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3947 Commits

Author SHA1 Message Date
Dan Gohman
286d56935c Print a space between the comment character and the basic block name, 
for prettiness.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40593 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-30 15:06:25 +00:00
Duncan Sands
36397f5034 Support for trampolines, except for X86 codegen which is 
still under discussion.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40549 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-27 12:58:54 +00:00
Christopher Lamb
ada779fb11 Move subreg lowering pass to be right after regalloc, per feedback. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40548 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-27 07:36:14 +00:00
Dan Gohman
559742c0ea 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40534 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-26 16:14:06 +00:00
Christopher Lamb
bab2474b64 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40521 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-26 08:18:32 +00:00
Christopher Lamb
e24f8f1ec9 Teach DAG scheduling how to properly emit subreg insert/extract machine instructions. PR1350 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40520 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-26 08:12:07 +00:00
Christopher Lamb
557c3631d3 Add selection DAG nodes for subreg insert/extract. PR1350 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40516 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-26 07:34:40 +00:00
Christopher Lamb
6f95014158 Remove subreg index from MachineInstr's and also keep vregs as unsigned when adding operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40514 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-26 07:00:46 +00:00
Christopher Lamb
844228a631 Fix infinite recursion for when extract_vector_elt is legal. Unfortunately no public targets use this code-path, so no test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40510 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-26 03:33:13 +00:00
Evan Cheng
73a259a9d1 EmitAlignment() also emits optional fill value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40500 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-25 23:35:07 +00:00
Anton Korobeynikov
59db3ec935 Minor cleanup: 
- Split EH and debug infiormation
 - Make DwarfWriter more verbose in some cases


