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213516ef | 1 | /* Copyright (C) 2008-2023 Free Software Foundation, Inc. |
edb3359d DJ |
2 | |
3 | This program is free software; you can redistribute it and/or modify | |
4 | it under the terms of the GNU General Public License as published by | |
5 | the Free Software Foundation; either version 3 of the License, or | |
6 | (at your option) any later version. | |
7 | ||
8 | This program is distributed in the hope that it will be useful, | |
9 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | GNU General Public License for more details. | |
12 | ||
13 | You should have received a copy of the GNU General Public License | |
14 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
15 | ||
5283e9e1 TT |
16 | /* This is only ever run if it is compiled with a new-enough GCC, but |
17 | we don't want the compilation to fail if compiled by some other | |
18 | compiler. */ | |
19 | #ifdef __GNUC__ | |
20 | #define ATTR __attribute__((always_inline)) | |
21 | #else | |
22 | #define ATTR | |
23 | #endif | |
24 | ||
edb3359d | 25 | int x, y; |
a48847ee | 26 | volatile int z = 0; |
edb3359d DJ |
27 | volatile int result; |
28 | volatile int *array_p; | |
29 | ||
30 | void bar(void); | |
31 | ||
f0f9e75a TV |
32 | void |
33 | init_array (int *array, int n) | |
34 | { | |
35 | int i; | |
36 | for (i = 0; i < n; ++i) | |
37 | array[i] = 0; | |
38 | } | |
39 | ||
5283e9e1 | 40 | inline ATTR int func1(int arg1) |
edb3359d DJ |
41 | { |
42 | int array[64]; | |
f0f9e75a | 43 | init_array (array, 64); |
edb3359d DJ |
44 | array_p = array; |
45 | array[0] = result; | |
46 | array[1] = arg1; | |
47 | bar (); | |
48 | return x * y + array_p[0] * arg1; | |
49 | } | |
50 | ||
5283e9e1 | 51 | inline ATTR int func2(int arg2) |
edb3359d DJ |
52 | { |
53 | return x * func1 (arg2); | |
54 | } | |
55 | ||
34dc0f95 TBA |
56 | inline ATTR |
57 | void | |
58 | scoped (int s) | |
59 | { | |
60 | int loc1 = 10; | |
61 | if (s > 0) | |
62 | { | |
63 | int loc2 = 20; | |
64 | s++; /* bp for locals 1 */ | |
65 | if (s > 1) | |
66 | { | |
67 | int loc3 = 30; | |
68 | s++; /* bp for locals 2 */ | |
69 | } | |
70 | } | |
71 | s++; /* bp for locals 3 */ | |
72 | } | |
73 | ||
edb3359d DJ |
74 | int main (void) |
75 | { | |
76 | int val; | |
77 | ||
78 | x = 7; | |
79 | y = 8; | |
80 | bar (); | |
81 | ||
82 | val = func1 (result); | |
83 | result = val; | |
84 | ||
85 | val = func2 (result); | |
86 | result = val; | |
87 | ||
34dc0f95 TBA |
88 | scoped (40); |
89 | ||
edb3359d DJ |
90 | return 0; |
91 | } |