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authorDavid Malcolm <dmalcolm@redhat.com>2024-02-27 08:36:58 -0500
committerDavid Malcolm <dmalcolm@redhat.com>2024-02-27 08:36:58 -0500
commit43ad6ce60108acc822efcd394b75e270c1996cb5 (patch)
treeb2244128876b010e77163ff0aee3187950457710 /gcc/analyzer
parenta82ecdeacf83996321de5312522b0cc961e02a95 (diff)
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analyzer: fix ICE on floating-point bounds [PR111881]
gcc/analyzer/ChangeLog: PR analyzer/111881 * constraint-manager.cc (bound::ensure_closed): Assert that m_constant has integral type. (range::add_bound): Bail out on floating point constants. gcc/testsuite/ChangeLog: PR analyzer/111881 * c-c++-common/analyzer/conditionals-pr111881.c: New test. Signed-off-by: David Malcolm <dmalcolm@redhat.com>
Diffstat (limited to 'gcc/analyzer')
-rw-r--r--gcc/analyzer/constraint-manager.cc6
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/analyzer/constraint-manager.cc b/gcc/analyzer/constraint-manager.cc
index e8bcabe..a380b95 100644
--- a/gcc/analyzer/constraint-manager.cc
+++ b/gcc/analyzer/constraint-manager.cc
@@ -124,10 +124,12 @@ bound::ensure_closed (enum bound_kind bound_kind)
For example, convert 3 < x into 4 <= x,
and convert x < 5 into x <= 4. */
gcc_assert (CONSTANT_CLASS_P (m_constant));
+ gcc_assert (INTEGRAL_TYPE_P (TREE_TYPE (m_constant)));
m_constant = fold_build2 (bound_kind == BK_UPPER ? MINUS_EXPR : PLUS_EXPR,
TREE_TYPE (m_constant),
m_constant, integer_one_node);
gcc_assert (CONSTANT_CLASS_P (m_constant));
+ gcc_assert (INTEGRAL_TYPE_P (TREE_TYPE (m_constant)));
m_closed = true;
}
}
@@ -306,6 +308,10 @@ range::above_upper_bound (tree rhs_const) const
bool
range::add_bound (bound b, enum bound_kind bound_kind)
{
+ /* Bail out on floating point constants. */
+ if (!INTEGRAL_TYPE_P (TREE_TYPE (b.m_constant)))
+ return true;
+
b.ensure_closed (bound_kind);
switch (bound_kind)