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47859e6848
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38018 Commits

Author SHA1 Message Date
Dan Gohman
47859e6848 Don't iterate through the whole block just to find the PHI nodes. 
llvm-svn: 101900
 2010-04-20 14:46:25 +00:00
Gabor Greif
2eaf8afcff use abstract accessors to CallInst 
llvm-svn: 101899
 2010-04-20 13:13:04 +00:00
Benjamin Kramer
b61f85894f PR6880: Don't dereference CallsExternalNode if it's NULL. 
llvm-svn: 101897
 2010-04-20 12:16:50 +00:00
Chris Lattner
b66b0c36cd Bill's change in r95336 broke empty aggregates embedded 
in other types.  fix this by only bumping zero-byte globals
up to a single byte if the *entire global* is zero size,
fixing PR6340.

This also fixes empty arrays etc to be handled correctly,
and only does this on subsection-via-symbols targets (aka
darwin) which is the only place where this matters.

llvm-svn: 101879
 2010-04-20 06:20:21 +00:00
Chris Lattner
04fb51984f teach cellspu how to return i8 and i16 from calls, 
patch by Kalle Raiskila!

llvm-svn: 101875
 2010-04-20 05:36:09 +00:00
Chris Lattner
5041463692 remove a bunch of ad-hoc code to simplify instructions from 
loop unswitch, and use inst simplify instead.  It is more
powerful and less duplication.

llvm-svn: 101874
 2010-04-20 05:33:18 +00:00
Chris Lattner
b6b95141ec move some select simplifications out out instcombine into 
inst simplify.  No functionality change.

llvm-svn: 101873
 2010-04-20 05:32:14 +00:00
Chris Lattner
e5a995a834 RewriteLoopBodyWithConditionConstant can end up rewriting the 
condition we're unswitching on.  In this case, don't try to
simplify the second copy of the loop which may be dead or not,
but is probably a constant now.  This fixes PR6879

llvm-svn: 101870
 2010-04-20 05:09:16 +00:00
Chris Lattner
7a2ce4afd8 reapply 'reject forward references to functions whose type don't match' 
now that the testsuite has been updated.

llvm-svn: 101866
 2010-04-20 04:49:11 +00:00
Dan Gohman
5f8489396e Delete a redundant return statement. 
llvm-svn: 101860
 2010-04-20 01:58:20 +00:00
Bill Wendling
887dac2aa6 The visitXOR method can return the same SDNode. If so, we don't want to delete 
it as it's not dead.

llvm-svn: 101855
 2010-04-20 01:25:01 +00:00
Chris Lattner
339a3cd59b disable optimizations in this directory for MSVC9. This avoids 
an optimizer infinite loop on the file, PR6866.

llvm-svn: 101854
 2010-04-20 01:11:32 +00:00
Johnny Chen
4f388a02d6 Better error-handling for DisassembleThumb2DPModImm() with 2-reg operands where 
d==15 is considered illegal.  Return false instead of assert().

llvm-svn: 101852
 2010-04-20 01:01:57 +00:00
Eric Christopher
53e7e0fcfb Remove the palignr intrinsics now that we lower them to vector shuffles, 
shifts and null vectors. Autoupgrade these to what we'd lower them to.

Add a testcase to exercise this.

llvm-svn: 101851
 2010-04-20 00:59:54 +00:00
Dan Gohman
5d47f180a2 Remove this debug output; it isn't that useful, and it's incomplete 
in the case where a basic block is split.

llvm-svn: 101850
 2010-04-20 00:56:44 +00:00
Dan Gohman
e8387b1250 Sink DebugLoc handling out of SelectionDAGISel into FastISel and 
SelectionDAGBuilder, where it doesn't have to be as complicated.

llvm-svn: 101848
 2010-04-20 00:48:35 +00:00
Chris Lattner
2f4001f3a8 make CallGraphNode dtor abort if a node is deleted when there are still 
references to it.

llvm-svn: 101847
 2010-04-20 00:47:34 +00:00
Chris Lattner
92df9f46f0 make the inliner do less work for leaf functions. 
llvm-svn: 101846
 2010-04-20 00:47:08 +00:00
Chris Lattner
994155dc91 Fix rdar://7879828 - crash in CallGraph, a self host issue. 
Arg promotion was deleting call graph nodes that still had references
from the 'indirect' CGN.  Like the inliner, it should only delete the
function if all references are gone.

llvm-svn: 101845
 2010-04-20 00:46:50 +00:00
Dan Gohman
c64745ba43 Remove MachineFunction's DefaultDebugLoc member, and make DwarfDebug.cpp 
responsible for figuring out what that's supposed to be on its own.

llvm-svn: 101844
 2010-04-20 00:37:27 +00:00
Dan Gohman
1d05054dc1 Reapply the removal of SelectionDAGISel's BB, with a fix for the case 
where multiple blocks are emitted; functions which do this need to return
the new BB so that their callers can stay current.

llvm-svn: 101843
 2010-04-20 00:29:35 +00:00
Johnny Chen
1b36569ba8 More IT instruction error-handling improvements from fuzzing. 
llvm-svn: 101839
 2010-04-20 00:15:41 +00:00
Dan Gohman
744e2b34b0 Revert 101825, which is causing trouble. 
llvm-svn: 101832
 2010-04-19 23:34:15 +00:00
Dan Gohman
60e18d1d07 Make BreakAntiDependencies' SUnits argument const, and make the Begin 
and End arguments by-value rather than by-reference.

