1 files changed, 0 insertions, 900 deletions

diff --git a/contrib/llvm/lib/Target/WebAssembly/WebAssemblyRuntimeLibcallSignatures.cpp b/contrib/llvm/lib/Target/WebAssembly/WebAssemblyRuntimeLibcallSignatures.cpp
deleted file mode 100644
index 7b9ae90326f0..000000000000
--- a/contrib/llvm/lib/Target/WebAssembly/WebAssemblyRuntimeLibcallSignatures.cpp
+++ /dev/null
@@ -1,900 +0,0 @@
-// CodeGen/RuntimeLibcallSignatures.cpp - R.T. Lib. Call Signatures -*- C++ -*--
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-///
-/// \file
-/// This file contains signature information for runtime libcalls.
-///
-/// CodeGen uses external symbols, which it refers to by name. The WebAssembly
-/// target needs type information for all functions. This file contains a big
-/// table providing type signatures for all runtime library functions that LLVM
-/// uses.
-///
-/// This is currently a fairly heavy-handed solution.
-///
-//===----------------------------------------------------------------------===//
-
-#include "WebAssemblyRuntimeLibcallSignatures.h"
-#include "WebAssemblySubtarget.h"
-#include "llvm/CodeGen/RuntimeLibcalls.h"
-#include "llvm/Support/ManagedStatic.h"
-
-using namespace llvm;
-
-namespace {
-
-enum RuntimeLibcallSignature {
-  func,
-  f32_func_f32,
-  f32_func_f64,
-  f32_func_i32,
-  f32_func_i64,
-  f32_func_i16,
-  f64_func_f32,
-  f64_func_f64,
-  f64_func_i32,
-  f64_func_i64,
-  i32_func_f32,
-  i32_func_f64,
-  i32_func_i32,
-  i64_func_f32,
-  i64_func_f64,
-  i64_func_i64,
-  f32_func_f32_f32,
-  f32_func_f32_i32,
-  f32_func_i64_i64,
-  f64_func_f64_f64,
-  f64_func_f64_i32,
-  f64_func_i64_i64,
-  i16_func_f32,
-  i16_func_f64,
-  i16_func_i64_i64,
-  i8_func_i8_i8,
-  func_f32_iPTR_iPTR,
-  func_f64_iPTR_iPTR,
-  i16_func_i16_i16,
-  i32_func_f32_f32,
-  i32_func_f64_f64,
-  i32_func_i32_i32,
-  i32_func_i32_i32_iPTR,
-  i64_func_i64_i64,
-  i64_func_i64_i64_iPTR,
-  i64_i64_func_f32,
-  i64_i64_func_f64,
-  i16_i16_func_i16_i16,
-  i32_i32_func_i32_i32,
-  i64_i64_func_i64_i64,
-  i64_i64_func_i64_i64_i64_i64,
-  i64_i64_func_i64_i64_i64_i64_iPTR,
-  i64_i64_i64_i64_func_i64_i64_i64_i64,
-  i64_i64_func_i64_i64_i32,
-  iPTR_func_iPTR_i32_iPTR,
-  iPTR_func_iPTR_iPTR_iPTR,
-  f32_func_f32_f32_f32,
-  f64_func_f64_f64_f64,
-  func_i64_i64_iPTR_iPTR,
-  func_iPTR_f32,
-  func_iPTR_f64,
-  func_iPTR_i32,
-  func_iPTR_i64,
-  func_iPTR_i64_i64,
-  func_iPTR_i64_i64_i64_i64,
-  func_iPTR_i64_i64_i64_i64_i64_i64,
-  i32_func_i64_i64,
-  i32_func_i64_i64_i64_i64,
-  iPTR_func_f32,
-  iPTR_func_f64,
-  iPTR_func_i64_i64,
-  unsupported
-};
-
-struct RuntimeLibcallSignatureTable {
-  std::vector<RuntimeLibcallSignature> Table;
-
-  // Any newly-added libcalls will be unsupported by default.
-  RuntimeLibcallSignatureTable() : Table(RTLIB::UNKNOWN_LIBCALL, unsupported) {
-    // Integer
-    Table[RTLIB::SHL_I16] = i16_func_i16_i16;
-    Table[RTLIB::SHL_I32] = i32_func_i32_i32;
-    Table[RTLIB::SHL_I64] = i64_func_i64_i64;
-    Table[RTLIB::SHL_I128] = i64_i64_func_i64_i64_i32;
-    Table[RTLIB::SRL_I16] = i16_func_i16_i16;
-    Table[RTLIB::SRL_I32] = i32_func_i32_i32;
-    Table[RTLIB::SRL_I64] = i64_func_i64_i64;
-    Table[RTLIB::SRL_I128] = i64_i64_func_i64_i64_i32;
-    Table[RTLIB::SRA_I16] = i16_func_i16_i16;
-    Table[RTLIB::SRA_I32] = i32_func_i32_i32;
