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962 Commits

Author SHA1 Message Date
Evan Cheng
211ffa1351 Code refactoring: pull SchedPreference enum from TargetLowering.h to TargetMachine.h and put it in its own namespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104147 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-19 20:19:50 +00:00
Bill Wendling
53f7602b61 - Set the "HasCalls" flag after instruction selection is finished. 
- Change the logic DisableFramePointerElim() to check for the
  -disable-non-leaf-fp-elim before -disable-fp-elim.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103990 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-17 23:09:50 +00:00
Bill Wendling
b92187a410 Rename "HasCalls" in MachineFrameInfo to "AdjustsStack" to better describe what 
the variable actually tracks.

N.B., several back-ends are using "HasCalls" as being synonymous for something
that adjusts the stack. This isn't 100% correct and should be looked into.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103802 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-14 21:14:32 +00:00
Evan Cheng
f1ced259b5 Instruction selection optimizations may have moved the def of a function argument out of the entry block. rdar://7937489 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102993 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-04 00:58:39 +00:00
Dan Gohman
d725f04ff8 Remove the code for special-casing byval for fast-isel. SelectionDAG 
handles argument lowering anyway, so there's no need for special
casing here.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102828 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-01 02:44:23 +00:00
Dan Gohman
1b79a2ff54 Fix whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102817 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-01 00:33:28 +00:00
Dan Gohman
95140a4cc1 Reorgnaize more switch code lowering to clean up some tricky 
code, and to eliminate the need for the SelectionDAGBuilder
state to be live during CodeGenAndEmitDAG calls.

Call SDB->clear() before CodeGenAndEmitDAG calls instead of
before it, and move the CurDAG->clear() out of SelectionDAGBuilder,
which doesn't own the DAG, and into CodeGenAndEmitDAG.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102814 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-01 00:25:44 +00:00
Dan Gohman
af1d8ca44a Get rid of the EdgeMapping map. Instead, just check for BasicBlock 
changes before doing phi lowering for switches.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102809 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-01 00:01:06 +00:00
Dan Gohman
e7fd7c6886 Remove this debug output. The MachineFunction will be printed once all of 
instruction selection is done; it's confusing to see parts of it printed,
while other parts are omitted, along the way.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102771 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-30 21:21:21 +00:00
Evan Cheng
a36acad67d Re-enable 102565 with fixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102602 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-29 06:33:38 +00:00
Evan Cheng
16e4ace951 Temporarily disable my changes to unbreak the build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102590 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-29 03:34:19 +00:00
Evan Cheng
ee1d91a830 Avoid emitting a dbg_value machineinstr that's not going to be inserted into entry block. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102581 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-29 01:23:55 +00:00
Evan Cheng
1deef27b0a Check Reg against zero. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102573 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-29 00:59:34 +00:00
Evan Cheng
2ad0fcf794 Replace r102368 with code that's less fragile. This creates DBG_VALUE instructions for function arguments early and insert them after instruction selection is done. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102554 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 23:08:54 +00:00
Dan Gohman
e8c92dd439 Move FastISel's HandlePHINodesInSuccessorBlocks call down into FastISel 
itself too.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102176 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-23 15:29:50 +00:00
Dan Gohman
c105a2b5b7 Sink SelectionDAGBuilder's HandlePHINodesInSuccessorBlocks down 
into SelectionDAGBuilder itself.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102128 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-22 20:55:53 +00:00
Dan Gohman
f81eca0ab9 Move HandlePHINodesInSuccessorBlocks functions out of SelectionDAGISel 
and into SelectionDAGBuilder and FastISel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102123 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-22 20:46:50 +00:00
Dan Gohman
620427d5a1 Move PHINodesToUpdate out of SelectionDAGBuilder and into 
FunctionLoweringInfo, as it isn't SelectionDAG-specific. This isn't
completely natural, as PHI node state is not per-function but rather
per-basic-block, however there's currently no other convenient
per-basic-block state to group it with.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102109 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-22 19:55:20 +00:00
Dan Gohman
f0757b0edc Add more const qualifiers on TargetMachine and friends. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101977 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-21 01:34:56 +00:00
Dan Gohman
92884f7ee5 Sink the CopyToExportRegsIfNeeded calls out of SelectionDAGISel 
into SelectionDAGBuilder. This avoids a separate pass over the
instructions, and has the side effect of providing debug location
information to the copy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101906 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 15:03:56 +00:00
Dan Gohman
ba5be5c07b Don't send PHI nodes down to SelectionDAGBuilder of FastISel, since 
they end up doing nothing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101904 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 15:00:41 +00:00
Dan Gohman
a9056dbec1 Remove this debug output; it isn't that useful, and it's incomplete 
in the case where a basic block is split.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101850 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 00:56:44 +00:00
Dan Gohman
8ba3aa7f9c Sink DebugLoc handling out of SelectionDAGISel into FastISel and 
SelectionDAGBuilder, where it doesn't have to be as complicated.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101848 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 00:48:35 +00:00
Dan Gohman
084751cd16 Remove MachineFunction's DefaultDebugLoc member, and make DwarfDebug.cpp 
responsible for figuring out what that's supposed to be on its own.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101844 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 00:37:27 +00:00
Dan Gohman
a9a3321938 Reapply the removal of SelectionDAGISel's BB, with a fix for the case 
where multiple blocks are emitted; functions which do this need to return
the new BB so that their callers can stay current.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101843 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 00:29:35 +00:00
Dan Gohman
68b7960c1a Revert 101825, which is causing trouble. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101832 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-19 23:34:15 +00:00
Dan Gohman
35bb85b7ee Eliminate SelectionDAGISel's "current block" member. Just pass it as 
an argument to things that need it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101825 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-19 22:51:14 +00:00
Dan Gohman
99be8ae389 Eliminate the CurMBB member from SelectionDAGBuilder. For places that 
need it, just pass around the parent block of the current instruction
explicitly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101822 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-19 22:41:47 +00:00
Dan Gohman
50d2b1ac02 Give SelectionDAG a TargetMachine too, rather than having it 
fetch one from the MachineFunction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101807 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-19 19:22:07 +00:00
Dan Gohman
55e59c1863 Code that needs a TargetMachine should have access to one directly, rather 
than just getting one through a TargetLowering.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101802 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-19 19:05:59 +00:00
Dan Gohman
d858e90f03 Use const qualifiers with TargetLowering. This eliminates several 
const_casts, and it reinforces the design of the Target classes being
immutable.

