From a4913a19d24a794c97f38d9c65c47c1fb9f2140c Mon Sep 17 00:00:00 2001 From: David Malcolm Date: Thu, 20 Jul 2023 20:24:10 -0400 Subject: [PATCH] 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 --- gcc/analyzer/region-model.cc | 3 ++- gcc/testsuite/gcc.dg/analyzer/pr110455.c | 7 +++++++ 2 files changed, 9 insertions(+), 1 deletion(-) create mode 100644 gcc/testsuite/gcc.dg/analyzer/pr110455.c diff --git a/gcc/analyzer/region-model.cc b/gcc/analyzer/region-model.cc index 187013a37cc..e01b1c88299 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 00000000000..7f979436b79 --- /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; +}