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

   1 /* { dg-do compile } */
   2 /* { dg-options "-O3 -fdump-tree-optimized" } */
   3
   4 /* This test does not work when the truth type does not match vector type.  */
   5 /* { dg-additional-options "-msse2 -mno-avx512f" { target { i?86-*-* x86_64-*-* } } } */
   6 /* { dg-additional-options "-march=armv8-a" { target aarch64_sve } } */
   7 /* { dg-additional-options "-maltivec" { target powerpc_altivec_ok } } */
   8 /* { dg-additional-options "-mlsx" { target loongarch_sx } } */
   9 /* { dg-skip-if "no fallback for MVE" { arm_mve } } */
  10
  11 #include <stdint.h>
  12
  13 void fun1(int32_t *x, int n)
  14 {
  15     for (int i = 0; i < (n & -16); i++)
  16       x[i] = (-x[i]) >> 31;
  17 }
  18
  19 void fun2(int32_t *x, int n)
  20 {
  21     for (int i = 0; i < (n & -16); i++)
  22       x[i] = (-x[i]) >> 30;
  23 }
  24
  25 /* Xfail amdgcn where vector truth type is not integer type.  */
  26 /* { dg-final { scan-tree-dump {\s+>\s+\{ 0(, 0)+ \}} optimized { target vect_shift xfail amdgcn-*-* } } } */
  27 /* { dg-final { scan-tree-dump {\s+>\s+0} optimized { target { ! vect_shift } } } } */
  28 /* { dg-final { scan-tree-dump-not {\s+>>\s+31} optimized { xfail amdgcn-*-* } } } */