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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 13:18:25 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 13:18:25 +0000 |
commit | 109be507377fe7f6e8819ac94041d3fdcdf6fd2f (patch) | |
tree | 2806a689f8fab4a2ec9fc949830ef270a91d667d /test/64bit.go | |
parent | Initial commit. (diff) | |
download | golang-1.19-109be507377fe7f6e8819ac94041d3fdcdf6fd2f.tar.xz golang-1.19-109be507377fe7f6e8819ac94041d3fdcdf6fd2f.zip |
Adding upstream version 1.19.8.upstream/1.19.8upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'test/64bit.go')
-rw-r--r-- | test/64bit.go | 728 |
1 files changed, 728 insertions, 0 deletions
diff --git a/test/64bit.go b/test/64bit.go new file mode 100644 index 0000000..d99d8e8 --- /dev/null +++ b/test/64bit.go @@ -0,0 +1,728 @@ +// runoutput + +// Copyright 2009 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Generate test of 64-bit arithmetic. +// Most synthesized routines have different cases for +// constants vs variables and even the generated code has +// different cases for large and small constants, +// so try a good range of inputs. + +package main + +import ( + "bufio" + "fmt" + "os" +) + +var bout *bufio.Writer + +// 64-bit math without using 64-bit numbers, +// so that we can generate the test program even +// if the compiler has buggy or missing 64-bit support. + +type Uint64 struct { + hi uint32 + lo uint32 +} + +type Int64 struct { + hi int32 + lo uint32 +} + +func (a Uint64) Int64() (c Int64) { + c.hi = int32(a.hi) + c.lo = a.lo + return +} + +func (a Uint64) Cmp(b Uint64) int { + switch { + case a.hi < b.hi: + return -1 + case a.hi > b.hi: + return 1 + case a.lo < b.lo: + return -1 + case a.lo > b.lo: + return 1 + } + return 0 +} + +func (a Uint64) LeftShift(b uint) (c Uint64) { + switch { + case b >= 64: + c.hi = 0 + c.lo = 0 + case b >= 32: + c.hi = a.lo << (b - 32) + c.lo = 0 + default: + c.hi = a.hi<<b | a.lo>>(32-b) + c.lo = a.lo << b + } + return +} + +func (a Uint64) RightShift(b uint) (c Uint64) { + switch { + case b >= 64: + c.hi = 0 + c.lo = a.hi + case b >= 32: + c.hi = 0 + c.lo = a.hi >> (b - 32) + default: + c.hi = a.hi >> b + c.lo = a.hi<<(32-b) | a.lo>>b + } + return +} + +func (a Uint64) LeftShift64(b Uint64) (c Uint64) { + if b.hi != 0 || b.lo >= 64 { + return + } + return a.LeftShift(uint(b.lo)) +} + +func (a Uint64) RightShift64(b Uint64) (c Uint64) { + if b.hi != 0 || b.lo >= 64 { + return + } + return a.RightShift(uint(b.lo)) +} + +func (a Uint64) Plus(b Uint64) (c Uint64) { + var carry uint32 + if c.lo = a.lo + b.lo; c.lo < a.lo { + carry = 1 + } + c.hi = a.hi + b.hi + carry + return +} + +func (a Uint64) Minus(b Uint64) (c Uint64) { + var borrow uint32 + if c.lo = a.lo - b.lo; c.lo > a.lo { + borrow = 1 + } + c.hi = a.hi - b.hi - borrow + return +} + +func (a Uint64) Neg() (c Uint64) { + var zero Uint64 + return zero.Minus(a) +} + +func (a Uint64) Com() (c Uint64) { + c.hi = ^a.hi + c.lo = ^a.lo + return +} + +func (a Uint64) Len() int { + switch { + case a.hi != 0: + for i := 31; i >= 0; i-- { + if a.hi&(1<<uint(i)) != 0 { + return i + 1 + 32 + } + } + case a.lo != 0: + for i := 31; i >= 0; i-- { + if a.lo&(1<<uint(i)) != 0 { + return i + 1 + } + } + } + return 0 +} + +func (a Uint64) HasBit(b uint) bool { + switch { + case b >= 64: + return false + case b >= 32: + return a.hi&(1<<(b-32)) != 0 + } + return a.lo&(1<<b) != 0 +} + +func (a Uint64) Times(b Uint64) (c Uint64) { + for i := uint(0); i < 64; i++ { + if b.HasBit(i) { + c = c.Plus(a.LeftShift(i)) + } + } + return +} + +func (a Uint64) DivMod(b Uint64) (quo, rem Uint64) { + n := a.Len() - b.Len() + if n >= 0 { + b = b.LeftShift(uint(n)) + for i := 0; i <= n; i++ { + quo = quo.LeftShift(1) + if b.Cmp(a) <= 0 { // b <= a + quo.lo |= 1 + a = a.Minus(b) + } + b = b.RightShift(1) + } + } + rem = a + return +} + +func (a Uint64) And(b Uint64) (c Uint64) { + c.hi = a.hi & b.hi + c.lo = a.lo & b.lo + return +} + +func (a Uint64) AndNot(b Uint64) (c Uint64) { + c.hi = a.hi &^ b.hi + c.lo = a.lo &^ b.lo + return +} + +func (a Uint64) Or(b Uint64) (c Uint64) { + c.hi = a.hi | b.hi + c.lo = a.lo | b.lo + return +} + +func (a Uint64) Xor(b Uint64) (c Uint64) { + c.hi = a.hi ^ b.hi + c.lo = a.lo ^ b.lo + return +} + +func (a Uint64) String() string { return fmt.Sprintf("%#x%08x", a.hi, a.lo) } + +func (a Int64) Uint64() (c Uint64) { + c.hi = uint32(a.hi) + c.lo = a.lo + return +} + +func (a Int64) Cmp(b Int64) int { + // Same body as Uint64.Cmp, + // but behaves differently + // because hi is uint32 not int32. + switch { + case a.hi < b.hi: + return -1 + case a.hi > b.hi: + return 1 + case a.lo < b.lo: + return -1 + case a.lo > b.lo: + return 1 + } + return 0 +} + +func (a Int64) LeftShift(b uint) (c Int64) { return a.Uint64().LeftShift(b).Int64() } + +func (a Int64) RightShift(b uint) (c Int64) { + switch { + case b >= 64: + c.hi = a.hi >> 31 // sign extend + c.lo = uint32(c.hi) + case b >= 32: + c.hi = a.hi >> 31 // sign extend + c.lo = uint32(a.hi >> (b - 32)) + default: + c.hi = a.hi >> b + c.lo = uint32(a.hi<<(32-b)) | a.lo>>b + } + return +} + +func (a Int64) LeftShift64(b Uint64) (c Int64) { + if b.hi != 0 || b.lo >= 64 { + return + } + return a.LeftShift(uint(b.lo)) +} + +func (a Int64) RightShift64(b Uint64) (c Int64) { + if b.hi != 0 || b.lo >= 64 { + return a.RightShift(64) + } + return a.RightShift(uint(b.lo)) +} + +func (a Int64) Plus(b Int64) (c Int64) { return a.Uint64().Plus(b.Uint64()).Int64() } + +func (a Int64) Minus(b Int64) (c Int64) { return a.Uint64().Minus(b.Uint64()).Int64() } + +func (a Int64) Neg() (c Int64) { return a.Uint64().Neg().Int64() } + +func (a Int64) Com() (c Int64) { return a.Uint64().Com().Int64() } + +func (a Int64) Times(b Int64) (c Int64) { return a.Uint64().Times(b.Uint64()).Int64() } + +func (a Int64) DivMod(b Int64) (quo Int64, rem Int64) { + var zero Int64 + + quoSign := +1 + remSign := +1 + if a.Cmp(zero) < 0 { + quoSign = -1 + remSign = -1 + a = a.Neg() + } + if b.Cmp(zero) < 0 { + quoSign = -quoSign + b = b.Neg() + } + + q, r := a.Uint64().DivMod(b.Uint64()) + quo = q.Int64() + rem = r.Int64() + + if quoSign < 0 { + quo = quo.Neg() + } + if remSign < 0 { + rem = rem.Neg() + } + return +} + +func (a Int64) And(b Int64) (c Int64) { return a.Uint64().And(b.Uint64()).Int64() } + +func (a Int64) AndNot(b Int64) (c Int64) { return a.Uint64().AndNot(b.Uint64()).Int64() } + +func (a Int64) Or(b Int64) (c Int64) { return a.Uint64().Or(b.Uint64()).Int64() } + +func (a Int64) Xor(b Int64) (c Int64) { return a.Uint64().Xor(b.Uint64()).Int64() } + +func (a Int64) String() string { + if a.hi < 0 { + return