LTO bootstrap compare errors for ARM64

2014-08-03 Thread Venkataramanan Kumar
Hi, I am trying to bootstrap of GCC 4.9 FSF branch with LTO on native Aarch64 , The bootstrap build results in compare errors. Command line. gcc-4_9/configure --with-build-config=bootstrap-lto --disable-werror --enable-languages=c,c++,fortran --prefix=/work/vekumar/lto

Re: LTO bootstrap compare errors for ARM64

2014-08-11 Thread Venkataramanan Kumar
Hi Honza, I did not find any differences in tree level dumps. These are the dump differences in IPA In gimple-fold.c.000i.cgraph (--Snip--) < _Z25gimple_build_omp_continueP9tree_nodeS0_/761 (gimple_build_omp_continue(tree_node*, tree_node*)) @0x3ff7ebda548 --- > _Z25gimple_build_omp_continueP9tr

Re: LTO bootstrap compare errors for ARM64

2014-08-20 Thread Venkataramanan Kumar
tage1 with ---enable-checking=release. regards, Venkat On 11 August 2014 16:20, Venkataramanan Kumar wrote: > Hi Honza, > > I did not find any differences in tree level dumps. These are the dump > differences in IPA > > In gimple-fo

LTO IPA inline decisions in GCC trunk.

2014-11-06 Thread Venkataramanan Kumar
Hi Honza, I experimented building Coremark with both PGO and LTO at -O3 level on Aarch64 machine. First I generated profiles using the recommended seeds in Coremark's readme.txt. Then compiled again with -O3 -flto and -fprofile-use. I tried using GCC Linaro compiler (september) which is based on