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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: --x32
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#ld: -pie -melf32_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+120 <foo>:
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+[a-f0-9]+: c3 ret *
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0+121 <bar>:
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+[a-f0-9]+: c3 ret *
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0+122 <_start>:
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+[a-f0-9]+: ff 15 a8 00 20 00 call \*0x2000a8\(%rip\) # 2001d0 <.*>
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+[a-f0-9]+: ff 25 aa 00 20 00 jmp \*0x2000aa\(%rip\) # 2001d8 <.*>
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+[a-f0-9]+: 48 c7 05 9f 00 20 00 00 00 00 00 movq \$0x0,0x20009f\(%rip\) # 2001d8 <.*>
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+[a-f0-9]+: 48 83 3d 8f 00 20 00 00 cmpq \$0x0,0x20008f\(%rip\) # 2001d0 <.*>
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+[a-f0-9]+: 48 3b 0d 88 00 20 00 cmp 0x200088\(%rip\),%rcx # 2001d0 <.*>
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+[a-f0-9]+: 48 3b 0d 89 00 20 00 cmp 0x200089\(%rip\),%rcx # 2001d8 <.*>
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#pass
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