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#
include
<
tests/doctest.h
>
#
include
<
cmath
>
#
include
<
lpython/python_evaluator.h
>
#
include
<
libasr/codegen/evaluator.h
>
#
include
<
libasr/exception.h
>
#
include
<
libasr/asr.h
>
#
include
<
libasr/codegen/asr_to_llvm.h
>
#
include
<
lpython/pickle.h
>
using
LFortran::
TRY
;
using
LFortran::PythonCompiler;
using
LFortran::CompilerOptions;
TEST_CASE
(
"
llvm 1
"
) {
//
std::cout << "LLVM Version:" << std::endl;
//
LFortran::LLVMEvaluator::print_version_message();
LFortran::LLVMEvaluator e;
e.
add_module
(
R"""(
define i64 @f1()
{
ret i64 4
}
)"""
);
CHECK
(e.
int64fn
(
"
f1
"
) ==
4
);
e.
add_module
(
"
"
);
//
CHECK(e.int64fn("f1") == 4);
e.
add_module
(
R"""(
define i64 @f2()
{
ret i64 5
}
)"""
);
CHECK
(e.
int64fn
(
"
f2
"
) ==
5
);
//
e.add_module("");
//
CHECK(e.int64fn("f2") == 5);
}
TEST_CASE
(
"
llvm 1 fail
"
) {
LFortran::LLVMEvaluator e;
CHECK_THROWS_AS
(e.
add_module
(
R"""(
define i64 @f1()
{
; FAIL: "=x" is incorrect syntax
%1 =x alloca i64
}
)"""
), LFortran::LCompilersException);
CHECK_THROWS_WITH
(e.
add_module
(
R"""(
define i64 @f1()
{
; FAIL: "=x" is incorrect syntax
%1 =x alloca i64
}
)"""
),
"
parse_module(): Invalid LLVM IR
"
);
}
TEST_CASE
(
"
llvm 2
"
) {
LFortran::LLVMEvaluator e;
e.
add_module
(
R"""(
@count = global i64 0
define i64 @f1()
{
store i64 4, i64* @count
%1 = load i64, i64* @count
ret i64 %1
}
)"""
);
CHECK
(e.
int64fn
(
"
f1
"
) ==
4
);
e.
add_module
(
R"""(
@count = external global i64
define i64 @f2()
{
%1 = load i64, i64* @count
ret i64 %1
}
)"""
);
CHECK
(e.
int64fn
(
"
f2
"
) ==
4
);
CHECK_THROWS_AS
(e.
add_module
(
R"""(
define i64 @f3()
{
; FAIL: @count is not defined
%1 = load i64, i64* @count
ret i64 %1
}
)"""
), LFortran::LCompilersException);
}
TEST_CASE
(
"
llvm 3
"
) {
LFortran::LLVMEvaluator e;
e.
add_module
(
R"""(
@count = global i64 5
)"""
);
e.
add_module
(
R"""(
@count = external global i64
define i64 @f1()
{
%1 = load i64, i64* @count
ret i64 %1
}
define void @inc()
{
%1 = load i64, i64* @count
%2 = add i64 %1, 1
store i64 %2, i64* @count
ret void
}
)"""
);
CHECK
(e.
