Source file test/align.go

     1  // run
     2  
     3  // Copyright 2018 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  // On 32-bit archs, one of the f fields of a [2]T
    10  // will be unaligned (address of 4 mod 8).
    11  // Make sure we can access the f fields successfully,
    12  // particularly for load-add combo instructions
    13  // introduced by CL 102036.
    14  type T struct {
    15  	pad uint32
    16  	f float64
    17  }
    18  
    19  //go:noinline
    20  func f(t, u *T) float64 {
    21  	return 3.0 + t.f + u.f
    22  }
    23  
    24  func main() {
    25  	t := [2]T{{0, 1.0}, {0, 2.0}}
    26  	sink = f(&t[0], &t[1])
    27  }
    28  
    29  var sink float64
    30  

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