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Use explicit signed char in char_short_test

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as 'char' is unsigned on some architectures, so the tests weren't
testing what they were supposed to.
This commit is contained in:
Michael Matz 2019-12-17 04:56:54 +01:00
parent c8ca64d28b
commit 1d4d74d6d0
1 changed files with 7 additions and 7 deletions
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14
tests/tcctest.c
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@ -1216,7 +1216,7 @@ static void *_csf = __csf;
void char_short_test()
{
int var1, var2;
char var3;
signed char var3;
long long var4;
printf("char_short:\n");
@ -1224,7 +1224,7 @@ void char_short_test()
var1 = 0x01020304;
var2 = 0xfffefdfc;
printf("s8=%d %d\n",
*(char *)&var1, *(char *)&var2);
*(signed char *)&var1, *(signed char *)&var2);
printf("u8=%d %d\n",
*(unsigned char *)&var1, *(unsigned char *)&var2);
printf("s16=%d %d\n",
@ -1235,7 +1235,7 @@ void char_short_test()
*(int *)&var1, *(int *)&var2);
printf("u32=%d %d\n",
*(unsigned int *)&var1, *(unsigned int *)&var2);
*(char *)&var1 = 0x08;
*(signed char *)&var1 = 0x08;
printf("var1=%x\n", var1);
*(short *)&var1 = 0x0809;
printf("var1=%x\n", var1);
@ -1250,7 +1250,7 @@ void char_short_test()
var1 = 0x778899aa;
var4 = 0x11223344aa998877ULL;
printf("promote char/short assign VA %d %d\n", var3 = var1 + 1, var3 = var4 + 1);
printf("promote char/short cast VA %d %d\n", (char)(var1 + 1), (char)(var4 + 1));
printf("promote char/short cast VA %d %d\n", (signed char)(var1 + 1), (signed char)(var4 + 1));
#if !defined(__arm__)
/* We can't really express GCC behaviour of return type promotion in
the presence of undefined behaviour (like __csf is). */
@ -1264,14 +1264,14 @@ void char_short_test()
csf(_Bool,0x33221101));
#endif
var3 = -10;
var1 = (char)(unsigned char)(var3 + 1);
var4 = (char)(unsigned char)(var3 + 1);
var1 = (signed char)(unsigned char)(var3 + 1);
var4 = (signed char)(unsigned char)(var3 + 1);
printf("promote multicast (char)(unsigned char) %d "LONG_LONG_FORMAT"\n", var1, var4);
var4 = 0x11223344aa998877ULL;
var4 = (unsigned)(int)(var4 + 1);
printf("promote multicast (unsigned)(int) "LONG_LONG_FORMAT"\n", var4);
var4 = 0x11223344bbaa9988ULL;
var4 = (unsigned)(char)(var4 + 1);
var4 = (unsigned)(signed char)(var4 + 1);
printf("promote multicast (unsigned)(char) "LONG_LONG_FORMAT"\n", var4);
}