int64fn
(
"
f1
"
) ==
5
);
/*
e.voidfn("inc");
CHECK(e.int64fn("f1") == 6);
e.voidfn("inc");
CHECK(e.int64fn("f1") == 7);
*/
/*
e.add_module(R"""(
@count = external global i64
define void @inc2()
{
%1 = load i64, i64* @count
%2 = add i64 %1, 2
store i64 %2, i64* @count
ret void
}
)""");
CHECK(e.int64fn("f1") == 7);
e.voidfn("inc2");
CHECK(e.int64fn("f1") == 9);
e.voidfn("inc");
CHECK(e.int64fn("f1") == 10);
e.voidfn("inc2");
CHECK(e.int64fn("f1") == 12);
*/
//
Test that we can have another independent LLVMEvaluator and use both at
//
the same time:
/*
LFortran::LLVMEvaluator e2;
e2.add_module(R"""(
@count = global i64 5
define i64 @f1()
{
%1 = load i64, i64* @count
ret i64 %1
}
define void @inc()
{
%1 = load i64, i64* @count
%2 = add i64 %1, 1
store i64 %2, i64* @count
ret void
}
)""");
CHECK(e2.int64fn("f1") == 5);
e2.voidfn("inc");
CHECK(e2.int64fn("f1") == 6);
e2.voidfn("inc");
CHECK(e2.int64fn("f1") == 7);
CHECK(e.int64fn("f1") == 12);
e2.voidfn("inc");
CHECK(e2.int64fn("f1") == 8);
CHECK(e.int64fn("f1") == 12);
e.voidfn("inc");
CHECK(e2.int64fn("f1") == 8);
CHECK(e.int64fn("f1") == 13);
*/
}
TEST_CASE
(
"
llvm 4
"
) {
LFortran::LLVMEvaluator e;
e.
add_module
(
R"""(
@count = global i64 5
define i64 @f1()
{
%1 = load i64, i64* @count
ret i64 %1
}
define void @inc()
{
%1 = load i64, i64* @count
%2 = add i64 %1, 1
store i64 %2, i64* @count
ret void
}
)"""
);
CHECK
(e.
int64fn
(
"
f1
"
) ==
5
);
/*
e.voidfn("inc");
CHECK(e.int64fn("f1") == 6);
e.voidfn("inc");
CHECK(e.int64fn("f1") == 7);
e.add_module(R"""(
declare void @inc()
define void @inc2()
{
call void @inc()
call void @inc()
ret void
}
)""");
CHECK(e.int64fn("f1") == 7);
e.voidfn("inc2");
CHECK(e.int64fn("f1") == 9);
e.voidfn("inc");
CHECK(e.int64fn("f1") == 10);
e.voidfn("inc2");
CHECK(e.int64fn("f1") == 12);
CHECK_THROWS_AS(e.add_module(R"""(
define void @inc2()
{
; FAIL: @inc is not defined
call void @inc()
call void @inc()
ret void
}
)"""), LFortran::LCompilersException);
*/
}
TEST_CASE
(
"
llvm array 1
"
) {
LFortran::LLVMEvaluator e;
e.
add_module
(
R"""(
; Sum the three elements in %a
define i64 @sum3(i64* %a)
{
%a1addr = getelementptr i64, i64* %a, i64 0
%a1 = load i64, i64* %a1addr
%a2addr = getelementptr i64, i64* %a, i64 1
%a2 = load i64, i64* %a2addr
%a3addr = getelementptr i64, i64* %a, i64 2
%a3 = load i64, i64* %a3addr
%tmp = add i64 %a2, %a1
%r = add i64 %a3, %tmp
ret i64 %r
}
define i64 @f()
{
%a = alloca [3 x i64]
%a1 = getelementptr [3 x i64], [3 x i64]* %a, i64 0, i64 0
store i64 1, i64* %a1
%a2 = getelementptr [3 x i64], [3 x i64]* %a, i64 0, i64 1
store i64 2, i64* %a2
%a3 = getelementptr [3 x i64], [3 x i64]* %a, i64 0, i64 2
store i64 3, i64* %a3
%r = call i64 @sum3(i64* %a1)
ret i64 %r
}
)"""
);
CHECK
(e.
int64fn
(
"
f
"
) ==
6
);
}
TEST_CASE
(
"
llvm array 2
"
) {
LFortran::LLVMEvaluator e;
e.
