[gcc r13-3640] Add testcases resolved with ranger as VRP1.

[gcc r13-3640] Add testcases resolved with ranger as VRP1.

[Andrew Macleod]

https://gcc.gnu.org/g:095de980339f2fe0ff2add112c4d5ab9175b8f58

commit r13-3640-g095de980339f2fe0ff2add112c4d5ab9175b8f58
Author: Andrew MacLeod <amacleod@redhat.com>
Date:   Thu Nov 3 13:07:33 2022 -0400

    Add testcases resolved with ranger as VRP1.
    
            gcc/testsuite/
            * g++.dg/pr99966.C: New.
            * gcc.dg/pr93917.c: New.
            * gcc.dg/pr102650.c: New.

Diff:
---
 gcc/testsuite/g++.dg/pr99966.C  | 23 +++++++++++++++++++++++
 gcc/testsuite/gcc.dg/pr102650.c | 20 ++++++++++++++++++++
 gcc/testsuite/gcc.dg/pr93917.c  | 20 ++++++++++++++++++++
 3 files changed, 63 insertions(+)

diff --git a/gcc/testsuite/g++.dg/pr99966.C b/gcc/testsuite/g++.dg/pr99966.C
new file mode 100644
index 00000000000..4d689822b87
--- /dev/null
+++ b/gcc/testsuite/g++.dg/pr99966.C
@@ -0,0 +1,23 @@
+// { dg-do compile }
+// { dg-require-effective-target c++17 }
+// { dg-options "-O2 -fdump-tree-vrp1" }
+
+// Test we can remove a range bound after the assert.
+
+#include <cassert>
+#include <cstdint>
+#include <cstddef>
+#include <vector>
+
+uint64_t f(std::vector<uint64_t>& data, size_t start, size_t end){
+    assert(start < end && start < data.size() && end <= data.size());
+
+
+    uint64_t total = 0;
+    for (size_t i = start; i < end; i++) {
+        total += data.at(i);
+    }
+    return total;
+}
+
+/* { dg-final { scan-tree-dump-not "throw" "vrp1"} } */
diff --git a/gcc/testsuite/gcc.dg/pr102650.c b/gcc/testsuite/gcc.dg/pr102650.c
new file mode 100644
index 00000000000..16ae840260f
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr102650.c
@@ -0,0 +1,20 @@
+/* { dg-do compile } */
+/* { dg-options "-O3 -fdump-tree-vrp1" } */
+
+static int a = 2, b, c, d;
+void foo(void);
+int main() {
+    short e;
+    int f = -1;
+    if (b)
+        c = 0;
+    c || (f = 2);
+    for (; d < 1; d++)
+        e = f + a;
+    if (!e)
+        foo();
+    return 0;
+}
+
+/* { dg-final { scan-tree-dump-not "foo" "vrp1" } } */
+
diff --git a/gcc/testsuite/gcc.dg/pr93917.c b/gcc/testsuite/gcc.dg/pr93917.c
new file mode 100644
index 00000000000..41d27fb9a8f
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr93917.c
@@ -0,0 +1,20 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-tree-vrp1" } */
+
+void f3(int n);
+
+void f1(int n)
+{
+  if(n<0)
+    __builtin_unreachable();
+  f3(n);
+}
+
+void f2(int*n)
+{
+  if(*n<0)
+    __builtin_unreachable();
+  f3 (*n);
+}
+
+/* { dg-final { scan-tree-dump-times "Global Exported" 2 "vrp1" } } */