[lldb-dev] clang expression parser question

[Todd Fiala]

Hey guys,

Zachary has this patch (http://reviews.llvm.org/D4282) that removes the
trimming of the 4th component of the triple when setting the compiler
triple for an expression evaluation when the target exists and has a valid
architecture.

This fixes an issue for him.  I tested it on Linux x86_64 running a Linux
x86_64 target while at a breakpoint.  I also did the same test for MacOSX
lldb running against a MacOSX x86_64 exe.  In both cases, a "(lldb) expr
5*3" worked and produced expected results.

Are there any triple cases where the trimming of the 4th element is
mandatory for the expression execution to work?  I thought you might have a
simulator/device where this is necessary to do.  If so, we can
conditionalize when we trim.  The patch as is just removes the trimming
altogether.

Thanks!
-- 
-Todd
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