Files
cs420/examples/ir4/fibonacci.ir
Chunmyong Park 5395c1e9ba Fix grader
2020-07-02 10:50:47 +00:00

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var i32 @nonce = 0
fun i32 @fibonacci (i32) {
init:
bid: b0
allocations:
block b0:
%b0:p0:i32:n
%b0:i0:u1 = cmp lt %b0:p0:i32 2:i32
br %b0:i0:u1, b1(), b2()
block b1:
ret %b0:p0:i32
block b2:
%b2:i0:i32 = sub %b0:p0:i32 2:i32
%b2:i1:i32 = call @fibonacci:[ret:i32 params:(i32)]*(%b2:i0:i32)
%b2:i2:i32 = sub %b0:p0:i32 1:i32
%b2:i3:i32 = call @fibonacci:[ret:i32 params:(i32)]*(%b2:i2:i32)
%b2:i4:i32 = add %b2:i1:i32 %b2:i3:i32
ret %b2:i4:i32
}
fun i32 @main () {
init:
bid: b0
allocations:
block b0:
%b0:i0:i32 = load @nonce:i32*
%b0:i1:i32 = mod %b0:i0:i32 20:i32
%b0:i2:i32 = call @fibonacci:[ret:i32 params:(i32)]*(%b0:i1:i32)
ret %b0:i2:i32
}