* [committed] analyzer: handle vector types (PR 93350)
@ 2020-02-10 23:17 David Malcolm
0 siblings, 0 replies; only message in thread
From: David Malcolm @ 2020-02-10 23:17 UTC (permalink / raw)
To: gcc-patches; +Cc: David Malcolm
Successfully bootstrapped & regrtested on x86_64-pc-linux-gnu.
Pushed to master as r10-6567-ge87deb37649cfe480217fc83c8d56fe925600f93.
gcc/analyzer/ChangeLog:
PR analyzer/93350
* region-model.cc (region_model::get_lvalue_1):
Handle BIT_FIELD_REF.
(make_region_for_type): Handle VECTOR_TYPE.
gcc/testsuite/ChangeLog:
PR analyzer/93350
* gcc.dg/analyzer/torture/pr93350.c: New test.
---
gcc/analyzer/region-model.cc | 11 ++++++++++-
gcc/testsuite/gcc.dg/analyzer/torture/pr93350.c | 11 +++++++++++
2 files changed, 21 insertions(+), 1 deletion(-)
create mode 100644 gcc/testsuite/gcc.dg/analyzer/torture/pr93350.c
diff --git a/gcc/analyzer/region-model.cc b/gcc/analyzer/region-model.cc
index fd82360cc6e..ae810f5eb4b 100644
--- a/gcc/analyzer/region-model.cc
+++ b/gcc/analyzer/region-model.cc
@@ -4662,6 +4662,14 @@ region_model::get_lvalue_1 (path_var pv, region_model_context *ctxt)
}
break;
+ case BIT_FIELD_REF:
+ {
+ /* For now, create a view, as if a cast, ignoring the bit positions. */
+ tree obj = TREE_OPERAND (expr, 0);
+ return get_or_create_view (get_lvalue (obj, ctxt), TREE_TYPE (expr));
+ };
+ break;
+
case MEM_REF:
{
tree ptr = TREE_OPERAND (expr, 0);
@@ -6035,7 +6043,8 @@ make_region_for_type (region_id parent_rid, tree type)
if (INTEGRAL_TYPE_P (type)
|| SCALAR_FLOAT_TYPE_P (type)
|| POINTER_TYPE_P (type)
- || TREE_CODE (type) == COMPLEX_TYPE)
+ || TREE_CODE (type) == COMPLEX_TYPE
+ || TREE_CODE (type) == VECTOR_TYPE)
return new primitive_region (parent_rid, type);
if (TREE_CODE (type) == RECORD_TYPE)
diff --git a/gcc/testsuite/gcc.dg/analyzer/torture/pr93350.c b/gcc/testsuite/gcc.dg/analyzer/torture/pr93350.c
new file mode 100644
index 00000000000..1799da1936c
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/analyzer/torture/pr93350.c
@@ -0,0 +1,11 @@
+/* { dg-require-effective-target vect_int } */
+/* { dg-additional-options "-Wno-psabi" } */
+
+typedef __INT32_TYPE__ int32_t;
+typedef int32_t vnx4si __attribute__((vector_size (32)));
+
+__attribute__((noipa))
+vnx4si foo(int a, int b)
+{
+ return (vnx4si) { 1, 2, 3, 4, 5, 6, a, b };
+}
--
2.21.0
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