mirror of
https://github.com/golang/go
synced 2024-10-02 22:25:08 +00:00
integer conversions and test.
R=ken OCL=29577 CL=29589
This commit is contained in:
Russ Cox
parent
6e1762c06e
commit
5d1d8a8258
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@ -1045,32 +1045,48 @@ gmove(Node *f, Node *t)
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case CASE(TUINT16, TINT8):
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case CASE(TINT32, TINT8):
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case CASE(TUINT32, TINT8):
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// case CASE(TINT64, TINT8):
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// case CASE(TUINT64, TINT8):
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case CASE(TINT16, TUINT8):
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case CASE(TUINT16, TUINT8):
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case CASE(TINT32, TUINT8):
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case CASE(TUINT32, TUINT8):
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// case CASE(TINT64, TUINT8):
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// case CASE(TUINT64, TUINT8):
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a = AMOVB;
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break;
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case CASE(TINT64, TINT8): // truncate low word
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case CASE(TUINT64, TINT8):
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case CASE(TINT64, TUINT8):
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case CASE(TUINT64, TUINT8):
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split64(f, &flo, &fhi);
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regalloc(&r1, t->type, t);
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gins(AMOVB, &flo, &r1);
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gins(AMOVB, &r1, t);
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regfree(&r1);
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splitclean();
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return;
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case CASE(TINT16, TINT16): // same size
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case CASE(TINT16, TUINT16):
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case CASE(TUINT16, TINT16):
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case CASE(TUINT16, TUINT16):
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case CASE(TINT32, TINT16): // truncate
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case CASE(TUINT32, TINT16):
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// case CASE(TINT64, TINT16):
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// case CASE(TUINT64, TINT16):
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case CASE(TINT32, TUINT16):
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case CASE(TUINT32, TUINT16):
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// case CASE(TINT64, TUINT16):
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// case CASE(TUINT64, TUINT16):
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a = AMOVW;
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break;
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case CASE(TINT64, TINT16): // truncate low word
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case CASE(TUINT64, TINT16):
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case CASE(TINT64, TUINT16):
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case CASE(TUINT64, TUINT16):
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split64(f, &flo, &fhi);
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regalloc(&r1, t->type, t);
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gins(AMOVW, &flo, &r1);
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gins(AMOVW, &r1, t);
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regfree(&r1);
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splitclean();
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return;
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case CASE(TINT32, TINT32): // same size
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case CASE(TINT32, TUINT32):
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case CASE(TUINT32, TINT32):
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@ -1124,10 +1140,10 @@ gmove(Node *f, Node *t)
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case CASE(TINT8, TUINT32):
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a = AMOVBLSX;
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goto rdst;
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// case CASE(TINT8, TINT64):
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// case CASE(TINT8, TUINT64):
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// a = AMOVBQSX;
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// goto rdst;
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case CASE(TINT8, TINT64): // convert via int32
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case CASE(TINT8, TUINT64):
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cvt = types[TINT32];
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goto hard;
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case CASE(TUINT8, TINT16): // zero extend uint8
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case CASE(TUINT8, TUINT16):
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@ -1137,28 +1153,28 @@ gmove(Node *f, Node *t)
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case CASE(TUINT8, TUINT32):
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a = AMOVBLZX;
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goto rdst;
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// case CASE(TUINT8, TINT64):
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// case CASE(TUINT8, TUINT64):
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// a = AMOVBQZX;
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// goto rdst;
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case CASE(TUINT8, TINT64): // convert via uint32
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case CASE(TUINT8, TUINT64):
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cvt = types[TUINT32];
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goto hard;
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case CASE(TINT16, TINT32): // sign extend int16
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case CASE(TINT16, TUINT32):
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a = AMOVWLSX;
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goto rdst;
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// case CASE(TINT16, TINT64):