-    Table[RTLIB::SRA_I64] = i64_func_i64_i64;
-    Table[RTLIB::SRA_I128] = i64_i64_func_i64_i64_i32;
-    Table[RTLIB::MUL_I8] = i8_func_i8_i8;
-    Table[RTLIB::MUL_I16] = i16_func_i16_i16;
-    Table[RTLIB::MUL_I32] = i32_func_i32_i32;
-    Table[RTLIB::MUL_I64] = i64_func_i64_i64;
-    Table[RTLIB::MUL_I128] = i64_i64_func_i64_i64_i64_i64;
-    Table[RTLIB::MULO_I32] = i32_func_i32_i32_iPTR;
-    Table[RTLIB::MULO_I64] = i64_func_i64_i64_iPTR;
-    Table[RTLIB::MULO_I128] = i64_i64_func_i64_i64_i64_i64_iPTR;
-    Table[RTLIB::SDIV_I8] = i8_func_i8_i8;
-    Table[RTLIB::SDIV_I16] = i16_func_i16_i16;
-    Table[RTLIB::SDIV_I32] = i32_func_i32_i32;
-    Table[RTLIB::SDIV_I64] = i64_func_i64_i64;
-    Table[RTLIB::SDIV_I128] = i64_i64_func_i64_i64_i64_i64;
-    Table[RTLIB::UDIV_I8] = i8_func_i8_i8;
-    Table[RTLIB::UDIV_I16] = i16_func_i16_i16;
-    Table[RTLIB::UDIV_I32] = i32_func_i32_i32;
-    Table[RTLIB::UDIV_I64] = i64_func_i64_i64;
-    Table[RTLIB::UDIV_I128] = i64_i64_func_i64_i64_i64_i64;
-    Table[RTLIB::SREM_I8] = i8_func_i8_i8;
-    Table[RTLIB::SREM_I16] = i16_func_i16_i16;
-    Table[RTLIB::SREM_I32] = i32_func_i32_i32;
-    Table[RTLIB::SREM_I64] = i64_func_i64_i64;
-    Table[RTLIB::SREM_I128] = i64_i64_func_i64_i64_i64_i64;
-    Table[RTLIB::UREM_I8] = i8_func_i8_i8;
-    Table[RTLIB::UREM_I16] = i16_func_i16_i16;
-    Table[RTLIB::UREM_I32] = i32_func_i32_i32;
-    Table[RTLIB::UREM_I64] = i64_func_i64_i64;
-    Table[RTLIB::UREM_I128] = i64_i64_func_i64_i64_i64_i64;
-    Table[RTLIB::SDIVREM_I8] = i8_func_i8_i8;
-    Table[RTLIB::SDIVREM_I16] = i16_i16_func_i16_i16;
-    Table[RTLIB::SDIVREM_I32] = i32_i32_func_i32_i32;
-    Table[RTLIB::SDIVREM_I64] = i64_func_i64_i64;
-    Table[RTLIB::SDIVREM_I128] = i64_i64_i64_i64_func_i64_i64_i64_i64;
-    Table[RTLIB::UDIVREM_I8] = i8_func_i8_i8;
-    Table[RTLIB::UDIVREM_I16] = i16_i16_func_i16_i16;
-    Table[RTLIB::UDIVREM_I32] = i32_i32_func_i32_i32;
-    Table[RTLIB::UDIVREM_I64] = i64_i64_func_i64_i64;
-    Table[RTLIB::UDIVREM_I128] = i64_i64_i64_i64_func_i64_i64_i64_i64;
-    Table[RTLIB::NEG_I32] = i32_func_i32;
-    Table[RTLIB::NEG_I64] = i64_func_i64;
-
-    // Floating-point.
-    // All F80 and PPCF128 routines are unsupported.
-    Table[RTLIB::ADD_F32] = f32_func_f32_f32;
-    Table[RTLIB::ADD_F64] = f64_func_f64_f64;
-    Table[RTLIB::ADD_F128] = func_iPTR_i64_i64_i64_i64;
-    Table[RTLIB::SUB_F32] = f32_func_f32_f32;
-    Table[RTLIB::SUB_F64] = f64_func_f64_f64;
-    Table[RTLIB::SUB_F128] = func_iPTR_i64_i64_i64_i64;
-    Table[RTLIB::MUL_F32] = f32_func_f32_f32;
-    Table[RTLIB::MUL_F64] = f64_func_f64_f64;
-    Table[RTLIB::MUL_F128] = func_iPTR_i64_i64_i64_i64;
-    Table[RTLIB::DIV_F32] = f32_func_f32_f32;
-    Table[RTLIB::DIV_F64] = f64_func_f64_f64;
-    Table[RTLIB::DIV_F128] = func_iPTR_i64_i64_i64_i64;
-    Table[RTLIB::REM_F32] = f32_func_f32_f32;
-    Table[RTLIB::REM_F64] = f64_func_f64_f64;
-    Table[RTLIB::REM_F128] = func_iPTR_i64_i64_i64_i64;
-    Table[RTLIB::FMA_F32] = f32_func_f32_f32_f32;
-    Table[RTLIB::FMA_F64] = f64_func_f64_f64_f64;
-    Table[RTLIB::FMA_F128] = func_iPTR_i64_i64_i64_i64_i64_i64;
-    Table[RTLIB::POWI_F32] = f32_func_f32_i32;
-    Table[RTLIB::POWI_F64] = f64_func_f64_i32;
-    Table[RTLIB::POWI_F128] = func_iPTR_i64_i64_i64_i64;
-    Table[RTLIB::SQRT_F32] = f32_func_f32;
