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| author | Richard Henderson <rth@redhat.com> | 2003-03-22 17:40:04 -0800 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2003-03-22 17:40:04 -0800 |
| commit | 3ce6bef0f97391a518fe5a7be4a65bb1ed103182 (patch) | |
| tree | a74d627ef14953efdc3431beb769188b0728e42b /gcc/cfgcleanup.c | |
| parent | de32716c0dc0a842db46ab4ebba49be4b0763b62 (diff) | |
| download | gcc-3ce6bef0f97391a518fe5a7be4a65bb1ed103182.zip gcc-3ce6bef0f97391a518fe5a7be4a65bb1ed103182.tar.gz gcc-3ce6bef0f97391a518fe5a7be4a65bb1ed103182.tar.bz2 | |
cfgcleanup.c (insns_match_p): Do not do EQUIV substitution after reload.
* cfgcleanup.c (insns_match_p): Do not do EQUIV substitution
after reload.
From-SVN: r64738
Diffstat (limited to 'gcc/cfgcleanup.c')
| -rw-r--r-- | gcc/cfgcleanup.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/gcc/cfgcleanup.c b/gcc/cfgcleanup.c index 76aebc4..42dc0a9 100644 --- a/gcc/cfgcleanup.c +++ b/gcc/cfgcleanup.c @@ -967,7 +967,15 @@ insns_match_p (mode, i1, i2) #endif if (reload_completed - ? ! rtx_renumbered_equal_p (p1, p2) : ! rtx_equal_p (p1, p2)) + ? rtx_renumbered_equal_p (p1, p2) : rtx_equal_p (p1, p2)) + return true; + + /* Do not do EQUIV substitution after reload. First, we're undoing the + work of reload_cse. Second, we may be undoing the work of the post- + reload splitting pass. */ + /* ??? Possibly add a new phase switch variable that can be used by + targets to disallow the troublesome insns after splitting. */ + if (!reload_completed) { /* The following code helps take care of G++ cleanups. */ rtx equiv1 = find_reg_equal_equiv_note (i1); @@ -994,11 +1002,9 @@ insns_match_p (mode, i1, i2) return true; } } - - return false; } - return true; + return false; } /* Look through the insns at the end of BB1 and BB2 and find the longest |