[gcc r13-2016] rs6000: Simplify some code with rs6000_builtin_is_supported

[Kewen Lin <linkw@gcc.gnu.org>]

https://gcc.gnu.org/g:b22086c261f20a7576f233db3537ccf192e7160c

commit r13-2016-gb22086c261f20a7576f233db3537ccf192e7160c
Author: Kewen Lin <linkw@linux.ibm.com>
Date:   Wed Aug 10 03:50:45 2022 -0500

    rs6000: Simplify some code with rs6000_builtin_is_supported
    
    In function rs6000_init_builtins, there is a oversight that
    in one target debugging hunk with TARGET_DEBUG_BUILTIN we
    missed to handle enum bif_enable ENB_CELL.  It's easy to
    fix it by adding another if case.  But considering the long
    term maintainability, this patch updates it with the existing
    function rs6000_builtin_is_supported, which centralizes the
    related conditions for different enum bif_enable, we only
    need to update that function once some condition needs to
    be changed later.  This also simplifies another usage in
    function rs6000_expand_builtin.
    
    gcc/ChangeLog:
    
            * config/rs6000/rs6000-builtin.cc (rs6000_init_builtins): Fix the
            oversight on ENB_CELL by simplifying with rs6000_builtin_is_supported.
            (rs6000_expand_builtin): Simplify with rs6000_builtin_is_supported.

Diff:
---
 gcc/config/rs6000/rs6000-builtin.cc | 65 +++----------------------------------
 1 file changed, 4 insertions(+), 61 deletions(-)

diff --git a/gcc/config/rs6000/rs6000-builtin.cc b/gcc/config/rs6000/rs6000-builtin.cc
index 2819773d9f9..12afa86854c 100644
--- a/gcc/config/rs6000/rs6000-builtin.cc
+++ b/gcc/config/rs6000/rs6000-builtin.cc
@@ -830,44 +830,8 @@ rs6000_init_builtins (void)
       fprintf (stderr, "\nAutogenerated built-in functions:\n\n");
       for (int i = 1; i < (int) RS6000_BIF_MAX; i++)
 	{
-	  bif_enable e = rs6000_builtin_info[i].enable;
-	  if (e == ENB_P5 && !TARGET_POPCNTB)
-	    continue;
-	  if (e == ENB_P6 && !TARGET_CMPB)
-	    continue;
-	  if (e == ENB_P6_64 && !(TARGET_CMPB && TARGET_POWERPC64))
-	    continue;
-	  if (e == ENB_ALTIVEC && !TARGET_ALTIVEC)
-	    continue;
-	  if (e == ENB_VSX && !TARGET_VSX)
-	    continue;
-	  if (e == ENB_P7 && !TARGET_POPCNTD)
-	    continue;
-	  if (e == ENB_P7_64 && !(TARGET_POPCNTD && TARGET_POWERPC64))
-	    continue;
-	  if (e == ENB_P8 && !TARGET_DIRECT_MOVE)
-	    continue;
-	  if (e == ENB_P8V && !TARGET_P8_VECTOR)
-	    continue;
-	  if (e == ENB_P9 && !TARGET_MODULO)
-	    continue;
-	  if (e == ENB_P9_64 && !(TARGET_MODULO && TARGET_POWERPC64))
-	    continue;
-	  if (e == ENB_P9V && !TARGET_P9_VECTOR)
-	    continue;
-	  if (e == ENB_IEEE128_HW && !TARGET_FLOAT128_HW)
-	    continue;
-	  if (e == ENB_DFP && !TARGET_DFP)
-	    continue;
-	  if (e == ENB_CRYPTO && !TARGET_CRYPTO)
-	    continue;
-	  if (e == ENB_HTM && !TARGET_HTM)
-	    continue;
-	  if (e == ENB_P10 && !TARGET_POWER10)
-	    continue;
-	  if (e == ENB_P10_64 && !(TARGET_POWER10 && TARGET_POWERPC64))
-	    continue;
-	  if (e == ENB_MMA && !TARGET_MMA)
+	  enum rs6000_gen_builtins fn_code = (enum rs6000_gen_builtins) i;
+	  if (!rs6000_builtin_is_supported (fn_code))
 	    continue;
 	  tree fntype = rs6000_builtin_info[i].fntype;
 	  tree t = TREE_TYPE (fntype);
@@ -3370,29 +3334,8 @@ rs6000_expand_builtin (tree exp, rtx target, rtx /* subtarget */,
      but check for actual availability now, during expand time.  For
      invalid builtins, generate a normal call.  */
   bifdata *bifaddr = &rs6000_builtin_info[uns_fcode];
-  bif_enable e = bifaddr->enable;
-
-  if (!(e == ENB_ALWAYS
-	|| (e == ENB_P5 && TARGET_POPCNTB)
-	|| (e == ENB_P6 && TARGET_CMPB)
-	|| (e == ENB_P6_64 && TARGET_CMPB && TARGET_POWERPC64)
-	|| (e == ENB_ALTIVEC && TARGET_ALTIVEC)
-	|| (e == ENB_CELL && TARGET_ALTIVEC && rs6000_cpu == PROCESSOR_CELL)
-	|| (e == ENB_VSX && TARGET_VSX)
-	|| (e == ENB_P7 && TARGET_POPCNTD)
-	|| (e == ENB_P7_64 && TARGET_POPCNTD && TARGET_POWERPC64)
-	|| (e == ENB_P8 && TARGET_DIRECT_MOVE)
-	|| (e == ENB_P8V && TARGET_P8_VECTOR)
-	|| (e == ENB_P9 && TARGET_MODULO)
-	|| (e == ENB_P9_64 && TARGET_MODULO && TARGET_POWERPC64)
-	|| (e == ENB_P9V && TARGET_P9_VECTOR)
-	|| (e == ENB_IEEE128_HW && TARGET_FLOAT128_HW)
-	|| (e == ENB_DFP && TARGET_DFP)
-	|| (e == ENB_CRYPTO && TARGET_CRYPTO)
-	|| (e == ENB_HTM && TARGET_HTM)
-	|| (e == ENB_P10 && TARGET_POWER10)
-	|| (e == ENB_P10_64 && TARGET_POWER10 && TARGET_POWERPC64)
-	|| (e == ENB_MMA && TARGET_MMA)))
+
+  if (!rs6000_builtin_is_supported (fcode))
     {
       rs6000_invalid_builtin (fcode);
       return expand_call (exp, target, ignore);