-    Table[RTLIB::SQRT_F64] = f64_func_f64;
-    Table[RTLIB::SQRT_F128] = func_iPTR_i64_i64;
-    Table[RTLIB::LOG_F32] = f32_func_f32;
-    Table[RTLIB::LOG_F64] = f64_func_f64;
-    Table[RTLIB::LOG_F128] = func_iPTR_i64_i64;
-    Table[RTLIB::LOG2_F32] = f32_func_f32;
-    Table[RTLIB::LOG2_F64] = f64_func_f64;
-    Table[RTLIB::LOG2_F128] = func_iPTR_i64_i64;
-    Table[RTLIB::LOG10_F32] = f32_func_f32;
-    Table[RTLIB::LOG10_F64] = f64_func_f64;
-    Table[RTLIB::LOG10_F128] = func_iPTR_i64_i64;
-    Table[RTLIB::EXP_F32] = f32_func_f32;
-    Table[RTLIB::EXP_F64] = f64_func_f64;
-    Table[RTLIB::EXP_F128] = func_iPTR_i64_i64;
-    Table[RTLIB::EXP2_F32] = f32_func_f32;
-    Table[RTLIB::EXP2_F64] = f64_func_f64;
-    Table[RTLIB::EXP2_F128] = func_iPTR_i64_i64;
-    Table[RTLIB::SIN_F32] = f32_func_f32;
-    Table[RTLIB::SIN_F64] = f64_func_f64;
-    Table[RTLIB::SIN_F128] = func_iPTR_i64_i64;
-    Table[RTLIB::COS_F32] = f32_func_f32;
-    Table[RTLIB::COS_F64] = f64_func_f64;
-    Table[RTLIB::COS_F128] = func_iPTR_i64_i64;
-    Table[RTLIB::SINCOS_F32] = func_f32_iPTR_iPTR;
-    Table[RTLIB::SINCOS_F64] = func_f64_iPTR_iPTR;
-    Table[RTLIB::SINCOS_F128] = func_i64_i64_iPTR_iPTR;
-    Table[RTLIB::POW_F32] = f32_func_f32_f32;
-    Table[RTLIB::POW_F64] = f64_func_f64_f64;
-    Table[RTLIB::POW_F128] = func_iPTR_i64_i64_i64_i64;
-    Table[RTLIB::CEIL_F32] = f32_func_f32;
-    Table[RTLIB::CEIL_F64] = f64_func_f64;
-    Table[RTLIB::CEIL_F128] = func_iPTR_i64_i64;
-    Table[RTLIB::TRUNC_F32] = f32_func_f32;
-    Table[RTLIB::TRUNC_F64] = f64_func_f64;
-    Table[RTLIB::TRUNC_F128] = func_iPTR_i64_i64;
-    Table[RTLIB::RINT_F32] = f32_func_f32;
-    Table[RTLIB::RINT_F64] = f64_func_f64;
-    Table[RTLIB::RINT_F128] = func_iPTR_i64_i64;
-    Table[RTLIB::NEARBYINT_F32] = f32_func_f32;
-    Table[RTLIB::NEARBYINT_F64] = f64_func_f64;
-    Table[RTLIB::NEARBYINT_F128] = func_iPTR_i64_i64;
-    Table[RTLIB::ROUND_F32] = f32_func_f32;
-    Table[RTLIB::ROUND_F64] = f64_func_f64;
-    Table[RTLIB::ROUND_F128] = func_iPTR_i64_i64;
-    Table[RTLIB::LROUND_F32] = iPTR_func_f32;
-    Table[RTLIB::LROUND_F64] = iPTR_func_f64;
-    Table[RTLIB::LROUND_F128] = iPTR_func_i64_i64;
-    Table[RTLIB::LLROUND_F32] = i64_func_f32;
-    Table[RTLIB::LLROUND_F64] = i64_func_f64;
-    Table[RTLIB::LLROUND_F128] = i64_func_i64_i64;
-    Table[RTLIB::LRINT_F32] = iPTR_func_f32;
-    Table[RTLIB::LRINT_F64] = iPTR_func_f64;
-    Table[RTLIB::LRINT_F128] = iPTR_func_i64_i64;
-    Table[RTLIB::LLRINT_F32] = i64_func_f32;
-    Table[RTLIB::LLRINT_F64] = i64_func_f64;
-    Table[RTLIB::LLRINT_F128] = i64_func_i64_i64;
-    Table[RTLIB::FLOOR_F32] = f32_func_f32;
-    Table[RTLIB::FLOOR_F64] = f64_func_f64;
-    Table[RTLIB::FLOOR_F128] = func_iPTR_i64_i64;
-    Table[RTLIB::COPYSIGN_F32] = f32_func_f32_f32;
-    Table[RTLIB::COPYSIGN_F64] = f64_func_f64_f64;
-    Table[RTLIB::COPYSIGN_F128] = func_iPTR_i64_i64_i64_i64;
-    Table[RTLIB::FMIN_F32] = f32_func_f32_f32;
-    Table[RTLIB::FMIN_F64] = f64_func_f64_f64;
-    Table[RTLIB::FMIN_F128] = func_iPTR_i64_i64_i64_i64;
-    Table[RTLIB::FMAX_F32] = f32_func_f32_f32;
-    Table[RTLIB::FMAX_F64] = f64_func_f64_f64;
-    Table[RTLIB::FMAX_F128] = func_iPTR_i64_i64_i64_i64;
-
-    // Conversion
-    // All F80 and PPCF128 routines are unsupported.
