github.com/bgentry/go@v0.0.0-20150121062915-6cf5a733d54d/src/cmd/link/testdata/dead.s (about)

     1  // Copyright 2014 The Go Authors.  All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  // Test of dead code removal.
     6  // Symbols with names beginning with dead_ should be discarded.
     7  // Others should be kept.
     8  
     9  TEXT start(SB),7,$0	// start symbol
    10  	MOVQ $data1<>(SB), AX
    11  	CALL text1(SB)
    12  	MOVQ $text2(SB), BX
    13  	RET
    14  
    15  TEXT text1(SB),7,$0
    16  	FUNCDATA $1, funcdata+4(SB)
    17  	RET
    18  
    19  TEXT text2(SB),7,$0
    20  	MOVQ $runtime·edata(SB),BX
    21  	RET
    22  
    23  DATA data1<>+0(SB)/8, $data2(SB)
    24  DATA data1<>+8(SB)/8, $data3(SB)
    25  GLOBL data1<>(SB), $16
    26  GLOBL data2(SB), $1
    27  GLOBL data3(SB), $1
    28  GLOBL funcdata(SB), $8
    29  
    30  TEXT dead_start(SB),7,$0
    31  	MOVQ $dead_data1(SB), AX
    32  	CALL dead_text1(SB)
    33  	MOVQ $dead_text2(SB), BX
    34  	RET
    35  
    36  TEXT dead_text1(SB),7,$0
    37  	FUNCDATA $1, dead_funcdata+4(SB)
    38  	RET
    39  
    40  TEXT dead_text2(SB),7,$0
    41  	RET
    42  
    43  DATA dead_data1+0(SB)/8, $dead_data2(SB)
    44  DATA dead_data1+8(SB)/8, $dead_data3(SB)
    45  GLOBL dead_data1(SB), $16
    46  GLOBL dead_data2(SB), $1
    47  GLOBL dead_data3(SB), $1
    48  GLOBL dead_funcdata(SB), $8