- fix critical 4.1/4.2 regression.

  strict aliasing incorrectly pre-loads an array element with loops.

Changed files:
    gcc-pr26587.patch -> 1.1.2.1

diff --git a/gcc-pr26587.patch b/gcc-pr26587.patch
new file mode 100644 (file)
index 0000000..a9068b8
--- /dev/null
+++ b/gcc-pr26587.patch
@@ -0,0 +1,12 @@
+--- gcc-4.1.0/gcc/tree-ssa-structalias.c.orig  2006-02-14 17:01:32.000000000 +0100
++++ gcc-4.1.0/gcc/tree-ssa-structalias.c       2006-03-07 17:11:16.637683250 +0100
+@@ -2837,7 +2837,8 @@
+   tree op0, op1;
+   struct constraint_expr base, offset;
+ 
+-  if (TREE_CODE (expr) != PLUS_EXPR)
++  if (TREE_CODE (expr) != PLUS_EXPR
++      && TREE_CODE (expr) != MINUS_EXPR)
+     return false;
+ 
+   op0 = TREE_OPERAND (expr, 0);