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| author | Andrew Pinski <pinskia@gcc.gnu.org> | 2008-08-26 12:02:05 -0700 |
|---|---|---|
| committer | Andrew Pinski <pinskia@gcc.gnu.org> | 2008-08-26 12:02:05 -0700 |
| commit | 24713e85ff118e760314625f58f4329df71031d6 (patch) | |
| tree | c76589964fab5b9ad0bc9fa8798ce1ea9e4d6522 /gcc/fwprop.c | |
| parent | a8e17e9ea71adffbceaecb8e217042a8f998bd93 (diff) | |
| download | gcc-24713e85ff118e760314625f58f4329df71031d6.zip gcc-24713e85ff118e760314625f58f4329df71031d6.tar.gz gcc-24713e85ff118e760314625f58f4329df71031d6.tar.bz2 | |
re PR rtl-optimization/37219 (fwprop1 is broken for addresses)
2008-08-26 Andrew Pinski <andrew_pinski@playstation.sony.com>
PR rtl-opt/37219
* fwprop.c (fwprop): Check that the loop_father is the outer loop.
(fwprop_addr): Check that the loop_father is not the outer loop.
From-SVN: r139605
Diffstat (limited to 'gcc/fwprop.c')
| -rw-r--r-- | gcc/fwprop.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/gcc/fwprop.c b/gcc/fwprop.c index fbe4329..7c61ca0 100644 --- a/gcc/fwprop.c +++ b/gcc/fwprop.c @@ -1056,7 +1056,9 @@ fwprop (void) struct df_ref *use = DF_USES_GET (i); if (use) if (DF_REF_TYPE (use) == DF_REF_REG_USE - || DF_REF_BB (use)->loop_father == NULL) + || DF_REF_BB (use)->loop_father == NULL + /* The outer most loop is not really a loop. */ + || loop_outer (DF_REF_BB (use)->loop_father) == NULL) forward_propagate_into (use); } @@ -1099,7 +1101,9 @@ fwprop_addr (void) struct df_ref *use = DF_USES_GET (i); if (use) if (DF_REF_TYPE (use) != DF_REF_REG_USE - && DF_REF_BB (use)->loop_father != NULL) + && DF_REF_BB (use)->loop_father != NULL + /* The outer most loop is not really a loop. */ + && loop_outer (DF_REF_BB (use)->loop_father) != NULL) forward_propagate_into (use); } |