include/llvm/CodeGen/MachineInstrBuilder.h: Add addClobber() inline
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
diff --git a/lib/Target/X86/X86AsmPrinter.cpp b/lib/Target/X86/X86AsmPrinter.cpp
index b320e2c..fdb444e 100644
--- a/lib/Target/X86/X86AsmPrinter.cpp
+++ b/lib/Target/X86/X86AsmPrinter.cpp
@@ -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 @@
};
}
-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.