#37527

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Build # #37527

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web-flow

Commit Message

make `IRShow.method_name` inferrable (#49607)

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18 of 18 new or added lines in 3 files covered. (100.0%)

68710 of 81829 relevant lines covered (83.97%)

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75.17

/base/ryu/fixed.jl

function writefixed(buf, pos, v::T,
    precision=-1, plus=false, space=false, hash=false,
    decchar=UInt8('.'), trimtrailingzeros=false) where {T <: Base.IEEEFloat}
    @assert 0 < pos <= length(buf)
    startpos = pos
    x = Float64(v)
    pos = append_sign(x, plus, space, buf, pos)

    # special cases
    if x == 0
        buf[pos] = UInt8('0')
        pos += 1
        if precision > 0 && !trimtrailingzeros
            buf[pos] = decchar
            pos += 1
            for _ = 1:precision
                buf[pos] = UInt8('0')
                pos += 1
            end
        elseif hash
            buf[pos] = decchar
            pos += 1
        end
        return pos
    elseif isnan(x)
        buf[pos] = UInt8('N')
        buf[pos + 1] = UInt8('a')
        buf[pos + 2] = UInt8('N')
        return pos + 3
    elseif !isfinite(x)
        buf[pos] = UInt8('I')
        buf[pos + 1] = UInt8('n')
        buf[pos + 2] = UInt8('f')
        return pos + 3
    end

    bits = Core.bitcast(UInt64, x)
    mant = bits & MANTISSA_MASK
    exp = Int((bits >> 52) & EXP_MASK)

    if exp == 0
        e2 = 1 - 1023 - 52
        m2 = mant
    else
        e2 = exp - 1023 - 52
        m2 = (Int64(1) << 52) | mant
    end
    nonzero = false
    if e2 >= -52
        idx = e2 < 0 ? 0 : indexforexp(e2)
        p10bits = pow10bitsforindex(idx)
        len = lengthforindex(idx)
        i = len - 1
        while i >= 0
            j = p10bits - e2
            #=@inbounds=# mula, mulb, mulc = POW10_SPLIT[POW10_OFFSET[idx + 1] + i + 1]
            digits = mulshiftmod1e9(m2 << 8, mula, mulb, mulc, j + 8)
            if nonzero
                pos = append_nine_digits(digits, buf, pos)
            elseif digits != 0
                olength = decimallength(digits)
                pos = append_n_digits(olength, digits, buf, pos)
                nonzero = true
            end
            i -= 1
        end
    end
    if !nonzero
        buf[pos] = UInt8('0')
        pos += 1
    end
    hasfractional = false
    if precision > 0 || hash
        buf[pos] = decchar
        pos += 1
        hasfractional = true
    end
    if e2 < 0
        idx = div(-e2, 16)
        blocks = div(precision, 9) + 1
        roundUp = 0
        i = 0
        if blocks <= MIN_BLOCK_2[idx + 1]
            i = blocks
            for _ = 1:precision
                buf[pos] = UInt8('0')
                pos += 1
            end
        elseif i < MIN_BLOCK_2[idx + 1]
            i = MIN_BLOCK_2[idx + 1]
            for _ = 1:(9 * i)
                buf[pos] = UInt8('0')
                pos += 1
            end
        end
        while i < blocks
            j = 120 + (-e2 - 16 * idx)
            p = POW10_OFFSET_2[idx + 1] + UInt32(i) - MIN_BLOCK_2[idx + 1]
            if p >= POW10_OFFSET_2[idx + 2]
                for _ = 1:(precision - 9 * i)
                    buf[pos] = UInt8('0')
                    pos += 1
                end
                break
            end
            #=@inbounds=# mula, mulb, mulc = POW10_SPLIT_2[p + 1]
            digits = mulshiftmod1e9(m2 << 8, mula, mulb, mulc, j + 8)
            if i < blocks - 1
                pos = append_nine_digits(digits, buf, pos)
            else
                maximum = precision - 9 * i
                lastDigit = 0
                k = 0
                while k < 9 - maximum
                    # global digits, lastDigit, k
                    lastDigit = digits % 10
                    digits = div(digits, 10)
                    k += 1
                end
                if lastDigit != 5
                    roundUp = lastDigit > 5
                else
                    requiredTwos = -e2 - precision - 1
                    trailingZeros = requiredTwos <= 0 || (requiredTwos < 60 && pow2(m2, requiredTwos))
                    roundUp = trailingZeros ? 2 : 1
                end
                if maximum > 0
                    pos = append_c_digits(maximum, digits, buf, pos)
                end
                break
            end
            i += 1
        end
        if roundUp != 0
            roundPos = pos
            dotPos = 1
            while true
                roundPos -= 1
                if roundPos == (startpos - 1) || (buf[roundPos] == UInt8('-')) || (plus && buf[roundPos] == UInt8('+')) || (space && buf[roundPos] == UInt8(' '))
                    buf[roundPos + 1] = UInt8('1')
                    if dotPos > 1
                        buf[dotPos] = UInt8('0')
                        buf[dotPos + 1] = decchar
                        hasfractional = true
                    end
                    buf[pos] = UInt8('0')
                    pos += 1
                    break
                end
                c = roundPos > 0 ? buf[roundPos] : 0x00
                if c == decchar
                    dotPos = roundPos
                    continue
                elseif c == UInt8('9')
                    buf[roundPos] = UInt8('0')
                    roundUp = 1
                    continue
                else
                    if roundUp == 2 && UInt8(c) % 2 == 0
                        break
                    end
                    buf[roundPos] = c + 1
                    break
                end
            end
        end
    else
        for _ = 1:precision
            buf[pos] = UInt8('0')
            pos += 1
        end
    end
    if trimtrailingzeros && hasfractional
        while buf[pos - 1] == UInt8('0')
            pos -= 1
        end
        if buf[pos - 1] == decchar && !hash
            pos -= 1
        end
    end
    return pos
end

