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test for issue #170

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mrdudz 2020-07-09 16:17:16 +02:00
parent 5925a7f8ee
commit ff18218b0a
1 changed files with 40 additions and 0 deletions
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test/todo/bug170.c Normal file
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/* bug #170 - Wrong implicit conversion of integers */
#include <stdlib.h>
#include <stdio.h>
#include <stdint.h>
int main(void)
{
uint8_t c = 2;
uint32_t u = 2;
int16_t a = -2;
int32_t l = -2;
/* Generated code should use tosmulax but uses tosumulax */
int16_t r = c * a;
/* Generated code should use tosmuleax but uses tosumuleax */
int32_t lr = u * l;
int32_t n = -95;
uint16_t d = 3;
int16_t r1 = n / d; // produces 21813 instead of -31
int16_t r2 = n / (int32_t) d; // workaround
printf("r: %d (-4)\n", r);
#ifdef REFERENCE
printf("lr: %d (-4)\n", lr);
#else
printf("lr: %ld (-4)\n", lr);
#endif
printf("r1: %d (-31)\n", r1);
printf("r2: %d (-31)\n", r2);
if (r != -4) { return EXIT_FAILURE; }
if (lr != -4) { return EXIT_FAILURE; }
if (r1 != -31) { return EXIT_FAILURE; }
if (r2 != -31) { return EXIT_FAILURE; }
return EXIT_SUCCESS;
}