[WebAssembly] Renumber SIMD opcodes

Summary:
As described in WebAssembly/simd#209. This is
the final reorganization of the SIMD opcode space before
standardization. It has been landed in concert with corresponding
changes in other projects in the WebAssembly SIMD ecosystem.

Reviewers: aheejin

Subscribers: dschuff, sbc100, jgravelle-google, hiraditya, sunfish, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D79224

Author: tlively

clang/include/clang/Basic/BuiltinsWebAssembly.def

@@ -153,8 +153,6 @@ TARGET_BUILTIN(__builtin_wasm_qfms_f64x2, "V2dV2dV2dV2d", "nc", "unimplemented-s
 
 TARGET_BUILTIN(__builtin_wasm_trunc_saturate_s_i32x4_f32x4, "V4iV4f", "nc", "simd128")
 TARGET_BUILTIN(__builtin_wasm_trunc_saturate_u_i32x4_f32x4, "V4iV4f", "nc", "simd128")
-TARGET_BUILTIN(__builtin_wasm_trunc_saturate_s_i64x2_f64x2, "V2LLiV2d", "nc", "unimplemented-simd128")
-TARGET_BUILTIN(__builtin_wasm_trunc_saturate_u_i64x2_f64x2, "V2LLiV2d", "nc", "unimplemented-simd128")
 
 TARGET_BUILTIN(__builtin_wasm_narrow_s_i8x16_i16x8, "V16cV8sV8s", "nc", "simd128")
 TARGET_BUILTIN(__builtin_wasm_narrow_u_i8x16_i16x8, "V16cV8sV8s", "nc", "simd128")

clang/lib/CodeGen/CGBuiltin.cpp

@@ -15876,8 +15876,7 @@ Value *CodeGenFunction::EmitWebAssemblyBuiltinExpr(unsigned BuiltinID,
   case WebAssembly::BI__builtin_wasm_trunc_saturate_s_i32_f64:
   case WebAssembly::BI__builtin_wasm_trunc_saturate_s_i64_f32:
   case WebAssembly::BI__builtin_wasm_trunc_saturate_s_i64_f64:
-  case WebAssembly::BI__builtin_wasm_trunc_saturate_s_i32x4_f32x4:
-  case WebAssembly::BI__builtin_wasm_trunc_saturate_s_i64x2_f64x2: {
+  case WebAssembly::BI__builtin_wasm_trunc_saturate_s_i32x4_f32x4: {
     Value *Src = EmitScalarExpr(E->getArg(0));
     llvm::Type *ResT = ConvertType(E->getType());
     Function *Callee = CGM.getIntrinsic(Intrinsic::wasm_trunc_saturate_signed,
@@ -15888,8 +15887,7 @@ Value *CodeGenFunction::EmitWebAssemblyBuiltinExpr(unsigned BuiltinID,
   case WebAssembly::BI__builtin_wasm_trunc_saturate_u_i32_f64:
   case WebAssembly::BI__builtin_wasm_trunc_saturate_u_i64_f32:
   case WebAssembly::BI__builtin_wasm_trunc_saturate_u_i64_f64:
-  case WebAssembly::BI__builtin_wasm_trunc_saturate_u_i32x4_f32x4:
-  case WebAssembly::BI__builtin_wasm_trunc_saturate_u_i64x2_f64x2: {
+  case WebAssembly::BI__builtin_wasm_trunc_saturate_u_i32x4_f32x4: {
     Value *Src = EmitScalarExpr(E->getArg(0));
     llvm::Type *ResT = ConvertType(E->getType());
     Function *Callee = CGM.getIntrinsic(Intrinsic::wasm_trunc_saturate_unsigned,

clang/lib/Headers/wasm_simd128.h

@@ -1007,20 +1007,6 @@ wasm_u32x4_trunc_saturate_f32x4(v128_t __a) {
   return (v128_t)__builtin_wasm_trunc_saturate_u_i32x4_f32x4((__f32x4)__a);
 }
 
