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added functionality to llvm.mc.Instr to print itself

Browse source 
uses binding of printInst on MCInstPrinter for printing
instruction.

also fixed a bug in llvm.mc.Disassembler.decode: idx should
start at zero, and we should pass code.getBase() + idx to
getInstruction. idx must start at zero because the while loop
compares it against code.getExtent() which returns only the
length of bs.
This commit is contained in:
anthony cantor 2013-08-18 16:39:26 -06:00 • committed by Siu Kwan Lam
commit 8dbfc377ad
4 changed files with 50 additions and 18 deletions
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16
test/example-disassemble.py
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@ -9,17 +9,19 @@ if llvm.version >= (3, 4):
llvm.target.initialize_all()
def print_instructions(dasm, bs):
for (offset, inst) in dasm.decode(bs, 0):
print("print instructions")
for (addr, inst) in dasm.decode(bs, 0x4000):
if inst is None:
print("\t%r=>(bad): 0, []" % (offset))
print("\t0x%x => (bad)" % (addr))
else:
ops = ", ".join(map(lambda op: repr(op), inst.operands()))
if isinstance(inst, mc.BadInstr):
print("\t%r=>(bad)%r: %r" % (offset, inst, len(inst)))
print("\t0x%x (bad) ops = %s" % (addr, ops))
else:
print("\t%r=>%r: %r" % (offset, inst, len(inst)))
for op in inst.operands():
print("\t\t%s" % repr(op))
print("\t0x%x ops = %s" % (addr, ops))
for line in str(inst).split("\n"):
print("\t%s" % (line))
x86 = TargetMachine.x86()