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
Chris Lattner
044698b39a
Fix PR6921: globals were not getting correctly rounded up to their
...
preferred alignment unless they were common or some other special
case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102300 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-25 05:30:43 +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
314bf7cbbf
Revert 102135, 102129, 102127, 102106, 102104, 102102, 102012, 102004,
...
because 102004 causes codegen to emit invalid assembly on at least
x86_64-unknown-gnu-linux.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102155 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-23 01:18:53 +00:00
Devang Patel
c04d54527e
Add comment.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102129 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-22 20:56:35 +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
Devang Patel
18ee3bb0b7
Adjust debug range offsets for isWeakForLinker() functions.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102127 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-22 20:52:00 +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
Evan Cheng
07c4e1085d
- It's not safe to promote rotates (at least not trivially).
...
- Some code refactoring.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102111 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-22 20:19:46 +00:00
Dan Gohman
3b172f1c01
Fix a comment.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102110 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-22 20:06:42 +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
Devang Patel
f1dabde404
Rename InsnAfterLabelMap and InsnBeforeLabelMap.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102106 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-22 18:43:35 +00:00
Devang Patel
3547a88b50
Keep track of MCSymbol used to mark beginning of a function.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102104 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-22 18:39:21 +00:00
Devang Patel
bc655eaee0
At this point Start and End are not null.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102102 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-22 18:28:58 +00:00
Jakob Stoklund Olesen
a063e19593
Run LiveVariables instead of computing liveness locally in -regalloc=fast.
...
This actually makes everything slower, but the plan is to have isel add <kill>
flags the way it is already adding <dead> flags. Then LiveVariables can be
removed again.
When ignoring the time spent in LiveVariables, -regalloc=fast is now twice as
fast as -regalloc=local.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102034 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21 23:18:07 +00:00
Evan Cheng
e3dd8550c6
Do not try to optimize a copy that has already been marked for deletion.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102027 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21 20:57:54 +00:00
Devang Patel
708e474c2f
Add command line option to disable debug info printing in .s file. This option does not impact debug info generation and preservation through earlier compile starges.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102012 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21 19:08:53 +00:00
Jakob Stoklund Olesen
00207237dd
Add fast register allocator, enabled with -regalloc=fast.
...
So far this is just a clone of -regalloc=local that has been lobotomized to run
25% faster. It drops the least-recently-used calculations, and is just plain
stupid when it runs out of registers.
The plan is to make this go even faster for -O0 by taking advantage of the short
live intervals in unoptimized code. It should not be necessary to calculate
liveness when most virtual registers are killed 2-3 instructions after they are
born.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102006 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21 18:02:42 +00:00
Devang Patel
9cdb4109d5
Identify when a lexical scope is split in to multiple instruction ranges. Emit such ranges using DW_AT_ranges.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102004 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21 16:32:19 +00:00
Evan Cheng
e566763b19
Implement -disable-non-leaf-fp-elim which disable frame pointer elimination
...
optimization for non-leaf functions. This will be hooked up to gcc's
-momit-leaf-frame-pointer option. rdar://7886181
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101984 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21 03:18:23 +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
af5097537c
Update CMakeLists.txt.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101976 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21 01:32:29 +00:00
Dan Gohman
5eb6d65a27
Move several SelectionDAG-independent utility functions out of the
...
SelectionDAG directory and into a new Analysis.cpp file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101975 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21 01:22:34 +00:00
Evan Cheng
30fdb5c2ac
- Clean up some crappy code which deals with coalescing of copies which look at
...
extract_subreg / insert_subreg, etc.
- Add support for more aggressive insert_subreg coalescing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101971 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21 00:44:22 +00:00
Evan Cheng
3115698611
Rewrite machine cse to avoid recursion.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101964 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21 00:21:07 +00:00
Dan Gohman
bc7588eb68
Add another variant of this test which found a place where
...
CodeGen's ComputeMaskedBits was being over-conservative when computing
bits for an ADD.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101963 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21 00:19:28 +00:00
Dale Johannesen
7609017dc3
Because of the EMMS problem, right now we have to support
...
user-defined operations that use MMX register types, but
the compiler shouldn't generate them on its own. This adds
a Synthesizable abstraction to represent this, and changes
the vector widening computation so it won't produce MMX types.
(The motivation is to remove noise from the ABI compatibility
part of the gcc test suite, which has some breakage right now.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101951 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20 22:34:09 +00:00
Jakob Stoklund Olesen
9196ab6405
When MachineLICM is hoisting a physical register after regalloc, make sure the
...
register is not killed in the loop.
This fixes 188.ammp on ARM where the post-ra scheduler would grab a register
that looked available but wasn't.
A testcase would be huge and fragile, sorry.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101930 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20 18:45:47 +00:00
Evan Cheng
d6060a4ce9
Typo.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101914 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20 17:27:38 +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
d84e806dd4
Sink this use_empty() check into isUsedOutsideOfDefiningBlock.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101902 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20 14:50:13 +00:00
Dan Gohman
c025c85352
If a PHI node somehow has debug info, propogate it to the MachineInstr PHI.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101901 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20 14:48:02 +00:00
Dan Gohman
3f1403f14e
Don't iterate through the whole block just to find the PHI nodes.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101900 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20 14:46:25 +00:00
Gabor Greif
a9b2313c13
use abstract accessors to CallInst
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101899 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20 13:13:04 +00:00
Chris Lattner
44e05080f8
Bill's change in r95336 broke empty aggregates embedded
...
in other types. fix this by only bumping zero-byte globals
up to a single byte if the *entire global* is zero size,
fixing PR6340.
This also fixes empty arrays etc to be handled correctly,
and only does this on subsection-via-symbols targets (aka
darwin) which is the only place where this matters.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101879 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20 06:20:21 +00:00
Dan Gohman
8b1dbebc1e
Delete a redundant return statement.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101860 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20 01:58:20 +00:00
Bill Wendling
86c5abb4c0
The visitXOR method can return the same SDNode. If so, we don't want to delete
...
it as it's not dead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101855 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20 01:25:01 +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
66db3a0f10
Make BreakAntiDependencies' SUnits argument const, and make the Begin
...
and End arguments by-value rather than by-reference.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101830 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-19 23:11:58 +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