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Fix multidimensional arrays on stack

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This commit is contained in:
herman ten brugge 2022-03-18 07:26:07 +01:00
parent 4efcada291
commit 8a3d0a0557
2 changed files with 38 additions and 1 deletions
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4
tccgen.c
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@ -5442,7 +5442,8 @@ static int post_type(CType *type, AttributeDef *ad, int storage, int td)
} }
if (tok != ']') { if (tok != ']') {
nocode_wanted = 1; nocode_wanted = 1;
gexpr(), vpop(); gexpr();
goto check;
} }
break; break;
@ -5457,6 +5458,7 @@ static int post_type(CType *type, AttributeDef *ad, int storage, int td)
nocode_wanted = 0; nocode_wanted = 0;
gexpr(); gexpr();
} }
check:
if ((vtop->r & (VT_VALMASK | VT_LVAL | VT_SYM)) == VT_CONST) { if ((vtop->r & (VT_VALMASK | VT_LVAL | VT_SYM)) == VT_CONST) {
n = vtop->c.i; n = vtop->c.i;
if (n < 0) if (n < 0)

35
tests/tcctest.c
View file

@ -2997,10 +2997,45 @@ void c99_vla_test_2(int d, int h, int w)
free (arr); free (arr);
} }
void c99_vla_test_3a (int arr[2][3][4])
{
printf ("%d\n", arr[1][2][3]);
}
void c99_vla_test_3b(int s, int arr[s][3][4])
{
printf ("%d\n", arr[1][2][3]);
}
void c99_vla_test_3c(int s, int arr[2][s][4])
{
printf ("%d\n", arr[1][2][3]);
}
void c99_vla_test_3d(int s, int arr[2][3][s])
{
printf ("%d\n", arr[1][2][3]);
}
void c99_vla_test_3(void)
{
int a[2][3][4];
memset (a, 0, sizeof(a));
a[1][2][3] = 2;
c99_vla_test_3a(a);
c99_vla_test_3b(2, a);
#if 0 // FIXME
c99_vla_test_3c(3, a);
c99_vla_test_3d(4, a);
#endif
}
void c99_vla_test(void) void c99_vla_test(void)
{ {
c99_vla_test_1(5, 2); c99_vla_test_1(5, 2);
c99_vla_test_2(3, 4, 5); c99_vla_test_2(3, 4, 5);
c99_vla_test_3();
} }