-    Table[RTLIB::FPEXT_F64_F128] = func_iPTR_f64;
-    Table[RTLIB::FPEXT_F32_F128] = func_iPTR_f32;
-    Table[RTLIB::FPEXT_F32_F64] = f64_func_f32;
-    Table[RTLIB::FPEXT_F16_F32] = f32_func_i16;
-    Table[RTLIB::FPROUND_F32_F16] = i16_func_f32;
-    Table[RTLIB::FPROUND_F64_F16] = i16_func_f64;
-    Table[RTLIB::FPROUND_F64_F32] = f32_func_f64;
-    Table[RTLIB::FPROUND_F128_F16] = i16_func_i64_i64;
-    Table[RTLIB::FPROUND_F128_F32] = f32_func_i64_i64;
-    Table[RTLIB::FPROUND_F128_F64] = f64_func_i64_i64;
-    Table[RTLIB::FPTOSINT_F32_I32] = i32_func_f32;
-    Table[RTLIB::FPTOSINT_F32_I64] = i64_func_f32;
-    Table[RTLIB::FPTOSINT_F32_I128] = i64_i64_func_f32;
-    Table[RTLIB::FPTOSINT_F64_I32] = i32_func_f64;
-    Table[RTLIB::FPTOSINT_F64_I64] = i64_func_f64;
-    Table[RTLIB::FPTOSINT_F64_I128] = i64_i64_func_f64;
-    Table[RTLIB::FPTOSINT_F128_I32] = i32_func_i64_i64;
-    Table[RTLIB::FPTOSINT_F128_I64] = i64_func_i64_i64;
-    Table[RTLIB::FPTOSINT_F128_I128] = i64_i64_func_i64_i64;
-    Table[RTLIB::FPTOUINT_F32_I32] = i32_func_f32;
-    Table[RTLIB::FPTOUINT_F32_I64] = i64_func_f32;
-    Table[RTLIB::FPTOUINT_F32_I128] = i64_i64_func_f32;
-    Table[RTLIB::FPTOUINT_F64_I32] = i32_func_f64;
-    Table[RTLIB::FPTOUINT_F64_I64] = i64_func_f64;
-    Table[RTLIB::FPTOUINT_F64_I128] = i64_i64_func_f64;
-    Table[RTLIB::FPTOUINT_F128_I32] = i32_func_i64_i64;
-    Table[RTLIB::FPTOUINT_F128_I64] = i64_func_i64_i64;
-    Table[RTLIB::FPTOUINT_F128_I128] = i64_i64_func_i64_i64;
-    Table[RTLIB::SINTTOFP_I32_F32] = f32_func_i32;
-    Table[RTLIB::SINTTOFP_I32_F64] = f64_func_i32;
-    Table[RTLIB::SINTTOFP_I32_F128] = func_iPTR_i32;
-    Table[RTLIB::SINTTOFP_I64_F32] = f32_func_i64;
-    Table[RTLIB::SINTTOFP_I64_F64] = f64_func_i64;
-    Table[RTLIB::SINTTOFP_I64_F128] = func_iPTR_i64;
-    Table[RTLIB::SINTTOFP_I128_F32] = f32_func_i64_i64;
-    Table[RTLIB::SINTTOFP_I128_F64] = f64_func_i64_i64;
-    Table[RTLIB::SINTTOFP_I128_F128] = func_iPTR_i64_i64;
-    Table[RTLIB::UINTTOFP_I32_F32] = f32_func_i32;
-    Table[RTLIB::UINTTOFP_I32_F64] = f64_func_i64;
-    Table[RTLIB::UINTTOFP_I32_F128] = func_iPTR_i32;
-    Table[RTLIB::UINTTOFP_I64_F32] = f32_func_i64;
-    Table[RTLIB::UINTTOFP_I64_F64] = f64_func_i64;
-    Table[RTLIB::UINTTOFP_I64_F128] = func_iPTR_i64;
-    Table[RTLIB::UINTTOFP_I128_F32] = f32_func_i64_i64;
-    Table[RTLIB::UINTTOFP_I128_F64] = f64_func_i64_i64;
-    Table[RTLIB::UINTTOFP_I128_F128] = func_iPTR_i64_i64;
-
-    // Comparison
-    // ALl F80 and PPCF128 routines are unsupported.
-    Table[RTLIB::OEQ_F32] = i32_func_f32_f32;
-    Table[RTLIB::OEQ_F64] = i32_func_f64_f64;
-    Table[RTLIB::OEQ_F128] = i32_func_i64_i64_i64_i64;
-    Table[RTLIB::UNE_F32] = i32_func_f32_f32;
-    Table[RTLIB::UNE_F64] = i32_func_f64_f64;
-    Table[RTLIB::UNE_F128] = i32_func_i64_i64_i64_i64;
-    Table[RTLIB::OGE_F32] = i32_func_f32_f32;
-    Table[RTLIB::OGE_F64] = i32_func_f64_f64;
-    Table[RTLIB::OGE_F128] = i32_func_i64_i64_i64_i64;
-    Table[RTLIB::OLT_F32] = i32_func_f32_f32;
-    Table[RTLIB::OLT_F64] = i32_func_f64_f64;
-    Table[RTLIB::OLT_F128] = i32_func_i64_i64_i64_i64;
-    Table[RTLIB::OLE_F32] = i32_func_f32_f32;
-    Table[RTLIB::OLE_F64] = i32_func_f64_f64;
-    Table[RTLIB::OLE_F128] = i32_func_i64_i64_i64_i64;
-    Table[RTLIB::OGT_F32] = i32_func_f32_f32;
-    Table[RTLIB::OGT_F64] = i32_func_f64_f64;
-    Table[RTLIB::OGT_F128] = i32_func_i64_i64_i64_i64;
-    Table[RTLIB::UO_F32] = i32_func_f32_f32;
-    Table[RTLIB::UO_F64] = i32_func_f64_f64;
-    Table[RTLIB::UO_F128] = i32_func_i64_i64_i64_i64;
-    // O_FXX has the weird property that it uses the same libcall name as UO_FXX
-    // This breaks our name-based lookup. Fortunately only the UO family of
-    // libcalls appears to be actually used.