add_module
(
R"""(
%array = type {i64, [3 x i64]}
; Sum the three elements in %a
define i64 @sum3(%array* %a)
{
%a1addr = getelementptr %array, %array* %a, i64 0, i32 1, i64 0
%a1 = load i64, i64* %a1addr
%a2addr = getelementptr %array, %array* %a, i64 0, i32 1, i64 1
%a2 = load i64, i64* %a2addr
%a3addr = getelementptr %array, %array* %a, i64 0, i32 1, i64 2
%a3 = load i64, i64* %a3addr
%tmp = add i64 %a2, %a1
%r = add i64 %a3, %tmp
ret i64 %r
}
define i64 @f()
{
%a = alloca %array
%idx0 = getelementptr %array, %array* %a, i64 0, i32 0
store i64 3, i64* %idx0
%idx1 = getelementptr %array, %array* %a, i64 0, i32 1, i64 0
store i64 1, i64* %idx1
%idx2 = getelementptr %array, %array* %a, i64 0, i32 1, i64 1
store i64 2, i64* %idx2
%idx3 = getelementptr %array, %array* %a, i64 0, i32 1, i64 2
store i64 3, i64* %idx3
%r = call i64 @sum3(%array* %a)
ret i64 %r
}
)"""
);
//
CHECK(e.int64fn("f") == 6);
}
int
f
(
int
a,
int
b) {
return
a+b;
}
TEST_CASE
(
"
llvm callback 0
"
) {
LFortran::LLVMEvaluator e;
std::string addr =
std::to_string
((
int64_t
)f);
e.
add_module
(
R"""(
define i64 @addrcaller(i64 %a, i64 %b)
{
%f = inttoptr i64
)"""
+ addr +
R"""(
to i64 (i64, i64)*
%r = call i64 %f(i64 %a, i64 %b)
ret i64 %r
}
define i64 @f1()
{
%r = call i64 @addrcaller(i64 2, i64 3)
ret i64 %r
}
)"""
);
CHECK
(e.
int64fn
(
"
f1
"
) ==
5
);
}
//
Tests passing the complex struct by reference
TEST_CASE
(
"
llvm complex type
"
) {
LFortran::LLVMEvaluator e;
e.
add_module
(
R"""(
%complex = type { float, float }
define float @sum2(%complex* %a)
{
%a1addr = getelementptr %complex, %complex* %a, i32 0, i32 0
%a1 = load float, float* %a1addr
%a2addr = getelementptr %complex, %complex* %a, i32 0, i32 1
%a2 = load float, float* %a2addr
%r = fadd float %a2, %a1
ret float %r
}
define float @f()
{
%a = alloca %complex
%a1 = getelementptr %complex, %complex* %a, i32 0, i32 0
store float 3.5, float* %a1
%a2 = getelementptr %complex, %complex* %a, i32 0, i32 1
store float 4.5, float* %a2
%r = call float @sum2(%complex* %a)
ret float %r
}
)"""
);
CHECK
(
std::abs
(e.
floatfn
(
"
f
"
) -
8
) <
1e-6
);
}
//
Tests passing the complex struct by value
TEST_CASE
(
"
llvm complex type value
"
) {
LFortran::LLVMEvaluator e;
e.
add_module
(
R"""(
%complex = type { float, float }
define float @sum2(%complex %a_value)
{
%a = alloca %complex
store %complex %a_value, %complex* %a
%a1addr = getelementptr %complex, %complex* %a, i32 0, i32 0
%a1 = load float, float* %a1addr
%a2addr = getelementptr %complex, %complex* %a, i32 0, i32 1
%a2 = load float, float* %a2addr
%r = fadd float %a2, %a1
ret float %r
}
define float @f()
{
%a = alloca %complex
%a1 = getelementptr %complex, %complex* %a, i32 0, i32 0
store float 3.5, float* %a1
%a2 = getelementptr %complex, %complex* %a, i32 0, i32 1
store float 4.5, float* %a2
%ap = load %complex, %complex* %a
%r = call float @sum2(%complex %ap)
ret float %r
}
)"""
);
//
CHECK(std::abs(e.floatfn("f") - 8) < 1e-6);
}
//
Tests passing boolean by reference
TEST_CASE
(
"
llvm boolean type
"
) {
LFortran::LLVMEvaluator e;
e.
add_module
(
R"""(
define i1 @and_func(i1* %p, i1* %q)
{
%pval = load i1, i1* %p
%qval = load i1, i1* %q
%r = and i1 %pval, %qval
ret i1 %r
}
define i1 @b()
{
%p = alloca i1
%q = alloca i1
store i1 1, i1* %p
store i1 0, i1* %q
%r = call i1 @and_func(i1* %p, i1* %q)
ret i1 %r
}
)"""
);
CHECK
(e.
