gcc/testsuite/gcc.dg/pr87600-2.c


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/* PR rtl-optimization/87600  */
/* { dg-do compile { target aarch64*-*-* arm*-*-* i?86-*-* loongarch*-*-* powerpc*-*-* s390*-*-* x86_64-*-* } } */
/* { dg-options "-O2" } */

#include "pr87600.h"

/* The following are all invalid uses of local register variables.  */

long
test0 (void)
{
  register long var1 asm (REG1);
  register long var2 asm (REG1);
  asm ("blah %0 %1" : "=r" (var1), "=r" (var2)); /* { dg-error "invalid hard register usage between output operands" } */
  return var1;
}

long
test1 (void)
{
  register long var1 asm (REG1);
  register long var2 asm (REG2);
  asm ("blah %0 %1" : "=r" (var1) : "0" (var2)); /* { dg-error "invalid hard register usage between output operand and matching constraint operand" } */
  return var1;
}