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221 Commits

Author SHA1 Message Date
Dan Gohman
722f5fc567 Enable on-demand fast-isel. 
llvm-svn: 107377
 2010-07-01 02:58:57 +00:00
Dan Gohman
f91aff5f13 Do one lookup instead of two. 
llvm-svn: 106415
 2010-06-21 14:21:47 +00:00
Dan Gohman
7c58cf75fa Generalize this to look in the regular ValueMap in addition to 
the LocalValueMap, to make it more flexible when fast-isel isn't
proceding straight top-down.

llvm-svn: 106414
 2010-06-21 14:17:46 +00:00
Dan Gohman
8693650422 Teach regular and fast isel to set dead flags on unused implicit defs 
on calls and similar instructions.

llvm-svn: 106353
 2010-06-18 23:28:01 +00:00
Dan Gohman
f1d8304fe3 Eliminate unnecessary uses of getZExtValue(). 
llvm-svn: 106279
 2010-06-18 14:22:04 +00:00
Stuart Hastings
0125b6410a Add a DebugLoc parameter to TargetInstrInfo::InsertBranch(). This 
addresses a longstanding deficiency noted in many FIXMEs scattered
across all the targets.

This effectively moves the problem up one level, replacing eleven
FIXMEs in the targets with eight FIXMEs in CodeGen, plus one path
through FastISel where we actually supply a DebugLoc, fixing Radar
7421831.

llvm-svn: 106243
 2010-06-17 22:43:56 +00:00
Dan Gohman
ce3269b815 Do one map lookup instead of two. 
llvm-svn: 104645
 2010-05-25 21:59:42 +00:00
Dan Gohman
88fb253562 Fast ISel trivially coalesces away no-op casts, so check for this when 
setting kill flags.

llvm-svn: 103832
 2010-05-14 22:53:18 +00:00
Dan Gohman
5b510c1474 An Instruction has a trivial kill only if its use is in the same 
basic block.

llvm-svn: 103725
 2010-05-13 19:19:32 +00:00
Dan Gohman
1a1b51ff59 Add initial kill flag support to FastISel. 
llvm-svn: 103529
 2010-05-11 23:54:07 +00:00
Devang Patel
2ae3397536 Verify variable directly. 
llvm-svn: 103305
 2010-05-07 22:04:20 +00:00
Dan Gohman
e6d40166a8 Transfer debug location information from PHI nodes to resulting 
lowered copies.

llvm-svn: 103228
 2010-05-07 01:10:20 +00:00
Dan Gohman
779c69bbc5 Add a DebugLoc argument to TargetInstrInfo::copyRegToReg, so that it 
doesn't have to guess.

llvm-svn: 103194
 2010-05-06 20:33:48 +00:00
Dan Gohman
a7c717d8d4 In bottom-up mode, defer the materialization of local constant values. 
llvm-svn: 103139
 2010-05-06 00:02:14 +00:00
Dan Gohman
ffcb590b0f Add an "IsBottomUp" member function to FastISel, which will be used to 
support a new bottom-up mode.

llvm-svn: 103138
 2010-05-05 23:58:35 +00:00
Dan Gohman
626b5d8e0c 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.

llvm-svn: 102975
 2010-05-03 23:36:34 +00:00
Devang Patel
888c17073a While lowering dbg_declare, emit DBG_VALUE machine instruction if alloca matching llvm.dbg.declare intrinsic is missing. 
llvm-svn: 102513
 2010-04-28 19:27:33 +00:00
Dale Johannesen
1fc01985a3 Add comment re byval args. Doesn't actually work this way yet. 
xs

llvm-svn: 102316
 2010-04-25 21:03:54 +00:00
Dan Gohman
6e9a8fcc28 Move FastISel's HandlePHINodesInSuccessorBlocks call down into FastISel 
itself too.

llvm-svn: 102176
 2010-04-23 15:29:50 +00:00
Dan Gohman
c594eab10f Move HandlePHINodesInSuccessorBlocks functions out of SelectionDAGISel 
and into SelectionDAGBuilder and FastISel.