llvm-svn: 101830
 2010-04-19 23:11:58 +00:00
Johnny Chen
2d0dca9099 Better error handling of invalid IT mask '0000', instead of just asserting. 
llvm-svn: 101827
 2010-04-19 23:02:58 +00:00
Dan Gohman
94383f9d34 Eliminate SelectionDAGISel's "current block" member. Just pass it as 
an argument to things that need it.

llvm-svn: 101825
 2010-04-19 22:51:14 +00:00
Dan Gohman
45789ce594 Delete an unnecessary reference to SelectionDAGISel::BB. 
llvm-svn: 101824
 2010-04-19 22:48:45 +00:00
Dan Gohman
b02e2f6c92 Eliminate the CurMBB member from SelectionDAGBuilder. For places that 
need it, just pass around the parent block of the current instruction
explicitly.

llvm-svn: 101822
 2010-04-19 22:41:47 +00:00
Dan Gohman
e52396cb52 Remove the Expr member from IVUsers. Instead of remembering the expression, 
just ask ScalarEvolution for it on demand. This helps IVUsers be more robust
in the case of expressions changing underneath it. This fixes PR6862.

llvm-svn: 101819
 2010-04-19 21:48:58 +00:00
Johnny Chen
fe24cdbba8 According to A8.6.16 B (Encoding T3) and A8.3 Conditional execution -- A8.3.1 
Pseudocode details of conditional, Condition bits '111x' indicate the
instruction is always executed.  That is, '1111' is a leagl condition field
value, which is now mapped to ARMCC::AL.

Also add a test case for condition field '1111'.

llvm-svn: 101817
 2010-04-19 21:19:52 +00:00
Devang Patel
2a21d92744 Fix typo. add a test case. 
llvm-svn: 101812
 2010-04-19 20:31:39 +00:00
Evan Cheng
8efe9e0351 More progress on promoting i16 operations to i32 for x86. Work in progress. 
llvm-svn: 101808
 2010-04-19 19:29:22 +00:00
Dan Gohman
6bcd9dabb7 Give SelectionDAG a TargetMachine too, rather than having it 
fetch one from the MachineFunction.

llvm-svn: 101807
 2010-04-19 19:22:07 +00:00
Evan Cheng
d65a23c1e6 More 80 col violation. 
llvm-svn: 101806
 2010-04-19 19:17:44 +00:00
Devang Patel
06123c1012 Add DW_AT_APPLE_omit_frame_ptr to encode -fomit-frame-pointer flag. 
llvm-svn: 101805
 2010-04-19 19:14:02 +00:00
Dan Gohman
f1f21fb3c6 Code that needs a TargetMachine should have access to one directly, rather 
than just getting one through a TargetLowering.

llvm-svn: 101802
 2010-04-19 19:05:59 +00:00
Dan Gohman
3c58144bfd Move isInTailCallPosition out of SelectionDAGBuilder, as it isn't 
SelectionDAG-specific.

llvm-svn: 101801
 2010-04-19 18:41:46 +00:00
Dan Gohman
caa827af2c This doesn't need SmallVector.h anymore. 
llvm-svn: 101790
 2010-04-19 17:51:31 +00:00
Johnny Chen
b386de1758 Better error-handling for DisassembleThumb2DPSoReg() where the 3-reg operand 
instructions should have Rd (Inst{11-8}) != 0b1111.

Ref: A6.3 32-bit Thumb instruction encoding
     A6.3.11 Data-processing (shifted register)
llvm-svn: 101788
 2010-04-19 17:16:40 +00:00
Dan Gohman
ede59ecfbb Fix this for std::vectors which don't have .data(). 
llvm-svn: 101785
 2010-04-19 16:33:28 +00:00
Johnny Chen
091c01cb2f ARM disassembler did not react to recent changes to the NEON instruction table. 
VLD1q*_UPD and VST1q*_UPD have the ${dst:dregpair} operand now.

llvm-svn: 101784
 2010-04-19 16:20:34 +00:00
Benjamin Kramer
96b4f6c003 Don't write into MemoryBuffers. 
llvm-svn: 101783
 2010-04-19 16:15:31 +00:00
Dan Gohman
e2e1b9063a Fix -Wcast-qual warnings. 
llvm-svn: 101782
 2010-04-19 15:55:10 +00:00
Dan Gohman
735c177251 Revert 91528 and use a std::vector instead, fixing an abuse of std::string. 
llvm-svn: 101781
 2010-04-19 15:54:44 +00:00
Dan Gohman
f2998652a8 Fix -Wcast-qual warnings. 
llvm-svn: 101779
 2010-04-19 15:42:05 +00:00
Anton Korobeynikov
dc153b7539 Add missed part of prev. commit 
llvm-svn: 101755
 2010-04-18 20:41:42 +00:00
Anton Korobeynikov
e325c693a5 Make processor FUs unique for given itinerary. This extends the limit of 32 
FU per CPU arch to 32 per intinerary allowing precise modelling of quite
complex pipelines in the future.

llvm-svn: 101754
 2010-04-18 20:31:01 +00:00
Chris Lattner
746abd86e7 avoid temporary std::string in non posix_spawn path. 
llvm-svn: 101723
 2010-04-18 17:34:10 +00:00
Benjamin Kramer
2cade0b3ff Eliminate temporary string. 
llvm-svn: 101711
 2010-04-18 09:19:41 +00:00
Benjamin Kramer
6f6354213f Properly inherit the environment on darwin where environ is not available for shared libraries. 
llvm-svn: 101710
 2010-04-18 09:16:04 +00:00