SelectionDAGISel::IsLegalToFold is now a static member function, because
PIC16 uses it in an unconventional way. There is more room for API
cleanup here.

And PIC16's AsmPrinter no longer uses TargetLowering.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101635 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-17 15:26:15 +00:00
Evan Cheng
e5b51ac770 More work to allow dag combiner to promote 16-bit ops to 32-bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101621 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-17 06:13:15 +00:00
Dan Gohman
33b7a291aa Avoid creating virtual registers for unused values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101480 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-16 17:15:02 +00:00
Dan Gohman
a44e522b7d Fix a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101477 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-16 16:52:37 +00:00
Dan Gohman
f89d1dc9b7 Refine further the scope where the global DebugLoc value is active. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101443 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-16 05:06:56 +00:00
Dan Gohman
b35798347e Fix a bunch of namespace polution. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101376 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-15 17:08:50 +00:00
Dan Gohman
ae541aad5c Add more const qualifiers for LLVM IR pointers in CodeGen. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101342 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-15 04:33:49 +00:00
Dan Gohman
46510a73e9 Add const qualifiers to CodeGen's use of LLVM IR constructs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101334 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-15 01:51:59 +00:00
Dan Gohman
6a732b5a66 Delete unused arguments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101275 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 20:05:00 +00:00
Dan Gohman
2520864773 Factor out EH landing pad code into a separate function, and constify 
a bunch of stuff to support it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101273 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 19:53:31 +00:00
Dan Gohman
7f6b8b8891 Reset the debug location even if the instruction was a terminator. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101272 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 19:30:02 +00:00
Dan Gohman
c21a2dc8df Delete an unused function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101263 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 17:22:02 +00:00
Dan Gohman
5dc44335b1 Clear the FunctionLoweringInfo object before doing other things that 
don't need it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101262 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 17:13:16 +00:00
Dan Gohman
0e026729ae Move this assert out of SelectionDAGISel into FunctionLoweringInfo, and 
drop the redundant #ifndef NDEBUG.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101261 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 17:11:23 +00:00
Dan Gohman
046fe6b6ba Add a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101260 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 17:09:37 +00:00
Dan Gohman
b13033f61c Move the code for initialing the entry block livein set out of 
SelectionDAGISel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101258 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 17:05:00 +00:00
Dan Gohman
c0fb65da04 Reorgnaize this code to be more tidy and readable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101256 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 17:02:07 +00:00
Dan Gohman
441516fb3d Trim #includes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101255 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 16:54:39 +00:00
Dan Gohman
98708260f5 Move the code for emitting livein copies out of SelectionDAGISel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101254 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 16:51:49 +00:00
Dan Gohman
de4c0a7da7 Sink landing-pad marking code out of 
SelectionDAGISel::runOnMachineFunction into FunctionLowering.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101252 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 16:32:56 +00:00