issue66066b.go

     1  // run
     2  
     3  // Copyright 2024 The Go Authors. All rights reserved.
     4  // Use of this source code is governed by a BSD-style
     5  // license that can be found in the LICENSE file.
     6  
     7  package main
     8  
     9  //go:noinline
    10  func f32(_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, x int32) uint64 {
    11  	return uint64(uint32(x))
    12  }
    13  
    14  //go:noinline
    15  func f16(_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, x int16) uint64 {
    16  	return uint64(uint16(x))
    17  }
    18  
    19  //go:noinline
    20  func f8(_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, x int8) uint64 {
    21  	return uint64(uint8(x))
    22  }
    23  
    24  //go:noinline
    25  func g32(_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, x uint32) int64 {
    26  	return int64(int32(x))
    27  }
    28  
    29  //go:noinline
    30  func g16(_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, x uint16) int64 {
    31  	return int64(int16(x))
    32  }
    33  
    34  //go:noinline
    35  func g8(_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, x uint8) int64 {
    36  	return int64(int8(x))
    37  }
    38  
    39  func main() {
    40  	if got := f32(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1); got != 0xffffffff {
    41  		println("bad f32", got)
    42  	}
    43  	if got := f16(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1); got != 0xffff {
    44  		println("bad f16", got)
    45  	}
    46  	if got := f8(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1); got != 0xff {
    47  		println("bad f8", got)
    48  	}
    49  	if got := g32(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xffffffff); got != -1 {
    50  		println("bad g32", got)
    51  	}
    52  	if got := g16(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xffff); got != -1 {
    53  		println("bad g16", got)
    54  	}
    55  	if got := g8(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xff); got != -1 {
    56  		println("bad g8", got)
    57  	}
    58  }
    59
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