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3357 Commits

Author SHA1 Message Date
Evan Cheng
21a7c64466 Allow any MachineBasicBlock (not just the entry block) to have live-in physical 
registers. Make sure liveinterval analysis is correctly creating live ranges
for them.

llvm-svn: 34217
 2007-02-13 01:30:55 +00:00
Chris Lattner
9ea0b706d9 Fix switch lowering to order cases in zext order, which is how we emit the 
comparisons.  This fixes an infinite loop on CodeGen/Generic/switch-lower.ll
and PR1197

llvm-svn: 34216
 2007-02-13 01:05:56 +00:00
Chris Lattner
7223d491cb eliminate temporary vectors. 
llvm-svn: 34161
 2007-02-10 20:31:59 +00:00
Chris Lattner
109373538b encapsulate the rest of the StructLayout members. 
llvm-svn: 34157
 2007-02-10 19:59:22 +00:00
Chris Lattner
9dafd9fe90 Privatize StructLayout::MemberOffsets, adding an accessor 
llvm-svn: 34156
 2007-02-10 19:55:17 +00:00
Evan Cheng
a86214b294 Add function live-ins to entry block live-in set. 
llvm-svn: 34112
 2007-02-10 02:43:39 +00:00
Evan Cheng
6dc088ffd4 Add live-ins to MachineBasicBlock. 
llvm-svn: 34111
 2007-02-10 02:38:19 +00:00
Evan Cheng
14f837357e Rename some variables to avoid confusion with SelectionDAGISel::BB. 
llvm-svn: 34110
 2007-02-10 01:08:18 +00:00
Evan Cheng
14f4a6715d Make use of TLI.SimplifySetCC() in LegalizeSetCCOperands(). 
llvm-svn: 34066
 2007-02-08 22:16:19 +00:00
Evan Cheng
1b155ac243 Move SimplifySetCC to TargetLowering and allow it to be shared with legalizer. 
llvm-svn: 34065
 2007-02-08 22:13:59 +00:00
Evan Cheng
96b886b846 Fixed a long standing spiller bug that's exposed by Thumb: 
The code sequence before the spiller is something like:
                 = tMOVrr
        %reg1117 = tMOVrr
        %reg1078 = tLSLri %reg1117, 2

The it starts spilling:
        %r0 = tRestore <fi#5>, 0
        %r1 = tRestore <fi#7>, 0
        %r1 = tMOVrr %r1<kill>
        tSpill %r1, <fi#5>, 0
        %reg1078 = tLSLri %reg1117, 2

It restores the value while processing the first tMOVrr. At this point, the
spiller remembers fi#5 is available in %r0. Next it processes the second move.
It restores the source before the move and spills the result afterwards. The
move becomes a noop and is deleted. However, a spill has been inserted and that
should invalidate reuse of %r0 for fi#5 and add reuse of %r1 for fi#5.
Therefore, %reg1117 (which is also assigned fi#5) should get %r1, not %r0.

llvm-svn: 34039
 2007-02-08 06:04:54 +00:00
Bill Wendling
ccf772cc6b Split the addPassesToEmitFile method up into two. This is so that we can 
do some common stuff, then on our own add an object file writer (by calling
a concrete function), and then do some finishing stuff, if need be.

llvm-svn: 34032
 2007-02-08 01:36:53 +00:00
Bill Wendling
55a2facbf9 Add function to create a file writer. 
llvm-svn: 34031
 2007-02-08 01:35:27 +00:00
Bill Wendling
48653bfaa4 Moved from include/llvm/CodeGen to lib/CodeGen. 
llvm-svn: 34027
 2007-02-08 01:30:50 +00:00
Nate Begeman
fe7a46c1e1 Fix a fixme by correctly calculating preferred alignments for functions, 
based on the alignment of the symbol and the target data's preferred align
for that type.