-    Table[RTLIB::O_F32] = unsupported;
-    Table[RTLIB::O_F64] = unsupported;
-    Table[RTLIB::O_F128] = unsupported;
-
-    // Memory
-    Table[RTLIB::MEMCPY] = iPTR_func_iPTR_iPTR_iPTR;
-    Table[RTLIB::MEMSET] = iPTR_func_iPTR_i32_iPTR;
-    Table[RTLIB::MEMMOVE] = iPTR_func_iPTR_iPTR_iPTR;
-
-    // __stack_chk_fail
-    Table[RTLIB::STACKPROTECTOR_CHECK_FAIL] = func;
-
-    // Return address handling
-    Table[RTLIB::RETURN_ADDRESS] = i32_func_i32;
-
-    // Element-wise Atomic memory
-    // TODO: Fix these when we implement atomic support
-    Table[RTLIB::MEMCPY_ELEMENT_UNORDERED_ATOMIC_1] = unsupported;
-    Table[RTLIB::MEMCPY_ELEMENT_UNORDERED_ATOMIC_2] = unsupported;
-    Table[RTLIB::MEMCPY_ELEMENT_UNORDERED_ATOMIC_4] = unsupported;
-    Table[RTLIB::MEMCPY_ELEMENT_UNORDERED_ATOMIC_8] = unsupported;
-    Table[RTLIB::MEMCPY_ELEMENT_UNORDERED_ATOMIC_16] = unsupported;
-    Table[RTLIB::MEMMOVE_ELEMENT_UNORDERED_ATOMIC_1] = unsupported;
-    Table[RTLIB::MEMMOVE_ELEMENT_UNORDERED_ATOMIC_2] = unsupported;
-    Table[RTLIB::MEMMOVE_ELEMENT_UNORDERED_ATOMIC_4] = unsupported;
-    Table[RTLIB::MEMMOVE_ELEMENT_UNORDERED_ATOMIC_8] = unsupported;
-    Table[RTLIB::MEMMOVE_ELEMENT_UNORDERED_ATOMIC_16] = unsupported;
-
-    Table[RTLIB::MEMSET_ELEMENT_UNORDERED_ATOMIC_1] = unsupported;
-    Table[RTLIB::MEMSET_ELEMENT_UNORDERED_ATOMIC_2] = unsupported;
-    Table[RTLIB::MEMSET_ELEMENT_UNORDERED_ATOMIC_4] = unsupported;
-    Table[RTLIB::MEMSET_ELEMENT_UNORDERED_ATOMIC_8] = unsupported;
-    Table[RTLIB::MEMSET_ELEMENT_UNORDERED_ATOMIC_16] = unsupported;
-
-    // Atomic '__sync_*' libcalls.
-    // TODO: Fix these when we implement atomic support
-    Table[RTLIB::SYNC_VAL_COMPARE_AND_SWAP_1] = unsupported;
-    Table[RTLIB::SYNC_VAL_COMPARE_AND_SWAP_2] = unsupported;
-    Table[RTLIB::SYNC_VAL_COMPARE_AND_SWAP_4] = unsupported;
-    Table[RTLIB::SYNC_VAL_COMPARE_AND_SWAP_8] = unsupported;
-    Table[RTLIB::SYNC_VAL_COMPARE_AND_SWAP_16] = unsupported;
-    Table[RTLIB::SYNC_LOCK_TEST_AND_SET_1] = unsupported;
-    Table[RTLIB::SYNC_LOCK_TEST_AND_SET_2] = unsupported;
-    Table[RTLIB::SYNC_LOCK_TEST_AND_SET_4] = unsupported;
-    Table[RTLIB::SYNC_LOCK_TEST_AND_SET_8] = unsupported;
-    Table[RTLIB::SYNC_LOCK_TEST_AND_SET_16] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_ADD_1] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_ADD_2] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_ADD_4] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_ADD_8] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_ADD_16] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_SUB_1] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_SUB_2] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_SUB_4] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_SUB_8] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_SUB_16] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_AND_1] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_AND_2] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_AND_4] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_AND_8] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_AND_16] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_OR_1] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_OR_2] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_OR_4] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_OR_8] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_OR_16] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_XOR_1] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_XOR_2] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_XOR_4] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_XOR_8] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_XOR_16] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_NAND_1] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_NAND_2] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_NAND_4] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_NAND_8] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_NAND_16] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_MAX_1] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_MAX_2] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_MAX_4] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_MAX_8] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_MAX_16] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_UMAX_1] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_UMAX_2] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_UMAX_4] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_UMAX_8] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_UMAX_16] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_MIN_1] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_MIN_2] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_MIN_4] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_MIN_8] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_MIN_16] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_UMIN_1] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_UMIN_2] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_UMIN_4] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_UMIN_8] = unsupported;
