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Author SHA1 Message Date
Dale Johannesen
dce1b3cb2f Adjust loop per review feedback. 
llvm-svn: 46569
 2008-01-30 19:44:39 +00:00
Evan Cheng
07f3cd3242 A semi-gross fix for a debug info issue. When inserting the "function start" label (i.e. first label in the entry block) take care to insert it at the beginning of the block. 
llvm-svn: 46568
 2008-01-30 19:35:32 +00:00
Devang Patel
3467628b95 Supply appropriate arch info to darwin assembler. 
llvm-svn: 46567
 2008-01-30 19:19:31 +00:00
Dale Johannesen
916037c01a Accept getelementptr starting at GV with all 0 indices as a 
legitimate way of representing global variable GV in debug info.

llvm-svn: 46565
 2008-01-30 19:00:21 +00:00
Devang Patel
bfc534c67f Always put version numbers at the end because they are optional. 
llvm-svn: 46563
 2008-01-30 18:30:11 +00:00
Evan Cheng
918b9c9335 Even though InsertAtEndOfBasicBlock is an ugly hack it still deserves a proper name. Rename it to EmitInstrWithCustomInserter since it does not necessarily insert 
instruction at the end.

llvm-svn: 46562
 2008-01-30 18:18:23 +00:00
Devang Patel
1d270b0e12 Enable exception handling if it is supported. 
llvm-svn: 46560
 2008-01-30 17:43:03 +00:00
Dan Gohman
dd9be7d05e Add a new PseudoSourceValue class, which will be used to help track 
memory reference information in the backend. Most of this was written by
Florian Brander, cleanup and updating to TOT by me.

llvm-svn: 46556
 2008-01-30 16:35:31 +00:00
Nick Lewycky
ccd60a90c5 Remove a couple more cases of "getNumUses() == 0". No need to walk the linked 
list just to see if whether the list is empty.

llvm-svn: 46555
 2008-01-30 08:01:28 +00:00
Nick Lewycky
e3818dcc4e Use empty() instead of comparing size() with zero. 
llvm-svn: 46554
 2008-01-30 07:54:16 +00:00
Nick Lewycky
719599d263 Don't DCE FreeInst's. We were using those! Patch from Owen Anderson. 
llvm-svn: 46553
 2008-01-30 07:45:37 +00:00
Tanya Lattner
bfeb583bfb Pointers change size depending upon the target. Remove them to make the test more stable. 
llvm-svn: 46548
 2008-01-30 05:15:15 +00:00
Evan Cheng
84adda6b67 Skip over the label which marks the beginning of the function before inserting prologue code. 
llvm-svn: 46546
 2008-01-30 03:57:33 +00:00
Scott Michel
4a4f50da13 Back out mods to llvmAsmParser, incorrectly committed 
llvm-svn: 46545
 2008-01-30 03:10:00 +00:00
Scott Michel
ab3702fba9 More cleanups for CellSPU: 
- Expand tabs... (poss 80-col violations, will get them later...)
- Consolidate logic for SelectDFormAddr and SelectDForm2Addr into a single
  function, simplifying maintenance. Also reduced custom instruction
  generation for SPUvecinsert/INSERT_MASK.

llvm-svn: 46544
 2008-01-30 02:55:46 +00:00
Owen Anderson
ad9a347656 Make DSE much more aggressive by performing DCE earlier. Update a testcase to reflect this increased aggressiveness. 
llvm-svn: 46542
 2008-01-30 01:24:47 +00:00
Owen Anderson
7d21431939 Fix an issue where, under very specific circumstances, memdep could end up dereferencing the end 
of one of its internal maps.

llvm-svn: 46541
 2008-01-30 01:24:05 +00:00
Chris Lattner
83227e350d Fix a bug where scalarrepl would discard offset if type would match. 
In practice this can only happen on code with already undefined behavior, 
but this is still a good thing to handle correctly.