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// case CASE(TINT16, TUINT64):
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// a = AMOVWQSX;
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// goto rdst;
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case CASE(TINT16, TINT64): // convert via int32
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case CASE(TINT16, TUINT64):
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cvt = types[TINT32];
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goto hard;
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case CASE(TUINT16, TINT32): // zero extend uint16
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case CASE(TUINT16, TUINT32):
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a = AMOVWLZX;
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goto rdst;
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// case CASE(TUINT16, TINT64):
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// case CASE(TUINT16, TUINT64):
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// a = AMOVWQZX;
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// goto rdst;
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case CASE(TUINT16, TINT64): // convert via uint32
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case CASE(TUINT16, TUINT64):
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cvt = types[TUINT32];
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goto hard;
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case CASE(TINT32, TINT64): // sign extend int32
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case CASE(TINT32, TUINT64):
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@ -1323,15 +1339,16 @@ gmove(Node *f, Node *t)
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*/
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/*
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* float to float
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*
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*/
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case CASE(TFLOAT32, TFLOAT32):
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a = AMOVSS;
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a = AFMOVF;
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break;
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case CASE(TFLOAT64, TFLOAT64):
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a = AMOVSD;
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a = AFMOVD;
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break;
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/*
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case CASE(TFLOAT32, TFLOAT64):
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a = ACVTSS2SD;
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goto rdst;
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140
test/intcvt.go
Normal file
140
test/intcvt.go
Normal file
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@ -0,0 +1,140 @@
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// $G $D/$F.go && $L $F.$A && ./$A.out
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// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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const (
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ci8 = -1<<7;
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ci16 = -1<<15 + 100;
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ci32 = -1<<31 + 100000;
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ci64 = -1<<63 + 10000000001;
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cu8 = 1<<8 - 1;
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cu16 = 1<<16 - 1234;
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cu32 = 1<<32 - 1234567;
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cu64 = 1<<64 - 1234567890123;
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cf32 = 1e8 + 0.5;
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cf64 = -1e8 + 0.5;
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)
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var (
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i8 int8 = ci8;
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i16 int16 = ci16;
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i32 int32 = ci32;
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i64 int64 = ci64;
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u8 uint8 = cu8;
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u16 uint16 = cu16;
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u32 uint32 = cu32;
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u64 uint64 = cu64;
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// f32 float32 = 1e8 + 0.5;
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// f64 float64 = -1e8 + 0.5;
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)
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func chki8(i, v int8) { if i != v { panicln(i, "!=", v) } }
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func chki16(i, v int16) { if i != v { panicln(i, "!=", v) } }
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func chki32(i, v int32) { if i != v { panicln(i, "!=", v) } }
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func chki64(i, v int64) { if i != v { panicln(i, "!=", v) } }
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func chku8(i, v uint8) { if i != v { panicln(i, "!=", v) } }
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func chku16(i, v uint16) { if i != v { panicln(i, "!=", v) } }
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func chku32(i, v uint32) { if i != v { panicln(i, "!=", v) } }
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func chku64(i, v uint64) { if i != v { panicln(i, "!=", v) } }
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//func chkf32(f, v float32) { if f != v { panicln(f, "!=", v) } }
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//func chkf64(f, v float64) { if f != v { panicln(f, "!=", v) } }
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func main()
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{
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chki8(int8(i8), ci8 & 0xff - 1<<8);
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chki8(int8(i16), ci16 & 0xff);
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chki8(int8(i32), ci32 & 0xff - 1<<8);
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chki8(int8(i64), ci64 & 0xff);
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chki8(int8(u8), cu8 & 0xff - 1<<8);
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chki8(int8(u16), cu16 & 0xff);
