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301 Commits

Author SHA1 Message Date
Bill Wendling
b02eadf660 Temporarily XFAIL this test. 
llvm-svn: 66866
 2009-03-13 04:37:11 +00:00
Bill Wendling
c6869f4695 Pass in a std::string when getting the names of debugging things. This cuts down 
on the number of times a std::string is created and copied.

llvm-svn: 66396
 2009-03-09 05:04:40 +00:00
Evan Cheng
86673f2806 Clean up dwarf writer, part 1. This eliminated the horrible recursive getGlobalVariablesUsing and replaced it something readable. It eliminated use of slow UniqueVector and replaced it with StringMap, SmallVector, and DenseMap, etc. It also fixed some non-deterministic behavior. 
This is a very minor compile time win.

llvm-svn: 65438
 2009-02-25 07:04:34 +00:00
Bill Wendling
c5437ea429 Overhaul my earlier submission due to feedback. It's a large patch, but most of 
them are generic changes.

- Use the "fast" flag that's already being passed into the asm printers instead
  of shoving it into the DwarfWriter.

- Instead of calling "MI->getParent()->getParent()" for every MI, set the
  machine function when calling "runOnMachineFunction" in the asm printers.

llvm-svn: 65379
 2009-02-24 08:30:20 +00:00
Bill Wendling
786c5973f7 - Use the "Fast" flag instead of "OptimizeForSize" to determine whether to emit 
a DBG_LABEL or not. We want to fall back to the original way of emitting debug
  info when we're in -O0/-fast mode.
- Add plumbing in to pass the "Fast" flag to places that need it.
- XFAIL DebugInfo/deaddebuglabel.ll. This is finding 11 labels instead of 8. I
  need to investigate still.

llvm-svn: 65367
 2009-02-24 02:35:30 +00:00
Bill Wendling
65c0fd4c44 Revert this. It was breaking stuff. 
llvm-svn: 64428
 2009-02-13 02:16:35 +00:00
Bill Wendling
1c21ac3066 Turn off the old way of handling debug information in the code generator. Use 
the new way, where all of the information is passed on SDNodes and machine
instructions.

llvm-svn: 64427
 2009-02-13 02:01:04 +00:00
Chris Lattner
90880e2598 make fast isel fall back to selectiondags for VLA llvm.declare intrinsics. 
llvm-svn: 64379
 2009-02-12 17:23:20 +00:00
Bill Wendling
e3c78361d3 Create DebugLoc information in FastISel. Several temporary methods were 
created. Specifically, those BuildMIs which use
"DebugLoc::getUnknownLoc()". I'll remove them soon.

llvm-svn: 63584
 2009-02-03 00:55:04 +00:00
Evan Cheng
4a0bf66eb8 Eliminate a couple of fields from TargetRegisterClass: SubRegClasses and SuperRegClasses. These are not necessary. Also eliminate getSubRegisterRegClass and getSuperRegisterRegClass. These are slow and their results can change if register file names change. Just use TargetLowering::getRegClassFor() to get the right TargetRegisterClass instead. 
llvm-svn: 62762
 2009-01-22 09:10:11 +00:00
Devang Patel
44afc82ebe Verify debug info. 
llvm-svn: 62545
 2009-01-19 23:21:49 +00:00
Devang Patel
76d190cf4a Validate dbg_* intrinsics before lowering them. 
llvm-svn: 62286
 2009-01-15 23:41:32 +00:00
Devang Patel
5c6e1e3b7d Use DebugInfo interface to lower dbg_* intrinsics. 
llvm-svn: 62127
 2009-01-13 00:35:13 +00:00
Duncan Sands
dc020f9c3c Rename getABITypeSize to getTypePaddedSize, as 
suggested by Chris.

llvm-svn: 62099
 2009-01-12 20:38:59 +00:00
Dan Gohman
4c31524bec Factor out the code for sign-extending/truncating gep indices 
and use it in x86 address mode folding. Also, make
getRegForValue return 0 for illegal types even if it has a
ValueMap for them, because Argument values are put in the
ValueMap. This fixes PR3181.

