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Completely rearchitect the interface between targets and the pass manager.

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This pass:

1. Splits TargetMachine into TargetMachine (generic targets, can be implemented
any way, like the CBE) and LLVMTargetMachine (subclass of TM that is used by
things using libcodegen and other support).
2. Instead of having each target fully populate the passmgr for file or JIT
   output, move all this to common code, and give targets hooks they can
   implement.
3. Commonalize the target population stuff between file emission and JIT
   emission.
4. All (native code) codegen stuff now happens in a FunctionPassManager, which
   paves the way for "fast -O0" stuff in the CFE later, and now LLC could
   lazily stream .bc files from disk to use less memory.
5. There are now many fewer #includes and the targets don't depend on the
   scalar xforms or libanalysis anymore (but codegen does).
6. Changing common code generator pass ordering stuff no longer requires
   touching all targets.
7. The JIT now has the option of "-fast" codegen or normal optimized codegen,
   which is now orthogonal to the fact that JIT'ing is being done.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30081 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2006-09-04 04:14:57 +00:00
parent dd842e12e1
commit 1911fd4f85
26 changed files with 400 additions and 636 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
lib/Target/X86/X86TargetMachine.h
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@@ -17,7 +17,6 @@
#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetFrameInfo.h"
#include "llvm/PassManager.h"
#include "X86.h"
#include "X86InstrInfo.h"
#include "X86JITInfo.h"
@@ -26,7 +25,7 @@
namespace llvm {
class X86TargetMachine : public TargetMachine {
class X86TargetMachine : public LLVMTargetMachine {
X86Subtarget Subtarget;
const TargetData DataLayout; // Calculates type size & alignment
TargetFrameInfo FrameInfo;
@@ -48,14 +47,19 @@ public:
}
virtual const TargetData *getTargetData() const { return &DataLayout; }
virtual bool addPassesToEmitMachineCode(FunctionPassManager &PM,
MachineCodeEmitter &MCE);
virtual bool addPassesToEmitFile(PassManager &PM, std::ostream &Out,
CodeGenFileType FileType, bool Fast);
static unsigned getModuleMatchQuality(const Module &M);
static unsigned getJITMatchQuality();
// Set up the pass pipeline.
virtual bool addInstSelector(FunctionPassManager &PM, bool Fast);
virtual bool addPostRegAlloc(FunctionPassManager &PM, bool Fast);
virtual bool addAssemblyEmitter(FunctionPassManager &PM, bool Fast,
std::ostream &Out);
virtual bool addObjectWriter(FunctionPassManager &PM, bool Fast,
std::ostream &Out);
virtual bool addCodeEmitter(FunctionPassManager &PM, bool Fast,
MachineCodeEmitter &MCE);
};
} // End llvm namespace