> From: Dipesh Sharma <[email protected]>
> Sent: Friday, July 31, 2026 6:08 PM
> diff --git a/gcc/config/i386/i386-expand.cc b/gcc/config/i386/i386-expand.cc
> index b82a4913b4e..98aab429062 100644
> --- a/gcc/config/i386/i386-expand.cc
> +++ b/gcc/config/i386/i386-expand.cc
> @@ -13452,6 +13455,29 @@ ix86_expand_args_builtin (const struct
> builtin_description *d,
> else if ((mask_pos && (nargs - i - mask_pos) == nargs_constant) ||
> (!mask_pos && (nargs - i) <= nargs_constant))
> {
> + switch (icode)
An if putting after "if(!match)" is well enough. No need for a switch. But
the current code is also ok.
> + {
> + case CODE_FOR_vunpackbv16qi_mask:
> + case CODE_FOR_vunpackbv32qi_mask:
> + case CODE_FOR_vunpackbv64qi_mask:
> + if (CONST_INT_P (op))
> + {
> + char val = INTVAL (op);
> + if ((val & 0xc0)
> + || (!(val & 0x18))
> + || ((val & 0x02) && ((val & 0x1c) != 0x08))
> + || ((val & 0x01) && (((val & 0x1c) >> 2) > 0x4)))
> + {
> + error ("the last argument must not use reserved value "
> + "immediate");
> + return const0_rtx;
> + }
> + }
> + break;
> + default:
> + break;
> + }
> +
> if (!match)
> switch (icode)
> {
> diff --git a/gcc/config/i386/sse.md b/gcc/config/i386/sse.md
> index 1625b8b18ca..cf07d7d2d37 100644
> --- a/gcc/config/i386/sse.md
> +++ b/gcc/config/i386/sse.md
> +(define_insn "*avx10v2aux_sym_truncatev4siv4qi2"
> + [(set (match_operand:V16QI 0 "register_operand" "=v")
Do you meet any issues for changing this and similar patterns
to nonimmediate_operand?
Thx,
Haochen
> + (vec_concat:V16QI
> + (unspec:V4QI
> + [(match_operand:V4SI 1 "register_operand" "v")]
> + UNSPEC_VPMOVSSDB)
> + (match_operand:V12QI 2 "const0_operand")))]
> + "TARGET_AVX10V2AUX"
> + "vpmovssdb\t{%1, %0|%0, %1}"
> + [(set_attr "type" "ssemov")
> + (set_attr "prefix" "evex")
> + (set_attr "mode" "TI")])