llvm-svn: 60696
 2008-12-08 07:57:47 +00:00
Evan Cheng
a8fd1f2c8e Eliminate some unused variable compile time warnings. 
llvm-svn: 59952
 2008-11-24 07:09:49 +00:00
Devang Patel
8af0a362f1 Emit label for llvm.dbg.func.start of the inlined function. 
llvm-svn: 58814
 2008-11-06 21:28:20 +00:00
Dan Gohman
e7ced74558 FastISel support for exception-handling constructs. 
- Move the EH landing-pad code and adjust it so that it works
   with FastISel as well as with SDISel.
 - Add FastISel support for @llvm.eh.exception and
   @llvm.eh.selector.

llvm-svn: 57539
 2008-10-14 23:54:11 +00:00
Chris Lattner
c52af45304 calls can be supported. 
llvm-svn: 57428
 2008-10-13 01:59:13 +00:00
Dale Johannesen
4f0bd68cfe Add a "loses information" return value to APFloat::convert 
and APFloat::convertToInteger.  Restore return value to
IEEE754.  Adjust all users accordingly.

llvm-svn: 57329
 2008-10-09 23:00:39 +00:00
Dan Gohman
c1d47c56f9 Avoid emitting redundant materializations of integer constants 
for things like null pointers, which at this level aren't
different from regular integer constants.

llvm-svn: 57265
 2008-10-07 22:03:27 +00:00
Dan Gohman
4e072a75cc Implement fast-isel support for zero-extending from i1. 
It turns out that this is a fairly common operation,
and it's easy enough to handle.

llvm-svn: 56990
 2008-10-03 01:28:47 +00:00
Dan Gohman
1ab1d31f7a Optimize conditional branches in X86FastISel. This replaces 
sequences like this:
       sete    %al
       testb   %al, %al
       jne     LBB11_1
with this:
       je      LBB11_1

llvm-svn: 56969
 2008-10-02 22:15:21 +00:00
Dan Gohman
b486350b15 Move the primary fast-isel top-level comments to FastISel.cpp, where 
they'll be a little more visible. Also, update and reword them a bit.

llvm-svn: 56877
 2008-09-30 20:48:29 +00:00
Dan Gohman
5e490a7567 Support for i1 XOR in FastISel. It is actually safe because 
i1 operands are assumed to already by zero-extended.

llvm-svn: 56615
 2008-09-25 17:22:52 +00:00
Dan Gohman
32a733e2c7 FastISel support for debug info. 
llvm-svn: 56610
 2008-09-25 17:05:24 +00:00
Dan Gohman
3663f156f7 Fix a recent fast-isel coverage regression - don't bail out before 
giving the target a chance to materialize constants.

llvm-svn: 56605
 2008-09-25 01:28:51 +00:00
Dan Gohman
918fe08a56 Arrange for FastISel code to have access to the MachineModuleInfo 
object. This will be needed to support debug info.

llvm-svn: 56508
 2008-09-23 21:53:34 +00:00
Dan Gohman
9801ba451a Refactor X86SelectConstAddr, folding it into X86SelectAddress. This 
results in better code for globals. Also, unbreak the local CSE for
GlobalValue stub loads.

llvm-svn: 56371
 2008-09-19 22:16:54 +00:00
Dan Gohman
940bafb687 FastISel support for i1 constants. 
llvm-svn: 56068
 2008-09-10 21:01:08 +00:00
Dan Gohman
39d82f902a Add X86FastISel support for static allocas, and refences 
to static allocas. As part of this change, refactor the
address mode code for laods and stores.

llvm-svn: 56066
 2008-09-10 20:11:02 +00:00
Owen Anderson
4a58bd331b Clean this up, based on Evan's suggestions. 
llvm-svn: 56009
 2008-09-09 20:47:17 +00:00
Owen Anderson
8529085f4f Check for type legality before materializing integer constants in fast isel. With this change, 
all of MultiSource/Applications passes on Darwin/X86 under FastISel.