llvm-svn: 102123
 2010-04-22 20:46:50 +00:00
Dan Gohman
e149e9896c Fix a comment. 
llvm-svn: 102110
 2010-04-22 20:06:42 +00:00
Dan Gohman
f41ad478ca Don't send PHI nodes down to SelectionDAGBuilder of FastISel, since 
they end up doing nothing.

llvm-svn: 101904
 2010-04-20 15:00:41 +00:00
Dan Gohman
e450d7444d Sink DebugLoc handling out of SelectionDAGISel into FastISel and 
SelectionDAGBuilder, where it doesn't have to be as complicated.

llvm-svn: 101848
 2010-04-20 00:48:35 +00:00
Dan Gohman
bcaf681cde Add const qualifiers to CodeGen's use of LLVM IR constructs. 
llvm-svn: 101334
 2010-04-15 01:51:59 +00:00
Dan Gohman
7deb447781 Factor out EH landing pad code into a separate function, and constify 
a bunch of stuff to support it.

llvm-svn: 101273
 2010-04-14 19:53:31 +00:00
Dan Gohman
5f40d34958 Generalize this code to handle Instructions in addition to ConstantExprs. 
llvm-svn: 101210
 2010-04-14 02:33:23 +00:00
Dan Gohman
8a2dae57e2 Add a few comments. 
llvm-svn: 101148
 2010-04-13 17:07:06 +00:00
Dale Johannesen
5d7f0a0fdd Move printing of target-indepedent DEBUG_VALUE comments 
into AsmPrinter.  Target-dependent form is still generated
by FastISel and still handled in X86 code.

llvm-svn: 100596
 2010-04-07 01:15:14 +00:00
Chris Lattner
305f2efb63 unthread MMI from FastISel 
llvm-svn: 100416
 2010-04-05 06:05:26 +00:00
Chris Lattner
7cfa70e9b3 fastisel doesn't need DwarfWriter, remove some tendricles. 
llvm-svn: 100381
 2010-04-05 02:19:28 +00:00
Chris Lattner
915c5f9862 Switch the code generator (except the JIT) onto the new DebugLoc 
representation.  This eliminates the 'DILocation' MDNodes for 
file/line/col tuples from -O0 -g codegen.

This remove the old DebugLoc class, making it a typedef for DebugLoc,
I'll rename NewDebugLoc next.

I didn't update the JIT to use the new apis, so it will continue to
work, but be as slow as before.  Someone should eventually do this
or, better yet, rip out the JIT debug info stuff and build the JIT
on top of MC.

llvm-svn: 100209
 2010-04-02 19:42:39 +00:00
Chris Lattner
009de335ac add new apis for getting/setting !dbg metadata on 
instructions.  In addition to being a convenience,
they are faster than the old apis, particularly when
not going from an MDKindID like people should be
doing.

llvm-svn: 99982
 2010-03-31 03:34:40 +00:00
Daniel Dunbar
84b5ddc872 Remove dead include. 
llvm-svn: 98225
 2010-03-11 02:28:48 +00:00
Dale Johannesen
dd33104203 Move dbg_value generation to target-independent FastISel, 
as X86 is currently the only FastISel target.  Per review.

llvm-svn: 97255
 2010-02-26 20:01:55 +00:00
Dale Johannesen
3d1f1cccbb Fix comments to reflect renaming elsewhere. 
llvm-svn: 95730
 2010-02-10 00:11:11 +00:00
Chris Lattner
b06015aa69 move target-independent opcodes out of TargetInstrInfo 
into TargetOpcodes.h.  #include the new TargetOpcodes.h
into MachineInstr.  Add new inline accessors (like isPHI())
to MachineInstr, and start using them throughout the 
codebase.

llvm-svn: 95687
 2010-02-09 19:54:29 +00:00
Dale Johannesen
db2eb47835 After Victor's latest commits I am seeing null 
addresses in dbg.declare; ignore this for the
moment to prevent things from breaking.

