[Bug rtl-optimization/35232] [4.3/4.4 regression] ICE in fp-int-convert-double.c at -O2

["rsandifo at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #4 from rsandifo at gcc dot gnu dot org  2008-03-25 20:43 -------
Subject: Bug 35232

Author: rsandifo
Date: Tue Mar 25 20:43:06 2008
New Revision: 133531

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=133531
Log:
gcc/
        PR rtl-optimization/35232
        * reload1.c (reg_reloaded_call_part_clobbered): Clarify comment.
        (forget_old_reloads_1, forget_marked_reloads): Don't clear
        reg_reloaded_call_part_clobbered here.
        (reload_regs_reach_end_p): New function.
        (reload_reg_rtx_for_input): New variable.
        (reload_reg_rtx_for_output): Likewise.
        (emit_input_reload_insns): Use reloadreg rather than rl->reg_rtx
        when reassigning a pseudo register.  Load reloadreg from 
        reload_reg_rtx_for_input, moving the mode and register
        calculation to...
        (do_input_reload): ...here.  Use the mode-adjusted reg_rtx
        instead of the original when deciding whether an input reload
        would be a no-op or whether an output reload can be deleted.
        (emit_output_reload_insns): Use the mode-adjusted reg_rtx
        when setting up new_spill_reg_store.  Load it from
        reload_reg_rtx_for_output, moving the mode and register
        calculation to...
        (do_output_reload): ...here.  Use the mode-adjusted reg_rtx
        instead of the original when deciding whether an output reload
        would be a no-op.  Do the same when modifying insn notes.
        Use rtx_equal_p instead of == to compare the registers.
        (inherit_piecemeal_p): Take a mode and two register numbers
        as argument.
        (emit_reload_insns): Clear new_spill_reg_store for every hard
        register in the reload register.  Remove spill registers
        from reg_reloaded_valid before considering whether to record
        inheritance information for them.  Use reload_reg_rtx_for_output
        instead of reg_rtx when recording output reloads.  Use
        reload_reg_rtx_for_input instead of reg_rtx when recording
        input reloads.  Set or clear reg_reloaded_call_part_clobbered
        at the same time as setting reg_reloaded_valid.
        (delete_output_reload): Add a new_reload_reg parameter and use it
        instead of rld[j].reg_rtx.
        (emit_input_reload_insns, do_input_reload, do_output_reload): Adjust
        calls accordingly.

gcc/testsuite/
        PR rtl-optimization/35232
        * gcc.target/mips/pr35232.c: New test.

Added:
    trunk/gcc/testsuite/gcc.target/mips/pr35232.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/reload1.c
    trunk/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35232