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| author | Richard Biener <rguenther@suse.de> | 2017-11-22 08:47:47 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2017-11-22 08:47:47 +0000 |
| commit | 8f8e53262b59836866fee7e4381117fcf6dc7b38 (patch) | |
| tree | f218cf54abd1212cc2bd5811493ef7a76cb39d4d /gcc | |
| parent | ce143aa6e3d1d8dee4dad9cfd71774c5c3b9511b (diff) | |
| download | gcc-8f8e53262b59836866fee7e4381117fcf6dc7b38.zip gcc-8f8e53262b59836866fee7e4381117fcf6dc7b38.tar.gz gcc-8f8e53262b59836866fee7e4381117fcf6dc7b38.tar.bz2 | |
re PR tree-optimization/83089 (ICE: Segmentation fault (in instantiate_scev_name))
2017-11-22 Richard Biener <rguenther@suse.de>
PR tree-optimization/83089
* tree-if-conv.c (pass_if_conversion::execute): If anything
changed reset SCEV and free the number of iteration estimates.
* gcc.dg/pr83089.c: New testcase.
From-SVN: r255044
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr83089.c | 27 | ||||
| -rw-r--r-- | gcc/tree-if-conv.c | 6 |
4 files changed, 44 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 60af13a..fb8de9a 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2017-11-22 Richard Biener <rguenther@suse.de> + + PR tree-optimization/83089 + * tree-if-conv.c (pass_if_conversion::execute): If anything + changed reset SCEV and free the number of iteration estimates. + 2017-11-21 Martin Sebor <msebor@redhat.com> PR tree-optimization/82945 diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index b3e371e..e3ea2f5 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2017-11-22 Richard Biener <rguenther@suse.de> + + PR tree-optimization/83089 + * gcc.dg/pr83089.c: New testcase. + 2017-11-21 David Malcolm <dmalcolm@redhat.com> PR c/83056 diff --git a/gcc/testsuite/gcc.dg/pr83089.c b/gcc/testsuite/gcc.dg/pr83089.c new file mode 100644 index 0000000..4508948 --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr83089.c @@ -0,0 +1,27 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -ftree-loop-if-convert -ftree-parallelize-loops=2" } */ + +int rl, s8; + +void +it (int zy, short int el) +{ + int hb; + + while (el != 0) + { + hb = el; + for (rl = 0; rl < 200; ++rl) + { + for (s8 = 0; s8 < 2; ++s8) + { + } + if (s8 < 3) + zy = hb; + if (hb == 0) + ++s8; + zy += (s8 != -1); + } + el = zy; + } +} diff --git a/gcc/tree-if-conv.c b/gcc/tree-if-conv.c index c74c803..37695c2 100644 --- a/gcc/tree-if-conv.c +++ b/gcc/tree-if-conv.c @@ -2959,6 +2959,12 @@ pass_if_conversion::execute (function *fun) && !loop->dont_vectorize)) todo |= tree_if_conversion (loop); + if (todo) + { + free_numbers_of_iterations_estimates (fun); + scev_reset (); + } + if (flag_checking) { basic_block bb; |