[PATCH] middle-end/114189 - drop uses of vcond{,u,eq}_optab

[Richard Biener <rguenther@suse.de>]

The following retires vcond{,u,eq} optabs by stopping to use them
from the middle-end.  Targets instead (should) implement vcond_mask
and vec_cmp{,u,eq} optabs.  The PR this change refers to lists
possibly affected targets - those implementing these patterns,
and in particular it lists mips, sparc and ia64 as targets that
most definitely will regress while others might simply remove
their vcond{,u,eq} patterns.

I'd appreciate testing, I do not expect fallout for x86 or arm/aarch64.
I know riscv doesn't implement any of the legacy optabs.  But less
maintained vector targets might need adjustments.

I want to get rid of those optabs for GCC 15.  If I don't hear from
you I will assume your target is fine.

Thanks,
Richard.

	PR middle-end/114189
	* optabs-query.h (get_vcond_icode): Always return CODE_FOR_nothing.
	(get_vcond_eq_icode): Likewise.
---
 gcc/optabs-query.h | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

diff --git a/gcc/optabs-query.h b/gcc/optabs-query.h
index 0cb2c21ba85..31fbce80175 100644
--- a/gcc/optabs-query.h
+++ b/gcc/optabs-query.h
@@ -112,14 +112,9 @@ get_vec_cmp_eq_icode (machine_mode vmode, machine_mode mask_mode)
    mode CMODE, unsigned if UNS is true, resulting in a value of mode VMODE.  */
 
 inline enum insn_code
-get_vcond_icode (machine_mode vmode, machine_mode cmode, bool uns)
+get_vcond_icode (machine_mode, machine_mode, bool)
 {
-  enum insn_code icode = CODE_FOR_nothing;
-  if (uns)
-    icode = convert_optab_handler (vcondu_optab, vmode, cmode);
-  else
-    icode = convert_optab_handler (vcond_optab, vmode, cmode);
-  return icode;
+  return CODE_FOR_nothing;
 }
 
 /* Return insn code for a conditional operator with a mask mode
@@ -135,9 +130,9 @@ get_vcond_mask_icode (machine_mode vmode, machine_mode mmode)
    mode CMODE (only EQ/NE), resulting in a value of mode VMODE.  */
 
 inline enum insn_code
-get_vcond_eq_icode (machine_mode vmode, machine_mode cmode)
+get_vcond_eq_icode (machine_mode, machine_mode)
 {
-  return convert_optab_handler (vcondeq_optab, vmode, cmode);
+  return CODE_FOR_nothing;
 }
 
 /* Enumerates the possible extraction_insn operations.  */
-- 
2.35.3