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| author | David Malcolm <dmalcolm@redhat.com> | 2023-07-20 20:24:10 -0400 |
|---|---|---|
| committer | David Malcolm <dmalcolm@redhat.com> | 2023-07-20 20:24:10 -0400 |
| commit | a4913a19d24a794c97f38d9c65c47c1fb9f2140c (patch) | |
| tree | 307cb9f994d840ae17b2098431b3a9569a50c622 | |
| parent | 7006f02bbc3f1d0b7ed7fe2122abc0896aa848d2 (diff) | |
| download | gcc-a4913a19d24a794c97f38d9c65c47c1fb9f2140c.zip gcc-a4913a19d24a794c97f38d9c65c47c1fb9f2140c.tar.gz gcc-a4913a19d24a794c97f38d9c65c47c1fb9f2140c.tar.bz2 | |
analyzer: avoid usage of TYPE_PRECISION on vector types [PR110455]
gcc/analyzer/ChangeLog:
PR analyzer/110455
* region-model.cc (region_model::get_gassign_result): Only check
for bad shift counts when dealing with an integral type.
gcc/testsuite/ChangeLog:
PR analyzer/110455
* gcc.dg/analyzer/pr110455.c: New test.
Signed-off-by: David Malcolm <dmalcolm@redhat.com>
| -rw-r--r-- | gcc/analyzer/region-model.cc | 3 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/analyzer/pr110455.c | 7 |
2 files changed, 9 insertions, 1 deletions
diff --git a/gcc/analyzer/region-model.cc b/gcc/analyzer/region-model.cc index 187013a..e01b1c8 100644 --- a/gcc/analyzer/region-model.cc +++ b/gcc/analyzer/region-model.cc @@ -860,7 +860,8 @@ region_model::get_gassign_result (const gassign *assign, or by greater than or equal to the number of bits that exist in the operand." */ if (const tree rhs2_cst = rhs2_sval->maybe_get_constant ()) - if (TREE_CODE (rhs2_cst) == INTEGER_CST) + if (TREE_CODE (rhs2_cst) == INTEGER_CST + && INTEGRAL_TYPE_P (TREE_TYPE (rhs1))) { if (tree_int_cst_sgn (rhs2_cst) < 0) ctxt->warn diff --git a/gcc/testsuite/gcc.dg/analyzer/pr110455.c b/gcc/testsuite/gcc.dg/analyzer/pr110455.c new file mode 100644 index 0000000..7f97943 --- /dev/null +++ b/gcc/testsuite/gcc.dg/analyzer/pr110455.c @@ -0,0 +1,7 @@ +int __attribute__((__vector_size__ (4))) v; + +void +foo (void) +{ + v | v << 1; +} |