1	function writefixed(buf, pos, v::T,	1,395✔
2	precision=-1, plus=false, space=false, hash=false,
3	decchar=UInt8('.'), trimtrailingzeros=false) where {T <: Base.IEEEFloat}
4	@assert 0 < pos <= length(buf)	2,529✔
5	startpos = pos	×
6	x = Float64(v)	×
7	pos = append_sign(x, plus, space, buf, pos)	2,572✔
8
9	# special cases
10	if x == 0	1,304✔
11	buf[pos] = UInt8('0')	90✔
12	pos += 1	90✔
13	if precision > 0 && !trimtrailingzeros	90✔
14	buf[pos] = decchar	87✔
15	pos += 1	87✔
16	for _ = 1:precision	174✔
17	buf[pos] = UInt8('0')	168✔
18	pos += 1	168✔
19	end	249✔
20	elseif hash	3✔
21	buf[pos] = decchar	×
22	pos += 1	×
23	end
24	return pos	90✔
25	elseif isnan(x)	1,214✔
26	buf[pos] = UInt8('N')	5✔
27	buf[pos + 1] = UInt8('a')	5✔
28	buf[pos + 2] = UInt8('N')	5✔
29	return pos + 3	5✔
30	elseif !isfinite(x)	1,209✔
31	buf[pos] = UInt8('I')	7✔
32	buf[pos + 1] = UInt8('n')	7✔
33	buf[pos + 2] = UInt8('f')	7✔
34	return pos + 3	7✔
35	end
36
37	bits = Core.bitcast(UInt64, x)	1,202✔
38	mant = bits & MANTISSA_MASK	1,202✔
39	exp = Int((bits >> 52) & EXP_MASK)	1,202✔
40
41	if exp == 0	1,202✔
42	e2 = 1 - 1023 - 52	×
43	m2 = mant	×
44	else
45	e2 = exp - 1023 - 52	1,202✔
46	m2 = (Int64(1) << 52) \| mant	1,202✔
47	end
48	nonzero = false	1,202✔
49	if e2 >= -52	1,202✔
50	idx = e2 < 0 ? 0 : indexforexp(e2)	1,029✔
51	p10bits = pow10bitsforindex(idx)	1,025✔
52	len = lengthforindex(idx)	1,025✔
53	i = len - 1	1,025✔
54	while i >= 0	3,130✔
55	j = p10bits - e2	2,105✔
56	#=@inbounds=# mula, mulb, mulc = POW10_SPLIT[POW10_OFFSET[idx + 1] + i + 1]	2,105✔
57	digits = mulshiftmod1e9(m2 << 8, mula, mulb, mulc, j + 8)	2,105✔
58	if nonzero	2,105✔
59	pos = append_nine_digits(digits, buf, pos)	56✔
60	elseif digits != 0	2,049✔
61	olength = decimallength(digits)	2,050✔
62	pos = append_n_digits(olength, digits, buf, pos)	1,025✔
63	nonzero = true	×
64	end
65	i -= 1	2,105✔
66	end	2,105✔
67	end
68	if !nonzero	1,202✔
69	buf[pos] = UInt8('0')	177✔
70	pos += 1	177✔
71	end
72	hasfractional = false	1,202✔
73	if precision > 0 \|\| hash	1,243✔
74	buf[pos] = decchar	1,187✔
75	pos += 1	1,187✔
76	hasfractional = true	×
77	end
78	if e2 < 0	1,202✔
79	idx = div(-e2, 16)	1,198✔
80	blocks = div(precision, 9) + 1	1,198✔
81	roundUp = 0	×
82	i = 0	×
83	if blocks <= MIN_BLOCK_2[idx + 1]	1,198✔
84	i = blocks	×
85	for _ = 1:precision	×
86	buf[pos] = UInt8('0')	×
87	pos += 1	×
88	end	×
89	elseif i < MIN_BLOCK_2[idx + 1]	1,198✔
90	i = MIN_BLOCK_2[idx + 1]	×
91	for _ = 1:(9 * i)	×
92	buf[pos] = UInt8('0')	×
