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Compiler crash when turning on -unsafe option. #6277

vicuna opened this issue Dec 18, 2013 · 1 comment


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commented Dec 18, 2013

Original bug ID: 6277
Reporter: @sbriais
Status: closed (set by @xavierleroy on 2015-12-11T18:25:32Z)
Resolution: fixed
Priority: normal
Severity: crash
Platform: Linux 64 bits
Version: 4.01.0
Fixed in version: 4.01.1+dev
Category: back end (clambda to assembly)
Related to: #6216
Monitored by: @gasche

Bug description

The compiler crash when compiling the attached code with -unsafe turned on.

Steps to reproduce

$ ocamlopt -unsafe -c

Fatal error: Selection.emit_expr: unbound var j_1010
Fatal error: exception Misc.Fatal_error

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commented Dec 18, 2013

Comment author: @xavierleroy

This is another manifestation of the problem with float unboxing described in #6216. The fix for #6216 (patch "cmmgen-patch.diff" there) also fixes this issue. Already corrected in 4.01 bugfix branch and in trunk.

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