RS6000_BTI_unsigned_V8HI, RS6000_BTI_unsigned_V8HI, 0 },
{ ALTIVEC_BUILTIN_VEC_VCMPGTUH, ALTIVEC_BUILTIN_VCMPGTUH,
RS6000_BTI_bool_V8HI, RS6000_BTI_unsigned_V8HI, RS6000_BTI_unsigned_V8HI, 0 },
{ ALTIVEC_BUILTIN_VEC_VCMPGTSB, ALTIVEC_BUILTIN_VCMPGTSB,
RS6000_BTI_V16QI, RS6000_BTI_V16QI, RS6000_BTI_V16QI, 0 },
RS6000_BTI_bool_V16QI, RS6000_BTI_V16QI, RS6000_BTI_V16QI, 0 },
{ ALTIVEC_BUILTIN_VEC_VCMPGTSB, ALTIVEC_BUILTIN_VCMPGTSB,
RS6000_BTI_bool_V16QI, RS6000_BTI_V16QI, RS6000_BTI_V16QI, 0 },
{ ALTIVEC_BUILTIN_VEC_VCMPGTUB, ALTIVEC_BUILTIN_VCMPGTUB,
RS6000_BTI_V16QI, RS6000_BTI_unsigned_V16QI, RS6000_BTI_unsigned_V16QI, 0 },
RS6000_BTI_bool_V16QI, RS6000_BTI_unsigned_V16QI, RS6000_BTI_unsigned_V16QI, 0 },
{ ALTIVEC_BUILTIN_VEC_VCMPGTUB, ALTIVEC_BUILTIN_VCMPGTUB,
RS6000_BTI_bool_V16QI, RS6000_BTI_unsigned_V16QI, RS6000_BTI_unsigned_V16QI, 0 },
{ ALTIVEC_BUILTIN_VEC_CMPLE, ALTIVEC_BUILTIN_VCMPGEFP,

13
contrib/gcc/cp/ChangeLog.gcc43
View File

@ -29,14 +29,23 @@
* decl.c (compute_array_index_type): New warning flag warn_vla.
2007-01-07 Manuel Lopez-Ibanez <manu@gcc.gnu.org>
2007-01-08 Mark Shinwell <shinwell@codesourcery.com> (r120572)
* call.c (standard_conversion): Pass flag to
vector_types_convertible_p to disallow emission of note.
* typeck.c (convert_for_assignment): Pass flag to
vector_types_convertible_p to allow emission of note.
(ptr_reasonably_similar): Pass flag to vector_types_convertible_p
to disallow emission of note.
2007-01-07 Manuel Lopez-Ibanez <manu@gcc.gnu.org> (r120558)
PR c++/28986
* typeck.c (build_binary_op): Call overflow_warning if
TREE_OVERFLOW_P is true for the result and not for any of the
operands.
2007-01-05 Manuel Lopez-Ibanez <manu@gcc.gnu.org>
2007-01-05 Manuel Lopez-Ibanez <manu@gcc.gnu.org> (r120505)
PR c/19978
* semantics.c (finish_unary_op_expr): Warn only if result

2
contrib/gcc/cp/call.c
View File

@ -838,7 +838,7 @@ standard_conversion (tree to, tree from, tree expr, bool c_cast_p,
conv->rank = cr_promotion;
}
else if (fcode == VECTOR_TYPE && tcode == VECTOR_TYPE
&& vector_types_convertible_p (from, to))
&& vector_types_convertible_p (from, to, false))
return build_conv (ck_std, to, conv);
else if (!(flags & LOOKUP_CONSTRUCTOR_CALLABLE)
&& IS_AGGR_TYPE (to) && IS_AGGR_TYPE (from)

4
contrib/gcc/cp/typeck.c
View File

@ -6229,7 +6229,7 @@ convert_for_assignment (tree type, tree rhs,
coder = TREE_CODE (rhstype);
if (TREE_CODE (type) == VECTOR_TYPE && coder == VECTOR_TYPE
&& vector_types_convertible_p (type, rhstype))
&& vector_types_convertible_p (type, rhstype, true))
return convert (type, rhs);
if (rhs == error_mark_node || rhstype == error_mark_node)
@ -6799,7 +6799,7 @@ ptr_reasonably_similar (tree to, tree from)
continue;
if (TREE_CODE (to) == VECTOR_TYPE
&& vector_types_convertible_p (to, from))
&& vector_types_convertible_p (to, from, false))
return 1;
if (TREE_CODE (to) == INTEGER_TYPE

8
contrib/gcc/doc/invoke.texi
View File

@ -167,7 +167,7 @@ in the following sections.
-fno-asm -fno-builtin -fno-builtin-@var{function} @gol
-fhosted -ffreestanding -fopenmp -fms-extensions @gol
-trigraphs -no-integrated-cpp -traditional -traditional-cpp @gol
-fallow-single-precision -fcond-mismatch @gol
-fallow-single-precision -fcond-mismatch -flax-vector-conversions @gol
-fsigned-bitfields -fsigned-char @gol
-funsigned-bitfields -funsigned-char}
@ -1337,6 +1337,12 @@ Allow conditional expressions with mismatched types in the second and
third arguments. The value of such an expression is void. This option
is not supported for C++.
@item -flax-vector-conversions
@opindex flax-vector-conversions
Allow implicit conversions between vectors with differing numbers of
elements and/or incompatible element types. This option should not be
used for new code.
@item -funsigned-char
@opindex funsigned-char
Let the type @code{char} be unsigned, like @code{unsigned char}.