1From 7cc702c7b5a1ccc2b0091f3effa1391b6c3030fd Mon Sep 17 00:00:00 2001
2From: Hongxu Jia <hongxu.jia@windriver.com>
3Date: Wed, 16 Aug 2017 10:46:28 +0800
4Subject: [PATCH 3/4] tests/bench-slope.c: workaround ICE failure on mips with
5 '-O -g'
6
7Hit a ICE and could reduce it to the following minimal example:
8
91. Only the size of array assigned with 2 caused the issue:
10$ cat > mipgcc-test.c << END
11
12int main (int argc, char **argv)
13{
14        char *pStrArry[ARRAY_SIZE_MAX] = {"hello"};
15        int i = 0;
16
17        while(pStrArry[i] && i<ARRAY_SIZE_MAX)
18        {
19                printf("%s\n", pStrArry[i]);
20                i++;
21        }
22
23        return 0;
24}
25
26END
27
282. Only -O1 and -g on mips caused the issue:
29$ mips-poky-linux-gcc -O1 -g -o mipgcc-test mipgcc-test.c
30mipgcc-test.c: In function 'main':
31mipgcc-test.c:18:1: internal compiler error: in dwarf2out_var_location,
32at dwarf2out.c:20810
33 }
34 ^
35Please submit a full bug report,
36with preprocessed source if appropriate.
37See <http://gcc.gnu.org/bugs.html> for instructions
38
393. The quick workround is trying to enlarge the size of array with
40larger
41than 2.
42
434. File a bug to GNU, but it could not be reproduced on there
44environment.
45http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60643
46
47Upstream-Status: Inappropriate [oe specific]
48
49Rebase to 1.8.0
50Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
51---
52 tests/bench-slope.c | 4 ++--
53 1 file changed, 2 insertions(+), 2 deletions(-)
54
55diff --git a/tests/bench-slope.c b/tests/bench-slope.c
56index 75e6e43..4e70842 100644
57--- a/tests/bench-slope.c
58+++ b/tests/bench-slope.c
59@@ -1463,7 +1463,7 @@ static struct bench_ops hash_ops = {
60 };
61
62
63-static struct bench_hash_mode hash_modes[] = {
64+static struct bench_hash_mode hash_modes[3] = {
65   {"", &hash_ops},
66   {0},
67 };
68@@ -1629,7 +1629,7 @@ static struct bench_ops mac_ops = {
69 };
70
71
72-static struct bench_mac_mode mac_modes[] = {
73+static struct bench_mac_mode mac_modes[3] = {
74   {"", &mac_ops},
75   {0},
76 };
77--
781.8.3.1
79
80