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| author | Bernd Schmidt <bernd.schmidt@analog.com> | 2007-04-17 15:29:34 +0000 |
|---|---|---|
| committer | Bernd Schmidt <bernds@gcc.gnu.org> | 2007-04-17 15:29:34 +0000 |
| commit | f2eb49dcfaf3c6d6bb344e7a175576148a7d310e (patch) | |
| tree | fd0b64bc3ce899a06a2c0e1d070967984f1085ae /gcc | |
| parent | 710a179f8acbd09a88742b2fde7d3887a327736b (diff) | |
| download | gcc-f2eb49dcfaf3c6d6bb344e7a175576148a7d310e.zip gcc-f2eb49dcfaf3c6d6bb344e7a175576148a7d310e.tar.gz gcc-f2eb49dcfaf3c6d6bb344e7a175576148a7d310e.tar.bz2 | |
re PR rtl-optimization/10692 ([m68k] miscompilation of perl with -O2 -fPIC)
* reload1.c (delete_output_reload): Don't count output in n_inherited.
Revert
2005-01-05 Richard Henderson <rth@redhat.com>
PR rtl-opt/10692
* reload1.c (do_input_reload): Restrict the optimization deleteing
a previous output reload to RELOAD_FOR_INPUT.
From-SVN: r123913
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 10 | ||||
| -rw-r--r-- | gcc/reload1.c | 15 |
2 files changed, 11 insertions, 14 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index d065322..a315b6f 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,13 @@ +2007-04-17 Bernd Schmidt <bernd.schmidt@analog.com> + + * reload1.c (delete_output_reload): Don't count output in n_inherited. + + Revert + 2005-01-05 Richard Henderson <rth@redhat.com> + PR rtl-opt/10692 + * reload1.c (do_input_reload): Restrict the optimization deleteing + a previous output reload to RELOAD_FOR_INPUT. + 2007-04-17 Dorit Nuzman <dorit@il.ibm.com> * tree-vectorizer.h (stmt_vec_info_type): Add enum value diff --git a/gcc/reload1.c b/gcc/reload1.c index 9a56fc4..8c698ef 100644 --- a/gcc/reload1.c +++ b/gcc/reload1.c @@ -7156,10 +7156,6 @@ do_input_reload (struct insn_chain *chain, struct reload *rl, int j) actually no need to store the old value in it. */ if (optimize - /* Only attempt this for input reloads; for RELOAD_OTHER we miss - that there may be multiple uses of the previous output reload. - Restricting to RELOAD_FOR_INPUT is mostly paranoia. */ - && rl->when_needed == RELOAD_FOR_INPUT && (reload_inherited[j] || reload_override_in[j]) && rl->reg_rtx && REG_P (rl->reg_rtx) @@ -8010,16 +8006,7 @@ delete_output_reload (rtx insn, int j, int last_reload_reg) if (rtx_equal_p (reg2, reg)) { if (reload_inherited[k] || reload_override_in[k] || k == j) - { - n_inherited++; - reg2 = rld[k].out_reg; - if (! reg2) - continue; - while (GET_CODE (reg2) == SUBREG) - reg2 = XEXP (reg2, 0); - if (rtx_equal_p (reg2, reg)) - n_inherited++; - } + n_inherited++; else return; } |