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