93	pos += 1	×
94	end	×
95	end
96	while i < blocks	1,213✔
97	j = 120 + (-e2 - 16 * idx)	1,213✔
98	p = POW10_OFFSET_2[idx + 1] + UInt32(i) - MIN_BLOCK_2[idx + 1]	1,213✔
99	if p >= POW10_OFFSET_2[idx + 2]	1,213✔
100	for _ = 1:(precision - 9 * i)	×
101	buf[pos] = UInt8('0')	×
102	pos += 1	×
103	end	×
104	break	×
105	end
106	#=@inbounds=# mula, mulb, mulc = POW10_SPLIT_2[p + 1]	1,213✔
107	digits = mulshiftmod1e9(m2 << 8, mula, mulb, mulc, j + 8)	1,213✔
108	if i < blocks - 1	1,213✔
109	pos = append_nine_digits(digits, buf, pos)	15✔
110	else
111	maximum = precision - 9 * i	1,198✔
112	lastDigit = 0	×
113	k = 0	×
114	while k < 9 - maximum	9,703✔
115	# global digits, lastDigit, k
116	lastDigit = digits % 10	15,812✔
117	digits = div(digits, 10)	15,812✔
118	k += 1	8,505✔
119	end	8,505✔
120	if lastDigit != 5	2,396✔
121	roundUp = lastDigit > 5	2,206✔
122	else
123	requiredTwos = -e2 - precision - 1	95✔
124	trailingZeros = requiredTwos <= 0 \|\| (requiredTwos < 60 && pow2(m2, requiredTwos))	190✔
125	roundUp = trailingZeros ? 2 : 1	95✔
126	end
127	if maximum > 0	1,198✔
128	pos = append_c_digits(maximum, digits, buf, pos)	2,298✔
129	end
130	break	1,198✔
131	end
132	i += 1	15✔
133	end	15✔
134	if roundUp != 0	1,293✔
135	roundPos = pos	×
136	dotPos = 1	×
137	while true	578✔
138	roundPos -= 1	578✔
139	if roundPos == (startpos - 1) \|\| (buf[roundPos] == UInt8('-')) \|\| (plus && buf[roundPos] == UInt8('+')) \|\| (space && buf[roundPos] == UInt8(' '))	1,153✔
140	buf[roundPos + 1] = UInt8('1')	5✔
141	if dotPos > 1	5✔
142	buf[dotPos] = UInt8('0')	5✔
143	buf[dotPos + 1] = decchar	5✔
144	hasfractional = true	×
145	end
146	buf[pos] = UInt8('0')	5✔
147	pos += 1	5✔
148	break	×
149	end
150	c = roundPos > 0 ? buf[roundPos] : 0x00	573✔
151	if c == decchar	573✔
152	dotPos = roundPos	×
153	continue	19✔
154	elseif c == UInt8('9')	554✔
155	buf[roundPos] = UInt8('0')	74✔
156	roundUp = 1	×
157	continue	74✔
158	else
159	if roundUp == 2 && UInt8(c) % 2 == 0	615✔
160	break	×
161	end
162	buf[roundPos] = c + 1	480✔
163	break	480✔
164	end
165	end	1,291✔
166	end
167	else
168	for _ = 1:precision	4✔
169	buf[pos] = UInt8('0')	×
170	pos += 1	×
171	end	×
172	end
173	if trimtrailingzeros && hasfractional	1,202✔
174	while buf[pos - 1] == UInt8('0')	97✔
175	pos -= 1	67✔
176	end	67✔
177	if buf[pos - 1] == decchar && !hash	30✔
178	pos -= 1	13✔
179	end
180	end
181	return pos	1,202✔
182	end

JuliaLang / julia / #37527

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