| commit | f4bed77be41f90e53463f8bf7a71ff503402a963 | |
| author | Richard Biener <rguenther@suse.de> | |
| Thu, 17 Oct 2013 09:59:47 +0000 (17 09:59 +0000) | ||
| committer | Richard Biener <rguenth@gcc.gnu.org> | |
| Thu, 17 Oct 2013 09:59:47 +0000 (17 09:59 +0000) | ||
| tree | 8d7974135748186f9ae1e8c1ad50e589d9721b56 | treesnapshot (tar.gz zip) |
| parent | 568a31f2f6e231543a32e388c12ee8da9df23c53 | commitdiff |
re PR tree-optimization/58143 (wrong code at -O3)
2013-10-17 Richard Biener <rguenther@suse.de>
PR tree-optimization/58143
* tree-ssa-loop-im.c (arith_code_with_undefined_signed_overflow):
New function.
(rewrite_to_defined_overflow): Likewise.
(move_computations_dom_walker::before_dom): Rewrite stmts
with undefined signed overflow that are not always executed
into unsigned arithmetic.
* gcc.dg/torture/pr58143-1.c: New testcase.
* gcc.dg/torture/pr58143-2.c: Likewise.
* gcc.dg/torture/pr58143-3.c: Likewise.
From-SVN: r203745
2013-10-17 Richard Biener <rguenther@suse.de>
PR tree-optimization/58143
* tree-ssa-loop-im.c (arith_code_with_undefined_signed_overflow):
New function.
(rewrite_to_defined_overflow): Likewise.
(move_computations_dom_walker::before_dom): Rewrite stmts
with undefined signed overflow that are not always executed
into unsigned arithmetic.
* gcc.dg/torture/pr58143-1.c: New testcase.
* gcc.dg/torture/pr58143-2.c: Likewise.
* gcc.dg/torture/pr58143-3.c: Likewise.
From-SVN: r203745
| gcc/ChangeLog | diffblobblamehistory | |
| gcc/testsuite/ChangeLog | diffblobblamehistory | |
| gcc/testsuite/gcc.dg/torture/pr58143-1.c | [new file with mode: 0644] | blob |
| gcc/testsuite/gcc.dg/torture/pr58143-2.c | [new file with mode: 0644] | blob |
| gcc/testsuite/gcc.dg/torture/pr58143-3.c | [new file with mode: 0644] | blob |
| gcc/tree-ssa-loop-im.c | diffblobblamehistory |