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arm.c (arm_libcall_uses_aapcs_base): Use correct ABI for double-precision helper functions in hard-float mode if...

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* config/arm/arm.c (arm_libcall_uses_aapcs_base): Use correct ABI
	for double-precision helper functions in hard-float mode if only
	single-precision arithmetic is supported in hardware.

From-SVN: r174803
This commit is contained in:
Julian Brown 2011-06-08 11:19:08 +00:00 committed by Julian Brown
parent 76aa78e9eb
commit b1def36c41
2 changed files with 28 additions and 0 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2011-06-08 Julian Brown <julian@codesourcery.com>
* config/arm/arm.c (arm_libcall_uses_aapcs_base): Use correct ABI
for double-precision helper functions in hard-float mode if only
single-precision arithmetic is supported in hardware.
2011-06-08 Alexander Monakov <amonakov@ispras.ru>
PR rtl-optimization/49303

22
gcc/config/arm/arm.c
View File

@ -3345,6 +3345,28 @@ arm_libcall_uses_aapcs_base (const_rtx libcall)
convert_optab_libfunc (sfix_optab, DImode, SFmode));
add_libcall (libcall_htab,
convert_optab_libfunc (ufix_optab, DImode, SFmode));
/* Values from double-precision helper functions are returned in core
registers if the selected core only supports single-precision
arithmetic, even if we are using the hard-float ABI. The same is
true for single-precision helpers, but we will never be using the
hard-float ABI on a CPU which doesn't support single-precision
operations in hardware. */
add_libcall (libcall_htab, optab_libfunc (add_optab, DFmode));
add_libcall (libcall_htab, optab_libfunc (sdiv_optab, DFmode));
add_libcall (libcall_htab, optab_libfunc (smul_optab, DFmode));
add_libcall (libcall_htab, optab_libfunc (neg_optab, DFmode));
add_libcall (libcall_htab, optab_libfunc (sub_optab, DFmode));
add_libcall (libcall_htab, optab_libfunc (eq_optab, DFmode));
add_libcall (libcall_htab, optab_libfunc (lt_optab, DFmode));
add_libcall (libcall_htab, optab_libfunc (le_optab, DFmode));
add_libcall (libcall_htab, optab_libfunc (ge_optab, DFmode));
add_libcall (libcall_htab, optab_libfunc (gt_optab, DFmode));
add_libcall (libcall_htab, optab_libfunc (unord_optab, DFmode));
add_libcall (libcall_htab, convert_optab_libfunc (sext_optab, DFmode,
SFmode));
add_libcall (libcall_htab, convert_optab_libfunc (trunc_optab, SFmode,
DFmode));
}
return libcall && htab_find (libcall_htab, libcall) != NULL;