Chris Lattner
cd6a595db5
No need to scan zero initializers. This should make DSA a bit faster.
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llvm-svn: 11471
2004-02-15 05:53:42 +00:00
Chris Lattner
363cd9e4b8
Add a new ConstantAggregateZero class, to fix PR239. This makes zero
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initializers for constant structs and arrays take constant space, instead of
space proportinal to the number of elements. This reduces the memory usage of
the LLVM compiler by hundreds of megabytes when compiling some nasty SPEC95
benchmarks.
llvm-svn: 11470
2004-02-15 05:53:04 +00:00
Chris Lattner
0f819b9523
ConstantArray::get and ConstantStruct::get now just return pointers to
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'Constant', instead of specific subclass pointers. In the future, these will
return an instance of ConstantAggregateZero if all of the inputs are zeros.
llvm-svn: 11467
2004-02-15 04:14:47 +00:00
Chris Lattner
52cc69f39e
Remove dependence on return type of ConstantStruct::get
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llvm-svn: 11466
2004-02-15 04:07:32 +00:00
Chris Lattner
3fd2b573f1
Remove dependence on the return type of ConstantArray::get
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llvm-svn: 11463
2004-02-15 04:05:58 +00:00
Chris Lattner
c8d0942108
Keep a cache of non-abstract null arrays and structs. This speeds up llvm-dis
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from 16.57 -> 13.46s on 129.compress.
llvm-svn: 11462
2004-02-15 02:46:46 +00:00
Chris Lattner
af97b8450d
Implement llvm.(frame|return)address(0) correctly. They are used by the LLVM JIT, among other
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applications
llvm-svn: 11459
2004-02-15 01:04:03 +00:00
Alkis Evlogimenos
fc768e6db0
Fix problem in DEBUG code. I could be pointing past the end and
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dereferencing it causes an assertion error.
llvm-svn: 11458
2004-02-15 00:46:41 +00:00
Chris Lattner
679c106ce3
Fix the 'have a framepointer' case, so that the frame pointer always points
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to the old saved EBP.
llvm-svn: 11455
2004-02-15 00:15:37 +00:00
Chris Lattner
18c5e0065f
Allow for fixed objects to reside in the local area, and if they don't to not
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clobber them by allocating other objects in the same space!
llvm-svn: 11454
2004-02-15 00:14:20 +00:00
Alkis Evlogimenos
e8f9647831
Add back machine code deleter pass until we get a MachineCode pass
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that will be responsible for the creation of MachineFunctions and will
be required by all MachineFunctionPass passes.
llvm-svn: 11453
2004-02-15 00:03:15 +00:00
Alkis Evlogimenos
0a88b596b1
Modularize implementation of LeakDetector into a typed template
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implementation class. This makes the code simpler and allows for more
types to be added easily. It also implements caching for generic
objects (it was only available for llvm objects).
llvm-svn: 11452
2004-02-14 23:33:39 +00:00
Chris Lattner
cc5bf36481
Add support for the 'pop' instruction
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llvm-svn: 11451
2004-02-14 21:06:02 +00:00
Chris Lattner
3246911460
There is no reason to align the stack pointer if there are no callees of this
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function!
llvm-svn: 11450
2004-02-14 20:11:07 +00:00
Chris Lattner
1130fb28d9
There is no reason to align the stack pointer if there are no callees of this function!
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llvm-svn: 11449
2004-02-14 20:10:59 +00:00
Chris Lattner
f28479d600
The prologue/epilogue related method calls have no reason to return a value,
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make them return void.
This allows us to avoid some costly MBB.size() calls
llvm-svn: 11448
2004-02-14 19:49:54 +00:00
Chris Lattner
1248c8a7f7
finegrainify namespacification, fix 80col prob
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llvm-svn: 11445
2004-02-14 06:00:36 +00:00
Chris Lattner
a25668bd6d
A target that doesn't support these intrinsics will still meet spec (the
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intrinsic will always produce zero), but it will behave unexpectedly, so
warn like GCC does.
llvm-svn: 11444
2004-02-14 04:52:06 +00:00
Chris Lattner
c87772961e
Urg, right. These need an input value...
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llvm-svn: 11443
2004-02-14 04:47:23 +00:00
Chris Lattner
69b716e81c
Codegen llvm.memset into rep stos[bwd]. Simplify code for llvm.memcpy
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llvm-svn: 11442
2004-02-14 04:46:05 +00:00
Chris Lattner
6890963e48
add 'rep stos[bwd]' instructions
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llvm-svn: 11441
2004-02-14 04:45:37 +00:00
Chris Lattner
b8ecb673d1
Add support for the returnaddress and frameaddress intrinsics
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llvm-svn: 11433
2004-02-14 02:55:36 +00:00
Chris Lattner
cdfcb976c7
Add llvm.memset/frameaddress/returnaddress intrinsics.
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llvm-svn: 11431
2004-02-14 02:47:17 +00:00
Alkis Evlogimenos
a31a767307
Use newly added next() and prior() utility functions.
