LLVM  3.7.0
WebAssemblyTargetTransformInfo.cpp
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1 //===-- WebAssemblyTargetTransformInfo.cpp - WebAssembly-specific TTI -----===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 ///
10 /// \file
11 /// \brief This file defines the WebAssembly-specific TargetTransformInfo
12 /// implementation.
13 ///
14 //===----------------------------------------------------------------------===//
15 
17 #include "llvm/Support/Debug.h"
18 #include "llvm/Target/CostTable.h"
19 using namespace llvm;
20 
21 #define DEBUG_TYPE "wasmtti"
22 
25  assert(isPowerOf2_32(TyWidth) && "Ty width must be power of 2");
26  // TODO: Make Math.popcount32 happen in WebAssembly.
27  return TTI::PSK_Software;
28 }
Cost tables and simple lookup functions.
This file a TargetTransformInfo::Concept conforming object specific to the WebAssembly target machine...
PopcntSupportKind
Flags indicating the kind of support for population count.
TTI::PopcntSupportKind getPopcntSupport(unsigned TyWidth)
bool isPowerOf2_32(uint32_t Value)
isPowerOf2_32 - This function returns true if the argument is a power of two > 0. ...
Definition: MathExtras.h:354