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| author | Jeff Law <law@gcc.gnu.org> | 1994-08-13 11:51:15 -0600 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 1994-08-13 11:51:15 -0600 |
| commit | cf19d2a9d80c2e2b71f23b962dd4b871667c39df (patch) | |
| tree | d97a853cd9a5947e97b482afb727aa161d269598 | |
| parent | 336d6f0a7e2a25d3a50b7afe1d43b3a40e89e22e (diff) | |
| download | gcc-cf19d2a9d80c2e2b71f23b962dd4b871667c39df.zip gcc-cf19d2a9d80c2e2b71f23b962dd4b871667c39df.tar.gz gcc-cf19d2a9d80c2e2b71f23b962dd4b871667c39df.tar.bz2 | |
reload1.c (emit_reload_insns): Handle a secondary input reload which needs to use secondary memory too.
* reload1.c (emit_reload_insns): Handle a secondary input reload
which needs to use secondary memory too.
From-SVN: r7912
| -rw-r--r-- | gcc/reload1.c | 46 |
1 files changed, 44 insertions, 2 deletions
diff --git a/gcc/reload1.c b/gcc/reload1.c index 1ae4116..2891bd3 100644 --- a/gcc/reload1.c +++ b/gcc/reload1.c @@ -6001,8 +6001,50 @@ emit_reload_insns (insn) { if (icode != CODE_FOR_nothing) { - emit_insn (GEN_FCN (icode) (reloadreg, real_oldequiv, - second_reload_reg)); + rtx pat; +#ifdef SECONDARY_MEMORY_NEEDED + /* If we need a memory location to do the move, do + it that way. */ + if (GET_CODE (real_oldequiv) == REG + && REGNO (real_oldequiv) < FIRST_PSEUDO_REGISTER + && SECONDARY_MEMORY_NEEDED + (REGNO_REG_CLASS (REGNO (real_oldequiv)), + REGNO_REG_CLASS (REGNO (second_reload_reg)), + GET_MODE (second_reload_reg))) + { + /* Get the memory to use and rewrite both + registers to its mode. */ + rtx loc + = get_secondary_mem (real_oldequiv, + GET_MODE (second_reload_reg), + reload_opnum[j], + reload_when_needed[j]); + rtx tmp_reloadreg; + + if (GET_MODE (loc) + != GET_MODE (second_reload_reg)) + second_reload_reg + = gen_rtx (REG, + GET_MODE (loc), + REGNO (second_reload_reg)); + + if (GET_MODE (loc) != GET_MODE (real_oldequiv)) + tmp_reloadreg = gen_rtx (REG, GET_MODE (loc), + REGNO (real_oldequiv)); + else + tmp_reloadreg = real_oldequiv; + + emit_move_insn (loc, tmp_reloadreg); + emit_move_insn (second_reload_reg, loc); + pat = gen_move_insn (reloadreg, second_reload_reg); + + } + else +#endif + pat = GEN_FCN (icode) (reloadreg, + real_oldequiv, + second_reload_reg); + emit_insn (pat); special = 1; } else |