On Thu, Mar 12, 2015 at 9:11 AM, Tom de Vries <tom_devr...@mentor.com> wrote:
>> Attached patch adds nonpic target requirement for some (obvious) >> cases, where data access or PIC register setup confuses scan-asms. >> >> 2015-01-30 Uros Bizjak <ubiz...@gmail.com> >> >> * gcc.target/i386/fuse-caller-save-rec.c: Require nonpic target. >> * gcc.target/i386/fuse-caller-save-xmm.c: Ditto. >> * gcc.target/i386/fuse-caller-save.c: Ditto. > > > Hi, > > I've reverted this part of the patch. The scans were failing because the > -fipa-ra optimization was broken for -m32 -fpic (PR64895). Not really. Allocator is free to allocate %ebx (or other call-saved register) as PIC register. In this case, unwanted push/pop sequence will be emitted. Uros.
