[gcc r14-4566] RISC-V: Add TARGET_MIN_VLEN_OPTS to fix the build

[Kito Cheng]

https://gcc.gnu.org/g:06f36c1d83a7e8b6da47d3c5b325a963baee6aab

commit r14-4566-g06f36c1d83a7e8b6da47d3c5b325a963baee6aab
Author: Kito Cheng <kito.cheng@sifive.com>
Date:   Wed Oct 11 16:18:00 2023 -0700

    RISC-V: Add TARGET_MIN_VLEN_OPTS to fix the build
    
    gcc/ChangeLog:
    
            * config/riscv/riscv-opts.h (TARGET_MIN_VLEN_OPTS): New.

Diff:
---
 gcc/config/riscv/riscv-opts.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/gcc/config/riscv/riscv-opts.h b/gcc/config/riscv/riscv-opts.h
index e7c6b75c5ea..31ee42dea6b 100644
--- a/gcc/config/riscv/riscv-opts.h
+++ b/gcc/config/riscv/riscv-opts.h
@@ -112,6 +112,12 @@ enum riscv_entity
    ? 0 \
    : 32 << (__builtin_popcount (riscv_zvl_flags) - 1))
 
+/* Same as TARGET_MIN_VLEN, but take an OPTS as gcc_options.  */
+#define TARGET_MIN_VLEN_OPTS(opts)                                             \
+  ((opts->x_riscv_zvl_flags == 0)                                              \
+     ? 0                                                                       \
+     : 32 << (__builtin_popcount (opts->x_riscv_zvl_flags) - 1))
+
 /* We only enable VLS modes for VLA vectorization since fixed length VLMAX mode
    is the highest priority choice and should not conflict with VLS modes.  */
 #define TARGET_VECTOR_VLS                                                      \