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a file created by KLEE exists. A big difference between
DejaGNU and llvm-lit is that in DejaGNU the working directory
is the test output directory (e.g. test/Feature/Output) but
in llvm-lit the working directory is the test directory
(e.g. test/Feature )
To fix this I have used the %T substitution variable for llvm-lit.
I have also improved some tests by using LLVM's FileCheck tool
and removing of hard coded constants for data type size in
some places.
This commit inevitably breaks running the tests under DejaGNU.
Although it is possible to hack by introducing the %T substitution
variable some tests would still be broken because the use of shell
pipes in DejaGNU doesn't seem to work properly. I could work around
this but it's really not worth the effort.
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