boolfn
(
"
b
"
) ==
false
);
}
//
Tests passing boolean by value
TEST_CASE
(
"
llvm boolean type
"
) {
LFortran::LLVMEvaluator e;
e.
add_module
(
R"""(
define i1 @and_func(i1 %p, i1 %q)
{
%r = and i1 %p, %q
ret i1 %r
}
define i1 @b()
{
%p = alloca i1
%q = alloca i1
store i1 1, i1* %p
store i1 0, i1* %q
%pval = load i1, i1* %p
%qval = load i1, i1* %q
%r = call i1 @and_func(i1 %pval, i1 %qval)
ret i1 %r
}
)"""
);
CHECK
(e.
boolfn
(
"
b
"
) ==
false
);
}
//
Tests pointers
TEST_CASE
(
"
llvm pointers 1
"
) {
LFortran::LLVMEvaluator e;
e.
add_module
(
R"""(
@r = global i64 0
define i64 @f()
{
store i64 8, i64* @r
; Dereferences the pointer %r
;%rval = load i64, i64* @r
%raddr = ptrtoint i64* @r to i64
ret i64 %raddr
}
)"""
);
int64_t
r = e.
int64fn
(
"
f
"
);
CHECK
(r !=
8
);
int64_t
*p = (
int64_t
*)r;
CHECK
(*p ==
8
);
}
TEST_CASE
(
"
llvm pointers 2
"
) {
LFortran::LLVMEvaluator e;
e.
add_module
(
R"""(
@r = global float 0.0
define i64 @f()
{
store float 8.0, float* @r
%raddr = ptrtoint float* @r to i64
ret i64 %raddr
}
)"""
);
int64_t
r = e.
int64fn
(
"
f
"
);
float
*p = (
float
*)r;
CHECK
(
std::abs
(*p -
8
) <
1e-6
);
}
TEST_CASE
(
"
llvm pointers 3
"
) {
LFortran::LLVMEvaluator e;
e.
add_module
(
R"""(
; Takes a variable and returns a pointer to it
define i64 @pointer_reference(float* %var)
{
%ret = ptrtoint float* %var to i64
ret i64 %ret
}
; Takes a pointer and returns the value of what it points to
define float @pointer_dereference(i64 %p)
{
%p2 = inttoptr i64 %p to float*
%ret = load float, float* %p2
ret float %ret
}
define float @f()
{
%var = alloca float
store float 8.0, float* %var
%pointer_val = call i64 @pointer_reference(float* %var)
; Save the pointer to a variable
%pointer_var = alloca i64
store i64 %pointer_val, i64* %pointer_var
; Extract value out of the pointer %pointer_var
%pointer_val2 = load i64, i64* %pointer_var
%ret = call float @pointer_dereference(i64 %pointer_val2)
ret float %ret
}
)"""
);
float
r = e.
floatfn
(
"
f
"
);
CHECK
(
std::abs
(r -
8
) <
1e-6
);
}
TEST_CASE
(
"
llvm pointers 4
"
) {
LFortran::LLVMEvaluator e;
e.
add_module
(
R"""(
; Takes a variable and returns a pointer to it
define float* @pointer_reference(float* %var)
{
ret float* %var
}
define float @pointer_dereference(float* %var)
{
%ret = load float, float* %var
ret float %ret
}
define float @f()
{
%var = alloca float
store float 8.0, float* %var
%pointer_val = call float* @pointer_reference(float* %var)
; Save the pointer to a variable
%pointer_var = alloca float*
store float* %pointer_val, float** %pointer_var
; Extract value out of the pointer %pointer_var
%pointer_val2 = load float*, float** %pointer_var
%ret = call float @pointer_dereference(float* %pointer_val2)
ret float %ret
}
)"""
);
float
r = e.
floatfn
(
"
f
"
);
CHECK
(
std::abs
(r -
8
) <
1e-6
);
}
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