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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gcc.c-torture/execute/20031215-1.c | |
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Diffstat (limited to 'gcc/testsuite/gcc.c-torture/execute/20031215-1.c')
-rw-r--r-- | gcc/testsuite/gcc.c-torture/execute/20031215-1.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/execute/20031215-1.c b/gcc/testsuite/gcc.c-torture/execute/20031215-1.c new file mode 100644 index 000000000..d62177b26 --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/execute/20031215-1.c @@ -0,0 +1,38 @@ +/* PR middle-end/13400 */ +/* The following test used to fail at run-time with a write to read-only + memory, caused by if-conversion converting a conditional write into an + unconditional write. */ + +typedef struct {int c, l; char ch[3];} pstr; +const pstr ao = {2, 2, "OK"}; +const pstr * const a = &ao; + +void test1(void) +{ + if (a->ch[a->l]) { + ((char *)a->ch)[a->l] = 0; + } +} + +void test2(void) +{ + if (a->ch[a->l]) { + ((char *)a->ch)[a->l] = -1; + } +} + +void test3(void) +{ + if (a->ch[a->l]) { + ((char *)a->ch)[a->l] = 1; + } +} + +int main(void) +{ + test1(); + test2(); + test3(); + return 0; +} + |