git
/
gcc
mirror of git://gcc.gnu.org/git/gcc.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

tree-ssa-threadbackward.c (profitable_jump_thread_path): Treat same SSA names related. 

2016-08-09  Richard Biener  <rguenther@suse.de>

	* tree-ssa-threadbackward.c (profitable_jump_thread_path):
        Treat same SSA names related.

From-SVN: r239276
This commit is contained in:
Richard Biener 2016-08-09 08:09:21 +00:00 committed by Richard Biener
parent 9e207d6fec
commit fda5c810e1
2 changed files with 8 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
gcc/ChangeLog
View File

@ -1,3 +1,8 @@
2016-08-09 Richard Biener <rguenther@suse.de>
* tree-ssa-threadbackward.c (profitable_jump_thread_path):
Treat same SSA names related.
2016-08-09 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/72824

3
gcc/tree-ssa-threadbackward.c
View File

@ -207,7 +207,8 @@ profitable_jump_thread_path (vec<basic_block, va_gc> *&path,
/* Note that if both NAME and DST are anonymous
SSA_NAMEs, then we do not have enough information
to consider them associated. */
if ((SSA_NAME_VAR (dst) != SSA_NAME_VAR (name)
if (dst != name
&& (SSA_NAME_VAR (dst) != SSA_NAME_VAR (name)
|| !SSA_NAME_VAR (dst))
&& !virtual_operand_p (dst))
++n_insns;