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[PATCH] Fix warnings for profiledbootstrap (PR bootstrap/77788)
- From: Martin Liška <mliska at suse dot cz>
- To: GCC Patches <gcc-patches at gcc dot gnu dot org>
- Cc: Martin Sebor <msebor at gmail dot com>, Jakub Jelinek <jakub at redhat dot com>
- Date: Tue, 4 Oct 2016 11:16:57 +0200
- Subject: [PATCH] Fix warnings for profiledbootstrap (PR bootstrap/77788)
- Authentication-results: sourceware.org; auth=none
Hello.
In the attached patch I resolve couple of warnings seen during make profiledbootstrap.
I can survive bootstrap on both ppc64le-redhat-linux and x86_64-linux-gnu targets.
Ready to be installed?
Martin
>From 510ac204f2e448d244c8eec5ab8aeab85f6041a9 Mon Sep 17 00:00:00 2001
From: marxin <mliska@suse.cz>
Date: Mon, 3 Oct 2016 23:17:05 +0200
Subject: [PATCH] Fix warnings for make profiledbootstrap (PR bootstrap/77788)
gcc/ChangeLog:
2016-10-04 Martin Liska <mliska@suse.cz>
PR bootstrap/77788
* expmed.h (mul_highpart_cost_ptr): Add an gcc_assert.
* gimple-ssa-strength-reduction.c (slsr_process_cast):
Initialize a pointer to NULL.
(slsr_process_copy): Likewise.
* input.c (location_get_source_line): Likewise.
* tree-ssa-ccp.c (optimize_atomic_bit_test_and): Likewise.
---
gcc/expmed.h | 4 +++-
gcc/gimple-ssa-strength-reduction.c | 4 ++--
gcc/input.c | 2 +-
gcc/tree-ssa-ccp.c | 2 +-
4 files changed, 7 insertions(+), 5 deletions(-)
diff --git a/gcc/expmed.h b/gcc/expmed.h
index cbceaf1..8d0af3c 100644
--- a/gcc/expmed.h
+++ b/gcc/expmed.h
@@ -618,8 +618,10 @@ static inline int *
mul_highpart_cost_ptr (bool speed, machine_mode mode)
{
gcc_assert (GET_MODE_CLASS (mode) == MODE_INT);
+ int m = mode - MIN_MODE_INT;
+ gcc_assert (m < NUM_MODE_INT);
- return &this_target_expmed->x_mul_highpart_cost[speed][mode - MIN_MODE_INT];
+ return &this_target_expmed->x_mul_highpart_cost[speed][m];
}
/* Set the COST for computing the high part of a multiplication in MODE
diff --git a/gcc/gimple-ssa-strength-reduction.c b/gcc/gimple-ssa-strength-reduction.c
index b49637f..7b14b91 100644
--- a/gcc/gimple-ssa-strength-reduction.c
+++ b/gcc/gimple-ssa-strength-reduction.c
@@ -1529,7 +1529,7 @@ static void
slsr_process_cast (gimple *gs, tree rhs1, bool speed)
{
tree lhs, ctype;
- slsr_cand_t base_cand, c, c2;
+ slsr_cand_t base_cand, c = NULL, c2;
unsigned savings = 0;
if (!legal_cast_p (gs, rhs1))
@@ -1593,7 +1593,7 @@ slsr_process_cast (gimple *gs, tree rhs1, bool speed)
static void
slsr_process_copy (gimple *gs, tree rhs1, bool speed)
{
- slsr_cand_t base_cand, c, c2;
+ slsr_cand_t base_cand, c = NULL, c2;
unsigned savings = 0;
base_cand = base_cand_from_table (rhs1);
diff --git a/gcc/input.c b/gcc/input.c
index 67f727e..6131659 100644
--- a/gcc/input.c
+++ b/gcc/input.c
@@ -713,7 +713,7 @@ const char *
location_get_source_line (const char *file_path, int line,
int *line_len)
{
- char *buffer;
+ char *buffer = NULL;
ssize_t len;
if (line == 0)
diff --git a/gcc/tree-ssa-ccp.c b/gcc/tree-ssa-ccp.c
index b6ccb59..3dc9ffa 100644
--- a/gcc/tree-ssa-ccp.c
+++ b/gcc/tree-ssa-ccp.c
@@ -2817,7 +2817,7 @@ optimize_atomic_bit_test_and (gimple_stmt_iterator *gsip,
FOR_EACH_IMM_USE_STMT (g, iter, use_lhs)
{
enum tree_code code = ERROR_MARK;
- tree op0, op1;
+ tree op0 = NULL_TREE, op1 = NULL_TREE;
if (is_gimple_debug (g))
{
has_debug_uses = true;
--
2.9.2