mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-23 12:52:46 +00:00
f18837f195
I always suspected the overflow conversions were UB, but with gcc doing different things on arm, I thought it was about time to abandon those particular tests. What I was not expecting was for the return value of strcmp to be "UB" (in that there's no guarantee of the exact value, just < = > 0). Fortunately, nothing actually relies on the value of the op other than the tests, so modify the test to make the behavior well defined.
88 lines
2.7 KiB
C
88 lines
2.7 KiB
C
#include "head.c"
|
|
|
|
const char test_strings[] =
|
|
"\0"
|
|
"abc\0"
|
|
"def\0"
|
|
"abc\0";
|
|
|
|
static pr_int_t string_globals_init[] = {
|
|
0, 1, 5, 9, // string pointers
|
|
0, 0, 0, 0,
|
|
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
|
|
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
|
|
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
|
|
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
|
|
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
|
|
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
|
|
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
|
|
};
|
|
|
|
static pr_int_t string_globals_expect[] = {
|
|
0, 1, 5, 9, // string pointers
|
|
0, 0, 8, 0,
|
|
|
|
// "\0" "abc" "def" "abc"
|
|
-1, 0, 0, 0, 0, -1, 0, -1, 0, 0, -1, 0, 0, -1, 0, -1, // eq
|
|
0, -1, -1, -1, 0, 0, -1, 0, 0, 0, 0, 0, 0, 0, -1, 0, // lt
|
|
0, 0, 0, 0, -1, 0, 0, 0, -1, -1, 0, -1, -1, 0, 0, 0, // gt
|
|
0, -1, -1, -1, 1, 0, -1, 0, 1, 1, 0, 1, 1, 0, -1, 0, // cmp
|
|
-1, 0, 0, 0, -1, -1, 0, -1, -1, -1, -1, -1, -1, -1, 0, -1, // ge
|
|
-1, -1, -1, -1, 0, -1, -1, -1, 0, 0, -1, 0, 0, -1, -1, -1, // le
|
|
-1, -1, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // not
|
|
};
|
|
|
|
static dstatement_t string_statements[] = {
|
|
{ OP(0, 0, 0, OP_LEA_A), 24, 0, 6 }, // init k
|
|
// for (i = 4; i-- > 0; ) {
|
|
{ OP(0, 0, 0, OP_LEA_A), 4, 0, 4 },
|
|
{ OP(0, 0, 0, OP_IFA), 2, 0, 4 },
|
|
{ OP(0, 0, 0, OP_BREAK), 0, 0, 0 },
|
|
{ OP(0, 0, 0, OP_LEA_C), 4, -1, 4 }, // dec i
|
|
|
|
{ OP(0, 0, 0, OP_WITH), 4, 4, 1 }, // load i
|
|
|
|
// for (j = 4; j-- > 0; ) {
|
|
{ OP(0, 0, 0, OP_LEA_A), 4, 0, 5 }, // init j
|
|
|
|
{ OP(0, 0, 0, OP_IFA), 2, 0, 5 },
|
|
{ OP(0, 0, 0, OP_JUMP_A), -6, 0, 0 },
|
|
{ OP(0, 0, 0, OP_LEA_C), 5, -1, 5 }, // dec j
|
|
|
|
{ OP(0, 0, 0, OP_WITH), 4, 5, 2 }, // load j
|
|
|
|
{ OP(0, 0, 0, OP_LEA_C), 6, -1, 6 }, // dec k
|
|
{ OP(0, 0, 0, OP_WITH), 4, 6, 3 }, // load k
|
|
|
|
// i j k
|
|
{ OP(1, 2, 3, OP_EQ_S), 0, 0, 0 },
|
|
{ OP(1, 2, 3, OP_LT_S), 0, 0, 16 },
|
|
{ OP(1, 2, 3, OP_GT_S), 0, 0, 32 },
|
|
{ OP(1, 2, 3, OP_CMP_S), 0, 0, 48 },
|
|
{ OP(3, 0, 0, OP_LT_I_1), 48, 0, 7 }, // convert < 0, 0, > 0 to -1, 0, 1
|
|
{ OP(3, 0, 3, OP_GT_I_1), 48, 0, 48 }, // ...
|
|
{ OP(0, 3, 3, OP_SUB_I_1), 7, 48, 48 }, // ...
|
|
{ OP(1, 2, 3, OP_GE_S), 0, 0, 64 },
|
|
{ OP(1, 2, 3, OP_LE_S), 0, 0, 80 },
|
|
{ OP(1, 2, 3, OP_NOT_S), 0, 0, 96 },
|
|
|
|
// }
|
|
{ OP(0, 0, 0, OP_JUMP_A), -16, 0, 0 },
|
|
// }
|
|
};
|
|
|
|
test_t tests[] = {
|
|
{
|
|
.desc = "string",
|
|
.extra_globals = 4 * 1,
|
|
.num_globals = num_globals (string_globals_init, string_globals_expect),
|
|
.num_statements = num_statements (string_statements),
|
|
.statements = string_statements,
|
|
.init_globals = string_globals_init,
|
|
.expect_globals = string_globals_expect,
|
|
.strings = test_strings,
|
|
.string_size = sizeof (test_strings),
|
|
},
|
|
};
|
|
|
|
#include "main.c"
|