[WebAssembly] Fix type names in truncation builtins

[tlively]

Summary

Use the same convention as all the other WebAssembly builtin names.

[aheejin]

lib/CodeGen/CGBuiltin.cpp

12609

But unlike others, isn't the input type different from the output type for this builtin? It seems other non-SIMD saturate_s intrinsics follow the same convention, trunc_saturate_s_output_input.

[tlively]

lib/CodeGen/CGBuiltin.cpp

12609

Ok, I can put the return type back in. My rationale for removing it was that for the SIMD truncations, the return type is uniquely determined by the input type, so specifying both in the name is redundant.

[aheejin]

lib/CodeGen/CGBuiltin.cpp

12609

I see, but I still think it's easier to readers if they specify return types, in that they don't have to look up SIMD specs when using builtins.

[tlively]

• Restore return types in names

include/clang/Basic/BuiltinsWebAssembly.def

 BUILTIN(__builtin_wasm_min_f32x4, "V4fV4fV4f", "nc")
 BUILTIN(__builtin_wasm_max_f32x4, "V4fV4fV4f", "nc")
 BUILTIN(__builtin_wasm_min_f64x2, "V2dV2dV2d", "nc")
 BUILTIN(__builtin_wasm_max_f64x2, "V2dV2dV2d", "nc")
 
 BUILTIN(__builtin_wasm_sqrt_f32x4, "V4fV4f", "nc")
 BUILTIN(__builtin_wasm_sqrt_f64x2, "V2dV2d", "nc")
 
-BUILTIN(__builtin_wasm_trunc_saturate_s_v4i32_v4f32, "V4iV4f", "nc")
-BUILTIN(__builtin_wasm_trunc_saturate_u_v4i32_v4f32, "V4iV4f", "nc")
-BUILTIN(__builtin_wasm_trunc_saturate_s_v2i64_v2f64, "V2LLiV2d", "nc")
-BUILTIN(__builtin_wasm_trunc_saturate_u_v2i64_v2f64, "V2LLiV2d", "nc")
+BUILTIN(__builtin_wasm_trunc_saturate_s_i32x4_f32x4, "V4iV4f", "nc")
+BUILTIN(__builtin_wasm_trunc_saturate_u_i32x4_f32x4, "V4iV4f", "nc")
+BUILTIN(__builtin_wasm_trunc_saturate_s_i64x2_f64x2, "V2LLiV2d", "nc")
+BUILTIN(__builtin_wasm_trunc_saturate_u_i64x2_f64x2, "V2LLiV2d", "nc")
 
 #undef BUILTIN

lib/CodeGen/CGBuiltin.cpp

case WebAssembly::BI__builtin_wasm_atomic_notify: {
     Value *Count = EmitScalarExpr(E->getArg(1));
     Value *Callee = CGM.getIntrinsic(Intrinsic::wasm_atomic_notify);
     return Builder.CreateCall(Callee, {Addr, Count});
   }
   case WebAssembly::BI__builtin_wasm_trunc_saturate_s_i32_f32:
   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_v4i32_v4f32:
-  case WebAssembly::BI__builtin_wasm_trunc_saturate_s_v2i64_v2f64: {
+  case WebAssembly::BI__builtin_wasm_trunc_saturate_s_i32x4_f32x4:
+  case WebAssembly::BI__builtin_wasm_trunc_saturate_s_i64x2_f64x2: {
     Value *Src = EmitScalarExpr(E->getArg(0));
     llvm::Type *ResT = ConvertType(E->getType());
     Value *Callee = CGM.getIntrinsic(Intrinsic::wasm_trunc_saturate_signed,
                                      {ResT, Src->getType()});
     return Builder.CreateCall(Callee, {Src});
   }
   case WebAssembly::BI__builtin_wasm_trunc_saturate_u_i32_f32:
   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_v4i32_v4f32:
-  case WebAssembly::BI__builtin_wasm_trunc_saturate_u_v2i64_v2f64: {
+  case WebAssembly::BI__builtin_wasm_trunc_saturate_u_i32x4_f32x4:
+  case WebAssembly::BI__builtin_wasm_trunc_saturate_u_i64x2_f64x2: {
     Value *Src = EmitScalarExpr(E->getArg(0));
     llvm::Type *ResT = ConvertType(E->getType());
     Value *Callee = CGM.getIntrinsic(Intrinsic::wasm_trunc_saturate_unsigned,
                                      {ResT, Src->getType()});
     return Builder.CreateCall(Callee, {Src});
   }
   case WebAssembly::BI__builtin_wasm_min_f32:
   case WebAssembly::BI__builtin_wasm_min_f64:

test/CodeGen/builtins-wasm.c

 }
 
 f64x2 sqrt_f64x2(f64x2 x) {
   return __builtin_wasm_sqrt_f64x2(x);
   // WEBASSEMBLY: call <2 x double> @llvm.sqrt.v2f64(<2 x double> %x)
   // WEBASSEMBLY: ret
 }
 
-i32x4 trunc_saturate_s_v4i32_v4f32(f32x4 f) {
-  return __builtin_wasm_trunc_saturate_s_v4i32_v4f32(f);
+i32x4 trunc_saturate_s_i32x4_f32x4(f32x4 f) {
+  return __builtin_wasm_trunc_saturate_s_i32x4_f32x4(f);
   // WEBASSEMBLY: call <4 x i32> @llvm.wasm.trunc.saturate.signed.v4i32.v4f32(<4 x float> %f)
   // WEBASSEMBLY-NEXT: ret
 }
 
-i32x4 trunc_saturate_u_v4i32_v4f32(f32x4 f) {
-  return __builtin_wasm_trunc_saturate_u_v4i32_v4f32(f);
+i32x4 trunc_saturate_u_i32x4_f32x4(f32x4 f) {
+  return __builtin_wasm_trunc_saturate_u_i32x4_f32x4(f);
   // WEBASSEMBLY: call <4 x i32> @llvm.wasm.trunc.saturate.unsigned.v4i32.v4f32(<4 x float> %f)
   // WEBASSEMBLY-NEXT: ret
 }
 
-i64x2 trunc_saturate_s_v2i64_v2f64(f64x2 f) {
-  return __builtin_wasm_trunc_saturate_s_v2i64_v2f64(f);
+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_v2i64_v2f64(f64x2 f) {
-  return __builtin_wasm_trunc_saturate_u_v2i64_v2f64(f);
+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
 }