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Commit 5d1d8a82 authored by Russ Cox's avatar Russ Cox
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integer conversions and test. 

R=ken
OCL=29577
CL=29589
parent 6e1762c0
Hide whitespace changes
Inline Side-by-side
Showing with 184 additions and 27 deletions
src/cmd/8g/gsubr.c
View file @ 5d1d8a82
......@@ -1045,32 +1045,48 @@ gmove(Node *f, Node *t)
case CASE(TUINT16, TINT8):
case CASE(TINT32, TINT8):
case CASE(TUINT32, TINT8):
// case CASE(TINT64, TINT8):
// case CASE(TUINT64, TINT8):
case CASE(TINT16, TUINT8):
case CASE(TUINT16, TUINT8):
case CASE(TINT32, TUINT8):
case CASE(TUINT32, TUINT8):
// case CASE(TINT64, TUINT8):
// case CASE(TUINT64, TUINT8):
a = AMOVB;
break;
case CASE(TINT64, TINT8): // truncate low word
case CASE(TUINT64, TINT8):
case CASE(TINT64, TUINT8):
case CASE(TUINT64, TUINT8):
split64(f, &flo, &fhi);
regalloc(&r1, t->type, t);
gins(AMOVB, &flo, &r1);
gins(AMOVB, &r1, t);
regfree(&r1);
splitclean();
return;
case CASE(TINT16, TINT16): // same size
case CASE(TINT16, TUINT16):
case CASE(TUINT16, TINT16):
case CASE(TUINT16, TUINT16):
case CASE(TINT32, TINT16): // truncate
case CASE(TUINT32, TINT16):
// case CASE(TINT64, TINT16):
// case CASE(TUINT64, TINT16):
case CASE(TINT32, TUINT16):
case CASE(TUINT32, TUINT16):
// case CASE(TINT64, TUINT16):
// case CASE(TUINT64, TUINT16):
a = AMOVW;
break;
case CASE(TINT64, TINT16): // truncate low word
case CASE(TUINT64, TINT16):
case CASE(TINT64, TUINT16):
case CASE(TUINT64, TUINT16):
split64(f, &flo, &fhi);
regalloc(&r1, t->type, t);
gins(AMOVW, &flo, &r1);
gins(AMOVW, &r1, t);
regfree(&r1);
splitclean();
return;
case CASE(TINT32, TINT32): // same size
case CASE(TINT32, TUINT32):
case CASE(TUINT32, TINT32):
......@@ -1124,10 +1140,10 @@ gmove(Node *f, Node *t)
case CASE(TINT8, TUINT32):
a = AMOVBLSX;
goto rdst;
// case CASE(TINT8, TINT64):
// case CASE(TINT8, TUINT64):
// a = AMOVBQSX;
// goto rdst;
case CASE(TINT8, TINT64): // convert via int32
case CASE(TINT8, TUINT64):
cvt = types[TINT32];
goto hard;
case CASE(TUINT8, TINT16): // zero extend uint8
case CASE(TUINT8, TUINT16):
......@@ -1137,28 +1153,28 @@ gmove(Node *f, Node *t)
case CASE(TUINT8, TUINT32):
a = AMOVBLZX;
goto rdst;
// case CASE(TUINT8, TINT64):
// case CASE(TUINT8, TUINT64):
// a = AMOVBQZX;
// goto rdst;
case CASE(TUINT8, TINT64): // convert via uint32
case CASE(TUINT8, TUINT64):
cvt = types[TUINT32];
goto hard;
case CASE(TINT16, TINT32): // sign extend int16
case CASE(TINT16, TUINT32):
a = AMOVWLSX;
goto rdst;
// case CASE(TINT16, TINT64):
// case CASE(TINT16, TUINT64):
// a = AMOVWQSX;
// goto rdst;
case CASE(TINT16, TINT64): // convert via int32
case CASE(TINT16, TUINT64):
cvt = types[TINT32];
goto hard;
case CASE(TUINT16, TINT32): // zero extend uint16
case CASE(TUINT16, TUINT32):
a = AMOVWLZX;
goto rdst;
// case CASE(TUINT16, TINT64):
// case CASE(TUINT16, TUINT64):
// a = AMOVWQZX;
// goto rdst;
case CASE(TUINT16, TINT64): // convert via uint32
case CASE(TUINT16, TUINT64):
cvt = types[TUINT32];
goto hard;
case CASE(TINT32, TINT64): // sign extend int32
case CASE(TINT32, TUINT64):
......@@ -1323,15 +1339,16 @@ gmove(Node *f, Node *t)
*/
/*
* float to float
*
*/
case CASE(TFLOAT32, TFLOAT32):
a = AMOVSS;
a = AFMOVF;
break;
case CASE(TFLOAT64, TFLOAT64):
a = AMOVSD;
a = AFMOVD;
break;
/*
case CASE(TFLOAT32, TFLOAT64):
a = ACVTSS2SD;
goto rdst;
......
test/intcvt.go 0 → 100644
View file @ 5d1d8a82
// $G $D/$F.go && $L $F.$A && ./$A.out
// 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.
