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aix.h (TARGET_ALTIVEC_VRSAVE): Delete. 

* config/rs6000/aix.h (TARGET_ALTIVEC_VRSAVE): Delete.
        * config/rs6000/rs6000.c (rs6000_explicit_options): Add
        aix_struct_ret.
        (rs6000_override_options): Do not protect TARGET_ALTIVEC_VRSAVE.
        Modify aix_struct_return variable, not target_flags.
        (rs6000_handle_option): Do not protect TARGET_ALTIVEC_VRSAVE.
        (rs6000_return_in_memory): Test aix_struct_return.
        * config/rs6000/rs6000.opt (maix-struct-return): Convert to
        independent variable.  Report mxl-compat.

From-SVN: r99831
This commit is contained in:
David Edelsohn 2005-05-17 14:25:07 +00:00 committed by David Edelsohn
parent 4193ce7321
commit df01da3748
4 changed files with 26 additions and 19 deletions
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12
gcc/ChangeLog
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@ -1,3 +1,15 @@
2005-05-17 David Edelsohn <edelsohn@gnu.org>
* config/rs6000/aix.h (TARGET_ALTIVEC_VRSAVE): Delete.
* config/rs6000/rs6000.c (rs6000_explicit_options): Add
aix_struct_ret.
(rs6000_override_options): Do not protect TARGET_ALTIVEC_VRSAVE.
Modify aix_struct_return variable, not target_flags.
(rs6000_handle_option): Do not protect TARGET_ALTIVEC_VRSAVE.
(rs6000_return_in_memory): Test aix_struct_return.
* config/rs6000/rs6000.opt (maix-struct-return): Convert to
independent variable. Report mxl-compat.
2005-05-17 Bernd Schmidt <bernd.schmidt@analog.com>
* config/bfin/bfin.md (eh_return): Add missing DONE.

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

@ -38,8 +38,6 @@
#define TARGET_ALTIVEC 0
#undef TARGET_ALTIVEC_ABI
#define TARGET_ALTIVEC_ABI 0
#undef TARGET_ALTIVEC_VRSAVE
#define TARGET_ALTIVEC_VRSAVE 0
/* The AIX linker will discard static constructors in object files before
collect has a chance to see them, so scan the object files directly. */

25
gcc/config/rs6000/rs6000.c
View File

@ -226,6 +226,7 @@ int rs6000_alignment_flags;
/* True for any options that were explicitly set. */
struct {
bool aix_struct_ret; /* True if -maix-struct-ret was used. */
bool alignment; /* True if -malign- was used. */
bool abi; /* True if -mabi= was used. */
bool spe; /* True if -mspe= was used. */
@ -1252,9 +1253,7 @@ rs6000_override_options (const char *default_cpu)
if (TARGET_ELF && TARGET_64BIT)
{
rs6000_altivec_abi = 1;
#if TARGET_ALTIVEC_VRSAVE != 0
TARGET_ALTIVEC_VRSAVE = 1;
#endif
}
/* Set the Darwin64 ABI as default for 64-bit Darwin. */
@ -1357,16 +1356,11 @@ rs6000_override_options (const char *default_cpu)
memcpy (rs6000_reg_names, alt_reg_names, sizeof (rs6000_reg_names));
#endif
/* Set TARGET_AIX_STRUCT_RET last, after the ABI is determined.
/* Set aix_struct_return last, after the ABI is determined.
If -maix-struct-return or -msvr4-struct-return was explicitly
used, don't override with the ABI default. */
if ((target_flags_explicit & MASK_AIX_STRUCT_RET) == 0)
{
if (DEFAULT_ABI == ABI_V4 && !DRAFT_V4_STRUCT_RET)
target_flags = (target_flags & ~MASK_AIX_STRUCT_RET);
else
target_flags |= MASK_AIX_STRUCT_RET;
}
if (!rs6000_explicit_options.aix_struct_ret)
aix_struct_return = (DEFAULT_ABI != ABI_V4 || DRAFT_V4_STRUCT_RET);
if (TARGET_LONG_DOUBLE_128
&& (DEFAULT_ABI == ABI_AIX || DEFAULT_ABI == ABI_DARWIN))
@ -1639,11 +1633,14 @@ rs6000_handle_option (size_t code, const char *arg, int value)
}
break;
#if TARGET_ALTIVEC_VRSAVE != 0
case OPT_maix_struct_return:
case OPT_msvr4_struct_return:
rs6000_explicit_options.aix_struct_ret = true;
break;
case OPT_mvrsave_:
rs6000_parse_yes_no_option ("vrsave", arg, &(TARGET_ALTIVEC_VRSAVE));
break;
#endif
case OPT_misel_:
rs6000_explicit_options.isel = true;
@ -3899,7 +3896,7 @@ rs6000_emit_move (rtx dest, rtx source, enum machine_mode mode)
returned in memory. The Darwin ABI does the same. The SVR4 ABI
specifies that structures <= 8 bytes are returned in r3/r4, but a
draft put them in memory, and GCC used to implement the draft
instead of the final standard. Therefore, TARGET_AIX_STRUCT_RET
instead of the final standard. Therefore, aix_struct_return
controls this instead of DEFAULT_ABI; V.4 targets needing backward
compatibility can change DRAFT_V4_STRUCT_RET to override the
default, and -m switches get the final word. See
@ -3935,7 +3932,7 @@ rs6000_return_in_memory (tree type, tree fntype ATTRIBUTE_UNUSED)
}
if (AGGREGATE_TYPE_P (type)
&& (TARGET_AIX_STRUCT_RET
&& (aix_struct_return
|| (unsigned HOST_WIDE_INT) int_size_in_bytes (type) > 8))
return true;

6
gcc/config/rs6000/rs6000.opt
View File

@ -112,15 +112,15 @@ msched-epilog
Target Undocumented Mask(SCHED_PROLOG) MaskExists
maix-struct-return
Target Report Mask(AIX_STRUCT_RET)
Target Report RejectNegative Var(aix_struct_return)
Return all structures in memory (AIX default)
msvr4-struct-return
Target Report InverseMask(AIX_STRUCT_RET)
Target Report RejectNegative Var(aix_struct_return,0) VarExists
Return small structures in registers (SVR4 default)
mxl-compat
Target Var(TARGET_XL_COMPAT)
Target Report Var(TARGET_XL_COMPAT)
Conform more closely to IBM XLC semantics
mno-fp-in-toc