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authorIlya Yanok <yanok@emcraft.com>2011-07-19 03:00:55 +0200
committerRichard Purdie <richard.purdie@linuxfoundation.org>2011-07-20 15:27:35 +0100
commitb2e49a6b70dcf9f281e73d33f04e38808b71cdfb (patch)
tree3df60f635a09a479d7cbe0ca9d719ae37714c84a /meta/recipes-devtools/gcc/gcc-4.5.1
parent44f59d24d9cc3d8a15fd796d170233dc122d13b1 (diff)
downloadpoky-b2e49a6b70dcf9f281e73d33f04e38808b71cdfb.tar.gz
gcc_4.5.1: add pr44606.patch
Add fix for PR44606 as proposed in http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44606 (From OE-Core rev: 5ec03dc1f80e437d5660aa3e0c7db9b561603d49) Signed-off-by: Ilya Yanok <yanok@emcraft.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/recipes-devtools/gcc/gcc-4.5.1')
-rw-r--r--meta/recipes-devtools/gcc/gcc-4.5.1/pr44606.patch106
1 files changed, 106 insertions, 0 deletions
diff --git a/meta/recipes-devtools/gcc/gcc-4.5.1/pr44606.patch b/meta/recipes-devtools/gcc/gcc-4.5.1/pr44606.patch
new file mode 100644
index 0000000000..dd590bbe80
--- /dev/null
+++ b/meta/recipes-devtools/gcc/gcc-4.5.1/pr44606.patch
@@ -0,0 +1,106 @@
1From aff0ca6587a2f0849db55eef62a85bc8721869f2 Mon Sep 17 00:00:00 2001
2From: froydnj <froydnj@138bc75d-0d04-0410-961f-82ee72b054a4>
3Date: Tue, 1 Feb 2011 02:11:54 +0000
4Subject: [PATCH 3/6] gcc/ Backport from mainline: 2010-12-30 Nathan Froyd <froydnj@codesourcery.com>
5
6 PR target/44606
7 * reload1.c (choose_reload_regs): Don't look for equivalences for
8 output reloads of constant loads.
9
10gcc/testsuite/
11 Backport from mainline:
12 2010-12-30 Nathan Froyd <froydnj@codesourcery.com>
13
14 PR target/44606
15 * gcc.dg/pr44606.c: New test.
16
17git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_4-branch@169465 138bc75d-0d04-0410-961f-82ee72b054a4
18---
19 gcc/reload1.c | 11 --------
20 gcc/testsuite/gcc.dg/pr44606.c | 52 ++++++++++++++++++++++++++++++++++++++++
21 2 files changed, 52 insertions(+), 11 deletions(-)
22 create mode 100644 gcc/testsuite/gcc.dg/pr44606.c
23
24diff --git a/gcc/reload1.c b/gcc/reload1.c
25index 02fef2d..5732677 100644
26--- a/gcc/reload1.c
27+++ b/gcc/reload1.c
28@@ -6273,17 +6273,6 @@ choose_reload_regs (struct insn_chain *chain)
29 && (rld[r].nregs == max_group_size
30 || ! reg_classes_intersect_p (rld[r].rclass, group_class)))
31 search_equiv = rld[r].in;
32- /* If this is an output reload from a simple move insn, look
33- if an equivalence for the input is available. */
34- else if (inheritance && rld[r].in == 0 && rld[r].out != 0)
35- {
36- rtx set = single_set (insn);
37-
38- if (set
39- && rtx_equal_p (rld[r].out, SET_DEST (set))
40- && CONSTANT_P (SET_SRC (set)))
41- search_equiv = SET_SRC (set);
42- }
43
44 if (search_equiv)
45 {
46diff --git a/gcc/testsuite/gcc.dg/pr44606.c b/gcc/testsuite/gcc.dg/pr44606.c
47new file mode 100644
48index 0000000..3929775
49--- /dev/null
50+++ b/gcc/testsuite/gcc.dg/pr44606.c
51@@ -0,0 +1,52 @@
52+/* PR target/44606 */
53+/* { dg-do run } */
54+/* { dg-options "-O2" } */
55+
56+#include <stdio.h>
57+
58+extern void abort (void);
59+
60+ typedef struct _PixelPacket { unsigned char r, g, b; }
61+ PixelPacket;
62+#define ARRAYLEN(X) (sizeof(X)/sizeof(X[0]))
63+PixelPacket q[6];
64+#define COLS (ARRAYLEN(q) - 1)
65+PixelPacket p[2*COLS + 22];
66+#define Minify(POS, WEIGHT) do { \
67+ total_r += (WEIGHT)*(p[POS].r); \
68+ total_g += (WEIGHT)*(p[POS].g); \
69+ total_b += (WEIGHT)*(p[POS].b); \
70+} while (0)
71+unsigned long columns = COLS;
72+int main(void)
73+{
74+ static const unsigned char answers[COLS] = { 31, 32, 34, 35, 36 };
75+ unsigned long x;
76+ for (x = 0; x < sizeof(p)/sizeof(p[0]); x++) {
77+ p[x].b = (x + 34) | 1;
78+ }
79+ for (x = 0; x < columns; x++) {
80+ double total_r = 0, total_g = 0, total_b = 0;
81+ double saved_r = 0, saved_g = 0, saved_b = 0;
82+ Minify(2*x + 0, 3.0);
83+ Minify(2*x + 1, 7.0);
84+ Minify(2*x + 2, 7.0);
85+ saved_r = total_r;
86+ saved_g = total_g;
87+ Minify(2*x + 11, 15.0);
88+ Minify(2*x + 12, 7.0);
89+ Minify(2*x + 18, 7.0);
90+ Minify(2*x + 19, 15.0);
91+ Minify(2*x + 20, 15.0);
92+ Minify(2*x + 21, 7.0);
93+ q[x].r = (unsigned char)(total_r/128.0 + 0.5);
94+ q[x].g = (unsigned char)(total_g/128.0 + 0.5);
95+ q[x].b = (unsigned char)(total_b/128.0 + 0.5);
96+ fprintf(stderr, "r:%f g:%f b:%f\n", saved_r, saved_g, saved_b);
97+ }
98+ for (x = 0; x < COLS; x++) {
99+ if (answers[x] != q[x].b)
100+ abort();
101+ }
102+ return 0;
103+}
104--
1051.7.4
106