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"Unambiguous" is is in particular taking as reference the assembler, which also accepts certain insns - despite them allowing for varying operand size, and hence in principle being ambiguous - without any suffix. For example, from the very beginning of the life of x86-64 I had trouble understanding why a plain and simple RET had to be printed as RETQ. In case someone really used the 16-bit form, RETW disambiguates the two quite fine.
25 lines
841 B
Makefile
25 lines
841 B
Makefile
#source: pr20253-1.s
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#as: --64
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#ld: -shared -melf_x86_64 --hash-style=sysv -z max-page-size=0x200000 -z noseparate-code
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#objdump: -dw
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.*: +file format .*
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Disassembly of section .text:
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0+188 <foo>:
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+[a-f0-9]+: c3 ret *
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0+189 <bar>:
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+[a-f0-9]+: c3 ret *
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0+18a <_start>:
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+[a-f0-9]+: ff 15 08 01 20 00 call \*0x200108\(%rip\) # 200298 <.*>
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+[a-f0-9]+: ff 25 0a 01 20 00 jmp \*0x20010a\(%rip\) # 2002a0 <.*>
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+[a-f0-9]+: 48 c7 05 ff 00 20 00 00 00 00 00 movq \$0x0,0x2000ff\(%rip\) # 2002a0 <.*>
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+[a-f0-9]+: 48 83 3d ef 00 20 00 00 cmpq \$0x0,0x2000ef\(%rip\) # 200298 <.*>
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+[a-f0-9]+: 48 3b 0d e8 00 20 00 cmp 0x2000e8\(%rip\),%rcx # 200298 <.*>
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+[a-f0-9]+: 48 3b 0d e9 00 20 00 cmp 0x2000e9\(%rip\),%rcx # 2002a0 <.*>
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#pass
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