diff options
Diffstat (limited to 'test/regression/volatile2.c')
-rw-r--r-- | test/regression/volatile2.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/test/regression/volatile2.c b/test/regression/volatile2.c new file mode 100644 index 00000000..d83927b2 --- /dev/null +++ b/test/regression/volatile2.c @@ -0,0 +1,30 @@ +/* Checking that __builtin_volatile_xxx functions are correctly compiled */ + +#include <stdio.h> + +#define TEST(msg,ty,x,v1,v2) \ + *((volatile ty *) &x) = v1; \ + printf("%s 1: %s\n", msg, *((ty *) &x) == v1 ? "OK" : "FAILED"); \ + *((ty *) &x) = v2; \ + printf("%s 2: %s\n", msg, *((volatile ty *) &x) == v2 ? "OK" : "FAILED"); + +int main(int argc, char ** argv) +{ + signed char sc; + unsigned char uc; + signed short ss; + unsigned short us; + int i; + float f; + double d; + + TEST("signed char", signed char, sc, 12, 34); + TEST("unsigned char", unsigned char, uc, 56, 78); + TEST("signed short", signed short, ss, 1234, 5678); + TEST("unsigned short", unsigned short, us, 1357, 2468); + TEST("int", int, i, 0x123456, 0x7890AB); + TEST("float", float, f, 0.5, 256.0); + TEST("double", double, d, 3.1415, 2.718); + return 0; +} + |