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d652c017f2
SONY debugger does not prefer debug entry values feature, so the plan is to avoid production of the entry values by default when the tuning is SCE debugger. The feature still can be enabled with the -debug-entry-values option for the testing/development purposes. This patch addresses PR46643. Differential Revision: https://reviews.llvm.org/D83462
58 lines
2.3 KiB
C++
58 lines
2.3 KiB
C++
//===-- TargetOptionsImpl.cpp - Options that apply to all targets ----------==//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the methods in the TargetOptions.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/CodeGen/MachineFrameInfo.h"
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#include "llvm/CodeGen/MachineFunction.h"
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#include "llvm/CodeGen/TargetFrameLowering.h"
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#include "llvm/CodeGen/TargetSubtargetInfo.h"
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#include "llvm/IR/Function.h"
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#include "llvm/IR/Module.h"
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#include "llvm/Target/TargetOptions.h"
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using namespace llvm;
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/// DisableFramePointerElim - This returns true if frame pointer elimination
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/// optimization should be disabled for the given machine function.
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bool TargetOptions::DisableFramePointerElim(const MachineFunction &MF) const {
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// Check to see if the target want to forcably keep frame pointer.
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if (MF.getSubtarget().getFrameLowering()->keepFramePointer(MF))
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return true;
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const Function &F = MF.getFunction();
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if (!F.hasFnAttribute("frame-pointer"))
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return false;
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StringRef FP = F.getFnAttribute("frame-pointer").getValueAsString();
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if (FP == "all")
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return true;
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if (FP == "non-leaf")
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return MF.getFrameInfo().hasCalls();
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if (FP == "none")
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return false;
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llvm_unreachable("unknown frame pointer flag");
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}
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/// HonorSignDependentRoundingFPMath - Return true if the codegen must assume
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/// that the rounding mode of the FPU can change from its default.
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bool TargetOptions::HonorSignDependentRoundingFPMath() const {
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return !UnsafeFPMath && HonorSignDependentRoundingFPMathOption;
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}
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/// NOTE: There are targets that still do not support the debug entry values
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/// production and that is being controlled with the SupportsDebugEntryValues.
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/// In addition, SCE debugger does not have the feature implemented, so prefer
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/// not to emit the debug entry values in that case.
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/// The EnableDebugEntryValues can be used for the testing purposes.
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bool TargetOptions::ShouldEmitDebugEntryValues() const {
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return (SupportsDebugEntryValues && DebuggerTuning != DebuggerKind::SCE) ||
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EnableDebugEntryValues;
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}
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