From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 7750 invoked by alias); 25 Dec 2013 16:41:32 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 7720 invoked by uid 48); 25 Dec 2013 16:41:29 -0000 From: "nheghathivhistha at gmail dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug libitm/53113] Build fails in x86_avx.cc if AVX disabled but supported by as (Solaris & Linux) Date: Wed, 25 Dec 2013 16:41:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: libitm X-Bugzilla-Version: 4.7.2 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: nheghathivhistha at gmail dot com X-Bugzilla-Status: WAITING X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2013-12/txt/msg02153.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53113 --- Comment #15 from David Kredba --- For me it looks like that GCC build process is taking from some internal definition that AVX should be present on Core2 and enables it for libitm. Patch attached in this bug report works for gcc-4.9-20131222 fine too. "Known to fail" can contain 4.8.2 (and 4.9.0 branch too if possible). Gcc knows that there is no AVX, both for 4.8.2 and 4.9.0 snapshot but both versions enable AVX for libitim for me: 4.9.0: gcc -march=native -Q --help=targetThe following options are target specific: -m128bit-long-double [disabled] -m32 [disabled] -m3dnow [disabled] -m3dnowa [disabled] -m64 [enabled] -m80387 [enabled] -m8bit-idiv [disabled] -m96bit-long-double [enabled] -mabi= sysv -mabm [disabled] -maccumulate-outgoing-args [disabled] -maddress-mode= short -madx [disabled] -maes [disabled] -malign-double [disabled] -malign-functions= 0 -malign-jumps= 0 -malign-loops= 0 -malign-stringops [enabled] -mandroid [disabled] -march= core2 -masm= att -mavx [disabled] -mavx2 [disabled] -mavx256-split-unaligned-load [disabled] -mavx256-split-unaligned-store [disabled] -mavx512cd [disabled] -mavx512er [disabled] -mavx512f [disabled] -mavx512pf [disabled] -mbionic [disabled] -mbmi [disabled] -mbmi2 [disabled] -mbranch-cost= 0 -mcld [disabled] -mcmodel= 32 -mcpu= -mcrc32 [disabled] -mcx16 [enabled] -mdispatch-scheduler [disabled] -mdump-tune-features [disabled] -mf16c [disabled] -mfancy-math-387 [enabled] -mfentry [enabled] -mfma [disabled] -mfma4 [disabled] -mforce-drap [disabled] -mfp-ret-in-387 [enabled] -mfpmath= 387 -mfsgsbase [disabled] -mfused-madd -mfxsr [enabled] -mglibc [enabled] -mhard-float [enabled] -mhle [disabled] -mieee-fp [enabled] -mincoming-stack-boundary= 0 -minline-all-stringops [disabled] -minline-stringops-dynamically [disabled] -mintel-syntax -mlarge-data-threshold= 0x10000 -mlong-double-64 [disabled] -mlong-double-80 [enabled] -mlwp [disabled] -mlzcnt [disabled] -mmemcpy-strategy= -mmemset-strategy= -mmmx [enabled] -mmovbe [disabled] -mms-bitfields [disabled] -mno-align-stringops [disabled] -mno-default [disabled] -mno-fancy-math-387 [disabled] -mno-push-args [disabled] -mno-red-zone [disabled] -mno-sse4 [disabled] -momit-leaf-frame-pointer [disabled] -mpc32 [disabled] -mpc64 [disabled] -mpc80 [disabled] -mpclmul [disabled] -mpopcnt [disabled] -mprefer-avx128 [disabled] -mpreferred-stack-boundary= 0 -mprfchw [disabled] -mpush-args [enabled] -mrdrnd [disabled] -mrdseed [disabled] -mrecip [disabled] -mrecip= -mred-zone [enabled] -mregparm= 0 -mrtd [disabled] -mrtm [disabled] -msahf [enabled] -msoft-float [disabled] -msse [enabled] -msse2 [enabled] -msse2avx [disabled] -msse3 [enabled] -msse4 [disabled] -msse4.1 [enabled] -msse4.2 [disabled] -msse4a [disabled] -msse5 -msseregparm [disabled] -mssse3 [enabled] -mstack-arg-probe [disabled] -mstack-protector-guard= tls -mstackrealign [enabled] -mstringop-strategy= [default] -mtbm [disabled] -mtls-dialect= gnu -mtls-direct-seg-refs [enabled] -mtune-ctrl= -mtune= core2 -muclibc [disabled] -mveclibabi= [default] -mvect8-ret-in-mem [disabled] -mvzeroupper [disabled] -mx32 [disabled] -mxop [disabled] -mxsave [disabled] -mxsaveopt [disabled] Known assembler dialects (for use with the -masm-dialect= option): att intel Known ABIs (for use with the -mabi= option): ms sysv Known code models (for use with the -mcmodel= option): 32 kernel large medium small Valid arguments to -mfpmath=: 387 387+sse 387,sse both sse sse+387 sse,387 Known vectorization library ABIs (for use with the -mveclibabi= option): acml svml Known address mode (for use with the -maddress-mode= option): long short Known stack protector guard (for use with the -mstack-protector-guard= option): global tls Valid arguments to -mstringop-strategy=: byte_loop libcall loop rep_4byte rep_8byte rep_byte unrolled_loop vector_loop Known TLS dialects (for use with the -mtls-dialect= option): gnu gnu2 4.8.2: /usr/x86_64-pc-linux-gnu/gcc-bin/4.8.2/gcc -march=native -Q --help=target The following options are target specific: -m128bit-long-double [disabled] -m32 [disabled] -m3dnow [disabled] -m3dnowa [disabled] -m64 [enabled] -m80387 [enabled] -m8bit-idiv [disabled] -m96bit-long-double [enabled] -mabi= sysv -mabm [disabled] -maccumulate-outgoing-args [disabled] -maddress-mode= short -madx [disabled] -maes [disabled] -malign-double [disabled] -malign-functions= 0 -malign-jumps= 0 -malign-loops= 0 -malign-stringops [enabled] -mandroid [disabled] -march= core2 -masm= att -mavx [disabled] -mavx2 [disabled] -mavx256-split-unaligned-load [disabled] -mavx256-split-unaligned-store [disabled] -mbionic [disabled] -mbmi [disabled] -mbmi2 [disabled] -mbranch-cost= 0 -mcld [disabled] -mcmodel= 32 -mcpu= -mcrc32 [disabled] -mcx16 [enabled] -mdispatch-scheduler [disabled] -mf16c [disabled] -mfancy-math-387 [enabled] -mfentry [enabled] -mfma [disabled] -mfma4 [disabled] -mforce-drap [disabled] -mfp-ret-in-387 [enabled] -mfpmath= 387 -mfsgsbase [disabled] -mfused-madd -mfxsr [enabled] -mglibc [enabled] -mhard-float [enabled] -mhle [disabled] -mieee-fp [enabled] -mincoming-stack-boundary= 0 -minline-all-stringops [disabled] -minline-stringops-dynamically [disabled] -mintel-syntax -mlarge-data-threshold= 0x10000 -mlong-double-64 [disabled] -mlong-double-80 [enabled] -mlwp [disabled] -mlzcnt [disabled] -mmmx [disabled] -mmovbe [disabled] -mms-bitfields [disabled] -mno-align-stringops [disabled] -mno-fancy-math-387 [disabled] -mno-push-args [disabled] -mno-red-zone [disabled] -mno-sse4 [disabled] -momit-leaf-frame-pointer [disabled] -mpc32 [disabled] -mpc64 [disabled] -mpc80 [disabled] -mpclmul [disabled] -mpopcnt [disabled] -mprefer-avx128 [disabled] -mpreferred-stack-boundary= 0 -mprfchw [disabled] -mpush-args [enabled] -mrdrnd [disabled] -mrdseed [disabled] -mrecip [disabled] -mrecip= -mred-zone [enabled] -mregparm= 0 -mrtd [disabled] -mrtm [disabled] -msahf [enabled] -msoft-float [disabled] -msse [enabled] -msse2 [enabled] -msse2avx [disabled] -msse3 [enabled] -msse4 [disabled] -msse4.1 [enabled] -msse4.2 [disabled] -msse4a [disabled] -msse5 -msseregparm [disabled] -mssse3 [enabled] -mstack-arg-probe [disabled] -mstackrealign [enabled] -mstringop-strategy= [default] -mtbm [disabled] -mtls-dialect= gnu -mtls-direct-seg-refs [enabled] -mtune= core2 -muclibc [disabled] -mveclibabi= [default] -mvect8-ret-in-mem [disabled] -mvzeroupper [disabled] -mx32 [disabled] -mxop [disabled] -mxsave [disabled] -mxsaveopt [disabled] Known assembler dialects (for use with the -masm-dialect= option): att intel Known ABIs (for use with the -mabi= option): ms sysv Known code models (for use with the -mcmodel= option): 32 kernel large medium small Valid arguments to -mfpmath=: 387 387+sse 387,sse both sse sse+387 sse,387 Known vectorization library ABIs (for use with the -mveclibabi= option): acml svml Known address mode (for use with the -maddress-mode= option): long short Valid arguments to -mstringop-strategy=: byte_loop libcall loop rep_4byte rep_8byte rep_byte unrolled_loop Known TLS dialects (for use with the -mtls-dialect= option): gnu gnu2