[Bug target/62014] New: [AArch64] Using -mgeneral-regs-only may lead to ICE

[e.menezes at samsung dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62014

            Bug ID: 62014
           Summary: [AArch64] Using -mgeneral-regs-only may lead to ICE
           Product: gcc
           Version: 4.10.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: e.menezes at samsung dot com

Created attachment 33245
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33245&action=edit
This patch should fix this issue, though it needs a test-case.

In some cases, when the LRA spills a register into an FP register, with the
option -mgeneral-regs-only specified, there is an ICE.

It seems to be caused by the LRA assuming that the FP registers are always
available and not being told when they aren't by the target.