-    Table[RTLIB::SYNC_FETCH_AND_UMIN_16] = unsupported;
-
-    // Atomic '__atomic_*' libcalls.
-    // TODO: Fix these when we implement atomic support
-    Table[RTLIB::ATOMIC_LOAD] = unsupported;
-    Table[RTLIB::ATOMIC_LOAD_1] = unsupported;
-    Table[RTLIB::ATOMIC_LOAD_2] = unsupported;
-    Table[RTLIB::ATOMIC_LOAD_4] = unsupported;
-    Table[RTLIB::ATOMIC_LOAD_8] = unsupported;
-    Table[RTLIB::ATOMIC_LOAD_16] = unsupported;
-
-    Table[RTLIB::ATOMIC_STORE] = unsupported;
-    Table[RTLIB::ATOMIC_STORE_1] = unsupported;
-    Table[RTLIB::ATOMIC_STORE_2] = unsupported;
-    Table[RTLIB::ATOMIC_STORE_4] = unsupported;
-    Table[RTLIB::ATOMIC_STORE_8] = unsupported;
-    Table[RTLIB::ATOMIC_STORE_16] = unsupported;
-
-    Table[RTLIB::ATOMIC_EXCHANGE] = unsupported;
-    Table[RTLIB::ATOMIC_EXCHANGE_1] = unsupported;
-    Table[RTLIB::ATOMIC_EXCHANGE_2] = unsupported;
-    Table[RTLIB::ATOMIC_EXCHANGE_4] = unsupported;
-    Table[RTLIB::ATOMIC_EXCHANGE_8] = unsupported;
-    Table[RTLIB::ATOMIC_EXCHANGE_16] = unsupported;
-
-    Table[RTLIB::ATOMIC_COMPARE_EXCHANGE] = unsupported;
-    Table[RTLIB::ATOMIC_COMPARE_EXCHANGE_1] = unsupported;
-    Table[RTLIB::ATOMIC_COMPARE_EXCHANGE_2] = unsupported;
-    Table[RTLIB::ATOMIC_COMPARE_EXCHANGE_4] = unsupported;
-    Table[RTLIB::ATOMIC_COMPARE_EXCHANGE_8] = unsupported;
-    Table[RTLIB::ATOMIC_COMPARE_EXCHANGE_16] = unsupported;
-
-    Table[RTLIB::ATOMIC_FETCH_ADD_1] = unsupported;
-    Table[RTLIB::ATOMIC_FETCH_ADD_2] = unsupported;
-    Table[RTLIB::ATOMIC_FETCH_ADD_4] = unsupported;
-    Table[RTLIB::ATOMIC_FETCH_ADD_8] = unsupported;
-    Table[RTLIB::ATOMIC_FETCH_ADD_16] = unsupported;
-
-    Table[RTLIB::ATOMIC_FETCH_SUB_1] = unsupported;
-    Table[RTLIB::ATOMIC_FETCH_SUB_2] = unsupported;
-    Table[RTLIB::ATOMIC_FETCH_SUB_4] = unsupported;
-    Table[RTLIB::ATOMIC_FETCH_SUB_8] = unsupported;
-    Table[RTLIB::ATOMIC_FETCH_SUB_16] = unsupported;
-
-    Table[RTLIB::ATOMIC_FETCH_AND_1] = unsupported;
-    Table[RTLIB::ATOMIC_FETCH_AND_2] = unsupported;
-    Table[RTLIB::ATOMIC_FETCH_AND_4] = unsupported;
-    Table[RTLIB::ATOMIC_FETCH_AND_8] = unsupported;
-    Table[RTLIB::ATOMIC_FETCH_AND_16] = unsupported;
-
-    Table[RTLIB::ATOMIC_FETCH_OR_1] = unsupported;
-    Table[RTLIB::ATOMIC_FETCH_OR_2] = unsupported;
-    Table[RTLIB::ATOMIC_FETCH_OR_4] = unsupported;
-    Table[RTLIB::ATOMIC_FETCH_OR_8] = unsupported;
-    Table[RTLIB::ATOMIC_FETCH_OR_16] = unsupported;
-
-    Table[RTLIB::ATOMIC_FETCH_XOR_1] = unsupported;
-    Table[RTLIB::ATOMIC_FETCH_XOR_2] = unsupported;
-    Table[RTLIB::ATOMIC_FETCH_XOR_4] = unsupported;
-    Table[RTLIB::ATOMIC_FETCH_XOR_8] = unsupported;
-    Table[RTLIB::ATOMIC_FETCH_XOR_16] = unsupported;
-
-    Table[RTLIB::ATOMIC_FETCH_NAND_1] = unsupported;
-    Table[RTLIB::ATOMIC_FETCH_NAND_2] = unsupported;
-    Table[RTLIB::ATOMIC_FETCH_NAND_4] = unsupported;
-    Table[RTLIB::ATOMIC_FETCH_NAND_8] = unsupported;
-    Table[RTLIB::ATOMIC_FETCH_NAND_16] = unsupported;
-  }
-};
-
-ManagedStatic<RuntimeLibcallSignatureTable> RuntimeLibcallSignatures;
-
-// Maps libcall names to their RTLIB::Libcall number. Builds the map in a
-// constructor for use with ManagedStatic
-struct StaticLibcallNameMap {
-  StringMap<RTLIB::Libcall> Map;
-  StaticLibcallNameMap() {
-    static const std::pair<const char *, RTLIB::Libcall> NameLibcalls[] = {
-#define HANDLE_LIBCALL(code, name) {(const char *)name, RTLIB::code},
-#include "llvm/IR/RuntimeLibcalls.def"
-#undef HANDLE_LIBCALL
-    };
-    for (const auto &NameLibcall : NameLibcalls) {
-      if (NameLibcall.first != nullptr &&
-          RuntimeLibcallSignatures->Table[NameLibcall.second] != unsupported) {
-        assert(Map.find(NameLibcall.first) == Map.end() &&
-               "duplicate libcall names in name map");
-        Map[NameLibcall.first] = NameLibcall.second;
-      }
-    }
-    // Override the __gnu_f2h_ieee/__gnu_h2f_ieee names so that the f32 name is
-    // consistent with the f64 and f128 names.
-    Map["__extendhfsf2"] = RTLIB::FPEXT_F16_F32;
-    Map["__truncsfhf2"] = RTLIB::FPROUND_F32_F16;
-
-    Map["emscripten_return_address"] = RTLIB::RETURN_ADDRESS;
-  }
-};
-
-} // end anonymous namespace
-
-void llvm::getLibcallSignature(const WebAssemblySubtarget &Subtarget,
-                               RTLIB::Libcall LC,
-                               SmallVectorImpl<wasm::ValType> &Rets,
-                               SmallVectorImpl<wasm::ValType> &Params) {
-  assert(Rets.empty());
-  assert(Params.empty());
-
-  wasm::ValType PtrTy =
-      Subtarget.hasAddr64() ? wasm::ValType::I64 : wasm::ValType::I32;
-
-  auto &Table = RuntimeLibcallSignatures->Table;
-  switch (Table[LC]) {
-  case func:
-    break;
-  case f32_func_f32:
-    Rets.push_back(wasm::ValType::F32);
-    Params.push_back(wasm::ValType::F32);
-    break;
-  case f32_func_f64:
-    Rets.push_back(wasm::ValType::F32);
-    Params.push_back(wasm::ValType::F64);
-    break;
-  case f32_func_i32:
-    Rets.push_back(wasm::ValType::F32);
-    Params.push_back(wasm::ValType::I32);
-    break;
-  case f32_func_i64:
