* tree-ssa-dom.c (tree_ssa_dominator_optimize): Reset cfg_altered.

	Free dominance info before purging EH edges as well as after.
	(eliminate_degenerate_phis): Likewise.
	(propagate_rhs_into_lhs): Set cfg_altered to true instead of 1.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@124498 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 29 insertions, 0 deletions

diff --git a/gcc/testsuite/gnat.dg/opt1.adb b/gcc/testsuite/gnat.dg/opt1.adb
new file mode 100644
index 00000000000..69bb8136d04
--- /dev/null
+++ b/gcc/testsuite/gnat.dg/opt1.adb
@@ -0,0 +1,29 @@
+-- { dg-do compile }
+-- { dg-options "-O -gnatws" }
+
+package body Opt1 is
+
+   function De_Linear_Index
+     (Index       : Natural;
+      D           : Natural;
+      Ind_Lengths : Dimention_Length)
+      return        Dimension_Indexes
+   is
+      Len     : Natural := 1;
+      Tmp_Ind : Natural := Index;
+      Tmp_Res : Natural;
+      Result  : Dimension_Indexes (1 .. D);
+   begin
+      for J in 1 .. D loop
+         Len := Len * Ind_Lengths (J);
+      end loop;
+
+      for J in Result'Range loop
+         Result (J) := Tmp_Res;
+         Tmp_Ind := Tmp_Ind - Len * (Result (J) - 1);
+      end loop;
+
+      return Result;
+   end;
+
+end Opt1;