according to www.linux-foundation.org/spec/refspecs/elf/x86_64-SysV-psABI.pdf the registers should be in the order rax, rbx, rcx, rdx, gcc puts them in rax, rdx, rcx, rbx.
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Summary: config/i386/i386.h rbx and rdx dwarf register numbers
are switched.
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: npremji at redhat dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32982
