Building with the bootstrap-O1 configuration option fails to compile a
number of files due to AFAICT false-positive warnings about uses of
uninitialized variables.
This patch adds dummy initializers to silence them all.
Regstrapped on x86_64-linux-gnu and i686-linux-gnu. OK to install?
for gcc/ChangeLog
* multiple_target.c (create_dispatcher_calls): Init e_next.
* tree-ssa-loop-split.c (split_loop): Init border.
* tree-vect-loop.c (vect_determine_vectorization_factor): Init
scalar_type.
---
gcc/multiple_target.c | 2 +-
gcc/tree-ssa-loop-split.c | 2 +-
gcc/tree-vect-loop.c | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/gcc/multiple_target.c b/gcc/multiple_target.c
index 4ead029..bb118b5 100644
--- a/gcc/multiple_target.c
+++ b/gcc/multiple_target.c
@@ -42,7 +42,7 @@ static void
create_dispatcher_calls (struct cgraph_node *node)
{
cgraph_edge *e;
- cgraph_edge *e_next;
+ cgraph_edge *e_next = NULL;
/* We need to remember NEXT_CALLER as it could be modified in the loop. */
for (e = node->callers; e ;e = (e == NULL) ? e_next : e->next_caller)
diff --git a/gcc/tree-ssa-loop-split.c b/gcc/tree-ssa-loop-split.c
index 84c0627..cb2808f 100644
--- a/gcc/tree-ssa-loop-split.c
+++ b/gcc/tree-ssa-loop-split.c
@@ -497,7 +497,7 @@ split_loop (struct loop *loop1, struct tree_niter_desc
*niter)
unsigned i;
bool changed = false;
tree guard_iv;
- tree border;
+ tree border = NULL_TREE;
affine_iv iv;
bbs = get_loop_body (loop1);
diff --git a/gcc/tree-vect-loop.c b/gcc/tree-vect-loop.c
index 6e8b89c..ced9d96 100644
--- a/gcc/tree-vect-loop.c
+++ b/gcc/tree-vect-loop.c
@@ -183,7 +183,7 @@ vect_determine_vectorization_factor (loop_vec_info
loop_vinfo)
basic_block *bbs = LOOP_VINFO_BBS (loop_vinfo);
unsigned nbbs = loop->num_nodes;
unsigned int vectorization_factor = 0;
- tree scalar_type;
+ tree scalar_type = NULL_TREE;
gphi *phi;
tree vectype;
unsigned int nunits;
--
Alexandre Oliva, freedom fighter http://FSFLA.org/~lxoliva/
You must be the change you wish to see in the world. -- Gandhi
Be Free! -- http://FSFLA.org/ FSF Latin America board member
Free Software Evangelist|Red Hat Brasil GNU Toolchain Engineer
