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37915 Commits

Author SHA1 Message Date
Dan Gohman
988099700a Delete an obsolete comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101264 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 17:40:25 +00:00
Dan Gohman
c21a2dc8df Delete an unused function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101263 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 17:22:02 +00:00
Dan Gohman
5dc44335b1 Clear the FunctionLoweringInfo object before doing other things that 
don't need it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101262 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 17:13:16 +00:00
Dan Gohman
0e026729ae Move this assert out of SelectionDAGISel into FunctionLoweringInfo, and 
drop the redundant #ifndef NDEBUG.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101261 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 17:11:23 +00:00
Dan Gohman
046fe6b6ba Add a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101260 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 17:09:37 +00:00
Dan Gohman
b13033f61c Move the code for initialing the entry block livein set out of 
SelectionDAGISel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101258 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 17:05:00 +00:00
Dan Gohman
c0fb65da04 Reorgnaize this code to be more tidy and readable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101256 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 17:02:07 +00:00
Dan Gohman
441516fb3d Trim #includes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101255 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 16:54:39 +00:00
Dan Gohman
98708260f5 Move the code for emitting livein copies out of SelectionDAGISel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101254 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 16:51:49 +00:00
Gabor Greif
67894a3d02 performance: cache the dereferenced use_iterator 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101253 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 16:48:56 +00:00
Dan Gohman
de4c0a7da7 Sink landing-pad marking code out of 
SelectionDAGISel::runOnMachineFunction into FunctionLowering.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101252 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 16:32:56 +00:00
Dan Gohman
d0d8275cb2 It's not necessary to recompute EB here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101251 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 16:30:40 +00:00
Gabor Greif
488d4421c6 performance: cache the dereferenced use_iterator 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101250 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 16:13:56 +00:00
Dan Gohman
2c93e39072 Add a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101248 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 16:08:56 +00:00
Nick Lewycky
29efad1d26 Enable RTTI again. While this works fine for LLVM, it creates an ABI 
incompatibility with some clients covered by the buildbots, such as llvm-gcc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101237 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 05:51:59 +00:00
Nick Lewycky
0a850d6af4 Turn off RTTI for VMCore. Yay! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101233 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 05:30:13 +00:00
Nick Lewycky
3c594ff290 I don't know how, but I managed to goof the revert. Remove function that should 
have been removed in r101231.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101232 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 05:03:50 +00:00
Nick Lewycky
3715e45da5 Revert r101213. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101231 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 04:51:58 +00:00
Nick Lewycky
beba1a31a4 Fix 80 column ruler. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101229 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 04:40:35 +00:00
Chris Lattner
d305035155 implement mc asmparser support for '.', which gets the 
current PC.  rdar://7834775

We now produce an identical .o file compared to the cctools
assembler for something like this:

_f0:
L0:
        jmp L1
        .long . - L0
L1:
        jmp A
        .long . - L1

        .zerofill __DATA,_bss,A,0



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101227 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 04:40:28 +00:00
Nick Lewycky
ff1ef6bdf1 Remove tab. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101223 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 04:19:05 +00:00
Nick Lewycky
5894c0b60e While DAE can't modify the function signature of an externally visible function, 
it can check whether the visible direct callers are passing in parameters to
dead arguments and replace those with undef.

This reinstates r94322 with bugs fixed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101213 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 03:38:11 +00:00
Dan Gohman
32acbc1e50 Generalize this code to handle Instructions in addition to ConstantExprs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101210 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 02:33:23 +00:00
Dan Gohman
b4be71e112 Reorder the methods of this class to be a little more organized. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101206 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 02:09:45 +00:00
Johnny Chen
6f72ab345d Fixed another assert exposed by fuzzing. Now, when an encoding error occurs 
involing getBFCInvMask() where lsb <= msb does not hold true, the disassembler
just returns false, instead of assert, to indicate disassembly error.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101205 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 02:05:29 +00:00
Devang Patel
1d526c38e2 Clear MachineInstr->MCSymbol maps at the end of a function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101202 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 01:18:28 +00:00
Johnny Chen
efcdac0c41 Fixed an assert() exposed by fuzzing. Now, instead of assert when an invalid 
instruction encoding is encountered, we just return a NULL ARMBasicMCBuilder
instance and the client just returns false to indicate disassembly error.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101201 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-14 01:17:37 +00:00
Douglas Gregor
533ae9b71d Unbreak CMake build by improving the EnhancedDisassembly makefile a 
bit (we're not trying to build a shared library yet) and generating
the X86GenEDInfo.inc and ARMGenEDInfo.inc files as necessary.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101188 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-13 22:47:43 +00:00
Evan Cheng
6327537a37 Fast path implicit_def check. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101183 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-13 22:13:34 +00:00
Bob Wilson
6a234f07fa Handle a v2f64 formal parameter that is split between registers and memory 
such that the entire second half is in memory.  Radar 7855014.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101181 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-13 22:03:22 +00:00
Sean Callanan
9899f70a74 Fixed a nasty layering violation in the edis source 
code.  It used to #include the enhanced disassembly
information for the targets it supported straight
out of lib/Target/{X86,ARM,...} but now it uses a
new interface provided by MCDisassembler, and (so
far) implemented by X86 and ARM.

