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36938cabf0
"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.
24 lines
870 B
Plaintext
24 lines
870 B
Plaintext
#source: tlsgd8.s
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#as: --64
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#ld: -melf_x86_64 tmpdir/tlsgd8
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#objdump: -drwj.text
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#target: x86_64-*-linux*
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.*: +file format .*
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Disassembly of section .text:
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[a-f0-9]+ <_start>:
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[ ]*[a-f0-9]+: 49 bb ([0-9a-f]{2} ){8} movabs \$0x[0-9a-f]+,%r11
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[ ]*[a-f0-9]+: 53 push %rbx
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[ ]*[a-f0-9]+: 53 push %rbx
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[ ]*[a-f0-9]+: 48 8d 1d ed ff ff ff lea -0x13\(%rip\),%rbx # [0-9a-f]+ <_start>
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[ ]*[a-f0-9]+: 4c 01 db add %r11,%rbx
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[ ]*[a-f0-9]+: 64 48 8b 04 25 00 00 00 00 mov %fs:0x0,%rax
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[ ]*[a-f0-9]+: 48 03 05 ([0-9a-f]{2} ){4} add 0x[0-9a-f]+\(%rip\),%rax # [0-9a-f]+ <foo>
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[ ]*[a-f0-9]+: 66 0f 1f 44 00 00 nopw 0x0\(%rax,%rax,1\)
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[ ]*[a-f0-9]+: 5b pop %rbx
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[ ]*[a-f0-9]+: 5b pop %rbx
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[ ]*[a-f0-9]+: c3 ret *
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#pass
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