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-rw-r--r--recipes-devtools/gcc/gcc-4.5/linaro/gcc-4.5-linaro-r99388.patch191
1 files changed, 191 insertions, 0 deletions
diff --git a/recipes-devtools/gcc/gcc-4.5/linaro/gcc-4.5-linaro-r99388.patch b/recipes-devtools/gcc/gcc-4.5/linaro/gcc-4.5-linaro-r99388.patch
new file mode 100644
index 0000000000..f603fcadba
--- /dev/null
+++ b/recipes-devtools/gcc/gcc-4.5/linaro/gcc-4.5-linaro-r99388.patch
@@ -0,0 +1,191 @@
12010-09-13 Andrew Stubbs <ams@codesourcery.com>
2
3 Backport from FSF:
4
5 2010-09-13 Marcus Shawcroft <marcus.shawcroft@arm.com>
6
7 * config/arm/arm.md: (define_attr "conds"): Update comment.
8 * config/arm/sync.md (arm_sync_compare_and_swapsi): Change
9 conds attribute to clob.
10 (arm_sync_compare_and_swapsi): Likewise.
11 (arm_sync_compare_and_swap<mode>): Likewise.
12 (arm_sync_lock_test_and_setsi): Likewise.
13 (arm_sync_lock_test_and_set<mode>): Likewise.
14 (arm_sync_new_<sync_optab>si): Likewise.
15 (arm_sync_new_nandsi): Likewise.
16 (arm_sync_new_<sync_optab><mode>): Likewise.
17 (arm_sync_new_nand<mode>): Likewise.
18 (arm_sync_old_<sync_optab>si): Likewise.
19 (arm_sync_old_nandsi): Likewise.
20 (arm_sync_old_<sync_optab><mode>): Likewise.
21 (arm_sync_old_nand<mode>): Likewise.
22
23 2010-09-13 Marcus Shawcroft <marcus.shawcroft@arm.com>
24
25 * gcc.target/arm/sync-1.c: New.
26
27 2010-09-10 Andrew Stubbs <ams@codesourcery.com>
28
29 gcc/
30
31=== modified file 'gcc/config/arm/arm.md'
32--- old/gcc/config/arm/arm.md 2010-09-09 15:03:00 +0000
33+++ new/gcc/config/arm/arm.md 2010-09-13 15:39:11 +0000
34@@ -352,10 +352,11 @@
35 ; CLOB means that the condition codes are altered in an undefined manner, if
36 ; they are altered at all
37 ;
38-; UNCONDITIONAL means the instions can not be conditionally executed.
39+; UNCONDITIONAL means the instruction can not be conditionally executed and
40+; that the instruction does not use or alter the condition codes.
41 ;
42-; NOCOND means that the condition codes are neither altered nor affect the
43-; output of this insn
44+; NOCOND means that the instruction does not use or alter the condition
45+; codes but can be converted into a conditionally exectuted instruction.
46
47 (define_attr "conds" "use,set,clob,unconditional,nocond"
48 (if_then_else (eq_attr "type" "call")
49
50=== modified file 'gcc/config/arm/sync.md'
51--- old/gcc/config/arm/sync.md 2010-09-09 15:18:16 +0000
52+++ new/gcc/config/arm/sync.md 2010-09-13 15:39:11 +0000
53@@ -300,7 +300,7 @@
54 (set_attr "sync_new_value" "3")
55 (set_attr "sync_t1" "0")
56 (set_attr "sync_t2" "4")
57- (set_attr "conds" "nocond")
58+ (set_attr "conds" "clob")
59 (set_attr "predicable" "no")])
60
61 (define_insn "arm_sync_compare_and_swap<mode>"
62@@ -327,7 +327,7 @@
63 (set_attr "sync_new_value" "3")
64 (set_attr "sync_t1" "0")
65 (set_attr "sync_t2" "4")
66- (set_attr "conds" "nocond")
67+ (set_attr "conds" "clob")
68 (set_attr "predicable" "no")])
69
70 (define_insn "arm_sync_lock_test_and_setsi"
71@@ -348,7 +348,7 @@
72 (set_attr "sync_new_value" "2")
73 (set_attr "sync_t1" "0")
74 (set_attr "sync_t2" "3")
75- (set_attr "conds" "nocond")
