llvm/test/CodeGen/AArch64, branch testing

Test case hygiene.

2013-03-09T18:25:40Z

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176772 91177308-0d34-0410-b5e6-96231b3b80d8

AArch64: specify full triple in test as only Linux works for now.

2013-03-08T15:27:30Z

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176692 91177308-0d34-0410-b5e6-96231b3b80d8

AArch64: expand sincos operations, we don't support them.

2013-03-08T13:55:07Z

Patch based on Mans Rullgard's. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176688 91177308-0d34-0410-b5e6-96231b3b80d8

AArch64: be more careful resorting to inefficient addressing for weak vars.

2013-02-28T14:36:31Z

If an otherwise weak var is actually defined in this unit, it can't be undefined at runtime so we can use normal global variable sequences (ADRP/ADD) to access it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176259 91177308-0d34-0410-b5e6-96231b3b80d8

AArch64: don't drop GlobalAddress offset when handling extern_weak decls.

2013-02-28T14:36:24Z

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176258 91177308-0d34-0410-b5e6-96231b3b80d8

AArch64: Use cbnz instead of cmp/b.ne pair for atomic operations.

2013-02-28T13:52:07Z

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176253 91177308-0d34-0410-b5e6-96231b3b80d8

AArch64: remove ConstantIsland pass & put literals in separate section.

2013-02-15T09:33:43Z

This implements the review suggestion to simplify the AArch64 backend. If we later discover that we *really* need the extra complexity of the ConstantIslands pass for performance reasons it can be resurrected. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175258 91177308-0d34-0410-b5e6-96231b3b80d8

AArch64: refactor frame handling to use movz/movk for overlarge offsets.

2013-02-15T09:33:26Z

In the near future litpools will be in a different section, which means that any access to them is at least two instructions. This makes the case for a movz/movk pair (if total offset <= 32-bits) even more compelling. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175257 91177308-0d34-0410-b5e6-96231b3b80d8

Implement external weak (ELF) symbols on AArch64

2013-02-06T16:43:33Z

Weakly defined symbols should evaluate to 0 if they're undefined at link-time. This is impossible to do with the usual address generation patterns, so we should use a literal pool entry to materlialise the address. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174518 91177308-0d34-0410-b5e6-96231b3b80d8

Reapply r174343, with a fix for a scary DAG combine bug where it failed to differentiate between the alignment of the

2013-02-05T19:24:39Z

base point of a load, and the overall alignment of the load. This caused infinite loops in DAG combine with the original application of this patch. ORIGINAL COMMIT LOG: When the target-independent DAGCombiner inferred a higher alignment for a load, it would replace the load with one with the higher alignment. However, it did not place the new load in the worklist, which prevented later DAG combines in the same phase (for example, target-specific combines) from ever seeing it. This patch corrects that oversight, and updates some tests whose output changed due to slightly different DAGCombine outputs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174431 91177308-0d34-0410-b5e6-96231b3b80d8