Update simd128.rs

Author: TDecking

crates/core_arch/src/wasm32/simd128.rs

@@ -90,10 +90,6 @@ unsafe extern "C" {
     fn llvm_narrow_i8x16_s(a: simd::i16x8, b: simd::i16x8) -> simd::i8x16;
     #[link_name = "llvm.wasm.narrow.unsigned.v16i8.v8i16"]
     fn llvm_narrow_i8x16_u(a: simd::i16x8, b: simd::i16x8) -> simd::i8x16;
-    #[link_name = "llvm.ssub.sat.v16i8"]
-    fn llvm_i8x16_sub_sat_s(a: simd::i8x16, b: simd::i8x16) -> simd::i8x16;
-    #[link_name = "llvm.usub.sat.v16i8"]
-    fn llvm_i8x16_sub_sat_u(a: simd::i8x16, b: simd::i8x16) -> simd::i8x16;
     #[link_name = "llvm.wasm.avgr.unsigned.v16i8"]
     fn llvm_avgr_u_i8x16(a: simd::i8x16, b: simd::i8x16) -> simd::i8x16;
 
@@ -111,10 +107,6 @@ unsafe extern "C" {
     fn llvm_narrow_i16x8_s(a: simd::i32x4, b: simd::i32x4) -> simd::i16x8;
     #[link_name = "llvm.wasm.narrow.unsigned.v8i16.v4i32"]
     fn llvm_narrow_i16x8_u(a: simd::i32x4, b: simd::i32x4) -> simd::i16x8;
-    #[link_name = "llvm.ssub.sat.v8i16"]
-    fn llvm_i16x8_sub_sat_s(a: simd::i16x8, b: simd::i16x8) -> simd::i16x8;
-    #[link_name = "llvm.usub.sat.v8i16"]
-    fn llvm_i16x8_sub_sat_u(a: simd::i16x8, b: simd::i16x8) -> simd::i16x8;
     #[link_name = "llvm.wasm.avgr.unsigned.v8i16"]
     fn llvm_avgr_u_i16x8(a: simd::i16x8, b: simd::i16x8) -> simd::i16x8;
 
@@ -2416,7 +2408,7 @@ pub use i8x16_sub as u8x16_sub;
 #[doc(alias("i8x16.sub_sat_s"))]
 #[stable(feature = "wasm_simd", since = "1.54.0")]
 pub fn i8x16_sub_sat(a: v128, b: v128) -> v128 {
-    unsafe { llvm_i8x16_sub_sat_s(a.as_i8x16(), b.as_i8x16()).v128() }
+    unsafe { simd_saturating_sub(a.as_i8x16(), b.as_i8x16()).v128() }
 }
 
 /// Subtracts two 128-bit vectors as if they were two packed sixteen 8-bit
@@ -2427,7 +2419,7 @@ pub fn i8x16_sub_sat(a: v128, b: v128) -> v128 {
 #[doc(alias("i8x16.sub_sat_u"))]
 #[stable(feature = "wasm_simd", since = "1.54.0")]
 pub fn u8x16_sub_sat(a: v128, b: v128) -> v128 {
-    unsafe { llvm_i8x16_sub_sat_u(a.as_i8x16(), b.as_i8x16()).v128() }
+    unsafe { simd_saturating_sub(a.as_u8x16(), b.as_u8x16()).v128() }
 }
 
 /// Compares lane-wise signed integers, and returns the minimum of
@@ -2784,7 +2776,7 @@ pub use i16x8_sub as u16x8_sub;
 #[doc(alias("i16x8.sub_sat_s"))]
 #[stable(feature = "wasm_simd", since = "1.54.0")]
 pub fn i16x8_sub_sat(a: v128, b: v128) -> v128 {
-    unsafe { llvm_i16x8_sub_sat_s(a.as_i16x8(), b.as_i16x8()).v128() }
+    unsafe { simd_saturating_sub(a.as_i16x8(), b.as_i16x8()).v128() }
 }
 
 /// Subtracts two 128-bit vectors as if they were two packed eight 16-bit
@@ -2795,7 +2787,7 @@ pub fn i16x8_sub_sat(a: v128, b: v128) -> v128 {
 #[doc(alias("i16x8.sub_sat_u"))]
 #[stable(feature = "wasm_simd", since = "1.54.0")]
 pub fn u16x8_sub_sat(a: v128, b: v128) -> v128 {
-    unsafe { llvm_i16x8_sub_sat_u(a.as_i16x8(), b.as_i16x8()).v128() }
+    unsafe { simd_saturating_sub(a.as_u16x8(), b.as_u16x8()).v128() }
 }
 
 /// Multiplies two 128-bit vectors as if they were two packed eight 16-bit