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Author SHA1 Message Date
Chris Lattner
bb0cfb0429 Once we have a way to fold spill code reloads into instructions, we have a way to use it. :) 
llvm-svn: 11517
 2004-02-17 04:08:37 +00:00
Alkis Evlogimenos
c6ea9a6b65 Fix spilled interval update. It was too conservative. 
llvm-svn: 11516
 2004-02-17 04:04:20 +00:00
Chris Lattner
7b3342d814 Refactor code a bit. No functionality changes, though the comment hints at things to come. 
llvm-svn: 11515
 2004-02-17 03:57:19 +00:00
Chris Lattner
28ab65caf2 Adjust to recent changes 
llvm-svn: 11514
 2004-02-17 03:03:47 +00:00
Chris Lattner
0b89611d3f Add two missing pieces from last checkin 
llvm-svn: 11513
 2004-02-17 03:03:36 +00:00
Chris Lattner
e26c3df17f Rearrange code to eliminate warnings 
llvm-svn: 11512
 2004-02-17 02:58:36 +00:00
Alkis Evlogimenos
501e24b28a Add peephole optimizations for ADD [MEM], IMM8 instructions. 
llvm-svn: 11511
 2004-02-16 23:50:18 +00:00
Alkis Evlogimenos
657876c656 Add two more variants of add. Update comments. 
llvm-svn: 11510
 2004-02-16 23:48:42 +00:00
John Criswell
7e8d945fe4 Preemptive additions for the MallocBench tests. 
llvm-svn: 11507
 2004-02-16 23:32:26 +00:00
Chris Lattner
2c0736be99 Only spit out warning for functions that take pointers, not for sin and the like 
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 
enjoyed by all, fixing a fixme.  Add an assert

llvm-svn: 11505
 2004-02-16 20:46:13 +00:00
Misha Brukman
c34a63d244 PreSelection isn't optional and so there's no way to turn it off. 
llvm-svn: 11504
 2004-02-16 19:45:26 +00:00
Chris Lattner
513e4c7bd9 memset and bcopy and now unified by the llvm.memset intrinsic 
llvm-svn: 11503
 2004-02-16 18:37:40 +00:00
Chris Lattner
d8cc48da34 Add some ADD instructions that take memory operands for Alkis 
llvm-svn: 11502
 2004-02-16 18:19:31 +00:00
John Criswell
8bdfa4356d Adjusted the default pathname to the SPEC95 benchmarks. The new directory 
has source code corrections and some input files pre-filtered for use
with the LLVM test suite.

llvm-svn: 11498
 2004-02-16 14:55:18 +00:00
Alkis Evlogimenos
790b000aa7 Add LeakDetection to MachineInstr. 
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, 
see the testcase for the reasoning.

llvm-svn: 11496
 2004-02-16 06:35:48 +00:00
Chris Lattner
034c38dfd7 New testcase, details in the comments 
llvm-svn: 11495
 2004-02-16 06:35:19 +00:00
Chris Lattner
9affa63dc6 Fold PHI nodes of constants which are only used by a single cast. This implements 
phi.ll:test4

llvm-svn: 11494
 2004-02-16 05:07:08 +00:00
Chris Lattner
c9df883696 A new testcase for a situation that occurs in 181.mcf 
llvm-svn: 11493
 2004-02-16 05:06:36 +00:00
Chris Lattner
011b98cec4 Teach LLVM to unravel the "swap idiom". This implements: 
Regression/Transforms/InstCombine/xor.ll:test20

llvm-svn: 11492
 2004-02-16 03:54:20 +00:00
Chris Lattner
64b01e562c Add a test for the "swap idiom", which LLVM should be able to unravel. 
llvm-svn: 11491
 2004-02-16 03:53:44 +00:00
Chris Lattner
71154f0931 Implement Transforms/InstCombine/xor.ll:test19 
llvm-svn: 11490
 2004-02-16 01:20:27 +00:00
Chris Lattner
3bef114bbe Test for xor chains 
llvm-svn: 11489
 2004-02-16 01:19:52 +00:00
Chris Lattner
b4b7a985fc Fix a bug in the recent rewrite of the leakdetector that caused all of the 
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
404614b92e Document bug 240 
llvm-svn: 11487
 2004-02-15 23:09:07 +00:00
Chris Lattner
6b3162eb16 Moving CBE tests to test/Regression/CodeGen/CBackend 
llvm-svn: 11486
 2004-02-15 22:56:30 +00:00
Chris Lattner
81eae02a9e When the user runs 'llc foo.bc -march=c', write the output to "foo.cbe.c", not 
to "foo.s".

llvm-svn: 11485
 2004-02-15 22:54:19 +00:00
Chris Lattner
336c99d138 Now that the lowerinvoke pass inserts calls to llvm.setjmp/llvm.longjmp, some 
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 
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 
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 
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
Chris Lattner
5b2d91dda7 New testcase 
llvm-svn: 11480
 2004-02-15 22:14:46 +00:00
Alkis Evlogimenos
4a2e2b54f6 This pass should not require phi elimination or live variable 
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 
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 
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