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| author | Richard Biener <rguenther@suse.de> | 2015-04-13 12:42:41 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2015-04-13 12:42:41 +0000 |
| commit | c4ef2f8634669376c85304a5ebe181edf4f73a4c (patch) | |
| tree | f454e18a763b6ae39cd70081499f44af78a8165f /gcc/tree-ssa-ccp.c | |
| parent | 54a3a620046c47bfda0deb529cf3c4284561ce8a (diff) | |
| download | gcc-c4ef2f8634669376c85304a5ebe181edf4f73a4c.zip gcc-c4ef2f8634669376c85304a5ebe181edf4f73a4c.tar.gz gcc-c4ef2f8634669376c85304a5ebe181edf4f73a4c.tar.bz2 | |
re PR tree-optimization/65204 (Aligned address optimization not detected)
2015-04-13 Richard Biener <rguenther@suse.de>
PR tree-optimization/65204
* tree-ssa-ccp.c (evaluate_stmt): Always evaluate address
takens for bit-CCP.
* gcc.dg/tree-ssa/ssa-ccp-35.c: New testcase.
From-SVN: r222049
Diffstat (limited to 'gcc/tree-ssa-ccp.c')
| -rw-r--r-- | gcc/tree-ssa-ccp.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/tree-ssa-ccp.c b/gcc/tree-ssa-ccp.c index d45a3ff..9fbea3a 100644 --- a/gcc/tree-ssa-ccp.c +++ b/gcc/tree-ssa-ccp.c @@ -1748,7 +1748,9 @@ evaluate_stmt (gimple stmt) /* Resort to simplification for bitwise tracking. */ if (flag_tree_bit_ccp - && (likelyvalue == CONSTANT || is_gimple_call (stmt)) + && (likelyvalue == CONSTANT || is_gimple_call (stmt) + || (gimple_assign_single_p (stmt) + && gimple_assign_rhs_code (stmt) == ADDR_EXPR)) && !is_constant) { enum gimple_code code = gimple_code (stmt); |