Re: [RS6000] Stop regrename twiddling with split-stack prologue

2016-05-09 Thread Segher Boessenkool
On Wed, May 04, 2016 at 10:41:07PM +0930, Alan Modra wrote: > Bootstrap and regression tested powerpc64le-linux. Fixes 771 Go > testsuite regressions. OK to apply everywhere? > > The alternative of adding all parameter regs used by cfun to the > __morestack CALL_INSN_FUNCTION_USAGE and uses for

[RS6000] Stop regrename twiddling with split-stack prologue

2016-05-04 Thread Alan Modra
Bootstrap and regression tested powerpc64le-linux. Fixes 771 Go testsuite regressions. OK to apply everywhere? The alternative of adding all parameter regs used by cfun to the __morestack CALL_INSN_FUNCTION_USAGE and uses for cfun return value regs seems overkill when all we need to do is protec