llvm-svn: 46539
 2008-01-30 00:39:15 +00:00
Dan Gohman
13d1327796 Factor the addressing mode and the load/store VT out of LoadSDNode 
and StoreSDNode into their common base class LSBaseSDNode. Member
functions getLoadedVT and getStoredVT are replaced with the common
getMemoryVT to simplify code that will handle both loads and stores.

llvm-svn: 46538
 2008-01-30 00:15:11 +00:00
Evan Cheng
618761903d Work in progress. This patch *fixes* x86-64 calls which are modelled as StructRet but really should be return in registers, e.g. _Complex long double, some 128-bit aggregates. This is a short term solution that is necessary only because llvm, for now, cannot model i128 nor call's with multiple results. 
Status: This only works for direct calls, and only the caller side is done. Disabled for now.

llvm-svn: 46527
 2008-01-29 19:34:22 +00:00
Evan Cheng
6a35d0f26e Update this test case. 
llvm-svn: 46526
 2008-01-29 19:30:05 +00:00
Duncan Sands
f451b75224 When expanding an operand, it's not the result value 
type that matters but the operand type.  This fixes
2008-01-08-IllegalCMP.ll which crashed with the new
legalize infrastructure because SETCC with result
type i8 and operand type i64 was being custom expanded
by the X86 backend.  With this fix, the gcc build gets
as far as the first libcall.

llvm-svn: 46525
 2008-01-29 19:29:08 +00:00
Chris Lattner
e08ec140e0 Don't let globalopt hack on volatile loads or stores. 
llvm-svn: 46523
 2008-01-29 19:01:37 +00:00
Ted Kremenek
acc17d1b24 Altered ctor for APSInt to accept an optional "isUnsigned" flag. Default 
behavior is unchanged.

llvm-svn: 46521
 2008-01-29 18:55:14 +00:00
Dan Gohman
aad233ea10 Use empty() instead of comparing size() with zero. 
llvm-svn: 46514
 2008-01-29 13:02:09 +00:00
Dan Gohman
630f3a713c Fix a typo in a comment. 
llvm-svn: 46513
 2008-01-29 12:43:50 +00:00
Dan Gohman
f5b35ce0f9 Update this file for 2.0 syntax. 
llvm-svn: 46512
 2008-01-29 12:35:50 +00:00
Dan Gohman
6f9748b626 Add comments describing what the loop depth values mean. Also, make a 
minor simplification to the loop depth calculation code.

llvm-svn: 46511
 2008-01-29 12:12:40 +00:00
Dan Gohman
241714222a Fix 80-col violations. 
llvm-svn: 46510
 2008-01-29 12:09:55 +00:00
Dan Gohman
daa38f69cf Remove top-level const qualifiers from casts, avoiding associated 
compiler warnings.

llvm-svn: 46509
 2008-01-29 12:08:20 +00:00
Dan Gohman
4463225e99 Fix a typo in a comment. 
llvm-svn: 46508
 2008-01-29 12:07:11 +00:00
Dan Gohman
c1c27c9fda Fix a typo in a comment. 
llvm-svn: 46507
 2008-01-29 12:06:33 +00:00
Dan Gohman
522401f26e Add explicit keywords. 
llvm-svn: 46506
 2008-01-29 11:36:12 +00:00
Chris Lattner
f898e3cc8f llvm.sqrt(-0.0) is defined. 
llvm-svn: 46500
 2008-01-29 07:00:44 +00:00
Chris Lattner
83f411c586 eliminate additions of 0.0 when they are obviously dead. This has to be careful to 
avoid turning -0.0 + 0.0 -> -0.0 which is incorrect.

llvm-svn: 46499
 2008-01-29 06:52:45 +00:00
Owen Anderson
2688087c9c Add a testcase for eliminating memcpy's at the end of functions. Forgot to commit this with my last commit. 
llvm-svn: 46497
 2008-01-29 06:40:32 +00:00
Chris Lattner
35f063e37c Add target triples to these so they don't fail on linux. 
llvm-svn: 46496
 2008-01-29 06:26:07 +00:00
Duncan Sands
390baa691d Use getPreferredAlignmentLog or getPreferredAlignment 
to get the alignment of global variables, rather than
using hand-made versions.

