mips.c (mips_split_64bit_move): Use gen_rtx_REG_offset rather than gen_lowpart to change a register from DImode...
gcc/
* config/mips/mips.c (mips_split_64bit_move): Use gen_rtx_REG_offset
rather than gen_lowpart to change a register from DImode to DFmode.
(mips_cannot_change_mode_class): Only allow FPRs to change mode if
both FROM and TO are integer modes that are no bigger than 4 bytes.
(mips_mode_ok_for_mov_fmt_p): New function.
(mips_preferred_reload_class): Use it instead of FLOAT_MODE_P.
(mips_secondary_reload_class): Tweak formatting and comments.
Use reg_class_subset_p instead of direct comparisons with
classes. Only allow direct FPR<->FPR moves for modes that
satisfy mips_mode_ok_for_mov_fmt_p. Only allow loads and stores
for 4- and 8-byte types. Handle reloads in which X is an FPR.
* config/mips/mips.md (*movdi_gp32_fp64): Remove f<-f alternative.
(*movdi_64bit): Likewise.
(*movsi_internal): Likewise.
(*movhi_internal): Likewise.
(*movqi_internal): Likewise.
From-SVN: r128894
