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Author SHA1 Message Date
Alkis Evlogimenos
84318d7bb6 Make dense maps keyed on physical registers smallerusing 
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. 
llvm-svn: 11476
 2004-02-15 10:24:21 +00:00
Chris Lattner
82516726ac QOI bug fixed 
llvm-svn: 11475
 2004-02-15 06:00:04 +00:00
Chris Lattner
28131460da Adjustments to support the new ConstantAggregateZero class 
llvm-svn: 11474
 2004-02-15 05:55:15 +00:00
Chris Lattner
99ed412516 Add support for the new ConstantAggregateZero class 
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 
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. 
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 
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
bbe538e930 finegrainify namespacification 
llvm-svn: 11469
 2004-02-15 05:52:36 +00:00
Chris Lattner
177881e6ad Bug fixed 
llvm-svn: 11468
 2004-02-15 05:47:37 +00:00
Chris Lattner
0f819b9523 ConstantArray::get and ConstantStruct::get now just return pointers to 
'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 
llvm-svn: 11466
 2004-02-15 04:07:32 +00:00
Chris Lattner
3fd2b573f1 Remove dependence on the return type of ConstantArray::get 
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 
from 16.57 -> 13.46s on 129.compress.

llvm-svn: 11462
 2004-02-15 02:46:46 +00:00
Chris Lattner
3c6e99398f Testcase for PR205: [llvmgcc] C front-end does not emit 'zeroinitializer' when possible 
llvm-svn: 11461
 2004-02-15 02:19:08 +00:00
Chris Lattner
7a84c6d9f9 Test for actual support, not just for lack of crashage 
llvm-svn: 11460
 2004-02-15 01:21:39 +00:00
Chris Lattner
af97b8450d Implement llvm.(frame|return)address(0) correctly. They are used by the LLVM JIT, among other 
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 
dereferencing it causes an assertion error.

llvm-svn: 11458
 2004-02-15 00:46:41 +00:00
Chris Lattner
0e7fb375bf New code quality fix 
llvm-svn: 11457
 2004-02-15 00:23:15 +00:00
Chris Lattner
402f5ee496 New testcase for PR237: [x86] wierd stack/frame pointer manipulation 
llvm-svn: 11456
 2004-02-15 00:21:04 +00:00
Chris Lattner
679c106ce3 Fix the 'have a framepointer' case, so that the frame pointer always points 
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 
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 
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 
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 
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 
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! 
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, 
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
b8bfcaff7e The prologue/epilogue related method calls have no reason to return a value, 
make them return void.

llvm-svn: 11447
 2004-02-14 19:49:05 +00:00
Chris Lattner
49c1f92c5c fix typeo 
llvm-svn: 11446
 2004-02-14 19:27:26 +00:00
Chris Lattner
1248c8a7f7 finegrainify namespacification, fix 80col prob 
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 
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... 
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 
llvm-svn: 11442
 2004-02-14 04:46:05 +00:00
Chris Lattner
6890963e48 add 'rep stos[bwd]' instructions 
llvm-svn: 11441
 2004-02-14 04:45:37 +00:00
Chris Lattner
5e8b7140fd new testcase for llvm.memset generation 
llvm-svn: 11440
 2004-02-14 04:26:15 +00:00
Chris Lattner
24cd846cc2 These should be mentioned 
llvm-svn: 11439
 2004-02-14 04:12:41 +00:00
Chris Lattner
b4df99f307 Document new intrinsics 
llvm-svn: 11438
 2004-02-14 04:08:35 +00:00
Chris Lattner
fcf79d7e46 builtin_return/frame_address now work 
llvm-svn: 11437
 2004-02-14 04:08:29 +00:00
Chris Lattner
0f95c3097f Testcase for builtin frame/return address 
llvm-svn: 11436
 2004-02-14 04:06:48 +00:00
Chris Lattner
92d5901cb8 Test that the CFE compiles memset and bzero to llvm.memset 
llvm-svn: 11435
 2004-02-14 03:46:37 +00:00
Chris Lattner
89f1862671 Add a testcase for the frameaddress and returnaddress intrinsics. 
llvm-svn: 11434
 2004-02-14 02:55:47 +00:00
Chris Lattner
b8ecb673d1 Add support for the returnaddress and frameaddress intrinsics 
llvm-svn: 11433
 2004-02-14 02:55:36 +00:00
Chris Lattner
7ab8db4907 Test that the code generator supports these intrinsics 
llvm-svn: 11432
 2004-02-14 02:51:40 +00:00
Chris Lattner
cdfcb976c7 Add llvm.memset/frameaddress/returnaddress intrinsics. 
llvm-svn: 11431
 2004-02-14 02:47:17 +00:00
Alkis Evlogimenos
a31a767307 Use newly added next() and prior() utility functions. 
llvm-svn: 11430
 2004-02-14 01:18:34 +00:00
Alkis Evlogimenos
fa9e207a22 Add next() and prior() iterator utility functions. Unlike std::advance 
they do not modify the passed iterator but return a copy.

next(myIt) returns copy of myIt incremented once
next(myIt, n) returns copy of myIt incremented n times
prior(myIt) returns copy of myIt decremented once
prior(myIt, n) returns copy of myIt decremented n times

While at it remove obsolete implementation of mapped_iterator.

llvm-svn: 11429
 2004-02-14 01:17:28 +00:00
Chris Lattner
15229988fb Updates for the C backend's movement 
llvm-svn: 11428
 2004-02-14 01:07:17 +00:00
Alkis Evlogimenos
3eeb600093 Use std::numeric_limits<float>::infinity() instead of 
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 
code that worked around problems in the mangler

llvm-svn: 11426
 2004-02-14 00:31:10 +00:00