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Author SHA1 Message Date
Devang Patel
937b07fb5e Update dominator info for the middle blocks created while spliting 
exit edge to preserve LCSSA.

Fix dominance frontier update during loop unswitch. This fixes PR 1589, again

llvm-svn: 40737
 2007-08-02 15:25:57 +00:00
Dan Gohman
a599a813d5 Mark the SSE and MMX load instructions that 
X86InstrInfo::isReallyTriviallyReMaterializable knows how to handle
with the isReMaterializable flag so that it is given a chance to handle
them. Without hoisting constant-pool loads from loops this isn't very
visible, though it does keep CodeGen/X86/constant-pool-remat-0.ll from
making a copy of the constant pool on the stack.

llvm-svn: 40736
 2007-08-02 14:27:55 +00:00
Chris Lattner
0111f62050 Enhance instcombine to be more aggressive about folding casts of 
operations of casts.  This implements InstCombine/zext-fold.ll

llvm-svn: 40726
 2007-08-02 06:11:14 +00:00
Anders Carlsson
122059b2e9 Fix bug spotted by Chris. 
llvm-svn: 40725
 2007-08-02 06:05:19 +00:00
Anders Carlsson
89ea07e724 Add extend and extOrTrunc methods that do sign or zero extension depending on whether the integer is signed or not 
llvm-svn: 40724
 2007-08-02 06:00:13 +00:00
Evan Cheng
3163814591 Switch some multiplication instructions over to the new scheme for testing. 
llvm-svn: 40723
 2007-08-02 05:48:35 +00:00
Evan Cheng
a06b9cf09f Do not emit copies for physical register output if it's not used. 
llvm-svn: 40722
 2007-08-02 05:29:38 +00:00
Evan Cheng
5a30bb6d47 Fix test. 
llvm-svn: 40721
 2007-08-02 05:04:16 +00:00
Chris Lattner
2cacb6cc56 Fix PR1575 and test/Transforms/CondProp/2007-08-01-InvalidRead.ll 
llvm-svn: 40720
 2007-08-02 04:47:05 +00:00
Reid Spencer
37f222a6bf Adjust for new CallInst constructor interface. 
This fixes test/Feature/llvm2cpp.ll

llvm-svn: 40714
 2007-08-02 03:30:26 +00:00
Scott Michel
199544367f Style police: Expand the tabs to spaces! 
llvm-svn: 40712
 2007-08-02 02:22:46 +00:00
Christopher Lamb
9a2a58c818 Teach BasicAA about noalias parameter attributes, but do it correctly this time. 
llvm-svn: 40711
 2007-08-02 01:18:14 +00:00
Evan Cheng
14bd520741 Instead of adding copyfromreg's to handle physical definitions. Now isel can 
simply specify them as results and let scheduledag handle them. That
is, instead of
SDOperand Flag = DAG.getTargetNode(Opc, MVT::i32, MVT::Flag, ...)
SDOperand Result = DAG.getCopyFromReg(Chain, X86::EAX, MVT::i32, Flag)

Just write:
SDOperand Result = DAG.getTargetNode(Opc, MVT::i32, MVT::i32, ...)

And let scheduledag emit the move from X86::EAX to a virtual register.

llvm-svn: 40710
 2007-08-02 00:28:15 +00:00
Evan Cheng
8f126e59f5 Added TargetInstrDescriptor::numDefs - num of results. 
llvm-svn: 40709
 2007-08-02 00:20:17 +00:00
Evan Cheng
019ecf3b91 Can't handle offset and scale if rip-relative addressing is to be used. 
llvm-svn: 40703
 2007-08-01 23:46:47 +00:00
Evan Cheng
69bbf3ed2a Mac OS X X86-64 low 4G address not available. 
llvm-svn: 40702
 2007-08-01 23:46:10 +00:00
Evan Cheng
0fa6cdbff5 Mac OS X X86-64 low 4G address not available. 
llvm-svn: 40701
 2007-08-01 23:45:51 +00:00
Devang Patel
f21f509c2c Undo previous check-in. 
llvm-svn: 40698
 2007-08-01 23:24:50 +00:00
Evan Cheng
b050c17b31 Some out operands were incorrectly specified as input operands. 
llvm-svn: 40697
 2007-08-01 23:07:38 +00:00
Reid Spencer
329af05ad3 Make sure these tests pass for the right reasons (verifier error, rather than 
failure to assemble).

llvm-svn: 40696
 2007-08-01 23:07:36 +00:00
Devang Patel
51c61e730a Update dominator info for the middle blocks created while spliting 
exit edge to preserve LCSSA.

