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db4caa1d54
With gcc -O2 -fPIC -flto -g -c -o a.o a.c gcc -O2 -fPIC -flto -g -mavx -c -o b.o b.c gcc -shared -O2 -fPIC -flto -g -o lib1.so a.o b.o LTO correctly generates AVX for b.o and SSE for a.o. But the GCC driver passes -msse2avx to assembler, which encodes SSE instructions as AVX instructions. We shouldn't pass -msse2avx to assembler for -mavx. Backport from mainline PR target/87522 * config/i386/gnu-user.h (ASM_SPEC): Don't pass -msse2avx to assembler for -mavx. * config/i386/gnu-user64.h (ASM_SPEC): Likewise. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@265090 138bc75d-0d04-0410-961f-82ee72b054a4
95 lines
3.0 KiB
C
95 lines
3.0 KiB
C
/* Definitions for AMD x86-64 using GNU userspace.
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Copyright (C) 2001-2016 Free Software Foundation, Inc.
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Contributed by Jan Hubicka <jh@suse.cz>, based on linux.h.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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GCC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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/* Provide a LINK_SPEC. Here we provide support for the special GCC
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options -static and -shared, which allow us to link things in one
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of these three modes by applying the appropriate combinations of
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options at link-time.
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When the -shared link option is used a final link is not being
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done. */
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#if TARGET_64BIT_DEFAULT
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#define SPEC_32 "m16|m32"
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#if TARGET_BI_ARCH == 2
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#define SPEC_64 "m64"
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#define SPEC_X32 "m16|m32|m64:;"
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#else
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#define SPEC_64 "m16|m32|mx32:;"
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#define SPEC_X32 "mx32"
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#endif
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#else
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#define SPEC_32 "m64|mx32:;"
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#define SPEC_64 "m64"
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#define SPEC_X32 "mx32"
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#endif
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#undef ASM_SPEC
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#define ASM_SPEC "%{" SPEC_32 ":--32} \
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%{" SPEC_64 ":--64} \
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%{" SPEC_X32 ":--x32} \
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%{msse2avx:%{!mavx:-msse2avx}}"
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#define GNU_USER_TARGET_LINK_SPEC \
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"%{" SPEC_64 ":-m " GNU_USER_LINK_EMULATION64 "} \
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%{" SPEC_32 ":-m " GNU_USER_LINK_EMULATION32 "} \
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%{" SPEC_X32 ":-m " GNU_USER_LINK_EMULATIONX32 "} \
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%{shared:-shared} \
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%{!shared: \
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%{!static: \
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%{rdynamic:-export-dynamic} \
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%{" SPEC_32 ":-dynamic-linker " GNU_USER_DYNAMIC_LINKER32 "} \
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%{" SPEC_64 ":-dynamic-linker " GNU_USER_DYNAMIC_LINKER64 "} \
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%{" SPEC_X32 ":-dynamic-linker " GNU_USER_DYNAMIC_LINKERX32 "}} \
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%{static:-static}}"
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#undef LINK_SPEC
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#define LINK_SPEC GNU_USER_TARGET_LINK_SPEC
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#if TARGET_64BIT_DEFAULT
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#if TARGET_BI_ARCH == 2
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#define MULTILIB_DEFAULTS { "mx32" }
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#else
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#define MULTILIB_DEFAULTS { "m64" }
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#endif
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#else
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#define MULTILIB_DEFAULTS { "m32" }
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#endif
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#ifdef TARGET_LIBC_PROVIDES_SSP
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/* i386 glibc provides __stack_chk_guard in %gs:0x14,
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x32 glibc provides it in %fs:0x18.
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x86_64 glibc provides it in %fs:0x28. */
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#define TARGET_THREAD_SSP_OFFSET \
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(TARGET_64BIT ? (TARGET_X32 ? 0x18 : 0x28) : 0x14)
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/* We steal the last transactional memory word. */
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#define TARGET_THREAD_SPLIT_STACK_OFFSET \
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(TARGET_64BIT ? (TARGET_X32 ? 0x40 : 0x70) : 0x30)
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#endif
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#undef WCHAR_TYPE
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#define WCHAR_TYPE (TARGET_LP64 ? "int" : "long int")
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