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#include <stdio.h>
#if defined(__arm__) || defined(__aarch64__) || defined (__mips__) || defined(__powerpc64__)
// Clang does not accept regparm attribute on these platforms.
// Fortunately, the default calling convention passes arguments in registers
// anyway.
#define REGPARM(N)
#else
#define REGPARM(N) __attribute__((regparm(N)))
#endif
struct bar {
int m1;
int m2;
};
void f1(int a, struct bar *b) __attribute__((noinline)) REGPARM(2);
void f1(int a, struct bar *b)
{
b->m2 = b->m1 + a; // set breakpoint here
}
void f2(struct bar *b) __attribute__((noinline)) REGPARM(1);
void f2(struct bar *b)
{
int c = b->m2;
printf("%d\n", c); // set breakpoint here
}
float f3() __attribute__((noinline));
float f3() {
return 3.14f;
}
int main()
{
struct bar myBar = { 3, 4 };
f1(2, &myBar);
f2(&myBar);
float f = f3();
printf("%f\n", f); // set breakpoint here
return 0;
}
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