Best to submit patches to phabricator https://reviews.llvm.org/
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
