http://llvm.org/bugs/show_bug.cgi?id=11027
Summary: [x86 disassembler] rdrand not recognized
Product: libraries
Version: trunk
Platform: PC
OS/Version: All
Status: NEW
Severity: normal
Priority: P
Component: Backend: X86
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
From the "Intel® 64 and IA-32 Architectures Software Developer’s Manual
Volume 2 (2A & 2B): Instruction Set Reference, A-Z", p. 4-309, dated May 2011:
RDRAND—Read Random Number
0F C7 /6
RDRAND r16
0F C7 /6
RDRAND r32
REX.W + 0F C7 /6
RDRAND r64
See also: http://en.wikipedia.org/wiki/RdRand
Using llvm-mc built from r140537:
$ echo '0x0f 0xc7 0xc0'| ./llvm-mc -disassemble -triple="x86_64"
<stdin>:1:1: warning: invalid instruction encoding
0x0f 0xc7 0xc0
^
--
Configure bugmail: http://llvm.org/bugs/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.
_______________________________________________
LLVMbugs mailing list
[email protected]
http://lists.cs.uiuc.edu/mailman/listinfo/llvmbugs
