Dominik Vogt wrote: > The attached patch enables using r1 to r4 as the literal pool base pointer if > one of them is unused in a leaf function. The unpatched code supports only r5 > and r13.
I don't think that r1 is actually safe here. Note that it may be used (unconditionally) as temp register in s390_emit_prologue in certain cases; the upcoming split-stack code will also need to use r1 in some cases. r2 through r4 should be fine. [ Not sure if there will be many (any?) cases where one of those is unused but r5 isn't, however. ] Bye, Ulrich -- Dr. Ulrich Weigand GNU/Linux compilers and toolchain ulrich.weig...@de.ibm.com
