On 4/2/19 12:31 PM, Roman Lebedev via cfe-commits wrote: > Best to submit patches to phabricator https://reviews.llvm.org/
Please follow the instructions here: http://llvm.org/docs/Phabricator.html#requesting-a-review-via-the-web-interface - This will make it much easier for us to track this. Thanks! -Hal > > On Tue, Apr 2, 2019 at 8:30 PM George Koehler via cfe-commits > <cfe-commits@lists.llvm.org> wrote: >> Hello cfe-commits, >> >> The attached patch is for clang to use -fomit-frame-pointer by default >> for all PowerPC targets when optimizing code. Right now, clang uses >> -fomit-frame-pointer for PowerPC Linux and NetBSD but not for other >> targets. I have been running `clang -target powerpc-openbsd`. >> >> The patch is for llvm-project.git master. I previously posted this >> patch to https://bugs.llvm.org/show_bug.cgi?id=41094 , but the patch >> in this email is for a newer revision of master. >> >> In most functions, the frame pointer in r31 is an unnecessary extra >> copy of the stack pointer in r1. GCC is using -fomit-frame-pointer by >> default (in my PowerPC machine running OpenBSD/macppc); I want Clang >> to be at least as good as GCC. Also, this patch helps me to compare >> the output of `clang -target powerpc-openbsd -O2 -S` with the output >> for Linux or NetBSD. In bug 41094, I showed how -fomit-frame-pointer >> simplifies the C function `void nothing(void) {}`. >> >> This is my first mail to cfe-commits; I'm using the instructions at >> http://llvm.org/docs/DeveloperPolicy.html#making-and-submitting-a-patch >> >> -- >> George Koehler <kern...@gmail.com> >> _______________________________________________ >> cfe-commits mailing list >> cfe-commits@lists.llvm.org >> https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits > _______________________________________________ > cfe-commits mailing list > cfe-commits@lists.llvm.org > https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits -- Hal Finkel Lead, Compiler Technology and Programming Languages Leadership Computing Facility Argonne National Laboratory _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
