[WebAssembly] abs and sqrt builtins

[tlively]

Summary

Depends on D52910.

include/clang/Basic/BuiltinsWebAssembly.def

 BUILTIN(__builtin_wasm_any_true_i16x8, "iV8s", "nc")
 BUILTIN(__builtin_wasm_any_true_i32x4, "iV4i", "nc")
 BUILTIN(__builtin_wasm_any_true_i64x2, "iV2LLi", "nc")
 BUILTIN(__builtin_wasm_all_true_i8x16, "iV16c", "nc")
 BUILTIN(__builtin_wasm_all_true_i16x8, "iV8s", "nc")
 BUILTIN(__builtin_wasm_all_true_i32x4, "iV4i", "nc")
 BUILTIN(__builtin_wasm_all_true_i64x2, "iV2LLi", "nc")
 
+BUILTIN(__builtin_wasm_abs_f32x4, "V4fV4f", "nc")
+BUILTIN(__builtin_wasm_abs_f64x2, "V2dV2d", "nc")
+
+BUILTIN(__builtin_wasm_sqrt_f32x4, "V4fV4f", "nc")
+BUILTIN(__builtin_wasm_sqrt_f64x2, "V2dV2d", "nc")
+
 #undef BUILTIN

lib/CodeGen/CGBuiltin.cpp

case WebAssembly::BI__builtin_wasm_all_true_i64x2:
       break;
     default:
       llvm_unreachable("unexpected builtin ID");
     }
     Value *Vec = EmitScalarExpr(E->getArg(0));
     Value *Callee = CGM.getIntrinsic(IntNo, Vec->getType());
     return Builder.CreateCall(Callee, {Vec});
   }
+  case WebAssembly::BI__builtin_wasm_abs_f32x4:
+  case WebAssembly::BI__builtin_wasm_abs_f64x2: {
+    Value *Vec = EmitScalarExpr(E->getArg(0));
+    Value *Callee = CGM.getIntrinsic(Intrinsic::fabs, Vec->getType());
+    return Builder.CreateCall(Callee, {Vec});
+  }
+  case WebAssembly::BI__builtin_wasm_sqrt_f32x4:
+  case WebAssembly::BI__builtin_wasm_sqrt_f64x2: {
+    Value *Vec = EmitScalarExpr(E->getArg(0));
+    Value *Callee = CGM.getIntrinsic(Intrinsic::sqrt, Vec->getType());
+    return Builder.CreateCall(Callee, {Vec});
+  }
 
   default:
     return nullptr;
   }
 }
 
 Value *CodeGenFunction::EmitHexagonBuiltinExpr(unsigned BuiltinID,
                                                const CallExpr *E) {

test/CodeGen/builtins-wasm.c

int f39(i32x4 x) {
   // WEBASSEMBLY: ret
 }
 
 int f40(i64x2 x) {
   return __builtin_wasm_all_true_i64x2(x);
   // WEBASSEMBLY: call i32 @llvm.wasm.alltrue.v2i64(<2 x i64> %x)
   // WEBASSEMBLY: ret
 }
+
+f32x4 f41(f32x4 x) {
+  return __builtin_wasm_abs_f32x4(x);
+  // WEBASSEMBLY: call <4 x float> @llvm.fabs.v4f32(<4 x float> %x)
+  // WEBASSEMBLY: ret
+}
+
+f64x2 f42(f64x2 x) {
+  return __builtin_wasm_abs_f64x2(x);
+  // WEBASSEMBLY: call <2 x double> @llvm.fabs.v2f64(<2 x double> %x)
+  // WEBASSEMBLY: ret
+}
+
+f32x4 f43(f32x4 x) {
+  return __builtin_wasm_sqrt_f32x4(x);
+  // WEBASSEMBLY: call <4 x float> @llvm.sqrt.v4f32(<4 x float> %x)
+  // WEBASSEMBLY: ret
+}
+
+f64x2 f44(f64x2 x) {
+  return __builtin_wasm_sqrt_f64x2(x);
+  // WEBASSEMBLY: call <2 x double> @llvm.sqrt.v2f64(<2 x double> %x)
+  // WEBASSEMBLY: ret
+}