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| author | Richard Sandiford <richard.sandiford@arm.com> | 2018-08-28 10:42:42 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2018-08-28 10:42:42 +0000 |
| commit | 4ec4324d0f2425ad64540d4c4d8d29f8e8077c3d (patch) | |
| tree | cb7bff7e7b49f1866987d495f95779e67716a70f | |
| parent | 463a9e0d31351d1b97f98da03cacb0b1867edad5 (diff) | |
| download | gcc-4ec4324d0f2425ad64540d4c4d8d29f8e8077c3d.zip gcc-4ec4324d0f2425ad64540d4c4d8d29f8e8077c3d.tar.gz gcc-4ec4324d0f2425ad64540d4c4d8d29f8e8077c3d.tar.bz2 | |
Fix unguarded use of tree_to_shwi in tree-ssa-sccvn.c
Fixes many testsuite failures for SVE.
2018-08-28 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* tree-ssa-sccvn.c (fully_constant_vn_reference_p): Fix unguarded
use of tree_to_shwi. Remove duplicated test for the size being
a whole number of bytes.
From-SVN: r263914
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/tree-ssa-sccvn.c | 8 |
2 files changed, 10 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index a357b4b..0e2f9d0 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2018-08-28 Richard Sandiford <richard.sandiford@arm.com> + + * tree-ssa-sccvn.c (fully_constant_vn_reference_p): Fix unguarded + use of tree_to_shwi. Remove duplicated test for the size being + a whole number of bytes. + 2018-08-28 Richard Biener <rguenther@suse.de> PR tree-optimization/87117 diff --git a/gcc/tree-ssa-sccvn.c b/gcc/tree-ssa-sccvn.c index 9277de0..39ad0c5 100644 --- a/gcc/tree-ssa-sccvn.c +++ b/gcc/tree-ssa-sccvn.c @@ -1409,16 +1409,16 @@ 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)) + && is_gimple_reg_type (ref->type)) { poly_int64 off = 0; HOST_WIDE_INT size; if (INTEGRAL_TYPE_P (ref->type)) size = TYPE_PRECISION (ref->type); - else + else if (tree_fits_shwi_p (TYPE_SIZE (ref->type))) size = tree_to_shwi (TYPE_SIZE (ref->type)); + else + return NULL_TREE; if (size % BITS_PER_UNIT != 0 || size > MAX_BITSIZE_MODE_ANY_MODE) return NULL_TREE; |