digitalmars.D.bugs - [Issue 22664] New: Disassembler mistakes rdtscp for invlpg ECX
- d-bugmail puremagic.com (29/29) Jan 10 2022 https://issues.dlang.org/show_bug.cgi?id=22664
https://issues.dlang.org/show_bug.cgi?id=22664 Issue ID: 22664 Summary: Disassembler mistakes rdtscp for invlpg ECX Product: D Version: D2 Hardware: x86_64 OS: Linux Status: NEW Keywords: disassembler Severity: normal Priority: P1 Component: dmd Assignee: nobody puremagic.com Reporter: maxhaton gmail.com dmd vasm gives ``` simpleLoop: 0000: 0F 01 F9 invlpg ECX ``` GNU objdump gives ``` 0000000000000000 <simpleLoop>: 0: 0f 01 f9 rdtscp ... ``` Note that this is the wrong type of operand for invlpg too (should be an mm64), luckily however when the instruction is decoded as a true positive (i.e. the source bytes really are a invlpg) the correct operand is given. --
Jan 10 2022