deadstore.go

     1  // asmcheck
     2  
     3  // Copyright 2026 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 codegen
     8  
     9  type S struct {
    10  	a, b, c, d, e int
    11  }
    12  
    13  func f1(s *S) {
    14  	// amd64:-`MOVUPS X15`
    15  	// arm64:`FSTPQ` -`STP \(ZR, ZR\)` -`MOVD ZR`
    16  	*s = S{}
    17  	// arm64:`MOVD \$7` `MOVD R[0-9]+, 32\(R[0-9]+\)`
    18  	*s = S{a: 3, b: 4, c: 5, d: 6, e: 7}
    19  }
    20  
    21  func f2(s *S) {
    22  	// amd64:`MOVQ \$3`
    23  	// arm64:-`FSTPQ`
    24  	*s = S{a: 1, b: 2, c: 3, d: 4, e: 5}
    25  	// amd64:-`MOVQ`
    26  	s.a = 3
    27  	// amd64:`MOVQ \$4`
    28  	s.b = 4
    29  	// amd64:`MOVQ \$5`
    30  	s.c = 5
    31  	// amd64:`MOVQ \$6`
    32  	s.d = 6
    33  	// amd64:`MOVQ \$7`
    34  	s.e = 7
    35  }
    36
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