[Bug target/20214] [3.3/3.4/4.0 Regression] ICE with register name which is not a register in x86

[pinskia at gcc dot gnu dot org]

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           What    |Removed                     |Added
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   Target Milestone|---                         |4.0.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20214