Fix ConstantFold's folding of icmp instructions to recognize that,
for example, a one-past-the-end pointer from one global variable may
be equal to the base pointer of another global variable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173995 91177308-0d34-0410-b5e6-96231b3b80d8
Rewrite this test properly with a FileCheck instead of greps


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173997 91177308-0d34-0410-b5e6-96231b3b80d8
stripAndComputeConstantOffsets is only called on pointers; check this
with an assert instead of failing and requiring callers to check for failure.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173998 91177308-0d34-0410-b5e6-96231b3b80d8
[lit] Add a test suite for lit itself.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173999 91177308-0d34-0410-b5e6-96231b3b80d8
[lit] Add a script for checking test coverage.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174000 91177308-0d34-0410-b5e6-96231b3b80d8
[lit] Add a basic discovery test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174001 91177308-0d34-0410-b5e6-96231b3b80d8
[lit] Add a MANIFEST file and a script for sanity checking the source dist.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174002 91177308-0d34-0410-b5e6-96231b3b80d8
Make sure that the Attribute object represents one attribute only.

Several places were still treating the Attribute object as respresenting
multiple attributes. Those places now use the AttributeSet to represent
multiple attributes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174003 91177308-0d34-0410-b5e6-96231b3b80d8
Minor code simplification.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174005 91177308-0d34-0410-b5e6-96231b3b80d8
Replace some more greps with FileChecks in tests


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174006 91177308-0d34-0410-b5e6-96231b3b80d8
LangRef: Add a Rationale for volatile rules.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174007 91177308-0d34-0410-b5e6-96231b3b80d8
Check and allow floating point registers to select the size of the
register for inline asm. This conforms to how gcc allows for effective
casting of inputs into gprs (fprs is already handled).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174008 91177308-0d34-0410-b5e6-96231b3b80d8
Whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174009 91177308-0d34-0410-b5e6-96231b3b80d8
Remove the AttrBuilder version of the Attribute::get function.

The AttrBuilder is there to build up multiple attributes. The Attribute class
represents only one attribute at a time. So remove this unnecessary builder
creator method.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174010 91177308-0d34-0410-b5e6-96231b3b80d8