llvm/lib/CodeGen/SelectionDAG, branch testing

Make variable name more explicit and eliminate redundant lookup in SDNodeOrdering

2013-03-20T23:10:59Z

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177600 91177308-0d34-0410-b5e6-96231b3b80d8

When computing the demanded bits of Load SDNodes, make sure that we are looking at the loaded-value operand and not the ptr result (in case of pre-inc loads).

2013-03-20T22:53:44Z

rdar://13348420 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177596 91177308-0d34-0410-b5e6-96231b3b80d8

Revert "pre-RA-sched: fix TargetOpcode usage"

2013-03-20T15:43:00Z

This reverts commit 06091513c283c863296f01cc7c2e86b56bb50d02. The code is obviously wrong, but the trivial fix causes inefficient code generation on X86. Somebody with more knowledge of the code needs to take a look here. Signed-off-by: Christian König git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177529 91177308-0d34-0410-b5e6-96231b3b80d8

Move SDNode order propagation to SDNodeOrdering, which also fixes a missed

2013-03-20T14:51:01Z

case of order propagation during isel. Thanks Owen for the suggestion! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177525 91177308-0d34-0410-b5e6-96231b3b80d8

pre-RA-sched: fix TargetOpcode usage

2013-03-20T13:49:22Z

TargetOpcodes need to be treaded as Machine- and not ISD-Opcodes. Signed-off-by: Christian König git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177518 91177308-0d34-0410-b5e6-96231b3b80d8

Propagate DAG node ordering during type legalization and instruction selection

2013-03-20T00:10:32Z

A node's ordering is only propagated during legalization if (a) the new node does not have an ordering (is not a CSE'd node), or (b) the new node has an ordering that is higher than the node being legalized. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177465 91177308-0d34-0410-b5e6-96231b3b80d8

Reset some of the target options which affect code generation.

2013-03-13T22:26:59Z

This doesn't reset all of the target options within the TargetOptions object. This is because some of those are ABI-specific and must be determined if it's okay to change those on the fly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176986 91177308-0d34-0410-b5e6-96231b3b80d8

Avoid generating ISD::SELECT for vector operands to SIGN_EXTEND

2013-03-12T18:17:18Z

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176881 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a crasher newly introduced in r176659/r176649, where fast-isel tries to

2013-03-11T21:44:37Z

lower an expect intrinsic that is a constant expression. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176830 91177308-0d34-0410-b5e6-96231b3b80d8

Disable statistics on Release builds and move tests that depend on -stats.

2013-03-08T22:56:31Z

Summary: Statistics are still available in Release+Asserts (any +Asserts builds), and stats can also be turned on with LLVM_ENABLE_STATS. Move some of the FastISel stats that were moved under DEBUG() back out of DEBUG(), since stats are disabled across the board now. Many tests depend on grepping "-stats" output. Move those into a orig_dir/Stats/. so that they can be marked as unsupported when building without statistics. Differential Revision: http://llvm-reviews.chandlerc.com/D486 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176733 91177308-0d34-0410-b5e6-96231b3b80d8