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| author | Kyrylo Tkachov <kyrylo.tkachov@arm.com> | 2016-11-08 12:31:31 +0000 |
|---|---|---|
| committer | Kyrylo Tkachov <ktkachov@gcc.gnu.org> | 2016-11-08 12:31:31 +0000 |
| commit | 1f069ef5a1899e119979b755c6627bb19176a4f0 (patch) | |
| tree | 9e7ddb887c4f6fd1064e87cc8f1150ad26da6540 | |
| parent | fcd1b8dffcaa5806e62d0203b13ad1696fec254f (diff) | |
| download | gcc-1f069ef5a1899e119979b755c6627bb19176a4f0.zip gcc-1f069ef5a1899e119979b755c6627bb19176a4f0.tar.gz gcc-1f069ef5a1899e119979b755c6627bb19176a4f0.tar.bz2 | |
[1/2] Fix off-by-one error in clear_bit_region in store merging (PR tree-optimization/78234 ?)
PR tree-optimization/78234
* gimple-ssa-store-merging.c (clear_bit_region): Fix off-by-one error
in start != 0 case.
From-SVN: r241962
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/gimple-ssa-store-merging.c | 2 |
2 files changed, 7 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index f06b68e..b4169ed 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2016-11-08 Kyrylo Tkachov <kyrylo.tkachov@arm.com> + + PR tree-optimization/78234 + * gimple-ssa-store-merging.c (clear_bit_region): Fix off-by-one error + in start != 0 case. + 2016-11-08 Martin Liska <mliska@suse.cz> PR testsuite/78242 diff --git a/gcc/gimple-ssa-store-merging.c b/gcc/gimple-ssa-store-merging.c index 57b8556..727ed9f 100644 --- a/gcc/gimple-ssa-store-merging.c +++ b/gcc/gimple-ssa-store-merging.c @@ -337,7 +337,7 @@ clear_bit_region (unsigned char *ptr, unsigned int start, else if (start != 0) { clear_bit_region (ptr, start, BITS_PER_UNIT - start); - clear_bit_region (ptr + 1, 0, len - (BITS_PER_UNIT - start) + 1); + clear_bit_region (ptr + 1, 0, len - (BITS_PER_UNIT - start)); } /* Whole bytes need to be cleared. */ else if (start == 0 && len > BITS_PER_UNIT) |