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4350 Commits

Author SHA1 Message Date
Dan Gohman
97c94b8fc6 In bottom-up mode, defer the materialization of local constant values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103139 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-06 00:02:14 +00:00
Dan Gohman
a7a0ed7901 Add an "IsBottomUp" member function to FastISel, which will be used to 
support a new bottom-up mode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103138 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-05 23:58:35 +00:00
Devang Patel
d47f3c803f Use getValue() for PHINodes when direct NodeMap access does not work. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103126 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-05 22:29:00 +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
Evan Cheng
ba609c88a5 Teach scheduler about REG_SEQUENCE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102984 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-04 00:22:40 +00:00
Dan Gohman
2131e2a75f Re-enable isel kill flags, now that the local allocator is ignoring them. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102981 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-04 00:12:15 +00:00
Dan Gohman
1fdc614bee Factor out FastISel's code for materializing constants and other values 
in registers into a separate function to de-couple it from the
top-down-specific logic in getRegForValue.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102975 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-03 23:36:34 +00:00
Anton Korobeynikov
17458a786e Insert ANY_EXTEND node instead of invalid truncate during DAG Combining (X & 1), 
when needed. This fixes PR7001

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102838 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-01 12:52:34 +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
0b7afeb440 Re-disable kill flags, as there is more trouble. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102826 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-01 01:57:56 +00:00
Dan Gohman
3a401bcd04 Re-enable kill flags from SelectionDAGISel, with a fix: don't 
try to put a kill flag on a DBG_INFO instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102820 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-01 00:50:53 +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
5d11ea39f7 Don't pass SDValues by non-const reference unless they may be 
modified.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102816 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-01 00:33:16 +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
1b40319eba Delete the EdgeMapping variable itself. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102810 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-01 00:02:20 +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
Bill Wendling
d71bb56275 EXTRACT_VECTOR_ELT of an INSERT_VECTOR_ELT may have the same index, but the 
indexes could be of a different value type. Or not even using the same SDNode
for the constant (weird, I know). Compare the actual values instead of the
pointers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102791 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-30 22:19:17 +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
Dan Gohman
891ff8fbd6 EmitDbgValue doesn't need its EdgeMapping argument. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102742 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-30 19:35:33 +00:00
Dan Gohman
3ce89f47de Apply a patch from Jan Sjodin to fix a compiler abort on vector 
comparisons sign-extended to a different bitwidth than the
comparison operands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102721 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-30 17:19:19 +00:00
Dan Gohman
71cee76d26 Temporarily disable SelectionDAG kill flags, which are causing trouble. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102680 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-30 00:32:51 +00:00
Dan Gohman
47bd03b277 Set register kill flags on the SelectionDAG path, at least in the 
easy cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102678 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-30 00:08:21 +00:00
Devang Patel
719f6a9d9c Refactor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102661 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-29 20:40:36 +00:00
Devang Patel
a83ce98d5f DO not push DBG_VALUE machine instructions for inlined fuction arguments in entry block. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102653 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-29 18:50:36 +00:00
Evan Cheng
8fed76115e Add comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102606 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-29 06:58:53 +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
9e8a2b9346 Do not generate duplicate dbg_value instructions for function arguments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102585 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-29 01:40:30 +00:00
Dan Gohman
c924556dd5 Fix missing #include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102584 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-29 01:39:13 +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
Devang Patel
f38c6c89f1 tidy up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102558 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 23:24:13 +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
Devang Patel
54fc4d6a48 While lowering dbg_declare, emit DBG_VALUE machine instruction if alloca matching llvm.dbg.declare intrinsic is missing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102513 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 19:27:33 +00:00
Evan Cheng
b3a3d5e858 Try operation promotion only if regular dag combine and target-specific ones failed to do anything. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102492 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-28 07:10:39 +00:00
Devang Patel
0f9d952542 Ignore DBG_VALUE instructions that points to undef values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102463 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-27 20:54:45 +00:00
Evan Cheng
ac7eae5b89 - When legal, promote a load to zextload rather than ext load. 
- Catch more further dag combine opportunities as result of operand promotion, e.g. (i32 anyext (i16 trunc (i32 x))) -> (i32 x)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102455 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-27 19:48:13 +00:00
Dale Johannesen
fc0b860bcc Revert a small part of 102372; this fixes at least one 
of the dbg testsuite regressions.  I don't think this is
really the right fix; this change exposed an existing problem
upstream somewhere.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102410 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-27 02:10:05 +00:00
Bob Wilson
cc7354e993 Avoid adding a null MD node operand, which crashes with "-debug" when trying 
to print the operand.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102395 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-26 22:56:56 +00:00
Dale Johannesen
925965e6ba Remove crufty comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102380 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-26 20:48:54 +00:00
Dale Johannesen
fdb42fa5fe Add DBG_VALUE handling for byval parameters; this 
produces a comment on targets that support it, but
the Dwarf writer is not hooked up yet.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102372 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-26 20:06:49 +00:00
Evan Cheng
962021bc7f - Move TargetLowering::EmitTargetCodeForFrameDebugValue to TargetInstrInfo and rename it to emitFrameIndexDebugValue. 
- Teach spiller to modify DBG_VALUE instructions to reference spill slots.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102323 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-26 07:38:55 +00:00
Dale Johannesen
f822e733af Stop abusing EmitInstrWithCustomInserter for target-dependent 
form of DEBUG_VALUE, as it doesn't have reasonable default
behavior for unsupported targets.  Add a new hook instead.
No functional change.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102320 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-25 21:33:54 +00:00
Dale Johannesen
7dc7840850 Add comment re byval args. Doesn't actually work this way yet. 
xs


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102316 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-25 21:03:54 +00:00
Evan Cheng
95c57ea182 When a load operand is promoted to an extload, replace other uses with uses of extload result truncated. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102236 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-24 04:43:44 +00:00
Dan Gohman
a7bcef1bce Apply a fix for a vector setcc dagcombine from Jan Sjodin. No 
testcase yet, as the testcase now fails downstream.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102228 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-24 01:17:30 +00:00
Evan Cheng
caf7740f96 Code refactoring. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102202 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-23 19:10:30 +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