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| author | Richard Kenner <kenner@gcc.gnu.org> | 1993-04-03 17:39:33 -0500 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 1993-04-03 17:39:33 -0500 |
| commit | 2c9ce2effc5b3946371d14fe7ae093d6ac1bc112 (patch) | |
| tree | 32b383fd9ddd1a5ef9e6258e14a5f30c7a87c19b /gcc | |
| parent | c03b7665c267cb9a910c05323c8d4c0571711cd0 (diff) | |
| download | gcc-2c9ce2effc5b3946371d14fe7ae093d6ac1bc112.zip gcc-2c9ce2effc5b3946371d14fe7ae093d6ac1bc112.tar.gz gcc-2c9ce2effc5b3946371d14fe7ae093d6ac1bc112.tar.bz2 | |
(emit_reload_insns): Don't update the status of a register from an
input reload if it also has an output reload.
From-SVN: r3994
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/reload1.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/gcc/reload1.c b/gcc/reload1.c index e6302c2..bcbd68f 100644 --- a/gcc/reload1.c +++ b/gcc/reload1.c @@ -6148,11 +6148,15 @@ emit_reload_insns (insn) } } - /* Maybe the spill reg contains a copy of reload_in. */ + /* Maybe the spill reg contains a copy of reload_in. Only do + something if there will not be an output reload for + the register being reloaded. */ else if (reload_out[r] == 0 && reload_in[r] != 0 - && (GET_CODE (reload_in[r]) == REG - || GET_CODE (reload_in_reg[r]) == REG)) + && ((GET_CODE (reload_in[r]) == REG + && ! reg_has_output_reload[REGNO (reload_in[r])] + || (GET_CODE (reload_in_reg[r]) == REG + && ! reg_has_output_reload[REGNO (reload_in_reg[r])])))) { register int nregno; int nnr; |