Fix syntax of tests to ensure grep pattern is properly quoted.

llvm-svn: 36134

Convert to new test system. This exposes IsDigit.ll as failing.

llvm-svn: 36046

llvm-svn: 35983

global variables that needed to be passed in. This makes it possible to
add new global variables with only a couple changes (Makefile and llvm-dg.exp)
instead of touching every single dg.exp file.

llvm-svn: 35918

llvm-svn: 35705

Remove "target endian/pointersize" or add "target datalayout" to make
the test parse properly or set the datalayout because defaults changes.

For PR645:
Make global names use the @ prefix.

For llvm-upgrade changes:
Fix test cases or completely remove use of llvm-upgrade for test cases
that cannot survive the new renaming or upgrade capabilities.

llvm-svn: 33533

llvm-svn: 33296