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352de5aeb9
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3891 Commits

Author SHA1 Message Date
Dan Gohman
352de5aeb9 More explicit keywords. 
llvm-svn: 40757
 2007-08-02 21:21:54 +00:00
Chris Lattner
9319dfc93a don't redefine a parameter 
llvm-svn: 40748
 2007-08-02 18:08:16 +00:00
Evan Cheng
a06b9cf09f Do not emit copies for physical register output if it's not used. 
llvm-svn: 40722
 2007-08-02 05:29:38 +00:00
Scott Michel
199544367f Style police: Expand the tabs to spaces! 
llvm-svn: 40712
 2007-08-02 02:22:46 +00:00
Evan Cheng
14bd520741 Instead of adding copyfromreg's to handle physical definitions. Now isel can 
simply specify them as results and let scheduledag handle them. That
is, instead of
SDOperand Flag = DAG.getTargetNode(Opc, MVT::i32, MVT::Flag, ...)
SDOperand Result = DAG.getCopyFromReg(Chain, X86::EAX, MVT::i32, Flag)

Just write:
SDOperand Result = DAG.getTargetNode(Opc, MVT::i32, MVT::i32, ...)

And let scheduledag emit the move from X86::EAX to a virtual register.

llvm-svn: 40710
 2007-08-02 00:28:15 +00:00
Evan Cheng
d6d66f0cf4 Bugs: missing partial uses and redundant partial defs. 
llvm-svn: 40688
 2007-08-01 20:18:21 +00:00
Lauro Ramos Venancio
1ef30713de Expand unaligned loads/stores when the target doesn't support them. (PR1548) 
llvm-svn: 40682
 2007-08-01 19:34:21 +00:00
David Greene
f06a395bb9 New CallInst interface to address GLIBCXX_DEBUG errors caused by 
indexing an empty std::vector.

Updates to all clients.

llvm-svn: 40660
 2007-08-01 03:43:44 +00:00
Evan Cheng
8889a56947 simpleregistercoalescing -> regcoalescing. It's too long for me to handle. 
llvm-svn: 40654
 2007-07-31 22:37:44 +00:00
Scott Michel
c65b4c8eeb - Allow custom lowering for CTPOP, CTTZ, CTLZ. 
- Fixed an existing unexpanded tab.

llvm-svn: 40605
 2007-07-30 21:00:31 +00:00
Dan Gohman
375d541183 Fix a bug in getCopyFromParts turned up in the testcase for PR1132. 
llvm-svn: 40598
 2007-07-30 19:09:17 +00:00
Dan Gohman
555f611994 Print a space between the comment character and the basic block name, 
for prettiness.

llvm-svn: 40593
 2007-07-30 15:06:25 +00:00
Duncan Sands
e8bb2c6d32 Support for trampolines, except for X86 codegen which is 
still under discussion.

llvm-svn: 40549
 2007-07-27 12:58:54 +00:00
Christopher Lamb
55a1e36013 Move subreg lowering pass to be right after regalloc, per feedback. 
llvm-svn: 40548
 2007-07-27 07:36:14 +00:00
Dan Gohman
249090568d Fix the alias analysis query in DAGCombiner to not add in two 
offsets. The SrcValueOffset values are the real offsets from the
SrcValue base pointers.

llvm-svn: 40534
 2007-07-26 16:14:06 +00:00
Christopher Lamb
258dab5389 Add a MachineFunction pass, which runs post register allocation, that turns subreg insert/extract instruction into register copies. This ensures correct code gen if the coalescer isn't able to remove all subreg instructions. 
llvm-svn: 40521
 2007-07-26 08:18:32 +00:00
Christopher Lamb
08bcd5c0f8 Teach DAG scheduling how to properly emit subreg insert/extract machine instructions. PR1350 
llvm-svn: 40520
 2007-07-26 08:12:07 +00:00
Christopher Lamb
73c3cd47cc Add selection DAG nodes for subreg insert/extract. PR1350 
llvm-svn: 40516
 2007-07-26 07:34:40 +00:00
Christopher Lamb
cb63a77a51 Remove subreg index from MachineInstr's and also keep vregs as unsigned when adding operands. 
llvm-svn: 40514
 2007-07-26 07:00:46 +00:00
Christopher Lamb
b178ecbbc0 Fix infinite recursion for when extract_vector_elt is legal. Unfortunately no public targets use this code-path, so no test. 
llvm-svn: 40510
 2007-07-26 03:33:13 +00:00
Evan Cheng
4b747bb6a0 EmitAlignment() also emits optional fill value. 
llvm-svn: 40500
 2007-07-25 23:35:07 +00:00
Anton Korobeynikov
e0344393bb Minor cleanup: 
- Split EH and debug infiormation
 - Make DwarfWriter more verbose in some cases

llvm-svn: 40481
 2007-07-25 00:06:28 +00:00
Dan Gohman
1444c5840b Add const to CanBeFoldedBy, CheckAndMask, and CheckOrMask. 
llvm-svn: 40480
 2007-07-24 23:00:27 +00:00
Dan Gohman
54b8032d64 Fix some uses of dyn_cast to be uses of cast. 
llvm-svn: 40443
 2007-07-23 20:24:29 +00:00
Dan Gohman
ac8ccab48f Don't assume that only Uses can be kills. Defs are marked as kills initially 
when there are no uses. This fixes a dangling-pointer bug, where pointers to
deleted instructions were not removed from kills lists. More info here:
http://lists.cs.uiuc.edu/pipermail/llvmdev/2007-July/009749.html

llvm-svn: 40131
 2007-07-20 23:17:34 +00:00
Evan Cheng
cdb4e7949f Added -print-emitted-asm to print out JIT generated asm to cerr. 
llvm-svn: 40123
 2007-07-20 21:56:13 +00:00
Duncan Sands
840594467f As pointed out by g++-4.2, the original code didn't do 
what it thought it was doing.

