[Nasm-bugs] [Bug 3392619] New: For AVX2 instructins VPBROADCASTx usage of general purpose register as a source operand isn't detected as an error
noreply-nasm at dev.nasm.us
noreply-nasm at dev.nasm.us
Mon Oct 7 02:14:20 PDT 2019
https://bugzilla.nasm.us/show_bug.cgi?id=3392619
Bug ID: 3392619
Summary: For AVX2 instructins VPBROADCASTx usage of general
purpose register as a source operand isn't detected as
an error
Product: NASM
Version: 2.13.xx
Hardware: PC
OS: Windows
Status: OPEN
Severity: normal
Priority: Medium
Component: Assembler
Assignee: nobody at nasm.us
Reporter: demidov at beamr.com
CC: chang.seok.bae at intel.com, gorcunov at gmail.com,
hpa at zytor.com, nasm-bugs at nasm.us
Obtained from: Binary from nasm.us
According to Intel's documentation all the VPBROADCASTx instructions can
broadcast an integer either from an XMM register or from a memory location. In
my case I had some function arguments defined as registers, and some as stack
memory areas, and I didn't receive any error message from NASM trying to
broadcast a general purpose register :). Indeed, NASM generated some code which
crashed when started. I hope it is easy to fix
With best regards,
Vadim
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