_mm_srai_epi{16, 32}: statically assert the const generic parameter imm8 is in range

Author: lqd

crates/core_arch/src/x86/sse2.rs

@@ -597,6 +597,7 @@ pub unsafe fn _mm_sll_epi64(a: __m128i, count: __m128i) -> __m128i {
 #[rustc_legacy_const_generics(1)]
 #[stable(feature = "simd_x86", since = "1.27.0")]
 pub unsafe fn _mm_srai_epi16<const imm8: i32>(a: __m128i) -> __m128i {
+    static_assert_imm8!(imm8);
     transmute(psraiw(a.as_i16x8(), imm8))
 }
 
@@ -622,6 +623,7 @@ pub unsafe fn _mm_sra_epi16(a: __m128i, count: __m128i) -> __m128i {
 #[rustc_legacy_const_generics(1)]
 #[stable(feature = "simd_x86", since = "1.27.0")]
 pub unsafe fn _mm_srai_epi32<const imm8: i32>(a: __m128i) -> __m128i {
+    static_assert_imm8!(imm8);
     transmute(psraid(a.as_i32x4(), imm8))
 }