Also, rename some arguments for consistency.

llvm-svn: 33984
 2007-02-07 05:47:16 +00:00
Chris Lattner
c0fcd78ca0 Two fixes: 
1. Memset takes an i32 for the value to set, not i8.  This was causing GCC to
   ICE all over the place (PR1183).
2. memcpy/memmove were not properly zext/trunc'ing the size in some cases.

llvm-svn: 33970
 2007-02-06 19:06:38 +00:00
Chris Lattner
fc117b2338 Fix PR1181 and CodeGen/CBackend/2007-02-05-memset.ll 
llvm-svn: 33957
 2007-02-06 06:07:51 +00:00
Chris Lattner
775422640b Oops, swap this. This fixes a regression I introduced in the ARM backend. 
llvm-svn: 33946
 2007-02-06 01:56:31 +00:00
Chris Lattner
b9788ffe38 Fix PR1178 
llvm-svn: 33924
 2007-02-05 21:23:52 +00:00
Anton Korobeynikov
a4e7de7c93 Fixing silly "not-implemented" bug in AsmPrinter. This fixes PR1169. 
llvm-svn: 33888
 2007-02-04 23:27:42 +00:00
Chris Lattner
15fb4ef992 switch the VRBaseMap in the scheduler from an std::map to a DenseMap. This 
speeds up the isel pass from 2.5570s to 2.4722s on kc++ (3.4%).

llvm-svn: 33879
 2007-02-04 08:47:20 +00:00
Chris Lattner
59d7c680b5 Introduce new UnarySDNode/BinarySDNode/TernarySDNode nodes, which coallocate 
their operands with the node itself.  This reduces malloc traffic for operand
lists.  This reduces isel time on kc++ from 2.6164 to 2.5570s, about 2.3%.

llvm-svn: 33878
 2007-02-04 08:35:21 +00:00
Chris Lattner
dcdf1edd93 eliminate the SDNode::setValueTypes method. 
llvm-svn: 33876
 2007-02-04 07:37:24 +00:00
Chris Lattner
2b6734a983 eliminate a bunch of duplicate ctors and helper functions. 
llvm-svn: 33875
 2007-02-04 07:28:00 +00:00
Chris Lattner
8bbd45cd6e move MorphNode to out of line and merge setNodeOperands into it. There is 
no behavior or performance change here.

llvm-svn: 33869
 2007-02-04 02:49:29 +00:00
Chris Lattner
ccd1f36346 simplify MorphNodeTo to take a VTList operand. 
llvm-svn: 33868
 2007-02-04 02:41:42 +00:00
Chris Lattner
7e8b8e7a68 eliminate some extraneous methods in SDNode 
llvm-svn: 33867
 2007-02-04 02:32:44 +00:00
Chris Lattner
f3b4a0cc95 Give each selectiondag node class a home for it's vtable and rtti info 
llvm-svn: 33866
 2007-02-04 02:23:32 +00:00
Chris Lattner
1d3dd991ca Switch VAlueMap from std::map to DenseMap. 
llvm-svn: 33863
 2007-02-04 01:35:11 +00:00
Chris Lattner
e5eccb6d76 Switch NodeMap from std::map to DenseMap, this speeds up isel by 2.3% 
llvm-svn: 33862
 2007-02-04 01:31:47 +00:00
Chris Lattner
4ca925808f swtich vector-> smallvector, speeding up selectiondag stuff 1% 
llvm-svn: 33861
 2007-02-04 01:20:02 +00:00
Chris Lattner
135ccecbfb Switch promoted/expanded ops over to using a DenseMap. Vector related maps 
aren't worth it.

llvm-svn: 33860
 2007-02-04 01:17:38 +00:00
Chris Lattner
703db6bfd8 switch LegalizedNodes from std::map to a DenseMap. This speeds up isel 
time as a whole on kc++ by 11%.

llvm-svn: 33857
 2007-02-04 00:50:02 +00:00
Chris Lattner
3ff6e94719 Eliminate some malloc traffic from LegalizeAllNodesNotLeadingTo, speeding 
up isel on kimwitu by 0.7%.

