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| author | Richard Biener <rguenther@suse.de> | 2018-08-28 10:14:45 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2018-08-28 10:14:45 +0000 |
| commit | f2b0062c10f85110e52ad7daa8bc268cdc262b86 (patch) | |
| tree | 64f03acb31750f21ead720e7b4002c33edf8d1fa | |
| parent | 7b3ca2443530663016432f3b6515e408ce35ba64 (diff) | |
| download | gcc-f2b0062c10f85110e52ad7daa8bc268cdc262b86.zip gcc-f2b0062c10f85110e52ad7daa8bc268cdc262b86.tar.gz gcc-f2b0062c10f85110e52ad7daa8bc268cdc262b86.tar.bz2 | |
re PR tree-optimization/87117 (ICE in eliminate_dom_walker::eliminate_cleanup(bool) at gcc/gcc/tree-ssa-sccvn.c:5431 since r263875)
2018-08-28 Richard Biener <rguenther@suse.de>
PR tree-optimization/87117
* tree-ssa-sccvn.c (fully_constant_vn_reference_p): Exclude
void which is is_gimple_reg_type by checking for COMPLETE_TYPE_P.
* gcc.dg/pr87117-1.c: New testcase.
From-SVN: r263911
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr87117-1.c | 21 | ||||
| -rw-r--r-- | gcc/tree-ssa-sccvn.c | 1 |
4 files changed, 33 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index dd3ca99..694fdf2 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,6 +1,12 @@ 2018-08-28 Richard Biener <rguenther@suse.de> PR tree-optimization/87117 + * tree-ssa-sccvn.c (fully_constant_vn_reference_p): Exclude + void which is is_gimple_reg_type by checking for COMPLETE_TYPE_P. + +2018-08-28 Richard Biener <rguenther@suse.de> + + PR tree-optimization/87117 * tree-ssa-pre.c (compute_avail): Do not make expressions with predicated values available. (get_expr_value_id): Assert we do not run into predicated value diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index aa6f770..bf4f5f7 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,6 +1,11 @@ 2018-08-28 Richard Biener <rguenther@suse.de> PR tree-optimization/87117 + * gcc.dg/pr87117-1.c: New testcase. + +2018-08-28 Richard Biener <rguenther@suse.de> + + PR tree-optimization/87117 * gcc.dg/pr87117-2.c: New testcase. 2018-08-28 Richard Biener <rguenther@suse.de> diff --git a/gcc/testsuite/gcc.dg/pr87117-1.c b/gcc/testsuite/gcc.dg/pr87117-1.c new file mode 100644 index 0000000..06d7008 --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr87117-1.c @@ -0,0 +1,21 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fno-inline -fno-tree-dce" } */ + +int a, b, c; +long *d; +void fn1() +{ + for (; 0 < a;) + a++; +} +void fn3() +{ + for (; c; c++) + d[c] = 0; +} +void fn2() +{ + if (b) + fn3(); + fn1(); +} diff --git a/gcc/tree-ssa-sccvn.c b/gcc/tree-ssa-sccvn.c index 4267648..381fc8d 100644 --- a/gcc/tree-ssa-sccvn.c +++ b/gcc/tree-ssa-sccvn.c @@ -1408,6 +1408,7 @@ fully_constant_vn_reference_p (vn_reference_t ref) /* Simplify reads from constants or constant initializers. */ else if (BITS_PER_UNIT == 8 + && COMPLETE_TYPE_P (ref->type) && is_gimple_reg_type (ref->type) && (!INTEGRAL_TYPE_P (ref->type) || TYPE_PRECISION (ref->type) % BITS_PER_UNIT == 0)) |