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Bug 2717 – alloca(0) leaves stack unaligned on OSX

Status: RESOLVED
Resolution: FIXED
Severity: normal
Priority: P2
Component: phobos
Product: D
Version: D2
Platform: x86
OS: Mac OS X
Creation time: 2009-03-08T20:26:00Z
Last change time: 2015-06-09T05:15:07Z
Keywords: wrong-code
Assigned to: lio+bugzilla
Creator: lio+bugzilla

Comments

Comment #0 by lio+bugzilla — 2009-03-08T20:26:26Z

I don't have a Mac so I can't test whether this actually causes problems, but commit 102 to alloca.d in druntime did not fix the condition alloca(0): it will allocate 4 bytes, instead of 16. The fix would be to move the "jnz; mov" into the version blocks.