toolchain: bump GCC 11 to 11.3.0

[openwrt/openwrt.git] / toolchain / gcc / patches / 11.2.0 / 001-v11.3.0-ranger-Fix-up-fold_using_range-range_of_address-PR10.patch

diff --git a/toolchain/gcc/patches/11.2.0/001-v11.3.0-ranger-Fix-up-fold_using_range-range_of_address-PR10.patch b/toolchain/gcc/patches/11.2.0/001-v11.3.0-ranger-Fix-up-fold_using_range-range_of_address-PR10.patch
deleted file mode 100644 (file)
index 71bbfe5..0000000
--- a/toolchain/gcc/patches/11.2.0/001-v11.3.0-ranger-Fix-up-fold_using_range-range_of_address-PR10.patch
+++ /dev/null
@@ -1,114 +0,0 @@
-From a6219e8e0719b14f474b0dcaa7bde2f4e57474f9 Mon Sep 17 00:00:00 2001
-From: Jakub Jelinek <jakub@redhat.com>
-Date: Wed, 17 Nov 2021 13:45:53 +0100
-Subject: [PATCH] ranger: Fix up fold_using_range::range_of_address [PR103255]
-
-If on &base->member the offset isn't constant or isn't zero and
--fdelete-null-pointer-checks and not -fwrapv-pointer and base has a range
-that doesn't include NULL, we return the range of the base.
-Usually it isn't a big deal, because for most pointers we just use
-varying, range_zero and range_nonzero ranges and nothing beyond that,
-but if a pointer is initialized from a constant, we actually track the
-exact range and in that case this causes miscompilation.
-As discussed on IRC, I think doing something like:
-              offset_int off2;
-              if (off_cst && off.is_constant (&off2))
-                {
-                  tree cst = wide_int_to_tree (sizetype, off2 / BITS_PER_UNIT);
-                  // adjust range r with POINTER_PLUS_EXPR cst
-                  if (!range_includes_zero_p (&r))
-                    return true;
-                }
-              // Fallback
-              r = range_nonzero (TREE_TYPE (gimple_assign_rhs1 (stmt)));
-              return true;
-could work, given that most of the pointer ranges are just the simple ones
-perhaps it is too much for little benefit.
-
-2021-11-17  Jakub Jelinek  <jakub@redhat.com>
-
-       PR tree-optimization/103255
-       * gimple-range.cc (fold_using_range::range_of_address): Return
-       range_nonzero rather than unadjusted base's range.  Formatting fixes.
-
-       * gcc.c-torture/execute/pr103255.c: New test.
-
-(cherry picked from commit c39cb6bf835ca12e590eaa6f90222e51be207c50)
----
- gcc/gimple-range.cc                           | 16 +++++---
- .../gcc.c-torture/execute/pr103255.c          | 41 +++++++++++++++++++
- 2 files changed, 52 insertions(+), 5 deletions(-)
- create mode 100644 gcc/testsuite/gcc.c-torture/execute/pr103255.c
-
---- a/gcc/gimple-range.cc
-+++ b/gcc/gimple-range.cc
-@@ -491,14 +491,20 @@ gimple_ranger::range_of_address (irange
-       }
-       /* If &X->a is equal to X, the range of X is the result.  */
-       if (off_cst && known_eq (off, 0))
--        return true;
-+      return true;
-       else if (flag_delete_null_pointer_checks
-              && !TYPE_OVERFLOW_WRAPS (TREE_TYPE (expr)))
-       {
--       /* For -fdelete-null-pointer-checks -fno-wrapv-pointer we don't
--       allow going from non-NULL pointer to NULL.  */
--         if(!range_includes_zero_p (&r))
--          return true;
-+        /* For -fdelete-null-pointer-checks -fno-wrapv-pointer we don't
-+           allow going from non-NULL pointer to NULL.  */
-+        if (!range_includes_zero_p (&r))
-+          {
-+            /* We could here instead adjust r by off >> LOG2_BITS_PER_UNIT
-+               using POINTER_PLUS_EXPR if off_cst and just fall back to
-+               this.  */
-+            r = range_nonzero (TREE_TYPE (gimple_assign_rhs1 (stmt)));
-+            return true;
-+          }
-       }
-       /* If MEM_REF has a "positive" offset, consider it non-NULL
-        always, for -fdelete-null-pointer-checks also "negative"
---- /dev/null
-+++ b/gcc/testsuite/gcc.c-torture/execute/pr103255.c
-@@ -0,0 +1,41 @@
-+/* PR tree-optimization/103255 */
-+
-+struct H
-+{
-+  unsigned a;
-+  unsigned b;
-+  unsigned c;
-+};
-+
-+#if __SIZEOF_POINTER__ >= 4
-+#define ADDR 0x400000
-+#else
-+#define ADDR 0x4000
-+#endif
-+#define OFF 0x20
-+
-+int
-+main ()
-+{
-+  struct H *h = 0;
-+  unsigned long o;
-+  volatile int t = 1;
-+
-+  for (o = OFF; o <= OFF; o += 0x1000)
-+    {
-+      struct H *u;
-+      u = (struct H *) (ADDR + o);
-+      if (t)
-+      {
-+        h = u;
-+        break;
-+      }
-+    }
-+
-+  if (h == 0)
-+    return 0;
-+  unsigned *tt = &h->b;
-+  if ((__SIZE_TYPE__) tt != (ADDR + OFF + __builtin_offsetof (struct H, b)))
-+    __builtin_abort ();
-+  return 0;
-+}