llvm-svn: 95471
 2010-02-06 02:26:02 +00:00
Dale Johannesen
d5575f29f1 Generate DEBUG_VALUE comments on x86. The (limited) 
dbg.declare's we currently generate go through both
register allocators without perturbing the results.

llvm-svn: 94480
 2010-01-26 00:09:58 +00:00
Dale Johannesen
a3db6ef9a2 Revert 93811 per request. 
llvm-svn: 93818
 2010-01-19 00:10:52 +00:00
Dale Johannesen
0c90d43b70 Enable code to emit dbg.declare as DEBUG_VALUE 
comments (fast isel, X86).  This doesn't seem
to break any functionality, but will introduce
cases where -g affects the generated code.  I'll
be fixing that.

llvm-svn: 93811
 2010-01-18 23:34:55 +00:00
Victor Hernandez
b324e66f4c Improve llvm.dbg.declare intrinsic by referring directly to the storage in its first argument, via function-local metadata (instead of via a bitcast). 
This patch also cleans up code that expects there to be a bitcast in the first argument and testcases that call llvm.dbg.declare.
It also strips old llvm.dbg.declare intrinsics that did not pass metadata as the first argument.

llvm-svn: 93531
 2010-01-15 19:04:09 +00:00
Victor Hernandez
8d4904b639 Revert r93504 because older uses of llvm.dbg.declare intrinsics need to be auto-upgraded 
llvm-svn: 93515
 2010-01-15 17:36:47 +00:00
Victor Hernandez
5d6551816b Improve llvm.dbg.declare intrinsic by referring directly to the storage in its first argument, via function-local metadata (instead of via a bitcast). 
This patch also cleans up code that expects there to be a bitcast in the first argument and testcases that call llvm.dbg.declare.

llvm-svn: 93504
 2010-01-15 03:37:48 +00:00
Dan Gohman
f9d6d53823 Fix a typo in a comment. 
llvm-svn: 93227
 2010-01-12 04:30:26 +00:00
Dan Gohman
404a984780 Don't use the ISD::NodeType enum for SDNode opcodes, as CodeGen 
uses several kinds of opcode values which are not declared within
that enum. This fixes PR5946.

llvm-svn: 92794
 2010-01-05 22:26:32 +00:00
Devang Patel
33f80d2303 Delete renaming use of dead dbg intrinsics. 
Intrinsic::dbg_stoppoint
 Intrinsic::dbg_region_start
 Intrinsic::dbg_region_end
 Intrinsic::dbg_func_start

llvm-svn: 92672
 2010-01-05 01:47:06 +00:00
Chris Lattner
8e805be369 remove a bunch of unneeded functions. 
llvm-svn: 92263
 2009-12-29 09:32:19 +00:00
Chris Lattner
2f2aa2b067 This is a major cleanup of the instruction metadata interfaces that 
I asked Devang to do back on Sep 27.  Instead of going through the
MetadataContext class with methods like getMD() and getMDs(), just
ask the instruction directly for its metadata with getMetadata()
and getAllMetadata().

This includes a variety of other fixes and improvements: previously
all Value*'s were bloated because the HasMetadata bit was thrown into
value, adding a 9th bit to a byte.  Now this is properly sunk down to
the Instruction class (the only place where it makes sense) and it
will be folded away somewhere soon.

This also fixes some confusion in getMDs and its clients about 
whether the returned list is indexed by the MDID or densely packed.
This is now returned sorted and densely packed and the comments make
this clear.

This introduces a number of fixme's which I'll follow up on.

llvm-svn: 92235
 2009-12-28 23:41:32 +00:00
Chris Lattner
7093946ab1 rename getMDKind -> getMDKindID, make it autoinsert if an MD Kind 
doesn't exist already, eliminate registerMDKind.  Tidy up a bunch
of random stuff.

llvm-svn: 92225
 2009-12-28 20:45:51 +00:00
Bill Wendling
846ca9b38b Remove dead variable. 
llvm-svn: 92180
 2009-12-28 01:02:21 +00:00