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33700 Commits

Author SHA1 Message Date
Devang Patel a882328e61 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 fa3eeeedc0 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 b0418fc607 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 af8908451e Fix bug spotted by Chris. 
llvm-svn: 40725
 2007-08-02 06:05:19 +00:00
Anders Carlsson cac9c624a1 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 473c5111c3 Switch some multiplication instructions over to the new scheme for testing. 
llvm-svn: 40723
 2007-08-02 05:48:35 +00:00
Evan Cheng 358c3d1dac 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 824693c87a Fix test. 
llvm-svn: 40721
 2007-08-02 05:04:16 +00:00
Chris Lattner d7cb625a9e Fix PR1575 and test/Transforms/CondProp/2007-08-01-InvalidRead.ll 
llvm-svn: 40720
 2007-08-02 04:47:05 +00:00
Reid Spencer e621b07e5e 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 5b80ecbcf5 Style police: Expand the tabs to spaces! 
llvm-svn: 40712
 2007-08-02 02:22:46 +00:00
Christopher Lamb 1a80201426 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 c5549fc3a0 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 c9de9cec18 Added TargetInstrDescriptor::numDefs - num of results. 
llvm-svn: 40709
 2007-08-02 00:20:17 +00:00
Evan Cheng d3d92890fc 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 9a3b2b09ad Mac OS X X86-64 low 4G address not available. 
llvm-svn: 40702
 2007-08-01 23:46:10 +00:00
Evan Cheng 763cdfd371 Mac OS X X86-64 low 4G address not available. 
llvm-svn: 40701
 2007-08-01 23:45:51 +00:00
Devang Patel 34890b2f27 Undo previous check-in. 
llvm-svn: 40698
 2007-08-01 23:24:50 +00:00
Evan Cheng 58c3c30921 Some out operands were incorrectly specified as input operands. 
llvm-svn: 40697
 2007-08-01 23:07:38 +00:00
Reid Spencer ae4675226e 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 561b0c29a3 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 c321e5e272 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 da549ece5c Missing Requires. 
llvm-svn: 40691
 2007-08-01 21:42:24 +00:00
Evan Cheng 41ccce7169 New test. Bogus implicit-def prevented a copy from being coalesced. 
llvm-svn: 40690
 2007-08-01 20:26:40 +00:00
Evan Cheng 6f2ce6b842 Be more precise. 
llvm-svn: 40689
 2007-08-01 20:22:37 +00:00
Evan Cheng d8ded48468 Bugs: missing partial uses and redundant partial defs. 
llvm-svn: 40688
 2007-08-01 20:18:21 +00:00
Lauro Ramos Venancio e2e7e384e3 Add a test for the load/store alignment. 
llvm-svn: 40687
 2007-08-01 20:07:59 +00:00
Lauro Ramos Venancio 0db4418a5f 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 3567bd863f 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 bc1a69684c these tests aren't xfailed. 
llvm-svn: 40680
 2007-08-01 18:37:44 +00:00
Chris Lattner 9182684222 we're now handling this right :) 
llvm-svn: 40675
 2007-08-01 17:10:30 +00:00
Owen Anderson 4d34e40c6d Forgot to update these files for the FastDSE changes. 
llvm-svn: 40674
 2007-08-01 16:53:51 +00:00
Dan Gohman 34d442f274 More explicit keywords. 
llvm-svn: 40673
 2007-08-01 15:32:29 +00:00
Dan Gohman d541c831c3 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 f7325ccf90 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 10e52eddb3 Rename FastDSE to just DSE. 
llvm-svn: 40668
 2007-08-01 06:36:51 +00:00
Owen Anderson e4a374812b Move FastDSE in to DeadStoreElimination. 
llvm-svn: 40667
 2007-08-01 06:30:51 +00:00
Owen Anderson 4894e6d8bc Remove old DSE. 
llvm-svn: 40666
 2007-08-01 06:30:10 +00:00
David Greene c8e6508572 Update generated files. 
llvm-svn: 40663
 2007-08-01 03:59:32 +00:00
David Greene 17a5dfe6f7 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 aa39b39eec Indexed loads each has 2 outputs. 
llvm-svn: 40658
 2007-08-01 00:12:08 +00:00
Evan Cheng 09a141df31 Requires SSE2. 
llvm-svn: 40657
 2007-08-01 00:10:12 +00:00
Owen Anderson 10ffa860d8 Don't let the memory allocator outsmart GVN. ;-) 
llvm-svn: 40655
 2007-07-31 23:27:13 +00:00
Evan Cheng e02b2d7e69 simpleregistercoalescing -> regcoalescing. It's too long for me to handle. 
llvm-svn: 40654
 2007-07-31 22:37:44 +00:00
Owen Anderson 2464f4f048 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 549e775e67 Fix a bug in GetKnownAlignment of packed structs. 
llvm-svn: 40649
 2007-07-31 20:13:21 +00:00
Dan Gohman 54ec4bfa5f 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 87801e8773 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 d58fa6b09f Fix a misoptimization in aha. 
llvm-svn: 40642
 2007-07-31 17:43:14 +00:00
Dan Gohman 8c4da37b1f 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