On 10/27/2016 07:23 PM, Jakub Jelinek wrote:
> Ok for trunk with that change.
>
> Jakub
Hello.
I'll commit the patch as soon as following patch would be accepted. The patch
fixes false positives when running asan-bootstrap.
Patch can bootstrap on ppc64le-redhat-linux and survives regression tests.
Ready to be installed?
Martin
>From b62e4d7ffe659ec338ef83e84ccb572a07264283 Mon Sep 17 00:00:00 2001
From: marxin <mli...@suse.cz>
Date: Tue, 20 Sep 2016 10:31:25 +0200
Subject: [PATCH 1/4] Fix ASAN bootstrap uninitialized warning.
gcc/ChangeLog:
2016-09-26 Martin Liska <mli...@suse.cz>
* ipa-devirt.c (record_targets_from_bases): Initialize a
variable.
* omp-low.c (lower_omp_target): Remove a variable from
scope defined by a switch statement.
* tree-dump.c (dequeue_and_dump): Likewise.
gcc/java/ChangeLog:
2016-09-26 Martin Liska <mli...@suse.cz>
* mangle.c (mangle_type): Remove a variable from
scope defined by a switch statement.
---
gcc/ipa-devirt.c | 2 +-
gcc/omp-low.c | 11 ++++-------
gcc/tree-dump.c | 8 +++-----
3 files changed, 8 insertions(+), 13 deletions(-)
diff --git a/gcc/ipa-devirt.c b/gcc/ipa-devirt.c
index 49e2195..5c0ae72 100644
--- a/gcc/ipa-devirt.c
+++ b/gcc/ipa-devirt.c
@@ -2862,7 +2862,7 @@ record_targets_from_bases (tree otr_type,
{
while (true)
{
- HOST_WIDE_INT pos, size;
+ HOST_WIDE_INT pos = 0, size;
tree base_binfo;
tree fld;
diff --git a/gcc/omp-low.c b/gcc/omp-low.c
index e5b9e4c..62c9e5c 100644
--- a/gcc/omp-low.c
+++ b/gcc/omp-low.c
@@ -15803,11 +15803,10 @@ lower_omp_target (gimple_stmt_iterator *gsi_p, omp_context *ctx)
push_gimplify_context ();
fplist = NULL;
+ tree var, x;
for (c = clauses; c ; c = OMP_CLAUSE_CHAIN (c))
switch (OMP_CLAUSE_CODE (c))
{
- tree var, x;
-
default:
break;
case OMP_CLAUSE_MAP:
@@ -16066,12 +16065,11 @@ lower_omp_target (gimple_stmt_iterator *gsi_p, omp_context *ctx)
vec_alloc (vkind, map_cnt);
unsigned int map_idx = 0;
+ tree ovar, nc, s, purpose, var, x, type;
+ unsigned int talign;
for (c = clauses; c ; c = OMP_CLAUSE_CHAIN (c))
switch (OMP_CLAUSE_CODE (c))
{
- tree ovar, nc, s, purpose, var, x, type;
- unsigned int talign;
-
default:
break;
@@ -16442,10 +16440,10 @@ lower_omp_target (gimple_stmt_iterator *gsi_p, omp_context *ctx)
if (offloaded || data_region)
{
tree prev = NULL_TREE;
+ tree var, x;
for (c = clauses; c ; c = OMP_CLAUSE_CHAIN (c))
switch (OMP_CLAUSE_CODE (c))
{
- tree var, x;
default:
break;
case OMP_CLAUSE_FIRSTPRIVATE:
@@ -16594,7 +16592,6 @@ lower_omp_target (gimple_stmt_iterator *gsi_p, omp_context *ctx)
for (c = clauses; c; c = OMP_CLAUSE_CHAIN (c))
switch (OMP_CLAUSE_CODE (c))
{
- tree var;
default:
break;
case OMP_CLAUSE_MAP:
diff --git a/gcc/tree-dump.c b/gcc/tree-dump.c
index df47181..89f72a0 100644
--- a/gcc/tree-dump.c
+++ b/gcc/tree-dump.c
@@ -420,8 +420,6 @@ dequeue_and_dump (dump_info_p di)
/* Now handle the various kinds of nodes. */
switch (code)
{
- int i;
-
case IDENTIFIER_NODE:
dump_string_field (di, "strg", IDENTIFIER_POINTER (t));
dump_int (di, "lngt", IDENTIFIER_LENGTH (t));
@@ -435,6 +433,7 @@ dequeue_and_dump (dump_info_p di)
case STATEMENT_LIST:
{
+ int i;
tree_stmt_iterator it;
for (i = 0, it = tsi_start (t); !tsi_end_p (it); tsi_next (&it), i++)
{
@@ -447,7 +446,7 @@ dequeue_and_dump (dump_info_p di)
case TREE_VEC:
dump_int (di, "lngt", TREE_VEC_LENGTH (t));
- for (i = 0; i < TREE_VEC_LENGTH (t); ++i)
+ for (int i = 0; i < TREE_VEC_LENGTH (t); ++i)
{
char buffer[32];
sprintf (buffer, "%u", i);
@@ -707,9 +706,8 @@ dequeue_and_dump (dump_info_p di)
break;
case OMP_CLAUSE:
{
- int i;
fprintf (di->stream, "%s\n", omp_clause_code_name[OMP_CLAUSE_CODE (t)]);
- for (i = 0; i < omp_clause_num_ops[OMP_CLAUSE_CODE (t)]; i++)
+ for (int i = 0; i < omp_clause_num_ops[OMP_CLAUSE_CODE (t)]; i++)
dump_child ("op: ", OMP_CLAUSE_OPERAND (t, i));
}
break;
--
2.10.1
