Chris Lattner
28ab65caf2
Adjust to recent changes
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llvm-svn: 11514
2004-02-17 03:03:47 +00:00
Alkis Evlogimenos
501e24b28a
Add peephole optimizations for ADD [MEM], IMM8 instructions.
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llvm-svn: 11511
2004-02-16 23:50:18 +00:00
Alkis Evlogimenos
657876c656
Add two more variants of add. Update comments.
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llvm-svn: 11510
2004-02-16 23:48:42 +00:00
Chris Lattner
2c0736be99
Only spit out warning for functions that take pointers, not for sin and the like
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Add more special case handling for stdio functions. I feel dirty, how about you?
llvm-svn: 11506
2004-02-16 22:57:19 +00:00
Chris Lattner
11c0e5b684
Move the folding of gep null, 0, 0, 0 to a place where it can be shared and
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enjoyed by all, fixing a fixme. Add an assert
llvm-svn: 11505
2004-02-16 20:46:13 +00:00
Chris Lattner
513e4c7bd9
memset and bcopy and now unified by the llvm.memset intrinsic
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llvm-svn: 11503
2004-02-16 18:37:40 +00:00
Chris Lattner
d8cc48da34
Add some ADD instructions that take memory operands for Alkis
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llvm-svn: 11502
2004-02-16 18:19:31 +00:00
Alkis Evlogimenos
790b000aa7
Add LeakDetection to MachineInstr.
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Move out of line member functions of MachineBasicBlock to
MachineBasicBlock.cpp.
llvm-svn: 11497
2004-02-16 07:17:43 +00:00
Chris Lattner
f51bbb7eec
Implement test/Regression/Transforms/SimplifyCFG/UncondBranchToReturn.ll,
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see the testcase for the reasoning.
llvm-svn: 11496
2004-02-16 06:35:48 +00:00
Chris Lattner
9affa63dc6
Fold PHI nodes of constants which are only used by a single cast. This implements
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phi.ll:test4
llvm-svn: 11494
2004-02-16 05:07:08 +00:00
Chris Lattner
011b98cec4
Teach LLVM to unravel the "swap idiom". This implements:
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Regression/Transforms/InstCombine/xor.ll:test20
llvm-svn: 11492
2004-02-16 03:54:20 +00:00
Chris Lattner
71154f0931
Implement Transforms/InstCombine/xor.ll:test19
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llvm-svn: 11490
2004-02-16 01:20:27 +00:00
Chris Lattner
b4b7a985fc
Fix a bug in the recent rewrite of the leakdetector that caused all of the
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nightly tests to be really messed up. The problem was that the new leakdetector
was depending on undefined behavior: the order of destruction of static objects.
llvm-svn: 11488
2004-02-15 23:33:48 +00:00
Chris Lattner
336c99d138
Now that the lowerinvoke pass inserts calls to llvm.setjmp/llvm.longjmp, some
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hacks can be banished. Also, this gives us the opportunity to emit special code
for the setjmp/longjmps which alows the elimination of one GCC warning for every
setjmp/longjmp site (which is often THOUSANDS in C++ programs). Yaay!
llvm-svn: 11484
2004-02-15 22:51:47 +00:00
Chris Lattner
b5914223b8
By default, llvm.setjmp/llvm.longjmp intrinsics get lowered to their libc counterparts
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llvm-svn: 11483
2004-02-15 22:24:51 +00:00
Chris Lattner
c224c03911
Instead of producing calls to setjmp/longjmp, produce uses of the
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llvm.setjmp/llvm.longjmp intrinsics.
llvm-svn: 11482
2004-02-15 22:24:27 +00:00
Chris Lattner
ded1ad2846
Refactor code. Now the intrinsic lowering pass tries to recycle preexisting
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prototypes, even if they don't precisely match what it would prefer to use.
This fixes: CBackend/2004-02-15-PreexistingExternals.llx compiling it into:
ltmp_0_30 = memcpy(l14_C, 4u, 17);
ltmp_1_30 = memcpy(((int *)l27_A), ((unsigned )(long)l27_B), ((int )123u));
instead of:
ltmp_0_30 = memcpy(l14_C, 4u, 17);
ltmp_1_27 = l43_memcpy(l27_A, l27_B, 123u);
Which does the wrong thing as you could imagine.
llvm-svn: 11481
2004-02-15 22:16:39 +00:00
Alkis Evlogimenos
4a2e2b54f6
This pass should not require phi elimination or live variable
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analysis. It should only preserve them and update LiveVariables if it
already ran.
llvm-svn: 11479
2004-02-15 21:50:32 +00:00
Chris Lattner
787d6b86e3
Finegrainify namespacification
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Remove one of the operands of a two operand instruction
llvm-svn: 11478
2004-02-15 21:38:28 +00:00
Alkis Evlogimenos
84318d7bb6
Make dense maps keyed on physical registers smallerusing
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MRegisterInfo::getNumRegs() instead of
MRegisterInfo::FirstVirtualRegister.
Also use MRegisterInfo::is{Physical,Virtual}Register where
appropriate.
llvm-svn: 11477
2004-02-15 21:37:17 +00:00
Alkis Evlogimenos
1026a01d5a
Eliminate the use of spill (reserved) registers.
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llvm-svn: 11476
2004-02-15 10:24:21 +00:00
Chris Lattner
28131460da
Adjustments to support the new ConstantAggregateZero class
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llvm-svn: 11474
2004-02-15 05:55:15 +00:00
Chris Lattner
99ed412516
Add support for the new ConstantAggregateZero class
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llvm-svn: 11473
2004-02-15 05:54:27 +00:00
Chris Lattner
2679a58a61
Make the JIT zero out globals with memset instead of an element at a time. This
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should speed it up a bit on a lot of programs
llvm-svn: 11472
2004-02-15 05:54:06 +00:00
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