From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 549 invoked by alias); 20 Aug 2010 15:58:51 -0000 Received: (qmail 337 invoked by uid 48); 20 Aug 2010 15:58:32 -0000 Date: Fri, 20 Aug 2010 15:58:00 -0000 Subject: [Bug target/45359] New: poor -march=native choices for VIA C7 Esther processors X-Bugzilla-Reason: CC Message-ID: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "opod at nic-nac-project dot org" 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 X-SW-Source: 2010-08/txt/msg01673.txt.bz2 C7 is a x86 CPU from VIA based on Esther (C5J) core evolved from the Nehemiah+ (C5P) core found in the C3-2 line. /proc/cpuinfo processor : 0 vendor_id : CentaurHauls cpu family : 6 model : 10 model name : VIA Esther processor 800MHz stepping : 9 cpu MHz : 399.008 cache size : 128 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge cmov pat clflush acpi mmx fxsr sse sse2 tm nx up pni est tm2 rng rng_en ace ace_en ace2 ace2_en phe phe_en pmm pmm_en bogomips : 798.02 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 32 bits virtual gcc -v -fverbose-asm -march=native -S test.c Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/lib/gcc/i686-pc-linux-gnu/4.5.1/lto-wrapper Target: i686-pc-linux-gnu Configured with: ../configure --prefix=/usr --enable-languages=c,c++,fortran,objc,obj-c++,ada --enable-shared --enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu --enable-gnu-unique-object --enable-lto --enable-plugin --disable-multilib --disable-libstdcxx-pch --with-system-zlib --with-ppl --with-cloog --libdir=/usr/lib --libexecdir=/usr/lib --mandir=/usr/share/man --infodir=/usr/share/info Thread model: posix gcc version 4.5.1 (GCC) COLLECT_GCC_OPTIONS='-v' '-fverbose-asm' '-S' /usr/lib/gcc/i686-pc-linux-gnu/4.5.1/cc1 -quiet -v test.c -march=pentium-m -mtune=generic -quiet -dumpbase test.c -auxbase test -version -fverbose-asm -o test.s [snip] cat test.s # GNU C (GCC) version 4.5.1 (i686-pc-linux-gnu) # compiled by GNU C version 4.5.1, GMP version 5.0.1, MPFR version 3.0.0-p3, MPC version 0.8.2 # GGC heuristics: --param ggc-min-expand=63 --param ggc-min-heapsize=62811 # options passed: test.c -march=pentium-m -mtune=generic -fverbose-asm # options enabled: -falign-loops -fargument-alias -fauto-inc-dec # -fbranch-count-reg -fcommon -fdelete-null-pointer-checks -fdwarf2-cfi-asm # -fearly-inlining -feliminate-unused-debug-types -ffunction-cse -fgcse-lm # -fident -finline-functions-called-once -fira-share-save-slots # -fira-share-spill-slots -fivopts -fkeep-static-consts # -fleading-underscore -fmath-errno -fmerge-debug-strings # -fmove-loop-invariants -fpcc-struct-return -fpeephole # -fsched-critical-path-heuristic -fsched-dep-count-heuristic # -fsched-group-heuristic -fsched-interblock -fsched-last-insn-heuristic # -fsched-rank-heuristic -fsched-spec -fsched-spec-insn-heuristic # -fsched-stalled-insns-dep -fshow-column -fsigned-zeros # -fsplit-ivs-in-unroller -ftrapping-math -ftree-cselim -ftree-forwprop # -ftree-loop-im -ftree-loop-ivcanon -ftree-loop-optimize # -ftree-parallelize-loops= -ftree-phiprop -ftree-pta -ftree-reassoc # -ftree-scev-cprop -ftree-slp-vectorize -ftree-vect-loop-version # -funit-at-a-time -fvect-cost-model -fverbose-asm # -fzero-initialized-in-bss -m32 -m80387 -m96bit-long-double # -maccumulate-outgoing-args -malign-stringops -mfancy-math-387 # -mfp-ret-in-387 -mfused-madd -mglibc -mieee-fp -mmmx -mno-red-zone # -mno-sse4 -mpush-args -msahf -msse -msse2 -mtls-direct-seg-refs -- Summary: poor -march=native choices for VIA C7 Esther processors Product: gcc Version: 4.5.1 Status: UNCONFIRMED Severity: minor Priority: P3 Component: target AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: opod at nic-nac-project dot org GCC target triplet: i686-pc-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45359