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Fix the ridiculous SubtargetFeatures API where it implicitly expects CPU name to

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be the first encoded as the first feature. It then uses the CPU name to look up
features / scheduling itineray even though clients know full well the CPU name
being used to query these properties.

The fix is to just have the clients explictly pass the CPU name!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134127 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2011-06-30 01:53:36 +00:00
parent ca0ede7655
commit 276365dd4b
68 changed files with 271 additions and 236 deletions
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9
lib/Target/Alpha/AlphaSubtarget.cpp
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@@ -16,10 +16,13 @@
#include "AlphaGenSubtarget.inc"
using namespace llvm;
AlphaSubtarget::AlphaSubtarget(const std::string &TT, const std::string &FS)
AlphaSubtarget::AlphaSubtarget(const std::string &TT, const std::string &CPU,
const std::string &FS)
: HasCT(false) {
std::string CPU = "generic";
std::string CPUName = CPU;
if (CPUName.empty())
CPUName = "generic";
// Parse features string.
ParseSubtargetFeatures(FS, CPU);
ParseSubtargetFeatures(FS, CPUName);
}

6
lib/Target/Alpha/AlphaSubtarget.h
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@@ -31,12 +31,12 @@ public:
/// This constructor initializes the data members to match that
/// of the specified triple.
///
AlphaSubtarget(const std::string &TT, const std::string &FS);
AlphaSubtarget(const std::string &TT, const std::string &CPU,
const std::string &FS);
/// ParseSubtargetFeatures - Parses features string setting specified
/// subtarget options. Definition of function is auto generated by tblgen.
std::string ParseSubtargetFeatures(const std::string &FS,
const std::string &CPU);
void ParseSubtargetFeatures(const std::string &FS, const std::string &CPU);
bool hasCT() const { return HasCT; }
};

3
lib/Target/Alpha/AlphaTargetMachine.cpp
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@@ -25,11 +25,12 @@ extern "C" void LLVMInitializeAlphaTarget() {
}
AlphaTargetMachine::AlphaTargetMachine(const Target &T, const std::string &TT,
const std::string &CPU,
const std::string &FS)
: LLVMTargetMachine(T, TT),
DataLayout("e-f128:128:128-n64"),
FrameLowering(Subtarget),
Subtarget(TT, FS),
Subtarget(TT, CPU, FS),
TLInfo(*this),
TSInfo(*this) {
setRelocationModel(Reloc::PIC_);

2
lib/Target/Alpha/AlphaTargetMachine.h
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@@ -37,7 +37,7 @@ class AlphaTargetMachine : public LLVMTargetMachine {
public:
AlphaTargetMachine(const Target &T, const std::string &TT,
const std::string &FS);
const std::string &CPU, const std::string &FS);
virtual const AlphaInstrInfo *getInstrInfo() const { return &InstrInfo; }
virtual const TargetFrameLowering *getFrameLowering() const {