File: cdx-ldstwm-1.c

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gcc-riscv64-unknown-elf 8.3.0.2019.08%2Bdfsg-1
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/* { dg-do assemble } */
/* { dg-options "-O3 -fomit-frame-pointer -funroll-all-loops -finline-functions -march=r2 -mcdx -w" } */

/* Based on gcc.c-torture/compile/920501-23.c.
   This test used to result in assembler errors with R2 CDX because of
   a bug in regrename; it wasn't re-validating insns after renaming, so
   ldwm/stwm instructions with incorrect registers were being emitted.  */

typedef unsigned char qi;
typedef unsigned short hi;
typedef unsigned long si;
typedef unsigned long long di;
subi(a){return 100-a;}
add(a,b){return a+b;}
mul(a){return 85*a;}
memshift(p)unsigned*p;{unsigned x;for(;;){x=*p++>>16;if(x)return x;}}
ldw(xp)si*xp;{return xp[4];}
ldws_m(xp)si*xp;{si x;do{x=xp[3];xp+=3;}while(x);}
postinc_si(p)si*p;{si x;for(;;){x=*p++;if(x)return x;}}
preinc_si(p)si*p;{si x;for(;;){x=*++p;if(x)return x;}}
postinc_di(p)di*p;{di x;for(;;){x=*p++;if(x)return x;}}
preinc_di(p)di*p;{di x;for(;;){x=*++p;if(x)return x;}}
inc_overlap(p,a)di*p;{do{p=*(di**)p;p=(di*)((int)p+4);}while(*p);}
di move_di(p,p2)di*p,*p2;{di x=p;p2=((di*)x)[1];return p2[1];}