Add support for the compiler using XXSPLTIB reg,255 to load all 1's into a
register on power9 and above instead of using VSPLTI{B,H,W} reg,-1.
gcc/testsuite/
2022-01-12 Michael Meissner <meissner@the-meissners.org>
PR testsuite/102935
* gcc.target/powerpc/pr101384-1.c: Update insn regexp for power9
and power10.
/* { dg-do compile { target le } } */
/* { dg-options "-O2 -maltivec" } */
/* { dg-require-effective-target powerpc_altivec_ok } */
-/* { dg-final { scan-assembler-times {\mvspltis[whb] [^\n\r]*,-1\M} 9 } } */
+/* { dg-final { scan-assembler-times {\mvspltis[whb] [^\n\r]*,-1\M|\mxxspltib[^\n\r]*,255\M} 9 } } */
/* { dg-final { scan-assembler-times {\mvslw\M} 3 } } */
/* { dg-final { scan-assembler-times {\mvslh\M} 3 } } */
/* { dg-final { scan-assembler-times {\mvslb\M} 3 } } */