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Revert "make reciprocal estimate code generation more flexible by adding command-line options"

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This reverts commit r238051.

It broke some bots:

http://lab.llvm.org:8011/builders/llvm-ppc64-linux1/builds/18190

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238075 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2015-05-23 00:22:44 +00:00
parent 4e5aa77b3d
commit 58bf2827d3
12 changed files with 59 additions and 358 deletions
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8
include/llvm/Target/TargetOptions.h
View File

@@ -15,7 +15,6 @@
#ifndef LLVM_TARGET_TARGETOPTIONS_H
#define LLVM_TARGET_TARGETOPTIONS_H
#include "llvm/Target/TargetRecip.h"
#include "llvm/MC/MCTargetOptions.h"
#include <string>
@@ -72,8 +71,7 @@ namespace llvm {
CompressDebugSections(false), FunctionSections(false),
DataSections(false), UniqueSectionNames(true), TrapUnreachable(false),
TrapFuncName(), FloatABIType(FloatABI::Default),
AllowFPOpFusion(FPOpFusion::Standard), Reciprocals(),
JTType(JumpTable::Single),
AllowFPOpFusion(FPOpFusion::Standard), JTType(JumpTable::Single),
ThreadModel(ThreadModel::POSIX) {}
/// PrintMachineCode - This flag is enabled when the -print-machineinstrs
@@ -212,9 +210,6 @@ namespace llvm {
/// the value of this option.
FPOpFusion::FPOpFusionMode AllowFPOpFusion;
/// This class encapsulates options for reciprocal-estimate code generation.
TargetRecip Reciprocals;
/// JTType - This flag specifies the type of jump-instruction table to
/// create for functions that have the jumptable attribute.
JumpTable::JumpTableType JTType;
@@ -249,7 +244,6 @@ inline bool operator==(const TargetOptions &LHS,
ARE_EQUAL(TrapFuncName) &&
ARE_EQUAL(FloatABIType) &&
ARE_EQUAL(AllowFPOpFusion) &&
ARE_EQUAL(Reciprocals) &&
ARE_EQUAL(JTType) &&
ARE_EQUAL(ThreadModel) &&
ARE_EQUAL(MCOptions);

72
include/llvm/Target/TargetRecip.h
View File

@@ -1,72 +0,0 @@
//===--------------------- llvm/Target/TargetRecip.h ------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This class is used to customize machine-specific reciprocal estimate code
// generation in a target-independent way.
// If a target does not support operations in this specification, then code
// generation will default to using supported operations.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TARGET_TARGETRECIP_H
#define LLVM_TARGET_TARGETRECIP_H
#include <vector>
#include <string>
#include <map>
namespace llvm {
struct TargetRecip {
public:
TargetRecip();
/// Initialize all or part of the operations from command-line options or
/// a front end.
TargetRecip(const std::vector<std::string> &Args);
/// Set whether a particular reciprocal operation is enabled and how many
/// refinement steps are needed when using it. Use "all" to set enablement
/// and refinement steps for all operations.
void setDefaults(const StringRef &Key, bool Enable, unsigned RefSteps);
/// Return true if the reciprocal operation has been enabled by default or
/// from the command-line. Return false if the operation has been disabled
/// by default or from the command-line.
bool isEnabled(const StringRef &Key) const;
/// Return the number of iterations necessary to refine the
/// the result of a machine instruction for the given reciprocal operation.
unsigned getRefinementSteps(const StringRef &Key) const;
bool operator==(const TargetRecip &Other) const;
private:
enum {
Uninitialized = -1
};
struct RecipParams {
int8_t Enabled;
int8_t RefinementSteps;
RecipParams() : Enabled(Uninitialized), RefinementSteps(Uninitialized) {}
};
std::map<StringRef, RecipParams> RecipMap;
typedef std::map<StringRef, RecipParams>::iterator RecipIter;
typedef std::map<StringRef, RecipParams>::const_iterator ConstRecipIter;
bool parseGlobalParams(const std::string &Arg);
void parseIndividualParams(const std::vector<std::string> &Args);
};
} // End llvm namespace
#endif