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chki8(int8(u32), cu32 & 0xff);
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chki8(int8(u64), cu64 & 0xff);
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// chki8(int8(f32), 0);
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// chki8(int8(f64), 0);
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chki16(int16(i8), ci8 & 0xffff - 1<<16);
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chki16(int16(i16), ci16 & 0xffff - 1<<16);
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chki16(int16(i32), ci32 & 0xffff - 1<<16);
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chki16(int16(i64), ci64 & 0xffff - 1<<16);
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chki16(int16(u8), cu8 & 0xffff);
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chki16(int16(u16), cu16 & 0xffff - 1<<16);
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chki16(int16(u32), cu32 & 0xffff);
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chki16(int16(u64), cu64 & 0xffff - 1<<16);
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// chki16(int16(f32), 0);
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// chki16(int16(f64), 0);
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chki32(int32(i8), ci8 & 0xffffffff - 1<<32);
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chki32(int32(i16), ci16 & 0xffffffff - 1<<32);
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chki32(int32(i32), ci32 & 0xffffffff - 1<<32);
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chki32(int32(i64), ci64 & 0xffffffff);
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chki32(int32(u8), cu8 & 0xffffffff);
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chki32(int32(u16), cu16 & 0xffffffff);
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chki32(int32(u32), cu32 & 0xffffffff - 1<<32);
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chki32(int32(u64), cu64 & 0xffffffff - 1<<32);
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// chki32(int32(f32), 0);
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// chki32(int32(f64), 0);
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chki64(int64(i8), ci8 & 0xffffffffffffffff - 1<<64);
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chki64(int64(i16), ci16 & 0xffffffffffffffff - 1<<64);
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chki64(int64(i32), ci32 & 0xffffffffffffffff - 1<<64);
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chki64(int64(i64), ci64 & 0xffffffffffffffff - 1<<64);
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chki64(int64(u8), cu8 & 0xffffffffffffffff);
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chki64(int64(u16), cu16 & 0xffffffffffffffff);
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chki64(int64(u32), cu32 & 0xffffffffffffffff);
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chki64(int64(u64), cu64 & 0xffffffffffffffff - 1<<64);
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// chki64(int64(f32), 0);
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// chki64(int64(f64), 0);
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chku8(uint8(i8), ci8 & 0xff);
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chku8(uint8(i16), ci16 & 0xff);
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chku8(uint8(i32), ci32 & 0xff);
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chku8(uint8(i64), ci64 & 0xff);
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chku8(uint8(u8), cu8 & 0xff);
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chku8(uint8(u16), cu16 & 0xff);
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chku8(uint8(u32), cu32 & 0xff);
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chku8(uint8(u64), cu64 & 0xff);
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// chku8(uint8(f32), 0);
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// chku8(uint8(f64), 0);
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chku16(uint16(i8), ci8 & 0xffff);
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chku16(uint16(i16), ci16 & 0xffff);
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chku16(uint16(i32), ci32 & 0xffff);
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chku16(uint16(i64), ci64 & 0xffff);
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chku16(uint16(u8), cu8 & 0xffff);
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chku16(uint16(u16), cu16 & 0xffff);
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chku16(uint16(u32), cu32 & 0xffff);
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chku16(uint16(u64), cu64 & 0xffff);
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// chku16(uint16(f32), 0);
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// chku16(uint16(f64), 0);
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chku32(uint32(i8), ci8 & 0xffffffff);
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chku32(uint32(i16), ci16 & 0xffffffff);
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chku32(uint32(i32), ci32 & 0xffffffff);
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chku32(uint32(i64), ci64 & 0xffffffff);
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chku32(uint32(u8), cu8 & 0xffffffff);
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chku32(uint32(u16), cu16 & 0xffffffff);
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chku32(uint32(u32), cu32 & 0xffffffff);
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chku32(uint32(u64), cu64 & 0xffffffff);
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// chku32(uint32(f32), 0);
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// chku32(uint32(f64), 0);
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chku64(uint64(i8), ci8 & 0xffffffffffffffff);
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chku64(uint64(i16), ci16 & 0xffffffffffffffff);
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chku64(uint64(i32), ci32 & 0xffffffffffffffff);
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chku64(uint64(i64), ci64 & 0xffffffffffffffff);
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chku64(uint64(u8), cu8 & 0xffffffffffffffff);
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chku64(uint64(u16), cu16 & 0xffffffffffffffff);
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chku64(uint64(u32), cu32 & 0xffffffffffffffff);
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chku64(uint64(u64), cu64 & 0xffffffffffffffff);
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// chku64(uint64(f32), 0);
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// chku64(uint64(f64), 0);
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}
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