Original bug ID: 4181
Reporter: @mmottl
Assigned to: @xavierleroy
Status: closed (set by @xavierleroy on 2006-12-16T10:10:57Z)
Resolution: fixed
Priority: normal
Severity: major
Version: 3.09.3
Category: ~DO NOT USE (was: OCaml general)
Monitored by: @mmottl

Bug description

We have run into the following assembler error on a 64-bit machine running Linux:

/tmp/camlasm8e7fd3.s: Assembler messages:
/tmp/camlasm8e7fd3.s:25: Error: suffix or operands invalid for `add'

The OCaml-code:

let oid_ctr = ref 0;;
oid_ctr := !oid_ctr + max_int / 2

The assembler output of this region:

.L101:
leaq 8(%r15), %rax
movq $1024, -8(%rax)
movq $1, (%rax)
movq %rax, camlRob_test(%rip)
movq camlRob_test(%rip), %rax
addq $4611686018427387902, (%rax)
movq $1, %rax
addq $8, %rsp
ret