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/*
bug2947189.c
*/
#include <testfwk.h>
typedef struct {
unsigned int c : 1;
unsigned int b : 2;
unsigned int a : 3;
} TStruct;
TStruct s = {1, 2, 3};
unsigned char u = 3;
void testBug(void)
{
unsigned char a = 0;
// too small for a jumptable
switch (s.c) {
case 0: a += 3; break;
case 1: a += 2; break;
}
// bug 2947189: jumptable need not check bounds and should not generate
// warning 94: comparison is always true resp. false due to limited range of data type
switch (s.b) {
case 0: a += 3; break;
case 1: a += 2; break;
case 2: a += 1; break;
case 3: a += 0; break;
}
// bug 3069862: jumptable should not use signed comparison for bounds check
switch (s.a) {
case 0: a += 4; break;
case 1: a += 3; break;
case 2: a += 1; break;
case 3: a += 5; break;
case 4: a += 4; break;
case 5: a += 3; break;
case 6: a += 1; break;
// no case 7:
}
switch (u) {
case 0: a += 4; break;
case 1: a += 3; break;
case 2: a += 1; break;
case 3: a += 5; break;
case 4: a += 4; break;
case 5: a += 3; break;
case 6: a += 1; break;
// no case 7:
}
ASSERT (a == (2 + 1 + 5 + 5));
}
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