bad_internal_offsets.go

     1  // compile
     2  
     3  //go:build !wasm
     4  
     5  // Copyright 2021 The Go Authors. All rights reserved.
     6  // Use of this source code is governed by a BSD-style
     7  // license that can be found in the LICENSE file.
     8  
     9  package genChecker0
    10  
    11  var FailCount int
    12  
    13  //go:noinline
    14  func NoteFailure(fidx int, pkg string, pref string, parmNo int, _ uint64) {
    15  	FailCount += 1
    16  	if FailCount > 10 {
    17  		panic("bad")
    18  	}
    19  }
    20  
    21  //go:noinline
    22  func NoteFailureElem(fidx int, pkg string, pref string, parmNo int, elem int, _ uint64) {
    23  	FailCount += 1
    24  	if FailCount > 10 {
    25  		panic("bad")
    26  	}
    27  }
    28  
    29  type StructF0S0 struct {
    30  	F0 int16
    31  	F1 string
    32  	F2 StructF0S1
    33  }
    34  
    35  type StructF0S1 struct {
    36  	_ uint16
    37  }
    38  
    39  // 0 returns 3 params
    40  //go:registerparams
    41  //go:noinline
    42  func Test0(p0 uint32, p1 StructF0S0, p2 int32) {
    43  	// consume some stack space, so as to trigger morestack
    44  	var pad [256]uint64
    45  	pad[FailCount]++
    46  	if p0 == 0 {
    47  		return
    48  	}
    49  	p1f0c := int16(-3096)
    50  	if p1.F0 != p1f0c {
    51  		NoteFailureElem(0, "genChecker0", "parm", 1, 0, pad[0])
    52  		return
    53  	}
    54  	p1f1c := "f6ꂅ8ˋ<"
    55  	if p1.F1 != p1f1c {
    56  		NoteFailureElem(0, "genChecker0", "parm", 1, 1, pad[0])
    57  		return
    58  	}
    59  	p1f2c := StructF0S1{}
    60  	if p1.F2 != p1f2c {
    61  		NoteFailureElem(0, "genChecker0", "parm", 1, 2, pad[0])
    62  		return
    63  	}
    64  	p2f0c := int32(496713155)
    65  	if p2 != p2f0c {
    66  		NoteFailureElem(0, "genChecker0", "parm", 2, 0, pad[0])
    67  		return
    68  	}
    69  	// recursive call
    70  	Test0(p0-1, p1, p2)
    71  	return
    72  	// 0 addr-taken params, 0 addr-taken returns
    73  }
    74
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