llvm-svn: 55982
 2008-09-09 06:32:02 +00:00
Evan Cheng
1e97901388 Fix a constant lowering bug. Now we can do load and store instructions with funky getelementptr embedded in the address operand. 
llvm-svn: 55975
 2008-09-09 01:26:59 +00:00
Evan Cheng
e775d3526c Add fast isel physical register definition support. 
llvm-svn: 55892
 2008-09-08 08:38:20 +00:00
Evan Cheng
b9a0abb129 Indentation. 
llvm-svn: 55880
 2008-09-07 09:04:52 +00:00
Owen Anderson
1dd2e40521 Revert r55859. This is breaking the build in the abscence of its companion commit. 
llvm-svn: 55865
 2008-09-05 23:36:01 +00:00
Dan Gohman
fd634599dc FastISel support for AND and OR with type i1. 
llvm-svn: 55846
 2008-09-05 18:44:22 +00:00
Dan Gohman
fcf545690c FastISel support for ConstantExprs. 
llvm-svn: 55843
 2008-09-05 18:18:20 +00:00
Dan Gohman
ea56bdde34 FastISel support for unreachable. 
llvm-svn: 55818
 2008-09-05 01:08:41 +00:00
Owen Anderson
50288e3c99 Add initial support for selecting constant materializations that require constant 
pool loads on X86 in fast isel.  This isn't actually used yet.

llvm-svn: 55814
 2008-09-05 00:06:23 +00:00
Dan Gohman
e039d5580e Do trivial local CSE for constants and other non-Instruction values 
in FastISel.

llvm-svn: 55748
 2008-09-03 23:32:19 +00:00
Dan Gohman
7bda51f5a4 Create HandlePHINodesInSuccessorBlocksFast, a version of 
HandlePHINodesInSuccessorBlocks that works FastISel-style. This
allows PHI nodes to be updated correctly while using FastISel.

This also involves some code reorganization; ValueMap and
MBBMap are now members of the FastISel class, so they needn't
be passed around explicitly anymore. Also, SelectInstructions
is changed to SelectInstruction, and only does one instruction
at a time.

llvm-svn: 55746
 2008-09-03 23:12:08 +00:00
Owen Anderson
b1b9398ea7 Oops, I accidentally broke the fallback case with my last commit. 
llvm-svn: 55704
 2008-09-03 17:51:57 +00:00
Owen Anderson
ea666816c2 Fix an issue where we were reusing materializations of constants in blocks not dominated by the materialization. This is 
the simple fix, materializing the constant before every use.  It might be better to either track domination of uses or
to materialize all constants and the beginning of the function and let remat sort when to do materialization at uses.

llvm-svn: 55703
 2008-09-03 17:37:03 +00:00
Evan Cheng
09ff2e7372 80 col violations. 
llvm-svn: 55668
 2008-09-02 21:59:13 +00:00
Owen Anderson
6f0c51d9da Fix an issue where a use might be selected before a def, and then we didn't respect the pre-chosen vreg 
assignment when selecting the def.  This is the naive solution to the problem: insert a copy to the pre-chosen
vreg.  Other solutions might be preferable, such as:
  1) Passing the dest reg into FastEmit_.  However, this would require the higher level code to know about reg classes, which they don't currently.
  2) Selecting blocks in reverse postorder.  This has some compile time cost for computing the order, and we'd need to measure its impact.

llvm-svn: 55555
 2008-08-30 00:38:46 +00:00
Dan Gohman
c45733f194 Implement null and undef values for FastISel. 
llvm-svn: 55500
 2008-08-28 21:19:07 +00:00
Owen Anderson
d8a82b75e2 Hook up support for fast-isel of trunc instructions, using the newly working support for EXTRACT_SUBREG. 
llvm-svn: 55482
 2008-08-28 18:26:01 +00:00
Owen Anderson
9cd1a5e530 FastEmitInst_extractsubreg doesn't need to be passed the register class. It can get it from MachineRegisterInfo instead. 
llvm-svn: 55476
 2008-08-28 17:47:37 +00:00