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Adding support for reading integer and float constants.
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require 'test/unit' | ||
require 'llvm' | ||
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include LLVM | ||
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class ValueTests < Test::Unit::TestCase | ||
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def setup | ||
@assembly=<<-EOF | ||
; ModuleID = 'constants.o' | ||
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128" | ||
target triple = "i386-apple-darwin9" | ||
@CONST_PI = constant float 0x400921FA00000000 ; <float*> [#uses=0] | ||
define float @circle_area(float %radius) nounwind { | ||
entry: | ||
%tmp2 = mul float %radius, 0x400921FA00000000 ; <float> [#uses=1] | ||
%tmp4 = mul float %tmp2, %radius ; <float> [#uses=1] | ||
ret float %tmp4 | ||
} | ||
define i32 @add_42(i32 %x) nounwind { | ||
entry: | ||
%tmp2 = add i32 %x, 42 ; <i32> [#uses=1] | ||
ret i32 %tmp2 | ||
} | ||
EOF | ||
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@m = LLVM::Module.read_assembly(@assembly) | ||
end | ||
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def test_check_value_is_constant | ||
add42 = @m.get_function("add_42") | ||
assert(add42) | ||
ins = add42.get_basic_block_list[0].get_instruction_list | ||
add_ins = ins[0] | ||
assert_equal(false,add_ins.get_operand(0).is_constant()) | ||
assert_equal(true,add_ins.get_operand(1).is_constant()) | ||
end | ||
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def test_get_integer_constant_values | ||
add42 = @m.get_function("add_42") | ||
assert(add42) | ||
ins = add42.get_basic_block_list[0].get_instruction_list | ||
add_ins = ins[0] | ||
assert(add_ins.get_operand(1).is_constant()) | ||
assert(add_ins.get_operand(1).is_int_constant()) | ||
assert_equal(42,add_ins.get_operand(1).get_int_constant_value()) | ||
end | ||
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def test_get_float_constant_values | ||
circle_area = @m.get_function("circle_area") | ||
assert(circle_area) | ||
ins = circle_area.get_basic_block_list[0].get_instruction_list | ||
add_ins = ins[0] | ||
assert_equal(false,add_ins.get_operand(0).is_constant()) | ||
assert_equal(true,add_ins.get_operand(1).is_constant()) | ||
assert_equal(true,add_ins.get_operand(1).is_float_constant()) | ||
assert_in_delta(3.14159, add_ins.get_operand(1).get_float_constant_value(), 2 ** -20) | ||
end | ||
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end | ||
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