llvm-svn: 40044
 2007-07-19 07:31:58 +00:00
Evan Cheng
5dd17373c5 Add comment. 
llvm-svn: 40022
 2007-07-18 23:34:48 +00:00
Dan Gohman
4c140b7128 It's not necessary to do rounding for alloca operations when the requested 
alignment is equal to the stack alignment.

llvm-svn: 40004
 2007-07-18 16:29:46 +00:00
Evan Cheng
6ad7064bdf Dead code. 
llvm-svn: 39979
 2007-07-17 20:01:19 +00:00
Dan Gohman
0ba554c0c8 Fix comments about vectors to use the current wording. 
llvm-svn: 39921
 2007-07-16 14:29:03 +00:00
Nick Lewycky
05e4170839 Fix the build. Patch from Holger Schurig. 
llvm-svn: 39856
 2007-07-14 15:11:14 +00:00
Anton Korobeynikov
5635277c36 Long live the exception handling! 
This patch fills the last necessary bits to enable exceptions
handling in LLVM. Currently only on x86-32/linux.

In fact, this patch adds necessary intrinsics (and their lowering) which
represent really weird target-specific gcc builtins used inside unwinder.

After corresponding llvm-gcc patch will land (easy) exceptions should be
more or less workable. However, exceptions handling support should not be 
thought as 'finished': I expect many small and not so small glitches
everywhere.

llvm-svn: 39855
 2007-07-14 14:06:15 +00:00
Dan Gohman
44771cf8e8 Fix the comment for LegalizeOp to more accurately reflect what it does. 
llvm-svn: 39827
 2007-07-13 20:14:11 +00:00
Dan Gohman
1f4580ceb4 Don't call SimplifyVBinOp for non-vector operations, following earlier review 
feedback. This theoretically makes the common (scalar) case more efficient.

llvm-svn: 39823
 2007-07-13 20:03:40 +00:00
Dale Johannesen
1a9d304c35 Modify previous patch per review comments. 
llvm-svn: 39817
 2007-07-13 17:31:29 +00:00
Dale Johannesen
469ed8e17e Skeleton of post-RA scheduler; doesn't do anything yet. 
Change name of -sched option and DEBUG_TYPE to
pre-RA-sched; adjust testcases.

llvm-svn: 39816
 2007-07-13 17:13:54 +00:00
Duncan Sands
b2a18dc10b The type ids making up a filter are unsigned, and 
should be output as unsigned values.  Checked against
gcc.

llvm-svn: 39775
 2007-07-12 13:51:39 +00:00
Evan Cheng
c7216b3a86 Missed a couple of places where new instructions are added due to spill / restore. 
llvm-svn: 39748
 2007-07-11 19:17:18 +00:00
Duncan Sands
bfbe683782 Exception handling has been implemented. 
llvm-svn: 39732
 2007-07-11 16:59:20 +00:00
Duncan Sands
aa83dc9037 If assertions are not enabled, we should return False here. 
llvm-svn: 38535
 2007-07-11 08:47:55 +00:00
Evan Cheng
2791a7ea6d No longer need to track last def / use. 
llvm-svn: 38534
 2007-07-11 08:47:44 +00:00
Evan Cheng
c42a2e03f1 Fix for PR1545: Revamp code that update kill information due to register reuse. 
llvm-svn: 38525
 2007-07-11 05:28:39 +00:00
David Greene
8d77dcca00 Make this work with GLIBCXX_DEBUG. 
llvm-svn: 38516
 2007-07-10 22:00:30 +00:00
Dan Gohman
629311ca52 Change the peep for EXTRACT_VECTOR_ELT of BUILD_PAIR to look for 
the new CONCAT_VECTORS node type instead, as that's what legalize
uses now. And add a peep for EXTRACT_VECTOR_ELT of INSERT_VECTOR_ELT.

llvm-svn: 38503
 2007-07-10 18:20:44 +00:00
Evan Cheng
d80c2821af If the operand is marked M_OPTIONAL_DEF_OPERAND, then it's a def. 
llvm-svn: 38496
 2007-07-10 17:52:20 +00:00
Evan Cheng
87e735c4be Somehow this wasn't committed last time. M_CLOBBERS_PRED is gone. 
llvm-svn: 38495
 2007-07-10 17:50:43 +00:00
Dan Gohman
bd0ff28e1c Fix a bug in the folding of binary operators to undef. 
Thanks to Lauro for spotting this!

llvm-svn: 38491
 2007-07-10 15:19:29 +00:00
Dan Gohman
6b21e11f1c Fix the folding of undef in several binary operators to recognize 
undef in either the left or right operand.

llvm-svn: 38489
 2007-07-10 14:20:37 +00:00
Evan Cheng
cf3b1c89a9 When a node value is only used by a CopyToReg, use the user's dest. This should not be restricted to nodes that produce only a single value. 
llvm-svn: 38485
 2007-07-10 07:08:32 +00:00