diff options
| author | Jim Wilson <wilson@gcc.gnu.org> | 1992-10-01 12:18:06 -0700 |
|---|---|---|
| committer | Jim Wilson <wilson@gcc.gnu.org> | 1992-10-01 12:18:06 -0700 |
| commit | 9ad5f9f60427d3e31ba7986f20cfc0a6d82a03aa (patch) | |
| tree | b9685109eb138a7965830fabf3dbd39fdd78e030 | |
| parent | ae51bd971e8d262b62459d992d7086e42642f168 (diff) | |
| download | gcc-9ad5f9f60427d3e31ba7986f20cfc0a6d82a03aa.zip gcc-9ad5f9f60427d3e31ba7986f20cfc0a6d82a03aa.tar.gz gcc-9ad5f9f60427d3e31ba7986f20cfc0a6d82a03aa.tar.bz2 | |
(emit_reload_insns): Add a case to handle
SECONDARY_MEMORY_NEEDED in the SECONDARY_OUTPUT_RELOAD_CLASS code.
From-SVN: r2302
| -rw-r--r-- | gcc/reload1.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/gcc/reload1.c b/gcc/reload1.c index 2d6b43b..31b1dfa 100644 --- a/gcc/reload1.c +++ b/gcc/reload1.c @@ -5375,6 +5375,35 @@ emit_reload_insns (insn) pat = (GEN_FCN (tertiary_icode) (reloadreg, second_reloadreg, third_reloadreg)); } +#ifdef SECONDARY_MEMORY_NEEDED + /* If we need a memory location to do the move, do it that way. */ + else if (GET_CODE (reloadreg) == REG + && REGNO (reloadreg) < FIRST_PSEUDO_REGISTER + && SECONDARY_MEMORY_NEEDED (REGNO_REG_CLASS (REGNO (reloadreg)), + REGNO_REG_CLASS (REGNO (second_reloadreg)), + GET_MODE (second_reloadreg))) + { + /* Get the memory to use and rewrite both registers + to its mode. */ + rtx loc = get_secondary_mem (reloadreg, + GET_MODE (second_reloadreg)); + rtx tmp_reloadreg; + + if (GET_MODE (loc) != GET_MODE (second_reloadreg)) + second_reloadreg = gen_rtx (REG, GET_MODE (loc), + REGNO (second_reloadreg)); + + if (GET_MODE (loc) != GET_MODE (reloadreg)) + tmp_reloadreg = gen_rtx (REG, GET_MODE (loc), + REGNO (reloadreg)); + else + tmp_reloadreg = reloadreg; + + emit_insn_before (gen_move_insn (loc, second_reloadreg), + first_output_reload_insn); + pat = gen_move_insn (tmp_reloadreg, loc); + } +#endif else pat = gen_move_insn (reloadreg, second_reloadreg); |