* [pushed] analyzer: avoid usage of TYPE_PRECISION on vector types [PR110455]
@ 2023-07-21 0:32 David Malcolm
0 siblings, 0 replies; only message in thread
From: David Malcolm @ 2023-07-21 0:32 UTC (permalink / raw)
To: gcc-patches; +Cc: David Malcolm
Successfully bootstrapped & regrtested on x86_64-pc-linux-gnu.
Pushed to trunk as r14-2690-ga4913a19d24a79.
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.
---
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;
+}
--
2.26.3
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2023-07-21 0:32 [pushed] analyzer: avoid usage of TYPE_PRECISION on vector types [PR110455] David Malcolm
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