On Thu, Oct 9, 2008 at 10:57 AM, Andrew Haley <aph@xxxxxxxxxx> wrote: >> I need only stack usage optimization and NO code optimization (to let >> us easly debug the code), which parameters I need to use? > It's not possible. I try to relax my constraint. I need to reduce stack usage and keep the project debuggable (maybe with some code optimization) which set of parameters do I need to use. Last, only for curiosity, how can I reproduce exacly the behaviour of -O0? as I said in previous mail I tried with -O1 -fno-defer-pop -fno-delayed-branch -fno-guess-branch-probability -fno-cprop-registers -fno-if-conversion -fno-if-conversion2 -fno-tree-ccp -fno-tree-dce -fno-tree-dominator-opts -fno-tree-dse -fno-tree-ter -fno-tree-lrs -fno-tree-sra -fno-tree-copyrename -fno-tree-fre -fno-tree-ch -fno-unit-at-a-time -fno-merge-constants -fno-ipa-pure-const -fno-ipa-reference -fno-omit-frame-pointer -fno-tree-copy-prop -fno-tree-salias -fno-tree-sink -fno-var-tracking -fno-caller-saves and I obtain a binary quite much optimized than which one optained only with -O0. So which parameter are missing from that list? thanks -- Pro pace mundi adversus meganoides tertio Daitarn pugnabo. Nisi times hanc vim, pugna! Massimiliano Cialdi cialdi@xxxxxxxxx massimiliano.cialdi@xxxxxxxxxxxx
