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| author | Richard Biener <rguenther@suse.de> | 2018-08-28 13:36:49 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2018-08-28 13:36:49 +0000 |
| commit | 49aecbebe25714a59fbd18e4852c411587db1994 (patch) | |
| tree | 84021122936be9d206e666f651103adb24be9baa /gcc | |
| parent | 1312bb902382cb4891673284f43ac095e80374cf (diff) | |
| download | gcc-49aecbebe25714a59fbd18e4852c411587db1994.zip gcc-49aecbebe25714a59fbd18e4852c411587db1994.tar.gz gcc-49aecbebe25714a59fbd18e4852c411587db1994.tar.bz2 | |
re PR tree-optimization/87124 (ICE have integer_cst in SSA_VAL, at tree-ssa-sccvn.c:462 while building 541.leela_r from SPEC2017)
2018-08-28 Richard Biener <rguenther@suse.de>
PR tree-optimization/87124
* tree-ssa-sccvn.c (vn_lookup_simplify_result): Guard against
constants before looking up avail.
* g++.dg/torture/pr87124.C: New testcase.
From-SVN: r263918
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/g++.dg/torture/pr87124.C | 12 | ||||
| -rw-r--r-- | gcc/tree-ssa-sccvn.c | 2 |
4 files changed, 24 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 66396a0..20f8d0d 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2018-08-28 Richard Biener <rguenther@suse.de> + + PR tree-optimization/87124 + * tree-ssa-sccvn.c (vn_lookup_simplify_result): Guard against + constants before looking up avail. + 2018-08-28 Jakub Jelinek <jakub@redhat.com> PR middle-end/87099 diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 64638c5..c007611 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2018-08-28 Richard Biener <rguenther@suse.de> + + PR tree-optimization/87124 + * g++.dg/torture/pr87124.C: New testcase. + 2017-08-28 Paul Thomas <pault@gcc.gnu.org> PR fortran/80477 diff --git a/gcc/testsuite/g++.dg/torture/pr87124.C b/gcc/testsuite/g++.dg/torture/pr87124.C new file mode 100644 index 0000000..3e7d480 --- /dev/null +++ b/gcc/testsuite/g++.dg/torture/pr87124.C @@ -0,0 +1,12 @@ +// { dg-do compile } + +class A { + void m_fn1(); +}; + +void A::m_fn1() +{ + A *a = this; + for (int i; i && a;) + a = 0; +} diff --git a/gcc/tree-ssa-sccvn.c b/gcc/tree-ssa-sccvn.c index 39ad0c5..2556b0c 100644 --- a/gcc/tree-ssa-sccvn.c +++ b/gcc/tree-ssa-sccvn.c @@ -5667,7 +5667,7 @@ vn_lookup_simplify_result (gimple_match_op *res_op) res_op->type, ops, &vnresult); /* If this is used from expression simplification make sure to return an available expression. */ - if (res && mprts_hook && rpo_avail) + if (res && TREE_CODE (res) == SSA_NAME && mprts_hook && rpo_avail) res = rpo_avail->eliminate_avail (vn_context_bb, res); return res; } |