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#!/usr/bin/env python
# Tests accessing of instruction operands.
from llvm.core import *
m = None
#===----------------------------------------------------------------------===
# implement a test function
test_module = """
define i32 @prod(i32, i32) {
entry:
%2 = mul i32 %0, %1
ret i32 %2
}
define i32 @test_func(i32, i32, i32) {
entry:
%tmp1 = call i32 @prod(i32 %0, i32 %1)
%tmp2 = add i32 %tmp1, %2
%tmp3 = add i32 %tmp2, 1
ret i32 %tmp3
}
"""
class strstream(object):
def __init__(self): pass
def read(self): return test_module
m = Module.from_assembly(strstream())
print "-"*60
print m
print "-"*60
test_func = m.get_function_named("test_func")
prod = m.get_function_named("prod")
#===----------------------------------------------------------------------===
# test operands
print
i1 = test_func.basic_blocks[0].instructions[0]
i2 = test_func.basic_blocks[0].instructions[1]
print "Testing User.operand_count ..",
if i1.operand_count == 3 and i2.operand_count == 2:
print "OK"
else:
print "FAIL"
print "Testing User.operands ..",
c1 = i1.operands[0] is prod
c2 = i1.operands[1] is test_func.args[0]
c3 = i1.operands[2] is test_func.args[1]
c4 = i2.operands[0] is i1
c5 = i2.operands[1] is test_func.args[2]
c6 = len(i1.operands) == 3
c7 = len(i2.operands) == 2
if c1 and c2 and c3 and c5 and c6 and c7:
print "OK"
else:
print "FAIL"
print
#===----------------------------------------------------------------------===
# show test_function
print "Examining test_function `test_test_func':"
idx = 1
for inst in test_func.basic_blocks[0].instructions:
print "Instruction #%d:" % (idx,)
print " operand_count =", inst.operand_count
print " operands:"
oidx = 1
for op in inst.operands:
print " %d: %s" % (oidx, repr(op))
oidx += 1
idx += 1
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