fmt.Sprintf("-%s", a.Neg().Uint64()) + } + return a.Uint64().String() +} + +var int64Values = []Int64{ + Int64{0, 0}, + Int64{0, 1}, + Int64{0, 2}, + Int64{0, 3}, + Int64{0, 100}, + Int64{0, 10001}, + Int64{0, 1<<31 - 1}, + Int64{0, 1 << 31}, + Int64{0, 1<<31 + 1}, + Int64{0, 1<<32 - 1<<30}, + Int64{0, 1<<32 - 1}, + Int64{1, 0}, + Int64{1, 1}, + Int64{2, 0}, + Int64{1<<31 - 1, 1<<32 - 10000}, + Int64{1<<31 - 1, 1<<32 - 1}, + Int64{0x789abcde, 0xf0123456}, + + Int64{-1, 1<<32 - 1}, + Int64{-1, 1<<32 - 2}, + Int64{-1, 1<<32 - 3}, + Int64{-1, 1<<32 - 100}, + Int64{-1, 1<<32 - 10001}, + Int64{-1, 1<<32 - (1<<31 - 1)}, + Int64{-1, 1<<32 - 1<<31}, + Int64{-1, 1<<32 - (1<<31 + 1)}, + Int64{-1, 1<<32 - (1<<32 - 1<<30)}, + Int64{-1, 0}, + Int64{-1, 1}, + Int64{-2, 0}, + Int64{-(1 << 31), 10000}, + Int64{-(1 << 31), 1}, + Int64{-(1 << 31), 0}, + Int64{-0x789abcde, 0xf0123456}, +} + +var uint64Values = []Uint64{ + Uint64{0, 0}, + Uint64{0, 1}, + Uint64{0, 2}, + Uint64{0, 3}, + Uint64{0, 100}, + Uint64{0, 10001}, + Uint64{0, 1<<31 - 1}, + Uint64{0, 1 << 31}, + Uint64{0, 1<<31 + 1}, + Uint64{0, 1<<32 - 1<<30}, + Uint64{0, 1<<32 - 1}, + Uint64{1, 0}, + Uint64{1, 1}, + Uint64{2, 0}, + Uint64{1<<31 - 1, 1<<32 - 10000}, + Uint64{1<<31 - 1, 1<<32 - 1}, + Uint64{1<<32 - 1<<30, 0}, + Uint64{1<<32 - 1, 0}, + Uint64{1<<32 - 1, 1<<32 - 100}, + Uint64{1<<32 - 1, 1<<32 - 1}, + Uint64{0x789abcde, 0xf0123456}, + Uint64{0xfedcba98, 0x76543210}, +} + +var shiftValues = []Uint64{ + Uint64{0, 0}, + Uint64{0, 1}, + Uint64{0, 2}, + Uint64{0, 3}, + Uint64{0, 15}, + Uint64{0, 16}, + Uint64{0, 17}, + Uint64{0, 31}, + Uint64{0, 32}, + Uint64{0, 33}, + Uint64{0, 61}, + Uint64{0, 62}, + Uint64{0, 63}, + Uint64{0, 64}, + Uint64{0, 65}, + Uint64{0, 1<<32 - 1}, + Uint64{1, 0}, + Uint64{1, 1}, + Uint64{1 << 28, 0}, + Uint64{1 << 31, 0}, + Uint64{1<<32 - 1, 0}, + Uint64{1<<32 - 1, 1<<32 - 1}, +} + +var ntest = 0 + +// Part 1 is tests of variable operations; generic functions +// called by repetitive code. Could make a table but not worth it. + +const prolog = "\n" + + "package main\n" + + "\n" + + "import \"os\"\n" + + "\n" + + "var ok = true\n" + + "\n" + + "func testInt64Unary(a, plus, xor, minus int64) {\n" + + " if n, op, want := +a, `+`, plus; n != want { ok=false; println(`int64`, op, a, `=`, n, `should be`, want); }\n" + + " if n, op, want := ^a, `^`, xor; n != want { ok=false; println(`int64`, op, a, `=`, n, `should be`, want); }\n" + + " if n, op, want := -a, `-`, minus; n != want { ok=false; println(`int64`, op, a, `=`, n, `should be`, want); }\n" + + "}\n" + + "\n" + + "func testInt64Binary(a, b, add, sub, mul, div, mod, and, or, xor, andnot int64, dodiv bool) {\n" + + " if n, op, want := a + b, `+`, add; n != want { ok=false; println(`int64`, a, op, b, `=`, n, `should be`, want); }\n" + + " if n, op, want := a - b, `-`, sub; n != want { ok=false; println(`int64`, a, op, b, `=`, n, `should be`, want); }\n" + + " if n, op, want := a * b, `*`, mul; n != want { ok=false; println(`int64`, a, op, b, `=`, n, `should be`, want); }\n" + + " if dodiv {\n" + + " if n, op, want := a / b, `/`, div; n != want { ok=false; println(`int64`, a, op, b, `=`, n, `should be`, want); }\n" + + " if n, op, want := a % b, `%`, mod; n != want { ok=false; println(`int64`, a, op, b, `=`, n, `should