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| author | Jan Hubicka <jh@suse.cz> | 2001-11-19 18:08:48 +0100 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2001-11-19 17:08:48 +0000 |
| commit | 7fcd72187907e12fa670d7c4794641691b30e825 (patch) | |
| tree | b294c67de998851f229c1f90e61eb62fdc07c65f /gcc/gcse.c | |
| parent | f83fd9ae2ea1ea580626ed3171c1f5c46a4a05ea (diff) | |
| download | gcc-7fcd72187907e12fa670d7c4794641691b30e825.zip gcc-7fcd72187907e12fa670d7c4794641691b30e825.tar.gz gcc-7fcd72187907e12fa670d7c4794641691b30e825.tar.bz2 | |
gcse.c (try_replace_reg): Copy RTX before creating note.
* gcse.c (try_replace_reg): Copy RTX before creating note.
* df.h (df_ref_flags): New uenum.
(DF_REF_FLAGS): New macro.
(struct ref): Add field "flags".
* df.c (HANDLE_SUBREG): Remove.
(df_ref_create): Likewise; set flags field of ref.
(df_def_record_1): Strip down read_write subreg; remove
commented out code; set READ_WRITE flag.
(read_modify_subreg_p): New static function.
(df_uses_record): Cleanup SET handling; set READ_WRITE flag;
new argument "flags".
(df_insn_refs_record): Update call of df_uses_record.
(df_insn_modify): Avoid #if 0 around comment.
(df_dump): Dump the read/write flag.
* predict.c (propagate_freq): Make cyclic_probability and frequency
volatile
* i386.c (ix86_cc_mode): Accept USE.
* cfgrtl.c (purge_dead_edges): Cleanup EDGE_ABNORMAL flag if computed
jump is turned into simplejump.
From-SVN: r47175
Diffstat (limited to 'gcc/gcse.c')
| -rw-r--r-- | gcc/gcse.c | 2 |
1 files changed, 1 insertions, 1 deletions
@@ -3929,7 +3929,7 @@ try_replace_reg (from, to, insn) /* If we've failed to do replacement, have a single SET, and don't already have a note, add a REG_EQUAL note to not lose information. */ if (!success && note == 0 && set != 0) - note = set_unique_reg_note (insn, REG_EQUAL, src); + note = set_unique_reg_note (insn, REG_EQUAL, copy_rtx (src)); /* If there is already a NOTE, update the expression in it with our replacement. */ |