cc65/test/ref/spill.c

57 lines
1.2 KiB
C

/*
!!DESCRIPTION!! register spilling
!!ORIGIN!! LCC 4.1 Testsuite
!!LICENCE!! own, freely distributeable for non-profit. read CPYRIGHT.LCC
*/
#include "common.h"
#include <stdio.h>
int main(void)
{
printf("disassemble this program to check the generated code.\n");
return 0;
}
#ifdef NO_EMPTY_FUNC_ARGS
f(i){return i+i;}
f2(i){return f(i)+(i?f(i):1);}
f3(int i,int *p){
register r1=0,r2=0,r3=0,r4=0,r5=0,r6=0,r7=0,r8=0,r9=0,r10=0;
*p++=i?f(i):0;
}
#else
f(i){i=f()+f();}
f2(i){i=f()+(i?f():1);}
f3(int i,int *p){
register r1=0,r2=0,r3=0,r4=0,r5=0,r6=0,r7=0,r8=0,r9=0,r10=0;
*p++=i?f():0;
}
#endif
#ifdef NO_FLOATS
signed a[10],b[10];
#else
double a[10],b[10];
#endif
int i;
f4(){
register r6=0,r7=0,r8=0,r9=0,r10=0,r11=0;
i=a[i]+b[i] && i && a[i]-b[i];
}
/* f4 causes parent to spill child on vax when odd double regs are enabled */
int j, k, m, n;
#ifdef NO_FLOATS
signed *A, *B, x;
#else
double *A, *B, x;
#endif
f5(){
x=A[k*m]*A[j*m]+B[k*n]*B[j*n];
x=A[k*m]*B[j*n]-B[k*n]*A[j*m];
}