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llvm-svn: 11430
2004-02-14 01:18:34 +00:00
Alkis Evlogimenos
3eeb600093
Use std::numeric_limits<float>::infinity() instead of
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std::numeric_limits<float>::max() for weighting preallocated
intervals.
llvm-svn: 11427
2004-02-14 00:44:07 +00:00
Chris Lattner
83c5c942ca
Use intrinsic lowering like the rest of the backends. Get rid of crufty hacky
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code that worked around problems in the mangler
llvm-svn: 11426
2004-02-14 00:31:10 +00:00
Chris Lattner
6c31b081e4
Fix the logic in the name mangler. If there are two symbols named 'X', and one
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is external, make sure to mangle the *internal* one, not external one
llvm-svn: 11424
2004-02-14 00:30:23 +00:00
Chris Lattner
bc565b2a6c
There is no need to emit a shift if the size is constant, which is common
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llvm-svn: 11420
2004-02-13 23:36:47 +00:00
Chris Lattner
3681a0bd3f
Moved directory, update makefile
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llvm-svn: 11417
2004-02-13 23:31:12 +00:00
Chris Lattner
85667eca81
CBackend is no longer here
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llvm-svn: 11416
2004-02-13 23:29:37 +00:00
Chris Lattner
9301df3932
CBackend now lives here
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llvm-svn: 11415
2004-02-13 23:29:20 +00:00
Chris Lattner
d076de4bf3
Convert the C backend into a target, for use with LLC. This allows us to use
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the lowerallocations pass to eliminate malloc/free warnings and hackish code
llvm-svn: 11409
2004-02-13 23:18:48 +00:00
Chris Lattner
81155b0069
Make the cwriter use the lowerinvoke pass so that it can either use "disabled exceptions" or
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"expensive exceptions" controlled by an option. Also refactor and eliminate a bunch of cruft.
This is a temporary solution and causes millions of warnings to pour out of programs that use
exceptions, but it should fix the problem with sparc and the 'write' declaration (PR190).
Subsequent changes will make this stink much less
llvm-svn: 11405
2004-02-13 23:00:29 +00:00
Chris Lattner
33ed4f9de9
Add support for a bunch more functions
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llvm-svn: 11395
2004-02-13 21:21:48 +00:00
Alkis Evlogimenos
6d6ab846af
Remove getAllocatedRegNum(). Use getReg() instead.
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llvm-svn: 11393
2004-02-13 21:01:20 +00:00
Chris Lattner
fbacee0077
Add support for fopen/fclose. Specifically with fopen, we were marking all of the
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operands as incomplete, though fopen is known to only read them. This just adds
fclose for symmetry, though it doesn't gain anything. This makes the dsgraphs for
181.mcf much more precise.
llvm-svn: 11390
2004-02-13 20:05:32 +00:00
Alkis Evlogimenos
c1ef192d44
Use getNumVirtualRegs().
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Whitespace cleanups.
llvm-svn: 11389
2004-02-13 18:20:47 +00:00
Chris Lattner
2265790f9f
Fix compilation of 126.gcc: intrinsic functions cannot throw, so they are not
...
allowed in invoke instructions. Thus, if we are inlining a call to an intrinsic
function into an invoke site, we don't need to turn the call into an invoke!
llvm-svn: 11384
2004-02-13 16:47:35 +00:00
Chris Lattner
b0fadd694d
Intrinsic functions cannot throw
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llvm-svn: 11383
2004-02-13 16:46:46 +00:00
Chris Lattner
f1de565975
Expose a pass ID that can be 'required'
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llvm-svn: 11376
2004-02-13 16:16:16 +00:00
Chris Lattner
da61b0ab20
Squish warning
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llvm-svn: 11375
2004-02-13 16:14:50 +00:00
Chris Lattner
dd8e3f4208
Restructure code to handle memcpy/memmove
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llvm-svn: 11374
2004-02-13 16:09:54 +00:00
Brian Gaeke
40b9cf9615
Fix off-by-one in Interpreter::getFirstVarArg(), which was punishing
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any attempts by LLI to use varargs (possibly left over from the introduction
of IntrinsicLowering??)
llvm-svn: 11370
2004-02-13 06:18:39 +00:00
Chris Lattner
c16e56ea41
Fine grainify namespacification, prune #includes
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llvm-svn: 11369
2004-02-13 06:18:21 +00:00
Brian Gaeke
212ffba663
The Interpreter was failing the AtExit UnitTest. This fixes it.
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llvm-svn: 11367
2004-02-13 05:48:00 +00:00
Brian Gaeke
4f4348e113
Refactor MachineFunction::print() into MachineBasicBlock::print().
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Add MachineBasicBlock::dump().
llvm-svn: 11364
2004-02-13 04:39:55 +00:00
Brian Gaeke
44cc73b6f2
Add head-of-file comments and Doxygen comments. Tighten up a lot of whitespace.
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Rename SetMachineOperandConst's formal parameters to match other methods here.
Mark some methods as being used only by the SPARC back-end.
Fix a missing-paren bug in OutputValue().
llvm-svn: 11363
2004-02-13 04:39:32 +00:00
Chris Lattner
705753bd4f
Add support for memcpy and memmove intrinsics. Why isn't the cwriter using
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the intrinsiclowering code?? :(
llvm-svn: 11362
2004-02-12 23:13:33 +00:00
Alkis Evlogimenos
3ecdcd18c5
Add parent pointer to MachineInstr that points to owning
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MachineBasicBlock. Also change opcode to a short and numImplicitRefs
to an unsigned char so that overall MachineInstr's size stays the
same.
llvm-svn: 11357
2004-02-12 18:49:07 +00:00
Chris Lattner
c908f6b738
Add support for the llvm.memmove intrinsic
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Patch graciously contributed by Reid Spencer!
llvm-svn: 11355
2004-02-12 18:11:20 +00:00