mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-25 04:02:41 +01:00
09b63898c4
This commit changes normal isel and fast isel to read the user-defined trap function name from function attribute "trap-func-name" attached to llvm.trap or llvm.debugtrap instead of from TargetOptions::TrapFuncName. This is needed to use clang's command line option "-ftrap-function" for LTO and enable changing the trap function name on a per-call-site basis. Out-of-tree projects currently using TargetOptions::TrapFuncName to specify the trap function name should attach attribute "trap-func-name" to the call sites of llvm.trap and llvm.debugtrap instead. rdar://problem/21225723 Differential Revision: http://reviews.llvm.org/D10832 llvm-svn: 241305
50 lines
2.0 KiB
C++
50 lines
2.0 KiB
C++
//===-- TargetOptionsImpl.cpp - Options that apply to all targets ----------==//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file implements the methods in the TargetOptions.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/IR/Function.h"
|
|
#include "llvm/IR/Module.h"
|
|
#include "llvm/CodeGen/MachineFrameInfo.h"
|
|
#include "llvm/CodeGen/MachineFunction.h"
|
|
#include "llvm/Target/TargetFrameLowering.h"
|
|
#include "llvm/Target/TargetOptions.h"
|
|
#include "llvm/Target/TargetSubtargetInfo.h"
|
|
using namespace llvm;
|
|
|
|
/// DisableFramePointerElim - This returns true if frame pointer elimination
|
|
/// optimization should be disabled for the given machine function.
|
|
bool TargetOptions::DisableFramePointerElim(const MachineFunction &MF) const {
|
|
// Check to see if we should eliminate all frame pointers.
|
|
if (MF.getSubtarget().getFrameLowering()->noFramePointerElim(MF))
|
|
return true;
|
|
|
|
// Check to see if we should eliminate non-leaf frame pointers.
|
|
if (MF.getFunction()->hasFnAttribute("no-frame-pointer-elim-non-leaf"))
|
|
return MF.getFrameInfo()->hasCalls();
|
|
|
|
return false;
|
|
}
|
|
|
|
/// LessPreciseFPMAD - This flag return true when -enable-fp-mad option
|
|
/// is specified on the command line. When this flag is off(default), the
|
|
/// code generator is not allowed to generate mad (multiply add) if the
|
|
/// result is "less precise" than doing those operations individually.
|
|
bool TargetOptions::LessPreciseFPMAD() const {
|
|
return UnsafeFPMath || LessPreciseFPMADOption;
|
|
}
|
|
|
|
/// HonorSignDependentRoundingFPMath - Return true if the codegen must assume
|
|
/// that the rounding mode of the FPU can change from its default.
|
|
bool TargetOptions::HonorSignDependentRoundingFPMath() const {
|
|
return !UnsafeFPMath && HonorSignDependentRoundingFPMathOption;
|
|
}
|