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re-apply VLA by Thomas Preud'homme

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This commit is contained in:
Joe Soroka
2011-04-06 09:17:03 -07:00
parent 17571298f3
commit ace0f7f259
7 changed files with 173 additions and 35 deletions
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22
tests/tcctest.c
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@ -77,6 +77,7 @@ void whitespace_test(void);
void relocation_test(void);
void old_style_function(void);
void alloca_test(void);
void c99_vla_test(int size1, int size2);
void sizeof_test(void);
void typeof_test(void);
void local_label_test(void);
@ -569,6 +570,7 @@ int main(int argc, char **argv)
relocation_test();
old_style_function();
alloca_test();
c99_vla_test(5, 2);
sizeof_test();
typeof_test();
statement_expr_test();
@ -2068,6 +2070,26 @@ void alloca_test()
/* Test alloca embedded in a larger expression */
printf("alloca: %s\n", strcpy(alloca(strlen(demo)+1),demo) );
#endif
}
void c99_vla_test(int size1, int size2)
{
#if defined __i386__ || defined __x86_64__
int tab1[size1 * size2][2], tab2[10][2];
void *tab1_ptr, *tab2_ptr;
printf("Test C99 VLA 1 (sizeof): ");
printf("%s\n", (sizeof tab1 == size1 * size2 * 2 * sizeof(int)) ? "PASSED" : "FAILED");
tab1_ptr = tab1;
tab2_ptr = tab2;
printf("Test C99 VLA 2 (ptrs substract): ");
printf("%s\n", (tab2 - tab1 == (tab2_ptr - tab1_ptr) / (sizeof(int) * 2)) ? "PASSED" : "FAILED");
printf("Test C99 VLA 3 (ptr add): ");
printf("%s\n", &tab1[5][1] == (tab1_ptr + (5 * 2 + 1) * sizeof(int)) ? "PASSED" : "FAILED");
printf("Test C99 VLA 4 (ptr access): ");
tab1[size1][1] = 42;
printf("%s\n", (*((int *) (tab1_ptr + (size1 * 2 + 1) * sizeof(int))) == 42) ? "PASSED" : "FAILED");
#endif
}
void sizeof_test(void)