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40481 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-25 00:06:28 +00:00
Dan Gohman
dc9b3d0bb5 Add const to CanBeFoldedBy, CheckAndMask, and CheckOrMask. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40480 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-24 23:00:27 +00:00
Dan Gohman
275769a77a Fix some uses of dyn_cast to be uses of cast. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40443 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-23 20:24:29 +00:00
Dan Gohman
c674a924d4 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40131 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-20 23:17:34 +00:00
Evan Cheng
8bd6035750 Added -print-emitted-asm to print out JIT generated asm to cerr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40123 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-20 21:56:13 +00:00
Duncan Sands
70d0bd1624 As pointed out by g++-4.2, the original code didn't do 
what it thought it was doing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40044 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-19 07:31:58 +00:00
Evan Cheng
273288c888 Add comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40022 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-18 23:34:48 +00:00
Dan Gohman
48613b930a It's not necessary to do rounding for alloca operations when the requested 
alignment is equal to the stack alignment.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40004 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-18 16:29:46 +00:00
Evan Cheng
f99002c143 Dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39979 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-17 20:01:19 +00:00
Dan Gohman
07a96765da Fix comments about vectors to use the current wording. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39921 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 14:29:03 +00:00
Nick Lewycky
6d4b711e7f Fix the build. Patch from Holger Schurig. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39856 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-14 15:11:14 +00:00
Anton Korobeynikov
2365f51ed0 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39855 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-14 14:06:15 +00:00
Dan Gohman
a346615d11 Fix the comment for LegalizeOp to more accurately reflect what it does. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39827 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 20:14:11 +00:00
Dan Gohman
05d92fe7c4 Don't call SimplifyVBinOp for non-vector operations, following earlier review 
feedback. This theoretically makes the common (scalar) case more efficient.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39823 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 20:03:40 +00:00
Dale Johannesen
72f1596403 Modify previous patch per review comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39817 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 17:31:29 +00:00
Dale Johannesen
e7e7d0d7e3 Skeleton of post-RA scheduler; doesn't do anything yet. 
Change name of -sched option and DEBUG_TYPE to
pre-RA-sched; adjust testcases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39816 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 17:13:54 +00:00
Duncan Sands
bb821dd79b The type ids making up a filter are unsigned, and 
should be output as unsigned values.  Checked against
gcc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39775 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-12 13:51:39 +00:00
Evan Cheng
28bb462d4c Missed a couple of places where new instructions are added due to spill / restore. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39748 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 19:17:18 +00:00
Duncan Sands
c3751600b7 Exception handling has been implemented. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39732 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 16:59:20 +00:00
Duncan Sands
97b4ac8c84 If assertions are not enabled, we should return False here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38535 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 08:47:55 +00:00
Evan Cheng
b9591c667d No longer need to track last def / use. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38534 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 08:47:44 +00:00
Evan Cheng
0c40d72b01 Fix for PR1545: Revamp code that update kill information due to register reuse. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38525 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-11 05:28:39 +00:00
David Greene
67fcdf7f65 Make this work with GLIBCXX_DEBUG. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38516 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 22:00:30 +00:00
Dan Gohman
743d3a7548 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38503 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 18:20:44 +00:00
Evan Cheng
5e2456c959 If the operand is marked M_OPTIONAL_DEF_OPERAND, then it's a def. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38496 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 17:52:20 +00:00
Evan Cheng
11ce02dbdd Somehow this wasn't committed last time. M_CLOBBERS_PRED is gone. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38495 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 17:50:43 +00:00
Dan Gohman
70fb1aefd5 Fix a bug in the folding of binary operators to undef. 
Thanks to Lauro for spotting this!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38491 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 15:19:29 +00:00
Dan Gohman
d595b5f1f0 Fix the folding of undef in several binary operators to recognize 
undef in either the left or right operand.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38489 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 14:20:37 +00:00
Evan Cheng
af825c840e 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38485 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 07:08:32 +00:00
Evan Cheng
c63d391c9a Move DenseMapKeyInfo<SDOperand> from LegalizeDAG.cpp to SelectionDAGNodes.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38484 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-10 06:59:55 +00:00
Dan Gohman
d6fd1bc122 Preserve volatililty and alignment information when lowering or 
simplifying loads and stores.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38473 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-09 22:18:38 +00:00
Dan Gohman
532dc2e1f2 Change getCopyToParts and getCopyFromParts to always use target-endian 
register ordering, for both physical and virtual registers. Update the PPC
target lowering for calls to expect registers for the call result to
already be in target order.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38471 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-09 20:59:04 +00:00
Dan Gohman
93f81e2822 Initialize the IndexedModeActions array with memset before 
updating it with calls to setIndexedLoadAction/setIndexedStoreAction,
which only update a few bits at a time. This avoids ostensible
undefined behavior of operationg on values which may be
trap-representations, and as a practical matter fixes errors from
valgrind, which doesn't track uninitialized memory with bit
granularity.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38468 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-09 20:49:44 +00:00
Chris Lattner
e094f54f4c Fix this warning: 
DAGCombiner.cpp: In member function 'llvm::SDOperand<unnamed>::DAGCombiner::visitOR(llvm::SDNode*)':
DAGCombiner.cpp:1608: warning: passing negative value '-0x00000000000000001' for argument 1 to 'llvm::SDOperand llvm::SelectionDAG::getConstant(uint64_t, llvm::MVT::ValueType, bool)'

oiy.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38458 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-09 16:16:34 +00:00
Gabor Greif
e510b3af3a fix typos 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38453 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-09 12:00:59 +00:00
Evan Cheng
d2c5eb864f Teach if-conversion about instructions that were already predicated, e.g. conditional move. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37964 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-06 23:24:39 +00:00
Duncan Sands
f664e41b20 The exception handling intrinsics return values, 
so must be lowered to a value, not nothing at all.
Subtle point: I made eh_selector return 0 and
eh_typeid_for return 1.  This means that only
cleanups (destructors) will be run as the exception
unwinds [if eh_typeid_for returned 0 then it would
be as if the first catch always matched, and the
corresponding handler would be run], which is
probably want you want in the CBE.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37947 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-06 14:46:23 +00:00
Duncan Sands
fccf0a2b25 Indexes into the list of filter ids cannot be output 
directly: they need to be turned into byte offsets
(often the same, but may not be if there are many
type infos).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37942 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-06 12:46:24 +00:00
Rafael Espindola
1aa7efbd2c Add the byval attribute 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37940 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-06 10:57:03 +00:00
Duncan Sands
902919541f Remove propagateEHRegister in favour of a more limited 
fix, that is adequate while PR1508 remains unresolved.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37938 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-06 09:18:59 +00:00