From fa54e6be3cc523aec324f20c8fe2e726960e474f Mon Sep 17 00:00:00 2001 From: Russ Cox Date: Sun, 31 May 2009 12:35:11 -0700 Subject: new 64-bit math test. allow multiline recipes in run. R=r DELTA=712 (708 added, 2 deleted, 2 changed) OCL=29641 CL=29666 --- test/64bit.go | 706 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 706 insertions(+) create mode 100644 test/64bit.go (limited to 'test/64bit.go') diff --git a/test/64bit.go b/test/64bit.go new file mode 100644 index 000000000..a07f6cc15 --- /dev/null +++ b/test/64bit.go @@ -0,0 +1,706 @@ +// $G $D/$F.go && $L $F.$A && ./$A.out >tmp.go && +// $G tmp.go && $L tmp.$A && ./$A.out || echo BUG: 64bit +// rm -f tmp.go + +// 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<= 0; i-- { + if a.lo & (1<= 64: + return false; + case b >= 32: + return a.hi & (1<<(b-32)) != 0; + } + return a.lo & (1<= 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, s, `=`, n, `should be`, want); }\n" + " if n, op, s, want := a >> b, `>>`, b, right; n != want { ok=false; println(`int64`, a, op, 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(`int64`, a, op, s, `=`, n, `should be`, want); }\n" + " if n, op, s, want := a >> b, `>>`, b, right; n != want { ok=false; println(`int64`, a, op, 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, s, `=`, n, `should be`, want); }\n" + " if n, op, s, want := a >> b, `>>`, b, right; n != want { ok=false; println(`uint64`, a, op, 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(`uint64`, a, op, s, `=`, n, `should be`, want); }\n" + " if n, op, s, want := a >> b, `>>`, b, right; n != want { ok=false; println(`uint64`, a, op, 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 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"); + 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"); + 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(); +} -- cgit v1.2.3