llvm-svn: 33853
 2007-02-04 00:27:56 +00:00
Chris Lattner
6af2a892de Eliminate some std::sets. This speeds up isel of kimwitu by about 0.9% 
llvm-svn: 33852
 2007-02-04 00:24:41 +00:00
Chris Lattner
ff53aecb1a Switch SelectionDAG::ReplaceAllUsesOfValueWith to use a SmallSetVector for 
the users set (most nodes have 1 or 2 users).  This speeds up the isel pass
3.2% on kimwitu.

llvm-svn: 33849
 2007-02-04 00:14:31 +00:00
Bill Wendling
2a34ef4219 Pass in non-Mach-O-specific parameters to the GetTargetRelocation method. 
llvm-svn: 33816
 2007-02-03 02:39:40 +00:00
Chris Lattner
b35593a1c5 switch the sched unit map over to use a DenseMap instead of std::map. This 
speeds up isel as a whole time by 2.6%.

llvm-svn: 33810
 2007-02-03 01:34:13 +00:00
Chris Lattner
f1b9b2068c Switch ComputeTopDownOrdering over to using a densemap. This speeds up 
isel as a whole by 3.3%.

llvm-svn: 33809
 2007-02-03 01:12:36 +00:00
Evan Cheng
99236f5cfe Pasto 
llvm-svn: 33806
 2007-02-03 00:43:46 +00:00
Reid Spencer
05c293d1f0 Use short form of BinaryOperator create function. 
llvm-svn: 33784
 2007-02-02 14:09:34 +00:00
Reid Spencer
591bfa1e0b Changes to support making the shift instructions be true BinaryOperators. 
This feature is needed in order to support shifts of more than 255 bits
on large integer types.  This changes the syntax for llvm assembly to
make shl, ashr and lshr instructions look like a binary operator:
   shl i32 %X, 1
instead of
   shl i32 %X, i8 1
Additionally, this should help a few passes perform additional optimizations.

llvm-svn: 33776
 2007-02-02 02:16:23 +00:00
Jim Laskey
56f947d112 Slip up 
llvm-svn: 33758
 2007-02-01 17:48:20 +00:00
Jim Laskey
13d6220cbb Emit labels as label_n and not as debug_n 
llvm-svn: 33757
 2007-02-01 17:46:10 +00:00
Jim Laskey
52a12383a4 Support for non-landing pad exception handling. 
llvm-svn: 33755
 2007-02-01 16:31:34 +00:00
Anton Korobeynikov
c469cbc2e7 Fixed uninitialized stuff inside LegalizeDAG. Fortunately, the only 
affected part is codegen of "memove" inside x86 backend. This fixes
PR1144

llvm-svn: 33752
 2007-02-01 08:39:52 +00:00
Chris Lattner
a24a3aaa94 rename DenseMap to IndexedMap. 
llvm-svn: 33749
 2007-02-01 05:32:05 +00:00
Chris Lattner
36dbbd2550 Fit in 80 columns 
llvm-svn: 33745
 2007-02-01 04:55:59 +00:00
Chris Lattner
18483c395e Emit a better assertion message for PR1133 
llvm-svn: 33736
 2007-02-01 01:21:12 +00:00
Evan Cheng
3ec2e08a37 Allow the target to override the ISD::CondCode that's to be used to test the 
result of the comparison libcall against zero.

llvm-svn: 33701
 2007-01-31 09:29:11 +00:00
Reid Spencer
19af04a142 For PR1136: Rename GlobalVariable::isExternal as isDeclaration to avoid 
confusion with external linkage types.

llvm-svn: 33663
 2007-01-30 20:08:39 +00:00
Chris Lattner
ad740ef059 add initial support for handling inline asms with multiple constraints. 
This doesn't do the "right thing" but will probably work in most cases.