Also removed hacky #define-controlled initialization
of targets in edis.  If clients only want edis to
initialize a limited set of targets, they can set
--enable-targets on the configure command line.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101179 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-13 21:21:57 +00:00
Johnny Chen
8a87ffb925 Changed getSOImmValRotate()'s hunt retry logic to ignore the low order 6 bits, 
instead of 7, because we are only looking for even rotate amount.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101172 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-13 20:35:16 +00:00
Devang Patel
50d80e394d Do not include types without any definition in pubtypes list. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101171 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-13 20:35:04 +00:00
Evan Cheng
c15d9135a8 Avoid variable shadowing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101170 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-13 20:25:29 +00:00
Evan Cheng
aeb2f4aa46 Expand postra machine licm's capability a little more. If an instruction's register operands are all loop invariants, then it's safe to hoist it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101167 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-13 20:21:05 +00:00
Jakob Stoklund Olesen
8d17160e2c Teach MachineSinking to handle easy critical edges. 
Sometimes it is desirable to sink instructions along a critical edge:

x = ...
if (a && b) ...
else use(x);

The 'a && b' condition creates a critical edge to the else block, but we still
want to sink the computation of x into the block. The else block is dominated by
the parent block, so we are not pushing instructions into new code paths.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101165 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-13 19:06:14 +00:00
Evan Cheng
fc5a03e469 Re-apply 101075 and fix it properly. Just reuse the debug info of the branch instruction being optimized. There is no need to --I which can deref off start of the BB. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101162 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-13 18:50:27 +00:00
Eric Christopher
97e6992e3e Temporarily revert r101075, it's causing invalid iterator assertions 
in a nightly tester.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101158 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-13 18:37:58 +00:00
Evan Cheng
5dc57ce533 Teach postra machine licm to hoist more obvious invariants, e.g. instructions with no source operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101154 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-13 18:16:00 +00:00
Dan Gohman
4183e31978 Add a few comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101148 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-13 17:07:06 +00:00
Dan Gohman
81bf03eb5c Eliminate MachineBasicBlock::const_livein_iterator and make 
MachineBasicBlock::livein_iterator a const_iterator, because
clients shouldn't ever be using the iterator interface to
mutate the livein set.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101147 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-13 16:57:55 +00:00
Dan Gohman
9e9aa44d1a Rename MachineFrameInfo variables to MFI, for consistency with 
the rest of CodeGen.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101146 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-13 16:56:45 +00:00
Dan Gohman
13e73f483e Move MachineRegisterInfo's isLiveIn and isLiveOut out of line. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101145 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-13 16:55:37 +00:00
Dan Gohman
c5e43c958e Use MachineBasicBlock::isLiveIn. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101144 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-13 16:53:51 +00:00
Dan Gohman
5c982949bf Delete an unused member variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101143 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-13 16:51:39 +00:00
Dan Gohman
28287794d4 Teach ScalarEvolution to simplify smax and umax when it can prove 
that one operand is always greater than another.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101142 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-13 16:51:03 +00:00
Dan Gohman
3ab131243e Minor code micro-optimizations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101141 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-13 16:49:23 +00:00
Eric Christopher
2a7cb9d9ce Actually... return after the check for invalid input. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101139 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-13 16:41:29 +00:00
Benjamin Kramer
b0322e6ddf BumpPtrAllocator::Reset() doesn't need to allocate anything. (Thanks, Jakob) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101138 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-13 16:38:06 +00:00
Benjamin Kramer
5e6a705985 Let BumpPtrAllocator lazily allocate the first slab. 
We have some code in llvm and clang where a BumpPtrAllocator is declared in a
class but never used in the common case. Stop wasting memory there.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101130 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-13 14:41:51 +00:00