49 lines
1.5 KiB
Diff
49 lines
1.5 KiB
Diff
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This backport contains 1 patch from gcc main stream tree.
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The commit id of these patchs list as following in the order of time.
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dcfd302a79a5e2ea3bb16fc4fc45a5ee31cc0eab
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0001-tree-optimization-97812-fix-range-query-in-VRP-asser.patch
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diff --git a/gcc/testsuite/gcc.dg/torture/pr97812.c b/gcc/testsuite/gcc.dg/torture/pr97812.c
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new file mode 100644
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index 00000000000..4d468adf8fa
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--- /dev/null
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+++ b/gcc/testsuite/gcc.dg/torture/pr97812.c
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@@ -0,0 +1,15 @@
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+/* { dg-do run } */
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+/* { dg-additional-options "-fdisable-tree-evrp" } */
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+
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+unsigned char c;
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+
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+int main() {
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+volatile short b = 4066;
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+ unsigned short bp = b;
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+ unsigned d = bp & 2305;
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+ signed char e = d;
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+ c = e ? : e;
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+ if (!d)
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+ __builtin_abort ();
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+ return 0;
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+}
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diff --git a/gcc/tree-vrp.c b/gcc/tree-vrp.c
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index 54ce017e8b2..d661866630e 100644
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--- a/gcc/tree-vrp.c
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+++ b/gcc/tree-vrp.c
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@@ -1740,8 +1740,14 @@ register_edge_assert_for_2 (tree name, edge e,
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&& ((TYPE_PRECISION (TREE_TYPE (name))
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> TYPE_PRECISION (TREE_TYPE (rhs1)))
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|| (get_range_info (rhs1, &rmin, &rmax) == VR_RANGE
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- && wi::fits_to_tree_p (rmin, TREE_TYPE (name))
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- && wi::fits_to_tree_p (rmax, TREE_TYPE (name)))))
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+ && wi::fits_to_tree_p
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+ (widest_int::from (rmin,
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+ TYPE_SIGN (TREE_TYPE (rhs1))),
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+ TREE_TYPE (name))
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+ && wi::fits_to_tree_p
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+ (widest_int::from (rmax,
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+ TYPE_SIGN (TREE_TYPE (rhs1))),
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+ TREE_TYPE (name)))))
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add_assert_info (asserts, rhs1, rhs1,
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comp_code, fold_convert (TREE_TYPE (rhs1), val));
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}
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