-    Rets.push_back(wasm::ValType::F32);
-    Params.push_back(wasm::ValType::I64);
-    break;
-  case f32_func_i16:
-    Rets.push_back(wasm::ValType::F32);
-    Params.push_back(wasm::ValType::I32);
-    break;
-  case f64_func_f32:
-    Rets.push_back(wasm::ValType::F64);
-    Params.push_back(wasm::ValType::F32);
-    break;
-  case f64_func_f64:
-    Rets.push_back(wasm::ValType::F64);
-    Params.push_back(wasm::ValType::F64);
-    break;
-  case f64_func_i32:
-    Rets.push_back(wasm::ValType::F64);
-    Params.push_back(wasm::ValType::I32);
-    break;
-  case f64_func_i64:
-    Rets.push_back(wasm::ValType::F64);
-    Params.push_back(wasm::ValType::I64);
-    break;
-  case i32_func_f32:
-    Rets.push_back(wasm::ValType::I32);
-    Params.push_back(wasm::ValType::F32);
-    break;
-  case i32_func_f64:
-    Rets.push_back(wasm::ValType::I32);
-    Params.push_back(wasm::ValType::F64);
-    break;
-  case i32_func_i32:
-    Rets.push_back(wasm::ValType::I32);
-    Params.push_back(wasm::ValType::I32);
-    break;
-  case i64_func_f32:
-    Rets.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::F32);
-    break;
-  case i64_func_f64:
-    Rets.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::F64);
-    break;
-  case i64_func_i64:
-    Rets.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I64);
-    break;
-  case f32_func_f32_f32:
-    Rets.push_back(wasm::ValType::F32);
-    Params.push_back(wasm::ValType::F32);
-    Params.push_back(wasm::ValType::F32);
-    break;
-  case f32_func_f32_i32:
-    Rets.push_back(wasm::ValType::F32);
-    Params.push_back(wasm::ValType::F32);
-    Params.push_back(wasm::ValType::I32);
-    break;
-  case f32_func_i64_i64:
-    Rets.push_back(wasm::ValType::F32);
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I64);
-    break;
-  case f64_func_f64_f64:
-    Rets.push_back(wasm::ValType::F64);
-    Params.push_back(wasm::ValType::F64);
-    Params.push_back(wasm::ValType::F64);
-    break;
-  case f64_func_f64_i32:
-    Rets.push_back(wasm::ValType::F64);
-    Params.push_back(wasm::ValType::F64);
-    Params.push_back(wasm::ValType::I32);
-    break;
-  case f64_func_i64_i64:
-    Rets.push_back(wasm::ValType::F64);
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I64);
-    break;
-  case i16_func_f32:
-    Rets.push_back(wasm::ValType::I32);
-    Params.push_back(wasm::ValType::F32);
-    break;
-  case i16_func_f64:
-    Rets.push_back(wasm::ValType::I32);
-    Params.push_back(wasm::ValType::F64);
-    break;
-  case i16_func_i64_i64:
-    Rets.push_back(wasm::ValType::I32);
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I64);
-    break;
-  case i8_func_i8_i8:
-    Rets.push_back(wasm::ValType::I32);
-    Params.push_back(wasm::ValType::I32);
-    Params.push_back(wasm::ValType::I32);
-    break;
-  case func_f32_iPTR_iPTR:
-    Params.push_back(wasm::ValType::F32);
-    Params.push_back(PtrTy);
-    Params.push_back(PtrTy);
-    break;
-  case func_f64_iPTR_iPTR:
-    Params.push_back(wasm::ValType::F64);
-    Params.push_back(PtrTy);
-    Params.push_back(PtrTy);
-    break;
-  case i16_func_i16_i16:
-    Rets.push_back(wasm::ValType::I32);
-    Params.push_back(wasm::ValType::I32);
-    Params.push_back(wasm::ValType::I32);
-    break;
-  case i32_func_f32_f32:
-    Rets.push_back(wasm::ValType::I32);
-    Params.push_back(wasm::ValType::F32);
-    Params.push_back(wasm::ValType::F32);
-    break;
-  case i32_func_f64_f64:
-    Rets.push_back(wasm::ValType::I32);
-    Params.push_back(wasm::ValType::F64);
-    Params.push_back(wasm::ValType::F64);
-    break;
-  case i32_func_i32_i32:
-    Rets.push_back(wasm::ValType::I32);
-    Params.push_back(wasm::ValType::I32);
-    Params.push_back(wasm::ValType::I32);
-    break;
-  case i32_func_i32_i32_iPTR:
-    Rets.push_back(wasm::ValType::I32);
-    Params.push_back(wasm::ValType::I32);
-    Params.push_back(wasm::ValType::I32);
-    Params.push_back(PtrTy);
-    break;
-  case i64_func_i64_i64:
-    Rets.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I64);
-    break;
-  case i64_func_i64_i64_iPTR:
-    Rets.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(PtrTy);
-    break;
-  case i64_i64_func_f32:
-#if 0 // TODO: Enable this when wasm gets multiple-return-value support.
-    Rets.push_back(wasm::ValType::I64);
-    Rets.push_back(wasm::ValType::I64);
-#else
-    Params.push_back(PtrTy);
-#endif
-    Params.push_back(wasm::ValType::F32);
-    break;
-  case i64_i64_func_f64:
-#if 0 // TODO: Enable this when wasm gets multiple-return-value support.
-    Rets.push_back(wasm::ValType::I64);
-    Rets.push_back(wasm::ValType::I64);
-#else
-    Params.push_back(PtrTy);
-#endif
-    Params.push_back(wasm::ValType::F64);
-    break;
-  case i16_i16_func_i16_i16:
-#if 0 // TODO: Enable this when wasm gets multiple-return-value support.
-    Rets.push_back(wasm::ValType::I32);
-    Rets.push_back(wasm::ValType::I32);
-#else
-    Params.push_back(PtrTy);
-#endif
-    Params.push_back(wasm::ValType::I32);
-    Params.push_back(wasm::ValType::I32);
-    break;
-  case i32_i32_func_i32_i32:
-#if 0 // TODO: Enable this when wasm gets multiple-return-value support.