76+ (set_attr "conds" "clob")
77 (set_attr "predicable" "no")])
78
79 (define_insn "arm_sync_lock_test_and_set<mode>"
80@@ -369,7 +369,7 @@
81 (set_attr "sync_new_value" "2")
82 (set_attr "sync_t1" "0")
83 (set_attr "sync_t2" "3")
84- (set_attr "conds" "nocond")
85+ (set_attr "conds" "clob")
86 (set_attr "predicable" "no")])
87
88 (define_insn "arm_sync_new_<sync_optab>si"
89@@ -394,7 +394,7 @@
90 (set_attr "sync_t1" "0")
91 (set_attr "sync_t2" "3")
92 (set_attr "sync_op" "<sync_optab>")
93- (set_attr "conds" "nocond")
94+ (set_attr "conds" "clob")
95 (set_attr "predicable" "no")])
96
97 (define_insn "arm_sync_new_nandsi"
98@@ -419,7 +419,7 @@
99 (set_attr "sync_t1" "0")
100 (set_attr "sync_t2" "3")
101 (set_attr "sync_op" "nand")
102- (set_attr "conds" "nocond")
103+ (set_attr "conds" "clob")
104 (set_attr "predicable" "no")])
105
106 (define_insn "arm_sync_new_<sync_optab><mode>"
107@@ -445,7 +445,7 @@
108 (set_attr "sync_t1" "0")
109 (set_attr "sync_t2" "3")
110 (set_attr "sync_op" "<sync_optab>")
111- (set_attr "conds" "nocond")
112+ (set_attr "conds" "clob")
113 (set_attr "predicable" "no")])
114
115 (define_insn "arm_sync_new_nand<mode>"
116@@ -472,7 +472,7 @@
117 (set_attr "sync_t1" "0")
118 (set_attr "sync_t2" "3")
119 (set_attr "sync_op" "nand")
120- (set_attr "conds" "nocond")
121+ (set_attr "conds" "clob")
122 (set_attr "predicable" "no")])
123
124 (define_insn "arm_sync_old_<sync_optab>si"
125@@ -498,7 +498,7 @@
126 (set_attr "sync_t1" "3")
127 (set_attr "sync_t2" "4")
128 (set_attr "sync_op" "<sync_optab>")
129- (set_attr "conds" "nocond")
130+ (set_attr "conds" "clob")
131 (set_attr "predicable" "no")])
132
133 (define_insn "arm_sync_old_nandsi"
134@@ -524,7 +524,7 @@
135 (set_attr "sync_t1" "3")
136 (set_attr "sync_t2" "4")
137 (set_attr "sync_op" "nand")
138- (set_attr "conds" "nocond")
139+ (set_attr "conds" "clob")
140 (set_attr "predicable" "no")])
141
142 (define_insn "arm_sync_old_<sync_optab><mode>"
143@@ -551,7 +551,7 @@
144 (set_attr "sync_t1" "3")
145 (set_attr "sync_t2" "4")
146 (set_attr "sync_op" "<sync_optab>")
147- (set_attr "conds" "nocond")
148+ (set_attr "conds" "clob")
149 (set_attr "predicable" "no")])
150
151 (define_insn "arm_sync_old_nand<mode>"
152@@ -578,7 +578,7 @@
153 (set_attr "sync_t1" "3")
154 (set_attr "sync_t2" "4")
155 (set_attr "sync_op" "nand")
156- (set_attr "conds" "nocond")
157+ (set_attr "conds" "clob")
158 (set_attr "predicable" "no")])
159
160 (define_insn "*memory_barrier"
161
162=== added file 'gcc/testsuite/gcc.target/arm/sync-1.c'
163--- old/gcc/testsuite/gcc.target/arm/sync-1.c 1970-01-01 00:00:00 +0000
164+++ new/gcc/testsuite/gcc.target/arm/sync-1.c 2010-09-13 15:39:11 +0000
165@@ -0,0 +1,25 @@
166+/* { dg-do run } */
167+/* { dg-options "-O2 -march=armv7-a" } */
168+
169+volatile int mem;
170+
171+int
172+bar (int x, int y)
173+{
174+ if (x)
175+ __sync_fetch_and_add(&mem, y);
176+ return 0;
177+}
178+
179+extern void abort (void);
180+
181+int
182+main (int argc, char *argv[])
183+{
184+ mem = 0;
185+ bar (0, 1);
186+ bar (1, 1);
187+ if (mem != 1)
188+ abort ();
189+ return 0;
190+}
191
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