-#ifdef __wasm_unimplemented_simd128__
-
-static __inline__ v128_t __DEFAULT_FN_ATTRS
-wasm_i64x2_trunc_saturate_f64x2(v128_t __a) {
-  return (v128_t)__builtin_wasm_trunc_saturate_s_i64x2_f64x2((__f64x2)__a);
-}
-
-static __inline__ v128_t __DEFAULT_FN_ATTRS
-wasm_u64x2_trunc_saturate_f64x2(v128_t __a) {
-  return (v128_t)__builtin_wasm_trunc_saturate_s_i64x2_f64x2((__f64x2)__a);
-}
-
-#endif // __wasm_unimplemented_simd128__
-
 static __inline__ v128_t __DEFAULT_FN_ATTRS
 wasm_f32x4_convert_i32x4(v128_t __a) {
   return (v128_t) __builtin_convertvector((__i32x4)__a, __f32x4);
@@ -1031,20 +1017,6 @@ wasm_f32x4_convert_u32x4(v128_t __a) {
   return (v128_t) __builtin_convertvector((__u32x4)__a, __f32x4);
 }
 
-#ifdef __wasm_unimplemented_simd128__
-
-static __inline__ v128_t __DEFAULT_FN_ATTRS
-wasm_f64x2_convert_i64x2(v128_t __a) {
-  return (v128_t) __builtin_convertvector((__i64x2)__a, __f64x2);
-}
-
-static __inline__ v128_t __DEFAULT_FN_ATTRS
-wasm_f64x2_convert_u64x2(v128_t __a) {
-  return (v128_t) __builtin_convertvector((__u64x2)__a, __f64x2);
-}
-
-#endif // __wasm_unimplemented_simd128__
-
 #define wasm_v8x16_shuffle(__a, __b, __c0, __c1, __c2, __c3, __c4, __c5, __c6, \
                            __c7, __c8, __c9, __c10, __c11, __c12, __c13,       \
                            __c14, __c15)                                       \

clang/test/CodeGen/builtins-wasm.c

@@ -645,18 +645,6 @@ i32x4 trunc_saturate_u_i32x4_f32x4(f32x4 f) {
   // WEBASSEMBLY-NEXT: ret
 }
 
-i64x2 trunc_saturate_s_i64x2_f64x2(f64x2 f) {
-  return __builtin_wasm_trunc_saturate_s_i64x2_f64x2(f);
-  // WEBASSEMBLY: call <2 x i64> @llvm.wasm.trunc.saturate.signed.v2i64.v2f64(<2 x double> %f)
-  // WEBASSEMBLY-NEXT: ret
-}
-
-i64x2 trunc_saturate_u_i64x2_f64x2(f64x2 f) {
-  return __builtin_wasm_trunc_saturate_u_i64x2_f64x2(f);
-  // WEBASSEMBLY: call <2 x i64> @llvm.wasm.trunc.saturate.unsigned.v2i64.v2f64(<2 x double> %f)
-  // WEBASSEMBLY-NEXT: ret
-}
-
 i8x16 narrow_s_i8x16_i16x8(i16x8 low, i16x8 high) {
   return __builtin_wasm_narrow_s_i8x16_i16x8(low, high);
   // WEBASSEMBLY: call <16 x i8> @llvm.wasm.narrow.signed.v16i8.v8i16(

llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp

@@ -183,11 +183,10 @@ WebAssemblyTargetLowering::WebAssemblyTargetLowering(
       setCondCodeAction(static_cast<ISD::CondCode>(CC), MVT::v2i64, Custom);
 
     // 64x2 conversions are not in the spec
-    if (!Subtarget->hasUnimplementedSIMD128())
-      for (auto Op :
-           {ISD::SINT_TO_FP, ISD::UINT_TO_FP, ISD::FP_TO_SINT, ISD::FP_TO_UINT})
-        for (auto T : {MVT::v2i64, MVT::v2f64})
-          setOperationAction(Op, T, Expand);
+    for (auto Op :
+         {ISD::SINT_TO_FP, ISD::UINT_TO_FP, ISD::FP_TO_SINT, ISD::FP_TO_UINT})
+      for (auto T : {MVT::v2i64, MVT::v2f64})
+        setOperationAction(Op, T, Expand);
   }
 
   // As a special case, these operators use the type to mean the type to