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>
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2 changed files with 9 additions and 1 deletions
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@ -860,7 +860,8 @@ region_model::get_gassign_result (const gassign *assign,
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or by greater than or equal to the number of bits that exist in
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the operand." */
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if (const tree rhs2_cst = rhs2_sval->maybe_get_constant ())
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if (TREE_CODE (rhs2_cst) == INTEGER_CST)
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if (TREE_CODE (rhs2_cst) == INTEGER_CST
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&& INTEGRAL_TYPE_P (TREE_TYPE (rhs1)))
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{
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if (tree_int_cst_sgn (rhs2_cst) < 0)
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ctxt->warn
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7
gcc/testsuite/gcc.dg/analyzer/pr110455.c
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7
gcc/testsuite/gcc.dg/analyzer/pr110455.c
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@ -0,0 +1,7 @@
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int __attribute__((__vector_size__ (4))) v;
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void
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foo (void)
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{
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v | v << 1;
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}
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