[PATCH] D20308: [SystemZ] Fix register ordering for BinaryRRF instructions

[Zhan Jun Liau via llvm-commits]

zhanjunl added a comment.

A simple testcase is:

<test.cpp>
#include <stdio.h>
#include <cmath>

double cpsdr(double a, double b) {

  return copysign(a,b);

}

double a = 1.0;
double b = -2.0;

int main () {

  printf("ret is %lf\n", cpsdr(a, b));
  return 0;

}
</test.cpp>

The expected result is -1.0, but the return of clang is 2.0.


http://reviews.llvm.org/D20308