llvm-svn: 46495
 2008-01-29 06:23:44 +00:00
Owen Anderson
96b9e5423a Add support for eliminating memcpy's at the end of functions. Also fix some errors I noticed in 
the handling of eliminating stores to byval arguments.

llvm-svn: 46494
 2008-01-29 06:18:36 +00:00
Duncan Sands
47bcca5cea This would be better done as an executable test. 
llvm-svn: 46493
 2008-01-29 06:04:54 +00:00
Duncan Sands
84bc852b52 After recent changes we fail to optimize this test 
sufficiently to have it pass.  I'm removing it from
the testsuite and adding it to PR452 instead.

llvm-svn: 46492
 2008-01-29 05:57:23 +00:00
Owen Anderson
fc41146d15 RegAllocBigBlock doesn't need LiveVariables either. 
llvm-svn: 46488
 2008-01-29 02:32:13 +00:00
Scott Michel
81b8a391a6 Fix to bug 1951: tblgen gratuitously renames variables when no temporary was 
generated. This feature would only show up in fairly complex patterns, such
as this one in CellSPU:

  def : Pat<(add (SPUhi tconstpool:$in, 0), (SPUlo tconstpool:$in, 0)),
	    (IOHLlo (ILHUhi tconstpool:$in), tconstpool:$in)>;

which generated the following emit code:

SDNode *Emit_0(const SDOperand &N, unsigned Opc0, unsigned Opc1, MVT::ValueType VT0, MVT::ValueType VT1) DISABLE_INLINE {
  SDOperand N0 = N.getOperand(0);
  SDOperand N00 = N0.getOperand(0);
  SDOperand N01 = N0.getOperand(1);
  SDOperand N1 = N.getOperand(1);
  SDOperand N10 = N1.getOperand(0);
  SDOperand N11 = N1.getOperand(1);
  SDOperand Tmp3(CurDAG->getTargetNode(Opc0, VT0, N00), 0);
  return CurDAG->SelectNodeTo(N.Val, Opc1, VT1, Tmp3, Tmp2); /* Tmp2 s/b N00 */
}

Tested against the test suites without incident.

llvm-svn: 46487
 2008-01-29 02:29:31 +00:00
Nate Begeman
3eeac138f9 Properly expand extract-element for non-power-of-2 codegen 
llvm-svn: 46486
 2008-01-29 02:24:00 +00:00
Dale Johannesen
f12104ce4b Handle 'X' constraint in asm's better. 
llvm-svn: 46485
 2008-01-29 02:21:21 +00:00
Devang Patel
86ff705c22 Filter loops that subtract induction variables. 
These loops are not yet handled.

Fix PR 1912.

llvm-svn: 46484
 2008-01-29 02:20:41 +00:00
Scott Michel
dc780aeb57 Overhaul Cell SPU's addressing mode internals so that there are now 
only two addressing mode nodes, SPUaform and SPUindirect (vice the
three previous ones, SPUaform, SPUdform and SPUxform). This improves
code somewhat because we now avoid using reg+reg addressing when
it can be avoided. It also simplifies the address selection logic,
which was the main point for doing this.

Also, for various global variables that would be loaded using SPU's
A-form addressing, prefer D-form offs[reg] addressing, keeping the
base in a register if the variable is used more than once.

llvm-svn: 46483
 2008-01-29 02:16:57 +00:00
Devang Patel
51fde22367 New test. 
llvm-svn: 46479
 2008-01-29 01:10:04 +00:00
Bill Wendling
839e21bce4 Add test to make sure that #pragma mark/error doesn't error if there are 
unbalanced quotes.

llvm-svn: 46476
 2008-01-29 00:41:29 +00:00
Ted Kremenek
752475ffa1 Added destructor for template class FoldingSetNodeWrapper. 
Added getValue() to FoldingSetNodeWrapper.

llvm-svn: 46465
 2008-01-28 22:05:23 +00:00