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- Move CodeModel from a TargetMachine global option to MCCodeGenInfo.

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- Introduce JITDefault code model. This tells targets to set different default
  code model for JIT. This eliminates the ugly hack in TargetMachine where
  code model is changed after construction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135580 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2011-07-20 07:51:56 +00:00
parent 4c8164813c
commit 34ad6db8b9
54 changed files with 277 additions and 232 deletions
Download Patch File Download Diff File Expand all files Collapse all files
lib/Target/X86/X86TargetMachine.cpp
+7 -26
View File
@@ -67,8 +67,8 @@ extern "C" void LLVMInitializeX86Target() {
X86_32TargetMachine::X86_32TargetMachine(const Target &T, StringRef TT,
StringRef CPU, StringRef FS,
Reloc::Model RM)
: X86TargetMachine(T, TT, CPU, FS, RM, false),
Reloc::Model RM, CodeModel::Model CM)
: X86TargetMachine(T, TT, CPU, FS, RM, CM, false),
DataLayout(getSubtargetImpl()->isTargetDarwin() ?
"e-p:32:32-f64:32:64-i64:32:64-f80:128:128-f128:128:128-n8:16:32" :
(getSubtargetImpl()->isTargetCygMing() ||
@@ -84,8 +84,8 @@ X86_32TargetMachine::X86_32TargetMachine(const Target &T, StringRef TT,
X86_64TargetMachine::X86_64TargetMachine(const Target &T, StringRef TT,
StringRef CPU, StringRef FS,
Reloc::Model RM)
: X86TargetMachine(T, TT, CPU, FS, RM, true),
Reloc::Model RM, CodeModel::Model CM)
: X86TargetMachine(T, TT, CPU, FS, RM, CM, true),
DataLayout("e-p:64:64-s:64-f64:64:64-i64:64:64-f80:128:128-f128:128:128-n8:16:32:64"),
InstrInfo(*this),
TSInfo(*this),
@@ -97,8 +97,9 @@ X86_64TargetMachine::X86_64TargetMachine(const Target &T, StringRef TT,
///
X86TargetMachine::X86TargetMachine(const Target &T, StringRef TT,
StringRef CPU, StringRef FS,
Reloc::Model RM, bool is64Bit)
: LLVMTargetMachine(T, TT, CPU, FS, RM),
Reloc::Model RM, CodeModel::Model CM,
bool is64Bit)
: LLVMTargetMachine(T, TT, CPU, FS, RM, CM),
Subtarget(TT, CPU, FS, StackAlignmentOverride, is64Bit),
FrameLowering(*this, Subtarget),
ELFWriterInfo(is64Bit, true) {
@@ -171,23 +172,3 @@ bool X86TargetMachine::addCodeEmitter(PassManagerBase &PM,
return false;
}
void X86TargetMachine::setCodeModelForStatic() {
if (getCodeModel() != CodeModel::Default) return;
// For static codegen, if we're not already set, use Small codegen.
setCodeModel(CodeModel::Small);
}
void X86TargetMachine::setCodeModelForJIT() {
if (getCodeModel() != CodeModel::Default) return;
// 64-bit JIT places everything in the same buffer except external functions.
if (Subtarget.is64Bit())
setCodeModel(CodeModel::Large);
else
setCodeModel(CodeModel::Small);
}