llvm/lib/CodeGen/SelectionDAG, branch release_25http://llvm.orghttps://git.amat.us/llvm/atom/lib/CodeGen/SelectionDAG?h=release_252009-02-17T19:01:36ZMerge 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 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!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_25@63793 91177308-0d34-0410-b5e6-96231b3b80d8
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63598 91177308-0d34-0410-b5e6-96231b3b80d8
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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Use SDL->getCurDebugLoc() instead of unknown loc for landing pads.2009-02-03T01:55:42ZBill Wendlingisanbard@gmail.com2009-02-03T01:55:42Zurn:sha1:b288487a8e2291dd802e19b1a9bc930368f448bf
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Explicitly pass in the "unknown" debug location. This is probably not2009-02-03T01:33:28ZBill Wendlingisanbard@gmail.com2009-02-03T01:33:28Zurn:sha1:ec37e98b3d943328795a06a3184a125583dec151
correct. We need more infrastructure before we can get the DebugLoc info for
these instructions.
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Alphabetize includes.2009-02-03T01:32:22ZBill Wendlingisanbard@gmail.com2009-02-03T01:32:22Zurn:sha1:0eb96fd94bce94df680f1fc436c1d3d1c510f937
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63591 91177308-0d34-0410-b5e6-96231b3b80d8
Propagate debug loc info during SDNode -> machine instr creation.2009-02-03T01:02:39ZBill Wendlingisanbard@gmail.com2009-02-03T01:02:39Zurn:sha1:f2ad58d930aa18c8710cbd094eaf987eca0f2c1b
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Create DebugLoc information in FastISel. Several temporary methods were2009-02-03T00:55:04ZBill Wendlingisanbard@gmail.com2009-02-03T00:55:04Zurn:sha1:9bc96a57206cbebaa9b0ba9979f949eb10c1592c
created. Specifically, those BuildMIs which use
"DebugLoc::getUnknownLoc()". I'll remove them soon.
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Propagation in TargetLowering. Includes passing a DL2009-02-03T00:47:48ZDale Johannesendalej@apple.com2009-02-03T00:47:48Zurn:sha1:ff97d4fe81ef0dcee9fe490bed8ab08e40251905
into SimplifySetCC which gets called elsewhere.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63583 91177308-0d34-0410-b5e6-96231b3b80d8