This implements CodeGen/PowerPC/2007-01-29-lbrx-asm.ll.

llvm-svn: 33643
 2007-01-29 23:45:14 +00:00
Jim Laskey
fc450bfd0d Out of line function. 
llvm-svn: 33641
 2007-01-29 23:40:33 +00:00
Jim Laskey
6f5d7d292f Only gather frame info if debug or eh. 
llvm-svn: 33639
 2007-01-29 23:20:22 +00:00
Nate Begeman
dc46021355 Finish off bug 680, allowing targets to custom lower frame and return 
address nodes.

llvm-svn: 33636
 2007-01-29 22:58:52 +00:00
Nate Begeman
05e9fd0443 Properly support cstrings 
llvm-svn: 33629
 2007-01-29 21:20:42 +00:00
Jim Laskey
705f60ece9 Flag to control exception handling. 
llvm-svn: 33628
 2007-01-29 20:48:32 +00:00
Jim Laskey
de395c4f96 Disable zero landing pads for now. 
llvm-svn: 33625
 2007-01-29 20:01:41 +00:00
Jim Laskey
eba0cf04e5 Landing pad-less eh for PPC. 
llvm-svn: 33622
 2007-01-29 18:51:14 +00:00
Reid Spencer
6609da2af4 Use TargetData to obtain the correct size of the "size_t" argument for 
functions like memcpy, memmove and memset. Ensure only one prototype is
used for these functions and that it matches the system definition by
using the appropriate type for the size argument.

llvm-svn: 33618
 2007-01-29 17:42:06 +00:00
Reid Spencer
aedb35e9bf For PR1138: 
Force memcpy to be the 32-bit variant. Since this is only used with
CBE and lli which both target 32-bit machines, this should be okay.

llvm-svn: 33608
 2007-01-28 22:28:00 +00:00
Anton Korobeynikov
95a00ad495 Arguments are counting from 1. not from 0. Maybe we should change 
numbering somehow? E.g. make return argument the last?

llvm-svn: 33606
 2007-01-28 18:01:49 +00:00
Anton Korobeynikov
f2a1c60bb4 More cleanup 
llvm-svn: 33605
 2007-01-28 16:04:40 +00:00
Anton Korobeynikov
611d5e2eda Propagate changes from my local tree. This patch includes: 
1. New parameter attribute called 'inreg'. It has meaning "place this
parameter in registers, if possible". This is some generalization of
gcc's regparm(n) attribute. It's currently used only in X86-32 backend.
2. Completely rewritten CC handling/lowering code inside X86 backend.
Merged stdcall + c CCs and fastcall + fast CC.
3. Dropped CSRET CC. We cannot add struct return variant for each
target-specific CC (e.g. stdcall + csretcc and so on).
4. Instead of CSRET CC introduced 'sret' parameter attribute. Setting in
on first attribute has meaning 'This is hidden pointer to structure
return. Handle it gently'.
5. Fixed small bug in llvm-extract + add new feature to
FunctionExtraction pass, which relinks all internal-linkaged callees
from deleted function to external linkage. This will allow further
linking everything together.

NOTEs: 1. Documentation will be updated soon.
       2. llvm-upgrade should be improved to translate csret => sret.
          Before this, there will be some unexpected test fails.
llvm-svn: 33597
 2007-01-28 13:31:35 +00:00
Bill Wendling
cf51d8e9d0 Use TargetELFWriterInfo class. 
llvm-svn: 33573
 2007-01-27 02:55:44 +00:00
Nate Begeman
481b84a66b Handle multiple functions, properly mangle symbols, and fix support for 
scattered relocations.

llvm-svn: 33555
 2007-01-26 22:39:48 +00:00
Jim Laskey
fdc04d1ea7 rename files 
llvm-svn: 33552
 2007-01-26 21:38:26 +00:00
Jim Laskey
64f4242072 Change the MachineDebugInfo to MachineModuleInfo to better reflect usage 
for debugging and exception handling.