package main
const (
ci8 = -1<<7;
ci16 = -1<<15 + 100;
ci32 = -1<<31 + 100000;
ci64 = -1<<63 + 10000000001;
cu8 = 1<<8 - 1;
cu16 = 1<<16 - 1234;
cu32 = 1<<32 - 1234567;
cu64 = 1<<64 - 1234567890123;
cf32 = 1e8 + 0.5;
cf64 = -1e8 + 0.5;
)
var (
i8 int8 = ci8;
i16 int16 = ci16;
i32 int32 = ci32;
i64 int64 = ci64;
u8 uint8 = cu8;
u16 uint16 = cu16;
u32 uint32 = cu32;
u64 uint64 = cu64;
// f32 float32 = 1e8 + 0.5;
// f64 float64 = -1e8 + 0.5;
)
func chki8(i, v int8) { if i != v { panicln(i, "!=", v) } }
func chki16(i, v int16) { if i != v { panicln(i, "!=", v) } }
func chki32(i, v int32) { if i != v { panicln(i, "!=", v) } }
func chki64(i, v int64) { if i != v { panicln(i, "!=", v) } }
func chku8(i, v uint8) { if i != v { panicln(i, "!=", v) } }
func chku16(i, v uint16) { if i != v { panicln(i, "!=", v) } }
func chku32(i, v uint32) { if i != v { panicln(i, "!=", v) } }
func chku64(i, v uint64) { if i != v { panicln(i, "!=", v) } }
//func chkf32(f, v float32) { if f != v { panicln(f, "!=", v) } }
//func chkf64(f, v float64) { if f != v { panicln(f, "!=", v) } }
func main()
{
chki8(int8(i8), ci8 & 0xff - 1<<8);
chki8(int8(i16), ci16 & 0xff);
chki8(int8(i32), ci32 & 0xff - 1<<8);
chki8(int8(i64), ci64 & 0xff);
chki8(int8(u8), cu8 & 0xff - 1<<8);
chki8(int8(u16), cu16 & 0xff);
chki8(int8(u32), cu32 & 0xff);
chki8(int8(u64), cu64 & 0xff);
// chki8(int8(f32), 0);
// chki8(int8(f64), 0);
chki16(int16(i8), ci8 & 0xffff - 1<<16);
chki16(int16(i16), ci16 & 0xffff - 1<<16);
chki16(int16(i32), ci32 & 0xffff - 1<<16);
chki16(int16(i64), ci64 & 0xffff - 1<<16);
chki16(int16(u8), cu8 & 0xffff);
chki16(int16(u16), cu16 & 0xffff - 1<<16);
chki16(int16(u32), cu32 & 0xffff);
chki16(int16(u64), cu64 & 0xffff - 1<<16);
// chki16(int16(f32), 0);
// chki16(int16(f64), 0);
chki32(int32(i8), ci8 & 0xffffffff - 1<<32);
chki32(int32(i16), ci16 & 0xffffffff - 1<<32);
chki32(int32(i32), ci32 & 0xffffffff - 1<<32);
chki32(int32(i64), ci64 & 0xffffffff);
chki32(int32(u8), cu8 & 0xffffffff);
chki32(int32(u16), cu16 & 0xffffffff);
chki32(int32(u32), cu32 & 0xffffffff - 1<<32);
chki32(int32(u64), cu64 & 0xffffffff - 1<<32);
// chki32(int32(f32), 0);
// chki32(int32(f64), 0);
chki64(int64(i8), ci8 & 0xffffffffffffffff - 1<<64);
chki64(int64(i16), ci16 & 0xffffffffffffffff - 1<<64);
chki64(int64(i32), ci32 & 0xffffffffffffffff - 1<<64);
chki64(int64(i64), ci64 & 0xffffffffffffffff - 1<<64);
chki64(int64(u8), cu8 & 0xffffffffffffffff);
chki64(int64(u16), cu16 & 0xffffffffffffffff);
chki64(int64(u32), cu32 & 0xffffffffffffffff);
chki64(int64(u64), cu64 & 0xffffffffffffffff - 1<<64);
// chki64(int64(f32), 0);
// chki64(int64(f64), 0);
chku8(uint8(i8), ci8 & 0xff);
chku8(uint8(i16), ci16 & 0xff);
chku8(uint8(i32), ci32 & 0xff);
chku8(uint8(i64), ci64 & 0xff);
chku8(uint8(u8), cu8 & 0xff);
chku8(uint8(u16), cu16 & 0xff);
chku8(uint8(u32), cu32 & 0xff);
chku8(uint8(u64), cu64 & 0xff);
// chku8(uint8(f32), 0);
// chku8(uint8(f64), 0);
chku16(uint16(i8), ci8 & 0xffff);
chku16(uint16(i16), ci16 & 0xffff);
chku16(uint16(i32), ci32 & 0xffff);
chku16(uint16(i64), ci64 & 0xffff);
chku16(uint16(u8), cu8 & 0xffff);
chku16(uint16(u16), cu16 & 0xffff);
chku16(uint16(u32), cu32 & 0xffff);
chku16(uint16(u64), cu64 & 0xffff);
// chku16(uint16(f32), 0);
// chku16(uint16(f64), 0);
chku32(uint32(i8), ci8 & 0xffffffff);
chku32(uint32(i16), ci16 & 0xffffffff);
chku32(uint32(i32), ci32 & 0xffffffff);
chku32(uint32(i64), ci64 & 0xffffffff);
chku32(uint32(u8), cu8 & 0xffffffff);
chku32(uint32(u16), cu16 & 0xffffffff);
chku32(uint32(u32), cu32 & 0xffffffff);
chku32(uint32(u64), cu64 & 0xffffffff);
// chku32(uint32(f32), 0);
// chku32(uint32(f64), 0);
chku64(uint64(i8), ci8 & 0xffffffffffffffff);
chku64(uint64(i16), ci16 & 0xffffffffffffffff);
chku64(uint64(i32), ci32 & 0xffffffffffffffff);
chku64(uint64(i64), ci64 & 0xffffffffffffffff);
chku64(uint64(u8), cu8 & 0xffffffffffffffff);
chku64(uint64(u16), cu16 & 0xffffffffffffffff);
chku64(uint64(u32), cu32 & 0xffffffffffffffff);
chku64(uint64(u64), cu64 & 0xffffffffffffffff);
// chku64(uint64(f32), 0);
// chku64(uint64(f64), 0);
}
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