llvm/lib/CodeGen, branch release_25http://llvm.orghttps://git.amat.us/llvm/atom/lib/CodeGen?h=release_252009-02-17T19:33:52ZMerge 64582 from mainline2009-02-17T19:33:52ZTanya Lattnertonic@nondot.org2009-02-17T19:33:52Zurn:sha1:41b57f5044c9e9e737ff20f55dc980026f4152f7
Fix PR3522. It's not safe to sink into landing pad BB's.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_25@64790 91177308-0d34-0410-b5e6-96231b3b80d8
Merge all changes to SimpleRegisterCoalescing to the release.2009-02-17T19:21:47ZTanya Lattnertonic@nondot.org2009-02-17T19:21:47Zurn:sha1:8396e7671f88c28f9edfe92a53a60c3abb5b64d3
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_25@64785 91177308-0d34-0410-b5e6-96231b3b80d8
Merge 64314 from mainline.2009-02-17T19:01:36ZTanya Lattnertonic@nondot.org2009-02-17T19:01:36Zurn:sha1:9114c43bee82b9992fe1fcb12d58a8b2e3a474b6
Make a transformation added in 63266 a bit less aggressive.
It was transforming (x&y)==y to (x&y)!=0 in the case where
y is variable and known to have at most one bit set (e.g. z&1).
This is not correct; the expressions are not equivalent when y==0.
I believe this patch salvages what can be salvaged, including
all the cases in bt.ll.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_25@64782 91177308-0d34-0410-b5e6-96231b3b80d8
Merge 64124 frm mainline.2009-02-14T00:59:47ZTanya Lattnertonic@nondot.org2009-02-14T00:59:47Zurn:sha1:6a64c0bc1e7ac9459f769d1cca79bb13ab2fb452
Turns out AnalyzeBranch can modify the mbb being analyzed. This is a nasty
suprise to some callers, e.g. register coalescer. For now, add an parameter
that tells AnalyzeBranch whether it's safe to modify the mbb. A better
solution is out there, but I don't have time to deal with it right now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_25@64518 91177308-0d34-0410-b5e6-96231b3b80d8
Merge from mainline.2009-02-13T23:53:40ZTanya Lattnertonic@nondot.org2009-02-13T23:53:40Zurn:sha1:c1a60e850e9f8bfe2a4cd6cc8774ca34b35cbdc6
Fix PR3486. Fix a bug in code that manually patch physical register live interval after its sub-register is coalesced with a virtual register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_25@64509 91177308-0d34-0410-b5e6-96231b3b80d8
Merge from mainline.2009-02-13T23:52:54ZTanya Lattnertonic@nondot.org2009-02-13T23:52:54Zurn:sha1:93639fb5cda4ccee74cc605ca4f8bf98b59fc163
Pre-alloc splitting needs to be more careful to avoid inserting spills/restores
between call frame setup/restore points. Unfortunately, this regresses
code size a bit, but at least it's correct now!
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Merge from mainline.2009-02-04T23:20:50ZTanya Lattnertonic@nondot.org2009-02-04T23:20:50Zurn:sha1:ee9a19c189d19700a4b06b6975a3b10472d619fc
First initialize DAG otherwise dwarf writer is used uninitialized.
Duncan spotted this. Thanks!
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Explicitly pass in debug location information to BuildMI.2009-02-03T02:29:34ZBill Wendlingisanbard@gmail.com2009-02-03T02:29:34Zurn:sha1:d62e06c53b8b7e555617dc9b24b98c007d63de5d
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Pass in something sensible for the debug location information when creating the2009-02-03T02:20:52ZBill Wendlingisanbard@gmail.com2009-02-03T02:20:52Zurn:sha1:6a8a0d74cb73956a9452943d4d4102ebede1f69e
initial PHI nodes of the machine function.
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Fill in some missing DL propagation in getNode()s.2009-02-03T01:55:44ZDale Johannesendalej@apple.com2009-02-03T01:55:44Zurn:sha1:dbfd8dbdee81d016557dc77d34090492eda55562
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