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| author | Jeffrey A Law <law@cygnus.com> | 1998-07-06 20:33:33 +0000 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 1998-07-06 14:33:33 -0600 |
| commit | 3b39dde8e3159fe1e286fa3e90fcdab33267cdee (patch) | |
| tree | 16d461ceb1205343e6d43218a91bc19a6239d494 /gcc/reload.c | |
| parent | 6c011b01ce31ae105faef46b7d6c583533269a8e (diff) | |
| download | gcc-3b39dde8e3159fe1e286fa3e90fcdab33267cdee.zip gcc-3b39dde8e3159fe1e286fa3e90fcdab33267cdee.tar.gz gcc-3b39dde8e3159fe1e286fa3e90fcdab33267cdee.tar.bz2 | |
* Disable the following change from gcc2. Not appropriate for egcs:
Sun Jun 7 09:30:31 1998 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* reload.c (find_reloads): Give preference to pseudo that was the
reloaded output of previous insn.
From-SVN: r20955
Diffstat (limited to 'gcc/reload.c')
| -rw-r--r-- | gcc/reload.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/gcc/reload.c b/gcc/reload.c index c010943..ab04ae3 100644 --- a/gcc/reload.c +++ b/gcc/reload.c @@ -3222,14 +3222,20 @@ find_reloads (insn, replace, ind_levels, live_known, reload_reg_p) && this_alternative_matches[i] < 0) bad = 1; +#if 0 /* If this is a pseudo-register that is set in the previous insns, there's a good chance that it will already be in a spill register and we can use that spill register. So - make this case cheaper. */ + make this case cheaper. + + Disabled for egcs. egcs has better inheritance code and + this change causes problems with the improved reload + inheritance code. */ if (GET_CODE (operand) == REG && REGNO (operand) >= FIRST_PSEUDO_REGISTER && REGNO (operand) == last_output_reload_regno) reject--; +#endif /* If this is a constant that is reloaded into the desired class by copying it to memory first, count that as another |