llvm-svn: 33550
 2007-01-26 21:22:28 +00:00
Jim Laskey
23ed7d2625 Make LABEL a builtin opcode. 
llvm-svn: 33537
 2007-01-26 14:34:52 +00:00
Jim Laskey
3df3e04941 Clarify some constants. 
llvm-svn: 33536
 2007-01-26 14:19:17 +00:00
Evan Cheng
b64363a085 Added a MRegisterInfo hook that tells PEI the target is responsible for 
rounding the stack frame to a multiple of stack alignment.

llvm-svn: 33504
 2007-01-25 22:12:41 +00:00
Jim Laskey
56316d12bb 1. Remove dwarf-verbose option (now asm-verbose.) 
2. Clean up end of lines.

llvm-svn: 33499
 2007-01-25 15:45:58 +00:00
Jim Laskey
0e387f9cf0 Migrate print routines to asm to be shared by exception handling. 
llvm-svn: 33498
 2007-01-25 15:12:02 +00:00
Jim Laskey
a67f14502d Repair debug frames as a prelude to eh_frames. Switched to using MachineMoves 
by value so that clean up is less confusing (these vectors tend to be small.)

llvm-svn: 33488
 2007-01-24 18:45:13 +00:00
Jim Laskey
dabb50be28 Use asm printer to emit alignment 
llvm-svn: 33485
 2007-01-24 13:12:32 +00:00
Bill Wendling
c0ecd3ff91 Make ivars private and use getters. Have the MachOWriter return "Mach-O 
Writer" for the pass name.

llvm-svn: 33483
 2007-01-24 07:13:56 +00:00
Evan Cheng
bfd7e70770 Renamed getTypeAlignmentShift() to getPreferredTypeAlignmentShift(). 
llvm-svn: 33482
 2007-01-24 07:03:39 +00:00
Bill Wendling
d6f818e2fa Use the TargetMachOWriterInfo class to get this information. 
llvm-svn: 33478
 2007-01-24 03:38:47 +00:00
Evan Cheng
b6a4a7f72a PEI is now responsible for adding MaxCallFrameSize to frame size and align the stack. Each target can further adjust the frame size if necessary. 
llvm-svn: 33460
 2007-01-23 09:38:11 +00:00
Chris Lattner
c2b21d2900 Switch this to use SmallSet to avoid mallocs in the common case. 
llvm-svn: 33457
 2007-01-23 00:59:48 +00:00
Chris Lattner
f830aab43a Fix a bunch of inline asm failures 
llvm-svn: 33454
 2007-01-23 00:36:17 +00:00
Evan Cheng
cea1d1c5f8 Remove the DoubleTy special case. 
llvm-svn: 33449
 2007-01-22 23:13:55 +00:00
Reid Spencer
e33c18f4d2 For PR970: 
Clean up handling of isFloatingPoint() and dealing with PackedType.
Patch by Gordon Henriksen!

llvm-svn: 33415
 2007-01-21 00:29:26 +00:00
Chris Lattner
9df9e3e57b Teach TargetData to handle 'preferred' alignment for each target, and use 
these alignment amounts to align scalars when we can.  Patch by Scott Michel!

llvm-svn: 33409
 2007-01-20 22:35:55 +00:00
Evan Cheng
ae02dfb090 Fix for PR1108: type of insert_vector_elt index operand is PtrVT, not MVT::i32. 
llvm-svn: 33398
 2007-01-20 10:10:26 +00:00
Evan Cheng
4e647ad333 Remove an unused variable. 
llvm-svn: 33396
 2007-01-20 09:21:54 +00:00
Evan Cheng
7e02b3a690 We not align the final stack slot but instead let the target do so in emitPrologue(). Each target can make adjustments to the stack frame and re-align the stack as it deem appropriate. Do not align it twice which can end up wasting stack space. 
llvm-svn: 33387
 2007-01-20 02:07:13 +00:00
Evan Cheng
60dd79e443 GetRegForReload() now keeps track which registers have been considered and rejected during its quest to find a suitable reload register. This avoids an infinite loop in case like this: 
t1 := op t2, t3
  t2 <- assigned r0 for use by the reload but ended up reuse r1
  t3 <- assigned r1 for use by the reload but ended up reuse r0
  t1 <- desires r1
        sees r1 is taken by t2, tries t2's reload register r0
        sees r0 is taken by t3, tries t3's reload register r1
        sees r1 is taken by t2, tries t2's reload register r0 ...

