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Add ways to get the value of a ConstantInt

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- property z_ext_value gets the zero-extended value using LLVMConstIntGetZExtValue
- property s_ext_value gets the sign-extended value using LLVMConstIntGetSExtValue
- add test case for both
This commit is contained in:
Wladimir J. van der Laan 2012-09-09 11:57:42 +02:00
commit 41953602bf
3 changed files with 28 additions and 2 deletions
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14
llvm/test_llvmpy.py
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@ -37,7 +37,9 @@ entry:
%tmp1 = call i32 @prod(i32 %0, i32 %1)
%tmp2 = add i32 %tmp1, %2
%tmp3 = add i32 %tmp2, 1
ret i32 %tmp3
%tmp4 = add i32 %tmp3, -1
%tmp5 = add i64 -81985529216486895, 12297829382473034410
ret i32 %tmp4
}
"""
def test_operands(self):
@ -49,10 +51,20 @@ entry:
# test operands
i1 = test_func.basic_blocks[0].instructions[0]
i2 = test_func.basic_blocks[0].instructions[1]
i3 = test_func.basic_blocks[0].instructions[2]
i4 = test_func.basic_blocks[0].instructions[3]
i5 = test_func.basic_blocks[0].instructions[4]
self.assertEqual(i1.operand_count, 3)
self.assertEqual(i2.operand_count, 2)
self.assertEqual(i3.operands[1].z_ext_value, 1)
self.assertEqual(i3.operands[1].s_ext_value, 1)
self.assertEqual(i4.operands[1].z_ext_value, 0xffffffff)
self.assertEqual(i4.operands[1].s_ext_value, -1)
self.assertEqual(i5.operands[0].s_ext_value, -81985529216486895)
self.assertEqual(i5.operands[1].z_ext_value, 12297829382473034410)
self.assert_(i1.operands[-1] is prod)
self.assert_(i1.operands[0] is test_func.args[0])
self.assert_(i1.operands[1] is test_func.args[1])