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include/llvm/CodeGen/MachineInstrBuilder.h: Add addClobber() inline

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convenience method.  Fix typo in comment.
lib/Target/X86/InstSelectSimple.cpp: Explicitly specify some implicit uses.
 Use MOVZX/MOVSX instead of MOV instructions with sign extend instructions.
 Take out LEAVE instructions.
 32-bit IDIV and DIV use CDQ, not CWQ (CWQ is a typo).
 Fix typo in comment and remove some FIXME comments.
lib/Target/X86/Printer.cpp: Include X86InstrInfo.h and llvm/Function.h.
 Add some simple code to Printer::runOnFunction to iterate over
  MachineBasicBlocks and call X86InstrInfo::print().
lib/Target/X86/X86InstrInfo.def: Make some more instructions with
 implicit defs "Void".  Add more sign/zero extending "move" insns
 (movsx, movzx).
lib/Target/X86/X86RegisterInfo.def: Add EFLAGS as a register.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4707 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Brian Gaeke
2002-11-14 22:32:30 +00:00
parent e555460e4e
commit 6559bb96a9
7 changed files with 139 additions and 80 deletions
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44
lib/Target/X86/Printer.cpp
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@@ -6,7 +6,10 @@
//===----------------------------------------------------------------------===//
#include "X86.h"
#include "X86InstrInfo.h"
#include "llvm/Pass.h"
#include "llvm/Function.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/CodeGen/MachineFunction.h"
#include <iostream>
@@ -21,18 +24,41 @@ namespace {
};
}
bool Printer::runOnFunction(Function &F) {
MachineFunction &MF = MachineFunction::get(&F);
O << "x86 printing not implemented yet!\n";
// This should use the X86InstructionInfo::print method to print assembly
// for each instruction
/// runOnFunction - This uses the X86InstructionInfo::print method
/// to print assembly for each instruction.
bool Printer::runOnFunction (Function & F)
{
static unsigned bbnumber = 0;
MachineFunction & MF = MachineFunction::get (&F);
const MachineInstrInfo & MII = TM.getInstrInfo ();
const X86InstrInfo & x86ii = dynamic_cast <const X86InstrInfo &> (MII);
O << "# x86 printing not implemented yet!\n";
// Print out labels for the function.
O << "\t.globl\t" << F.getName () << "\n";
O << "\t.type\t" << F.getName () << ", @function\n";
O << F.getName () << ":\n";
// Print out code for the function.
for (MachineFunction::const_iterator bb_i = MF.begin (), bb_e = MF.end ();
bb_i != bb_e; ++bb_i)
{
// Print a label for the basic block.
O << ".BB" << bbnumber++ << ":\n";
for (MachineBasicBlock::const_iterator i_i = bb_i->begin (), i_e =
bb_i->end (); i_i != i_e; ++i_i)
{
// Print the assembly for the instruction.
O << "\t";
x86ii.print (*i_i, O);
}
}
// We didn't modify anything.
return false;
}
/// createX86CodePrinterPass - Print out the specified machine code function to
/// the specified stream. This function should work regardless of whether or
/// not the function is in SSA form or not.