From b1def36c41f48e3f4de7b3890d635ee083e98abe Mon Sep 17 00:00:00 2001 From: Julian Brown Date: Wed, 8 Jun 2011 11:19:08 +0000 Subject: [PATCH] arm.c (arm_libcall_uses_aapcs_base): Use correct ABI for double-precision helper functions in hard-float mode if... * 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 --- gcc/ChangeLog | 6 ++++++ gcc/config/arm/arm.c | 22 ++++++++++++++++++++++ 2 files changed, 28 insertions(+) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 294e5d7a5a9..7ee682176d3 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2011-06-08 Julian Brown + + * 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 PR rtl-optimization/49303 diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c index 1037d9db8b7..61a315eb21b 100644 --- a/gcc/config/arm/arm.c +++ b/gcc/config/arm/arm.c @@ -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; -- 2.30.2