diff options
Diffstat (limited to 'meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0260-PR-tree-optimization-48975.patch')
-rw-r--r-- | meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0260-PR-tree-optimization-48975.patch | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0260-PR-tree-optimization-48975.patch b/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0260-PR-tree-optimization-48975.patch new file mode 100644 index 000000000..15f98a382 --- /dev/null +++ b/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0260-PR-tree-optimization-48975.patch @@ -0,0 +1,61 @@ +From 29bc62bdd8a23a670e844de980879c53a7ab493b Mon Sep 17 00:00:00 2001 +From: jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> +Date: Thu, 12 May 2011 17:46:15 +0000 +Subject: [PATCH] PR tree-optimization/48975 + * tree-if-conv.c (combine_blocks): Call free_bb_predicate + on all bbs here and free and clear ifc_bbs at the end. + + * gcc.dg/pr48975.c: New test. + + +git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_6-branch@173710 138bc75d-0d04-0410-961f-82ee72b054a4 + +index 81b52db..12ceb8e 100644 +new file mode 100644 +index 0000000..58658d8 +--- /dev/null ++++ b/gcc/testsuite/gcc.dg/pr48975.c +@@ -0,0 +1,18 @@ ++/* PR tree-optimization/48975 */ ++/* { dg-do compile } */ ++/* { dg-options "-O3 -ffast-math -fno-tree-slp-vectorize" } */ ++ ++static int ++foo (int x) ++{ ++ return (x > 0) ? 0 : x + 1; ++} ++ ++void ++bar (unsigned int x) ++{ ++ int l = 1; ++lab: ++ while (x) ++ x = foo (x); ++} +diff --git a/gcc/tree-if-conv.c b/gcc/tree-if-conv.c +index d70e232..a77186a 100644 +--- a/gcc/tree-if-conv.c ++++ b/gcc/tree-if-conv.c +@@ -1604,6 +1604,7 @@ combine_blocks (struct loop *loop) + for (i = 0; i < orig_loop_num_nodes; i++) + { + bb = ifc_bbs[i]; ++ free_bb_predicate (bb); + if (bb_with_exit_edge_p (loop, bb)) + { + exit_bb = bb; +@@ -1679,6 +1680,9 @@ combine_blocks (struct loop *loop) + && exit_bb != loop->header + && can_merge_blocks_p (loop->header, exit_bb)) + merge_blocks (loop->header, exit_bb); ++ ++ free (ifc_bbs); ++ ifc_bbs = NULL; + } + + /* If-convert LOOP when it is legal. For the moment this pass has no +-- +1.7.0.4 + |