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Add initial support for machine code emission

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llvm-svn: 4865
This commit is contained in:
Chris Lattner 2002-12-02 21:22:04 +00:00
parent 54d6377268
commit d29ab7a539
1 changed files with 21 additions and 0 deletions
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21
tools/jello/jello.cpp
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@ -16,6 +16,15 @@
#include "Support/CommandLine.h"
#include "Support/Statistic.h"
#include "llvm/CodeGen/MachineCodeEmitter.h"
struct JelloMachineCodeEmitter : public MachineCodeEmitter {
};
namespace {
cl::opt<std::string>
InputFile(cl::desc("<input bytecode>"), cl::Positional, cl::init("-"));
@ -48,12 +57,24 @@ int main(int argc, char **argv) {
}
PassManager Passes;
// Compile LLVM Code down to machine code in the intermediate representation
if (Target.addPassesToJITCompile(Passes)) {
std::cerr << argv[0] << ": target '" << Target.getName()
<< "' doesn't support JIT compilation!\n";
return 1;
}
// Turn the machine code intermediate representation into bytes in memory that
// may be executed.
//
JelloMachineCodeEmitter MCE;
if (Target.addPassesToEmitMachineCode(Passes, MCE)) {
std::cerr << argv[0] << ": target '" << Target.getName()
<< "' doesn't support machine code emission!\n";
return 1;
}
// JIT all of the methods in the module. Eventually this will JIT functions
// on demand.
Passes.run(*M.get());