From: Joseph Myers Date: Mon, 10 Oct 2016 22:43:07 +0000 (+0100) Subject: Always support float128 on ia64 (PR target/77586). X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=73f01cca846d729848e793689389bcaa0dec3045;p=gcc.git Always support float128 on ia64 (PR target/77586). Bug 77586, and previously , reports ia64-elf failing to build because of float128_type_node being NULL, but being used by the back end for __float128. The global float128_type_node is only available conditionally, if target hooks indicate TFmode is not only available as a scalar mode and of the right format, but also supported in libgcc. The back-end support, however, expects the type always to be available for __float128 even if the libgcc support is missing. Although a target-specific node could be restored in the case where libgcc support is missing, it seems better to address the missing libgcc support. Thus, this patch enables TFmode soft-fp in libgcc globally for all ia64 targets. Support for XFmode in libgcc (that is, for libgcc2.c XFmode functions, not soft-fp) is also enabled for all ia64 targets so that ia64 no longer needs to define the TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P hook. I've confirmed that ia64-elf builds cc1 with this patch and it passes -fself-test. I have not otherwise tested the patch. It's plausible that ia64-elf and ia64-freebsd might work as-is, but ia64-vms probably needs further changes, by someone familiar with VMS shared libraries, to implement an equivalent of ia64/t-softfp-compat in that case (avoiding conflicts between __divtf3 from soft-fp and the old alias for __divxf3). PR target/77586 gcc: * config/ia64/ia64.c (ia64_libgcc_floating_mode_supported_p) (TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P): Remove. * config/ia64/elf.h (IA64_NO_LIBGCC_TFMODE): Likewise. * config/ia64/freebsd.h (IA64_NO_LIBGCC_TFMODE): Likewise. * config/ia64/vms.h (IA64_NO_LIBGCC_XFMODE) (IA64_NO_LIBGCC_TFMODE): Likewise. libgcc: * config.host (ia64*-*-elf*, ia64*-*-freebsd*, ia64-hp-*vms*): Use soft-fp. From-SVN: r240955 --- diff --git a/gcc/ChangeLog b/gcc/ChangeLog index cb330201c19..99e33a0c585 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,13 @@ +2016-10-10 Joseph Myers + + PR target/77586 + * config/ia64/ia64.c (ia64_libgcc_floating_mode_supported_p) + (TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P): Remove. + * config/ia64/elf.h (IA64_NO_LIBGCC_TFMODE): Likewise. + * config/ia64/freebsd.h (IA64_NO_LIBGCC_TFMODE): Likewise. + * config/ia64/vms.h (IA64_NO_LIBGCC_XFMODE) + (IA64_NO_LIBGCC_TFMODE): Likewise. + 2016-10-11 Kugan Vivekanandarajah * tree-vrp.c (vrp_intersect_ranges_1): Allocate bitmap before diff --git a/gcc/config/ia64/elf.h b/gcc/config/ia64/elf.h index a65f3d89228..633b5c93801 100644 --- a/gcc/config/ia64/elf.h +++ b/gcc/config/ia64/elf.h @@ -65,6 +65,4 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see %{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}}}\ crti.o%s crtbegin.o%s" -#define IA64_NO_LIBGCC_TFMODE - /* End of elf.h */ diff --git a/gcc/config/ia64/freebsd.h b/gcc/config/ia64/freebsd.h index bcce09ba416..5d6784bed9f 100644 --- a/gcc/config/ia64/freebsd.h +++ b/gcc/config/ia64/freebsd.h @@ -50,5 +50,3 @@ along with GCC; see the file COPYING3. If not see #define TARGET_ELF 1 #define JMP_BUF_SIZE 76 - -#define IA64_NO_LIBGCC_TFMODE diff --git a/gcc/config/ia64/ia64.c b/gcc/config/ia64/ia64.c index d32823a5b7e..797b1b0830d 100644 --- a/gcc/config/ia64/ia64.c +++ b/gcc/config/ia64/ia64.c @@ -311,7 +311,6 @@ static rtx ia64_struct_value_rtx (tree, int); static tree ia64_gimplify_va_arg (tree, tree, gimple_seq *, gimple_seq *); static bool ia64_scalar_mode_supported_p (machine_mode mode); static bool ia64_vector_mode_supported_p (machine_mode mode); -static bool ia64_libgcc_floating_mode_supported_p (machine_mode mode); static bool ia64_legitimate_constant_p (machine_mode, rtx); static bool ia64_legitimate_address_p (machine_mode, rtx, bool); static bool ia64_cannot_force_const_mem (machine_mode, rtx); @@ -595,10 +594,6 @@ static const struct attribute_spec ia64_attribute_table[] = #undef TARGET_VECTOR_MODE_SUPPORTED_P #define TARGET_VECTOR_MODE_SUPPORTED_P ia64_vector_mode_supported_p -#undef TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P -#define TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P \ - ia64_libgcc_floating_mode_supported_p - #undef TARGET_LEGITIMATE_CONSTANT_P #define TARGET_LEGITIMATE_CONSTANT_P ia64_legitimate_constant_p #undef TARGET_LEGITIMATE_ADDRESS_P @@ -11008,36 +11003,6 @@ ia64_vector_mode_supported_p (machine_mode mode) } } -/* Implement TARGET_LIBGCC_FLOATING_MODE_SUPPORTED_P. */ - -static bool -ia64_libgcc_floating_mode_supported_p (machine_mode mode) -{ - switch (mode) - { - case SFmode: - case DFmode: - return true; - - case XFmode: -#ifdef IA64_NO_LIBGCC_XFMODE - return false; -#else - return true; -#endif - - case TFmode: -#ifdef IA64_NO_LIBGCC_TFMODE - return false; -#else - return true; -#endif - - default: - return false; - } -} - /* Implement the FUNCTION_PROFILER macro. */ void diff --git a/gcc/config/ia64/vms.h b/gcc/config/ia64/vms.h index 8a80a7edbe1..21d36a5110a 100644 --- a/gcc/config/ia64/vms.h +++ b/gcc/config/ia64/vms.h @@ -154,6 +154,3 @@ STATIC func_ptr __CTOR_LIST__[1] \ /* Default values for _CRTL_VER and _VMS_VER. */ #define VMS_DEFAULT_CRTL_VER 80300000 #define VMS_DEFAULT_VMS_VER 80300000 - -#define IA64_NO_LIBGCC_XFMODE -#define IA64_NO_LIBGCC_TFMODE diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog index f627591bedb..d9949a1b725 100644 --- a/libgcc/ChangeLog +++ b/libgcc/ChangeLog @@ -1,3 +1,9 @@ +2016-10-10 Joseph Myers + + PR target/77586 + * config.host (ia64*-*-elf*, ia64*-*-freebsd*, ia64-hp-*vms*): Use + soft-fp. + 2016-10-10 Andreas Tobler * config.host: Add support for aarch64-*-freebsd*. diff --git a/libgcc/config.host b/libgcc/config.host index 1c90e233d57..ab61d634209 100644 --- a/libgcc/config.host +++ b/libgcc/config.host @@ -751,11 +751,11 @@ x86_64-*-mingw*) ;; ia64*-*-elf*) extra_parts="$extra_parts crtbeginS.o crtendS.o crtfastmath.o" - tmake_file="ia64/t-ia64 ia64/t-ia64-elf ia64/t-eh-ia64 t-crtfm" + tmake_file="ia64/t-ia64 ia64/t-ia64-elf ia64/t-eh-ia64 t-crtfm t-softfp-tf ia64/t-softfp t-softfp ia64/t-softfp-compat" ;; ia64*-*-freebsd*) extra_parts="$extra_parts crtfastmath.o" - tmake_file="$tmake_file ia64/t-ia64 ia64/t-ia64-elf ia64/t-eh-ia64 t-crtfm" + tmake_file="$tmake_file ia64/t-ia64 ia64/t-ia64-elf ia64/t-eh-ia64 t-crtfm t-softfp-tf ia64/t-softfp t-softfp ia64/t-softfp-compat" ;; ia64*-*-linux*) # Don't use crtbeginT.o from *-*-linux* default. @@ -770,7 +770,7 @@ ia64*-*-hpux*) tmake_file="ia64/t-ia64 ia64/t-ia64-elf ia64/t-hpux t-slibgcc ia64/t-slibgcc-hpux t-slibgcc-hpux" ;; ia64-hp-*vms*) - tmake_file="$tmake_file ia64/t-ia64 ia64/t-eh-ia64 ia64/t-vms t-slibgcc-vms" + tmake_file="$tmake_file ia64/t-ia64 ia64/t-eh-ia64 ia64/t-vms t-slibgcc-vms t-softfp-tf ia64/t-softfp t-softfp" extra_parts="$extra_parts crtinitS.o" md_unwind_header=ia64/vms-unwind.h ;;