llvm-svn: 33382
 2007-01-19 22:40:14 +00:00
Reid Spencer
14b42c0040 For PR1043: 
This is the final patch for this PR. It implements some minor cleanup
in the use of IntegerType, to wit:
1. Type::getIntegerTypeMask -> IntegerType::getBitMask
2. Type::Int*Ty changed to IntegerType* from Type*
3. ConstantInt::getType() returns IntegerType* now, not Type*

This also fixes PR1120.

Patch by Sheng Zhou.

llvm-svn: 33370
 2007-01-19 21:13:56 +00:00
Evan Cheng
ced4fcb608 Remove this xform: 
(shl (add x, c1), c2) -> (add (shl x, c2), c1<<c2)
Replace it with:
(add (shl (add x, c1), c2), ) -> (add (add (shl x, c2), c1<<c2), )

This fixes test/CodeGen/ARM/smul.ll

llvm-svn: 33361
 2007-01-19 17:51:44 +00:00
Bill Wendling
af4f1b8791 Have the OutputBuffer take the is64Bit and isLittleEndian booleans. 
llvm-svn: 33316
 2007-01-18 01:23:11 +00:00
Chris Lattner
e0c1ba6269 add new JumpTableSpecialLabelPrefix hook to asmprinter for jumptable emission. 
llvm-svn: 33314
 2007-01-18 01:12:56 +00:00
Bill Wendling
9306626c66 Changed to use the OutputBuffer instead of the methods in MachO and ELF 
writers.

llvm-svn: 33311
 2007-01-17 22:22:31 +00:00
Bill Wendling
6cf6bb2d24 Revert patch. 
llvm-svn: 33298
 2007-01-17 09:06:13 +00:00
Bill Wendling
ad6ddaa316 Use the methods in the TargetObjInfo object instead of internal methods. 
llvm-svn: 33289
 2007-01-17 03:49:21 +00:00
Chris Lattner
3af776359d Fix PR1114 and CodeGen/Generic/2007-01-15-LoadSelectCycle.ll by being 
careful when folding "c ? load p : load q" that C doesn't reach either load.
If so, folding this into load (c ? p : q) will induce a cycle in the graph.

llvm-svn: 33251
 2007-01-16 05:59:59 +00:00
Chris Lattner
7560c5f913 add options to view the dags before the first or second pass of dag combine. 
llvm-svn: 33249
 2007-01-16 04:55:25 +00:00
Bill Wendling
cfdd717db5 Fix for PR1095: 
LLVM would miscompile ASM dialects when compiling for PPC. Added dialects for
the X86 and PPC backends. It defaults to "0", the first variant of a compound
inline asm expression.

llvm-svn: 33246
 2007-01-16 03:42:04 +00:00
Chris Lattner
c5e1611848 rename Type::isIntegral to Type::isInteger, eliminating the old Type::isInteger. 
rename Type::getIntegralTypeMask to Type::getIntegerTypeMask.

This makes naming much more consistent.  For example, there are now no longer any
instances of IntegerType that are not considered isInteger! :)

llvm-svn: 33225
 2007-01-15 02:27:26 +00:00
Chris Lattner
f48900e322 eliminate calls to Type::isInteger, preferring isIntegral instead. 
llvm-svn: 33222
 2007-01-15 02:03:16 +00:00