Fix dominance frontier update during loop unswitch. This fixes PR 1589.

llvm-svn: 40695
 2007-08-01 22:23:50 +00:00
Owen Anderson
7028dfaf9d Make non-local memdep not be recursive, and fix a bug on 403.gcc that this exposed. 
llvm-svn: 40692
 2007-08-01 22:01:54 +00:00
Evan Cheng
defb3b8389 Missing Requires. 
llvm-svn: 40691
 2007-08-01 21:42:24 +00:00
Evan Cheng
8183a284fd New test. Bogus implicit-def prevented a copy from being coalesced. 
llvm-svn: 40690
 2007-08-01 20:26:40 +00:00
Evan Cheng
fb587a3851 Be more precise. 
llvm-svn: 40689
 2007-08-01 20:22:37 +00:00
Evan Cheng
d6d66f0cf4 Bugs: missing partial uses and redundant partial defs. 
llvm-svn: 40688
 2007-08-01 20:18:21 +00:00
Lauro Ramos Venancio
699e4b2dec Add a test for the load/store alignment. 
llvm-svn: 40687
 2007-08-01 20:07:59 +00:00
Lauro Ramos Venancio
1ef30713de Expand unaligned loads/stores when the target doesn't support them. (PR1548) 
llvm-svn: 40682
 2007-08-01 19:34:21 +00:00
Christopher Lamb
1787c27f13 Clean up C++ restrict test cases and add a test for restrict qualified methods. 
llvm-svn: 40681
 2007-08-01 18:48:29 +00:00
Chris Lattner
0b930d11c7 these tests aren't xfailed. 
llvm-svn: 40680
 2007-08-01 18:37:44 +00:00
Chris Lattner
5d3a429915 we're now handling this right :) 
llvm-svn: 40675
 2007-08-01 17:10:30 +00:00
Owen Anderson
86544141cf Forgot to update these files for the FastDSE changes. 
llvm-svn: 40674
 2007-08-01 16:53:51 +00:00
Dan Gohman
7dd04fb91c More explicit keywords. 
llvm-svn: 40673
 2007-08-01 15:32:29 +00:00
Dan Gohman
8e7234519e Change a .size directive to use a tab instead of a space, for consistency. 
llvm-svn: 40672
 2007-08-01 14:42:30 +00:00
Dan Gohman
53bb686577 Make ImmutablePass::runOnModule non-virtual, since it is not 
intended to be overridden.

llvm-svn: 40671
 2007-08-01 14:28:20 +00:00
Owen Anderson
58e64df595 Rename FastDSE to just DSE. 
llvm-svn: 40668
 2007-08-01 06:36:51 +00:00
Owen Anderson
45499c55e5 Move FastDSE in to DeadStoreElimination. 
llvm-svn: 40667
 2007-08-01 06:30:51 +00:00
Owen Anderson
48e3b68d57 Remove old DSE. 
llvm-svn: 40666
 2007-08-01 06:30:10 +00:00
David Greene
29112580c6 Update generated files. 
llvm-svn: 40663
 2007-08-01 03:59:32 +00:00
David Greene
f06a395bb9 New CallInst interface to address GLIBCXX_DEBUG errors caused by 
indexing an empty std::vector.

Updates to all clients.

llvm-svn: 40660
 2007-08-01 03:43:44 +00:00
Evan Cheng
ab0a826b88 Indexed loads each has 2 outputs. 
llvm-svn: 40658
 2007-08-01 00:12:08 +00:00
Evan Cheng
7a025bad7a Requires SSE2. 
llvm-svn: 40657
 2007-08-01 00:10:12 +00:00
Owen Anderson
89022c1367 Don't let the memory allocator outsmart GVN. ;-) 
llvm-svn: 40655
 2007-07-31 23:27:13 +00:00
Evan Cheng
8889a56947 simpleregistercoalescing -> regcoalescing. It's too long for me to handle. 
llvm-svn: 40654
 2007-07-31 22:37:44 +00:00
Owen Anderson
9c996b3212 Fix a failure I accidentally caused in my last commit by mishandling the 
removal of redundant phis.

llvm-svn: 40650
 2007-07-31 20:18:28 +00:00
Lauro Ramos Venancio
abf6c6d469 Fix a bug in GetKnownAlignment of packed structs. 
llvm-svn: 40649
 2007-07-31 20:13:21 +00:00
Dan Gohman
e3464e6bec Change the x86 assembly output to use tab characters to separate the 
mnemonics from their operands instead of single spaces. This makes the
assembly output a little more consistent with various other compilers
(f.e. GCC), and slightly easier to read. Also, update the regression
tests accordingly.

llvm-svn: 40648
 2007-07-31 20:11:57 +00:00
David Greene
4251f42689 Fix GLIBCXX_DEBUG error owing to dereference of end iterator. There's 
no guarantee that an instruction returned by getDependency exists in
the maps.

llvm-svn: 40647
 2007-07-31 20:01:27 +00:00
Owen Anderson
d178c05c62 Fix a misoptimization in aha. 
llvm-svn: 40642
 2007-07-31 17:43:14 +00:00
Dan Gohman
7702c23d4a Use SCEVExpander::InsertCastOfTo instead of calling new IntToPtrInst 
directly, because the insert point used by the SCEVExpander may vary
from what LSR originally computes.

llvm-svn: 40641
 2007-07-31 17:22:27 +00:00