-    Rets.push_back(wasm::ValType::I32);
-    Rets.push_back(wasm::ValType::I32);
-#else
-    Params.push_back(PtrTy);
-#endif
-    Params.push_back(wasm::ValType::I32);
-    Params.push_back(wasm::ValType::I32);
-    break;
-  case i64_i64_func_i64_i64:
-#if 0 // TODO: Enable this when wasm gets multiple-return-value support.
-    Rets.push_back(wasm::ValType::I64);
-    Rets.push_back(wasm::ValType::I64);
-#else
-    Params.push_back(PtrTy);
-#endif
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I64);
-    break;
-  case i64_i64_func_i64_i64_i64_i64:
-#if 0 // TODO: Enable this when wasm gets multiple-return-value support.
-    Rets.push_back(wasm::ValType::I64);
-    Rets.push_back(wasm::ValType::I64);
-#else
-    Params.push_back(PtrTy);
-#endif
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I64);
-    break;
-  case i64_i64_func_i64_i64_i64_i64_iPTR:
-#if 0 // TODO: Enable this when wasm gets multiple-return-value support.
-    Rets.push_back(wasm::ValType::I64);
-    Rets.push_back(wasm::ValType::I64);
-#else
-    Params.push_back(PtrTy);
-#endif
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(PtrTy);
-    break;
-  case i64_i64_i64_i64_func_i64_i64_i64_i64:
-#if 0 // TODO: Enable this when wasm gets multiple-return-value support.
-    Rets.push_back(wasm::ValType::I64);
-    Rets.push_back(wasm::ValType::I64);
-    Rets.push_back(wasm::ValType::I64);
-    Rets.push_back(wasm::ValType::I64);
-#else
-    Params.push_back(PtrTy);
-#endif
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I64);
-    break;
-  case i64_i64_func_i64_i64_i32:
-#if 0 // TODO: Enable this when wasm gets multiple-return-value support.
-    Rets.push_back(wasm::ValType::I64);
-    Rets.push_back(wasm::ValType::I64);
-    Rets.push_back(wasm::ValType::I64);
-    Rets.push_back(wasm::ValType::I64);
-#else
-    Params.push_back(PtrTy);
-#endif
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I32);
-    break;
-  case iPTR_func_iPTR_i32_iPTR:
-    Rets.push_back(PtrTy);
-    Params.push_back(PtrTy);
-    Params.push_back(wasm::ValType::I32);
-    Params.push_back(PtrTy);
-    break;
-  case iPTR_func_iPTR_iPTR_iPTR:
-    Rets.push_back(PtrTy);
-    Params.push_back(PtrTy);
-    Params.push_back(PtrTy);
-    Params.push_back(PtrTy);
-    break;
-  case f32_func_f32_f32_f32:
-    Rets.push_back(wasm::ValType::F32);
-    Params.push_back(wasm::ValType::F32);
-    Params.push_back(wasm::ValType::F32);
-    Params.push_back(wasm::ValType::F32);
-    break;
-  case f64_func_f64_f64_f64:
-    Rets.push_back(wasm::ValType::F64);
-    Params.push_back(wasm::ValType::F64);
-    Params.push_back(wasm::ValType::F64);
-    Params.push_back(wasm::ValType::F64);
-    break;
-  case func_i64_i64_iPTR_iPTR:
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(PtrTy);
-    Params.push_back(PtrTy);
-    break;
-  case func_iPTR_f32:
-    Params.push_back(PtrTy);
-    Params.push_back(wasm::ValType::F32);
-    break;
-  case func_iPTR_f64:
-    Params.push_back(PtrTy);
-    Params.push_back(wasm::ValType::F64);
-    break;
-  case func_iPTR_i32:
-    Params.push_back(PtrTy);
-    Params.push_back(wasm::ValType::I32);
-    break;
-  case func_iPTR_i64:
-    Params.push_back(PtrTy);
-    Params.push_back(wasm::ValType::I64);
-    break;
-  case func_iPTR_i64_i64:
-    Params.push_back(PtrTy);
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I64);
-    break;
-  case func_iPTR_i64_i64_i64_i64:
-    Params.push_back(PtrTy);
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I64);
-    break;
-  case func_iPTR_i64_i64_i64_i64_i64_i64:
-    Params.push_back(PtrTy);
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I64);
-    break;
-  case i32_func_i64_i64:
-    Rets.push_back(wasm::ValType::I32);
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I64);
-    break;
-  case i32_func_i64_i64_i64_i64:
-    Rets.push_back(wasm::ValType::I32);
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I64);
-    break;
-  case iPTR_func_f32:
-    Rets.push_back(PtrTy);
-    Params.push_back(wasm::ValType::F32);
-    break;
-  case iPTR_func_f64:
-    Rets.push_back(PtrTy);
-    Params.push_back(wasm::ValType::F64);
-    break;
-  case iPTR_func_i64_i64:
-    Rets.push_back(PtrTy);
-    Params.push_back(wasm::ValType::I64);
-    Params.push_back(wasm::ValType::I64);
-    break;
-  case unsupported:
-    llvm_unreachable("unsupported runtime library signature");
-  }
-}
-
-static ManagedStatic<StaticLibcallNameMap> LibcallNameMap;
-// TODO: If the RTLIB::Libcall-taking flavor of GetSignature remains unsed
-// other than here, just roll its logic into this version.
-void llvm::getLibcallSignature(const WebAssemblySubtarget &Subtarget,
-                               const char *Name,
-                               SmallVectorImpl<wasm::ValType> &Rets,
-                               SmallVectorImpl<wasm::ValType> &Params) {
-  auto &Map = LibcallNameMap->Map;
-  auto Val = Map.find(Name);
-#ifndef NDEBUG
-  if (Val == Map.end()) {
-    auto message = std::string("unexpected runtime library name: ") + Name;
-    llvm_unreachable(message.c_str());
-  }
-#endif
-  return getLibcallSignature(Subtarget, Val->second, Rets, Params);
-}