be`, want); }\n" + + " }\n" + + " if n, op, want := a & b, `&`, and; n != want { ok=false; println(`int64`, a, op, b, `=`, n, `should be`, want); }\n" + + " if n, op, want := a | b, `|`, or; n != want { ok=false; println(`int64`, a, op, b, `=`, n, `should be`, want); }\n" + + " if n, op, want := a ^ b, `^`, xor; n != want { ok=false; println(`int64`, a, op, b, `=`, n, `should be`, want); }\n" + + " if n, op, want := a &^ b, `&^`, andnot; n != want { ok=false; println(`int64`, a, op, b, `=`, n, `should be`, want); }\n" + + "}\n" + + "\n" + + "func testInt64Shift(a int64, b uint64, left, right int64) {\n" + + " if n, op, s, want := a << b, `<<`, b, left; n != want { ok=false; println(`int64`, a, op, `uint64`, s, `=`, n, `should be`, want); }\n" + + " if n, op, s, want := a >> b, `>>`, b, right; n != want { ok=false; println(`int64`, a, op, `uint64`, s, `=`, n, `should be`, want); }\n" + + " if uint64(uint(b)) == b {\n" + + " b := uint(b);\n" + + " if n, op, s, want := a << b, `<<`, b, left; n != want { ok=false; println(`int64`, a, op, `uint`, s, `=`, n, `should be`, want); }\n" + + " if n, op, s, want := a >> b, `>>`, b, right; n != want { ok=false; println(`int64`, a, op, `uint`, s, `=`, n, `should be`, want); }\n" + + " }\n" + + " if uint64(uint32(b)) == b {\n" + + " b := uint32(b);\n" + + " if n, op, s, want := a << b, `<<`, b, left; n != want { ok=false; println(`int64`, a, op, `uint32`, s, `=`, n, `should be`, want); }\n" + + " if n, op, s, want := a >> b, `>>`, b, right; n != want { ok=false; println(`int64`, a, op, `uint32`, s, `=`, n, `should be`, want); }\n" + + " }\n" + + " if uint64(uint16(b)) == b {\n" + + " b := uint16(b);\n" + + " if n, op, s, want := a << b, `<<`, b, left; n != want { ok=false; println(`int64`, a, op, `uint16`, s, `=`, n, `should be`, want); }\n" + + " if n, op, s, want := a >> b, `>>`, b, right; n != want { ok=false; println(`int64`, a, op, `uint16`, s, `=`, n, `should be`, want); }\n" + + " }\n" + + " if uint64(uint8(b)) == b {\n" + + " b := uint8(b);\n" + + " if n, op, s, want := a << b, `<<`, b, left; n != want { ok=false; println(`int64`, a, op, `uint8`, s, `=`, n, `should be`, want); }\n" + + " if n, op, s, want := a >> b, `>>`, b, right; n != want { ok=false; println(`int64`, a, op, `uint8`, s, `=`, n, `should be`, want); }\n" + + " }\n" + + "}\n" + + "\n" + + "func testUint64Unary(a, plus, xor, minus uint64) {\n" + + " if n, op, want := +a, `+`, plus; n != want { ok=false; println(`uint64`, op, a, `=`, n, `should be`, want); }\n" + + " if n, op, want := ^a, `^`, xor; n != want { ok=false; println(`uint64`, op, a, `=`, n, `should be`, want); }\n" + + " if n, op, want := -a, `-`, minus; n != want { ok=false; println(`uint64`, op, a, `=`, n, `should be`, want); }\n" + + "}\n" + + "\n" + + "func testUint64Binary(a, b, add, sub, mul, div, mod, and, or, xor, andnot uint64, dodiv bool) {\n" + + " if n, op, want := a + b, `+`, add; n != want { ok=false; println(`uint64`, a, op, b, `=`, n, `should be`, want); }\n" + + " if n, op, want := a - b, `-`, sub; n != want { ok=false; println(`uint64`, a, op, b, `=`, n, `should be`, want); }\n" + + " if n, op, want := a * b, `*`, mul; n != want { ok=false; println(`uint64`, a, op, b, `=`, n, `should be`, want); }\n" + + " if dodiv {\n" + + " if n, op, want := a / b, `/`, div; n != want { ok=false; println(`uint64`, a, op, b, `=`, n, `should be`, want); }\n" + + " if n, op, want := a % b, `%`, mod; n != want { ok=false; println(`uint64`, a, op, b, `=`, n, `should be`, want); }\n" + + " }\n" + + " if n, op, want := a & b, `&`, and; n != want { ok=false; println(`uint64`, a, op, b, `=`, n, `should be`, want); }\n" + + " if n, op, want := a | b, `|`, or; n != want { ok=false; println(`uint64`, a, op, b, `=`, n, `should be`, want); }\n" + + " if n, op, want := a ^ b, `^`, xor; n != want { ok=false; println(`uint64`, a, op, b, `=`, n, `should be`, want); }\n" + + " if n, op, want := a &^ b, `&^`, andnot; n != want { ok=false; println(`uint64`, a, op, b, `=`, n, `should be`, want); }\n" + + "}\n" + + "\n" + + "func testUint64Shift(a, b, left, right uint64) {\n" + + " if n, op, s, want := a << b, `<<`, b, left; n != want { ok=false; println(`uint64`, a, op, `uint64`, s, `=`, n, `should be`, want); }\n" + + " if n, op, s, want := a >> b, `>>`, b, right; n != want { ok=false; println(`uint64`, a, op, `uint64`, s, `=`, n, `should be`, want); }\n" + + " if uint64(uint(b)) == b {\n" + + " b := uint(b);\n" + + " if n, op, s, want := a << b, `<<`, b, left; n != want { ok=false; println(`uint64`, a, op, `uint`, s, `=`, n, `should be`, want); }\n" + + " if n, op, s, want := a >> b, `>>`, b, right; n != want { ok=false; println(`uint64`, a, op, `uint`, s, `=`, n, `should be`, want); }\n" + + " }\n" + + " if uint64(uint32(b)) == b {\n" + + " b := uint32(b);\n" + + " if n, op, s, want := a << b, `<<`, b, left; n != want { ok=false; println(`uint64`, a, op, `uint32`, s, `=`, n, `should be`, want); }\n" + + " if n, op, s, want := a >> b, `>>`, b, right; n != want { ok=false; println(`uint64`, a, op, `uint32`, s, `=`, n, `should be`, want); }\n" + + " }\n" + + " if uint64(uint16(b)) == b {\n" + + " b := uint16(b);\n" + + " if n, op, s, want := a << b, `<<`, b, left; n != want { ok=false; println(`uint64`, a, op, `uint16`, s, `=`, n, `should be`, want); }\n" + + " if n, op, s, want := a >> b, `>>`, b, right; n != want { ok=false; println(`uint64`, a, op, `uint16`, s, `=`, n, `should be`, want); }\n" + + " }\n" + + " if uint64(uint8(b)) == b {\n" + + " b := uint8(b);\n" + + " if n, op, s, want := a << b, `<<`, b, left; n != want { ok=false; println(`uint64`, a, op, `uint8`, s, `=`, n, `should be`, want); }\n" + + " if n, op, s, want := a >> b, `>>`, b, right; n != want { ok=false; println(`uint64`, a, op, `uint8`, s, `=`, n, `should be`, want); }\n" + + " }\n" + + "}\n" + + "\n" + +func varTests() { + fmt.Fprint(bout, prolog) + for _, a := range int64Values { + fmt.Fprintf(bout, "func test%v() {\n", ntest) + ntest++ + fmt.Fprintf(bout, "\ttestInt64Unary(%v, %v, %v, %v);\n", a, a, a.Com(), a.Neg()) + for _, b := range int64Values { + var div, mod Int64 + dodiv := false + var zero Int64 + if b.Cmp(zero) != 0 { // b != 0 + // Can't divide by zero but also can't divide -0x8000...000 by -1. + var bigneg = Int64{-0x80000000, 0} + var minus1 = Int64{-1, ^uint32(0)} + if a.Cmp(bigneg) != 0 || b.Cmp(minus1) != 0 { // a != -1<<63 || b != -1 + div, mod = a.DivMod(b) + dodiv = true + } + } + fmt.Fprintf(bout, "\ttestInt64Binary(%v, %v, %v, %v, %v, %v, %v, %v, %v, %v, %v, %v);\n", + a, b, a.Plus(b), a.Minus(b), a.Times(b), div, mod, + a.And(b), a.Or(b), a.Xor(b), a.AndNot(b), dodiv) + } + for _, b := range shiftValues { + fmt.Fprintf(bout, "\ttestInt64Shift(%v, %v, %v, %v);\n", + a, b, a.LeftShift64(b), a.RightShift64(b)) + } + fmt.Fprintf(bout, "}\n") + } + + for _, a := range uint64Values { + fmt.Fprintf(bout, "func test%v() {\n", ntest) + ntest++ + fmt.Fprintf(bout, "\ttestUint64Unary(%v, %v, %v, %v);\n", a, a, a.Com(), a.Neg()) + for _, b := range uint64Values { + var div, mod Uint64 + dodiv := false + var zero Uint64 + if b.Cmp(zero) != 0 { // b != 0 + div, mod = a.DivMod(b) + dodiv = true + } + fmt.Fprintf(bout, "\ttestUint64Binary(%v, %v, %v, %v, %v, %v, %v, %v, %v, %v, %v, %v);\n", + a, b, a.Plus(b), a.Minus(b), a.Times(b), div, mod, + a.And(b), a.Or(b), a.Xor(b), a.AndNot(b), dodiv) + } + for _, b := range shiftValues { + fmt.Fprintf(bout, "\ttestUint64Shift(%v, %v, %v, %v);\n", + a, b, a.LeftShift64(b), a.RightShift64(b)) + } + fmt.Fprintf(bout, "}\n") + } +} + +// Part 2 is tests of operations involving one variable and one constant. + +const binaryConstL = "func test%vBinaryL%v(b, add, sub, mul, div, mod, and, or, xor, andnot %v, dodiv bool) {\n" + + " const a %v = %v;\n" + + " const typ = `%s`;\n" + + " if n, op, want := a + b, `+`, add; n != want { ok=false; println(typ, `const`, a, op, `var`, b, `=`, n, `should be`, want); }\n" + + " if n, op, want := a - b, `-`, sub; n != want { ok=false; println(typ, `const`, a, op, `var`, b, `=`, n, `should be`, want); }\n" + + " if n, op, want := a * b, `*`, mul; n != want { ok=false; println(typ, `const`, a, op, `var`, b, `=`, n, `should be`, want); }\n" + + " if dodiv {\n" + + " if n, op, want := a / b, `/`, div; n != want { ok=false; println(typ, `const`, a, op, `var`, b, `=`, n, `should be`, want); }\n" + + " if n, op, want := a %% b, `%%`, mod; n != want { ok=false; println(typ, `const`, a, op, `var`, b, `=`, n, `should be`, want); }\n" + + " }\n" + + " if n, op, want := a & b, `&`, and; n != want { ok=false; println(typ, `const`, a, op, `var`, b, `=`, n, `should be`, want); }\n" + + " if n, op, want := a | b, `|`, or; n != want { ok=false; println(typ, `const`, a, op, `var`, b, `=`, n, `should be`, want); }\n" + + " if n, op, want := a ^ b, `^`, xor; n != want { ok=false; println(typ, `const`, a, op, `var`, b, `=`, n, `should be`, want); }\n" + + " if n, op, want := a &^ b, `&^`, andnot; n != want { ok=false; println(typ, `const`, a, op, `var`, b, `=`, n, `should be`, want); }\n" + + "}\n" + + "\n" + +const binaryConstR = "func test%vBinaryR%v(a, add, sub, mul, div, mod, and, or, xor, andnot %v, dodiv bool) {\n" + + " const b %v = %v;\n" + + " const typ = `%s`;\n" + + " if n, op, want := a + b, `+`, add; n != want { ok=false; println(typ, `var`, a, op, `const`, b, `=`, n, `should be`, want); }\n" + + " if n, op, want := a - b, `-`, sub; n != want { ok=false; println(typ, `var`, a, op, `const`, b, `=`, n, `should be`, want); }\n" + + " if n, op, want := a * b, `*`, mul; n != want { ok=false; println(typ, `var`, a, op, `const`, b, `=`, n, `should be`, want); }\n" + + " if dodiv {\n" + + " if n, op, want := a / b, `/`, div; n != want { ok=false; println(typ, `var`, a, op, `const`, b, `=`, n, `should be`, want); }\n" + + " if n, op, want := a %% b, `%%`, mod; n != want { ok=false; println(typ, `var`, a, op, `const`, b, `=`, n, `should be`, want); }\n" + + " }\n" + + " if n, op, want := a & b, `&`, and; n != want { ok=false; println(typ, `var`, a, op, `const`, b, `=`, n, `should be`, want); }\n" + + " if n, op, want := a | b, `|`, or; n != want { ok=false; println(typ, `var`, a, op, `const`, b, `=`, n, `should be`, want); }\n" + + " if n, op, want := a ^ b, `^`, xor; n != want { ok=false; println(typ, `var`, a, op, `const`, b, `=`, n, `should be`, want); }\n" + + " if n, op, want := a &^ b, `&^`, andnot; n != want { ok=false; println(typ, `var`, a, op, `const`, b, `=`, n, `should be`, want); }\n" + + "}\n" + + "\n" + +const binaryConstR0 = "func test%vBinaryR%v(a, add, sub, mul, div, mod, and, or, xor, andnot %v, dodiv bool) {\n" + + " const b %v = %v;\n" + + " const typ = `%s`;\n" + + " if n, op, want := a + b, `+`, add; n != want { ok=false; println(typ, `var`, a, op, `const`, b, `=`, n, `should be`, want); }\n" + + " if n, op, want := a - b, `-`, sub; n != want { ok=false; println(typ, `var`, a, op, `const`, b, `=`, n, `should be`, want); }\n" + + " if n, op, want := a * b, `*`, mul; n != want { ok=false; println(typ, `var`, a, op, `const`, b, `=`, n, `should be`, want); }\n" + + " if n, op, want := a & b, `&`, and; n != want { ok=false; println(typ, `var`, a, op, `const`, b, `=`, n, `should be`, want); }\n" + + " if n, op, want := a | b, `|`, or; n != want { ok=false; println(typ, `var`, a, op, `const`, b, `=`, n, `should be`, want); }\n" + + " if n, op, want := a ^ b, `^`, xor; n != want { ok=false; println(typ, `var`, a, op, `const`, b, `=`, n, `should be`, want); }\n" + + " if n, op, want := a &^ b, `&^`, andnot; n != want { ok=false; println(typ, `var`, a, op, `const`, b, `=`, n, `should be`, want); }\n" + + "}\n" + + "\n" + +const shiftConstL = "func test%vShiftL%v(b uint64, left, right %v) {\n" + + " const a %v = %v;\n" + + " const typ = `%s`;\n" + + " if n, op, s, want := a << b, `<<`, b, left; n != want { ok=false; println(typ, `const`, a, op, `var`, s, `=`, n, `should be`, want); }\n" + + " if n, op, s, want := a >> b, `>>`, b, right; n != want { ok=false; println(typ, `const`, a, op, `var`, s, `=`, n, `should be`, want); }\n" + + " if uint64(uint32(b)) == b {\n" + + " b := uint32(b);\n" + + " if n, op, s, want := a << b, `<<`, b, left; n != want { ok=false; println(typ, `const`, a, op, `var`, s, `=`, n, `should be`, want); }\n" + + " if n, op, s, want := a >> b, `>>`, b, right; n != want { ok=false; println(typ, `const`, a, op, `var`, s, `=`, n, `should be`, want); }\n" + + " }\n" + + "}\n" + +const shiftConstR = "func test%vShiftR%v(a, left, right %v) {\n" + + " const b uint64 = %v;\n" + + " const typ = `%s`;\n" + + " if n, op, s, want := a << b, `<<`, b, left; n != want { ok=false; println(typ, `var`, a, op, `const`, s, `=`, n, `should be`, want); }\n" + + " if n, op, s, want := a >> b, `>>`, b, right; n != want { ok=false; println(typ, `var`, a, op, `const`, s, `=`, n, `should be`, want); }\n" + + " if b & 0xffffffff == b {\n" + + " const b = uint32(b & 0xffffffff);\n" + + " if n, op, s, want := a << b, `<<`, b, left; n != want { ok=false; println(typ, `var`, a, op, `const`, s, `=`, n, `should be`, want); }\n" + + " if n, op, s, want := a >> b, `>>`, b, right; n != want { ok=false; println(typ, `var`, a, op, `const`, s, `=`, n, `should be`, want); }\n" + + " }\n" + + "}\n" + +func constTests() { + for i, a := range int64Values { + fmt.Fprintf(bout, binaryConstL, "Int64", i, "int64", "int64", a, "int64") + if a.hi == 0 && a.lo == 0 { + fmt.Fprintf(bout, binaryConstR0, "Int64", i, "int64", "int64", a, "int64") + } else { + fmt.Fprintf(bout, binaryConstR, "Int64", i, "int64", "int64", a, "int64") + } + fmt.Fprintf(bout, shiftConstL, "Int64", i, "int64", "int64", a, "int64") + } + for i, a := range uint64Values { + fmt.Fprintf(bout, binaryConstL, "Uint64", i, "uint64", "uint64", a, "uint64") + if a.hi == 0 && a.lo == 0 { + fmt.Fprintf(bout, binaryConstR0, "Uint64", i, "uint64", "uint64", a, "uint64") + } else { + fmt.Fprintf(bout, binaryConstR, "Uint64", i, "uint64", "uint64", a, "uint64") + } + fmt.Fprintf(bout, shiftConstL, "Uint64", i, "uint64", "uint64", a, "uint64") + } + for i, a := range shiftValues { + fmt.Fprintf(bout, shiftConstR, "Int64", i, "int64", a, "int64") + fmt.Fprintf(bout, shiftConstR, "Uint64", i, "uint64", a, "uint64") + } + for i, a := range int64Values { + fmt.Fprintf(bout, "func test%v() {\n", ntest) + ntest++ + for j, b := range int64Values { + var div, mod Int64 + dodiv := false + var zero Int64 + if b.Cmp(zero) != 0 { // b != 0 + // Can't divide by zero but also can't divide -0x8000...000 by -1. + var bigneg = Int64{-0x80000000, 0} + var minus1 = Int64{-1, ^uint32(0)} + if a.Cmp(bigneg) != 0 || b.Cmp(minus1) != 0 { // a != -1<<63 || b != -1 + div, mod = a.DivMod(b) + dodiv = true + } + } + fmt.Fprintf(bout, "\ttestInt64BinaryL%v(%v, %v, %v, %v, %v, %v, %v, %v, %v, %v, %v);\n", + i, b, a.Plus(b), a.Minus(b), a.Times(b), div, mod, + a.And(b), a.Or(b), a.Xor(b), a.AndNot(b), dodiv) + fmt.Fprintf(bout, "\ttestInt64BinaryR%v(%v, %v, %v, %v, %v, %v, %v, %v, %v, %v, %v);\n", + j, a, a.Plus(b), a.Minus(b), a.Times(b), div, mod, + a.And(b), a.Or(b), a.Xor(b), a.AndNot(b), dodiv) + } + for j, b := range shiftValues { + fmt.Fprintf(bout, "\ttestInt64ShiftL%v(%v, %v, %v);\n", + i, b, a.LeftShift64(b), a.RightShift64(b)) + fmt.Fprintf(bout, "\ttestInt64ShiftR%v(%v, %v, %v);\n", + j, a, a.LeftShift64(b), a.RightShift64(b)) + } + fmt.Fprintf(bout, "}\n") + } + for i, a := range uint64Values { + fmt.Fprintf(bout, "func test%v() {\n", ntest) + ntest++ + for j, b := range uint64Values { + var div, mod Uint64 + dodiv := false + var zero Uint64 + if b.Cmp(zero) != 0 { // b != 0 + div, mod = a.DivMod(b) + dodiv = true + } + fmt.Fprintf(bout, "\ttestUint64BinaryL%v(%v, %v, %v, %v, %v, %v, %v, %v, %v, %v, %v);\n", + i, b, a.Plus(b), a.Minus(b), a.Times(b), div, mod, + a.And(b), a.Or(b), a.Xor(b), a.AndNot(b), dodiv) + fmt.Fprintf(bout, "\ttestUint64BinaryR%v(%v, %v, %v, %v, %v, %v, %v, %v, %v, %v, %v);\n", + j, a, a.Plus(b), a.Minus(b), a.Times(b), div, mod, + a.And(b), a.Or(b), a.Xor(b), a.AndNot(b), dodiv) + } + for j, b := range shiftValues { + fmt.Fprintf(bout, "\ttestUint64ShiftL%v(%v, %v, %v);\n", + i, b, a.LeftShift64(b), a.RightShift64(b)) + fmt.Fprintf(bout, "\ttestUint64ShiftR%v(%v, %v, %v);\n", + j, a, a.LeftShift64(b), a.RightShift64(b)) + } + fmt.Fprintf(bout, "}\n") + } +} + +func main() { + bout = bufio.NewWriter(os.Stdout) + varTests() + constTests() + + fmt.Fprintf(bout, "func main() {\n") + for i := 0; i < ntest; i++ { + fmt.Fprintf(bout, "\ttest%v();\n", i) + } + fmt.Fprintf(bout, "\tif !ok { os.Exit(1) }\n") + fmt.Fprintf(bout, "}\n") + bout.Flush() +} |