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55753 Commits

Author SHA1 Message Date
Jakob Stoklund Olesen 7725526de1 Add <imp-def> and <imp-kill> operands when replacing virtual sub-register defs and kills. 
An instruction like this:

  %reg1097:1<def> = VMOVSR %R3<kill>, 14, %reg0

Must be replaced with this when substituting physical registers:

  %S0<def> = VMOVSR %R3<kill>, 14, %reg0, %D0<imp-def>

llvm-svn: 92812
 2010-01-06 00:29:28 +00:00
Bill Wendling c075acbb54 The previous code could potentially cause a cycle. Allow ordering w.r.t. a 0 order. 
llvm-svn: 92810
 2010-01-06 00:23:35 +00:00
Bill Wendling 578865ff3d Only check the ordering if there is an ordering for each nodes. 
llvm-svn: 92807
 2010-01-06 00:09:23 +00:00
Bill Wendling 0a7056fe52 Add a semi-primitive form of scheduling via the "SDNode ordering" to the 
bottom-up scheduler. We prefer the lower order number.

llvm-svn: 92806
 2010-01-05 23:48:12 +00:00
Chris Lattner 8600dd3d7c simplify this code. 
llvm-svn: 92800
 2010-01-05 23:00:30 +00:00
Dan Gohman f34b289057 Move this test from test/Transforms/IndVarSimplify to 
test/CodeGen/X86, as doesn't use -indvars, and it does use
llc -march=x86-64.

llvm-svn: 92799
 2010-01-05 22:52:54 +00:00
Bill Wendling 03f0af372c Don't assign the shift the same type as the variable being shifted. This could 
result in illegal types for the SHL operator.

llvm-svn: 92797
 2010-01-05 22:39:10 +00:00
Johnny Chen 567945636f Undo r92785, it caused test failure. 
llvm-svn: 92796
 2010-01-05 22:37:28 +00:00
Chris Lattner 554d0564ff make this a static function instead of a method. 
llvm-svn: 92795
 2010-01-05 22:30:42 +00:00
Dan Gohman 404a984780 Don't use the ISD::NodeType enum for SDNode opcodes, as CodeGen 
uses several kinds of opcode values which are not declared within
that enum. This fixes PR5946.

llvm-svn: 92794
 2010-01-05 22:26:32 +00:00
Victor Hernandez dc6e65a6a8 Re-add parsing of function-local metadata; this time with testcase. 
llvm-svn: 92793
 2010-01-05 22:22:14 +00:00
Chris Lattner a93c63c22d more rearrangement and cleanup, fix my test failure. 
llvm-svn: 92792
 2010-01-05 22:21:18 +00:00
Chris Lattner f476ef502c cleanup 
llvm-svn: 92790
 2010-01-05 22:07:33 +00:00
Chris Lattner f88dd5ed64 remove two trunc xforms that are subsumed by EvaluateInDifferentType. 
The only difference is that EvaluateInDifferentType checks to ensure
they are profitable before doing them :)

llvm-svn: 92788
 2010-01-05 22:01:41 +00:00
Chris Lattner 7c0c64831c merge some tests. 
llvm-svn: 92786
 2010-01-05 21:54:09 +00:00
Johnny Chen a9f39bdbb6 Add Rt2 to the asm format string for 32-bit Thumb load/store register dual 
instructions.  Thumb does not have the restriction that t2 = t+1.

llvm-svn: 92785
 2010-01-05 21:51:46 +00:00
Chris Lattner dec34d8cef merge cast2 into cast.ll 
llvm-svn: 92784
 2010-01-05 21:48:13 +00:00
Devang Patel 6edcd3994c Allow null to be an element of NamedMDNode. e.g. !llvm.stuff = !{!0, !1, null} 
llvm-svn: 92783
 2010-01-05 21:47:32 +00:00
Chris Lattner f312cfa250 remove useless test. 
llvm-svn: 92782
 2010-01-05 21:46:22 +00:00
Chris Lattner 16c7a332d2 another example. 
llvm-svn: 92781
 2010-01-05 21:43:08 +00:00
Jakob Stoklund Olesen aee326860c Don't specify CR sub-registers as implicit defs of BL instructions. 
It is enough to give the super registers CR0, CR1, ..., and specifying the
sub-registers as well causes confusion in the liveness computations.

llvm-svn: 92778
 2010-01-05 21:38:37 +00:00
Chris Lattner 9068136944 remove a useless negative test, add a rdar # to an xfail that I'm working on. 
llvm-svn: 92777
 2010-01-05 21:37:44 +00:00
Chris Lattner e3e6f4ce62 clean up tests. 
llvm-svn: 92776
 2010-01-05 21:32:59 +00:00
Chris Lattner 44a63815b9 just remove this xform which is subsumed by others. 
llvm-svn: 92775
 2010-01-05 21:16:30 +00:00
Victor Hernandez c2044a1193 Fix comment for CheckDebugInfoIntrinsics 
llvm-svn: 92774
 2010-01-05 21:13:46 +00:00
Chris Lattner b82a840eb2 move a trunc-specific transform out of commonIntCastTransforms into visitTrunc. 
llvm-svn: 92773
 2010-01-05 21:11:17 +00:00
Dan Gohman c3f2137c06 Restore dump() methods to Loop and MachineLoop. 
llvm-svn: 92772
 2010-01-05 21:08:02 +00:00
Benjamin Kramer d2564e3afb Move remaining stuff to the isInteger predicate. 
llvm-svn: 92771
 2010-01-05 21:05:54 +00:00
Chris Lattner fd7e42b65d move a zext specific xform out of commonIntCastTransforms into visitZExt and modernize it. 
llvm-svn: 92770
 2010-01-05 21:04:47 +00:00
Jakob Stoklund Olesen 4cb7702c4f Remove livein checks from machine code verifier. 
A phi operand that is implicitly defined in a predecessor becomes an undefined
register after phi elimination. This causes a lot of false positives when the
verifier is checking if live-in registers are live-out from all predecessors.

Removing the verifier checks seems like a better solution than insisting on
IMPLICIT_DEF instructions in predecessor blocks.

llvm-svn: 92769
 2010-01-05 20:59:36 +00:00
Chris Lattner aaccc8de62 move a trunc-specific xform out of commonIntCastTransforms into visitTrunc 
llvm-svn: 92768
 2010-01-05 20:57:30 +00:00
Chris Lattner dec6847bf6 reduce indentation 
llvm-svn: 92766
 2010-01-05 20:56:24 +00:00
Anton Korobeynikov 6c1c205183 Regenerate 
llvm-svn: 92763
 2010-01-05 20:45:43 +00:00
Anton Korobeynikov d93ecc8fef Proper deduce z/System LLVM target from target triple when 
--enable-targets=host is specified.

llvm-svn: 92762
 2010-01-05 20:45:13 +00:00
Devang Patel e307348325 NamedMDNode is a collection MDNodes. 
llvm-svn: 92761
 2010-01-05 20:41:31 +00:00
Benjamin Kramer a81a6dff0d Convert a ton of simple integer type equality tests to the new predicate. 
llvm-svn: 92760
 2010-01-05 20:07:06 +00:00
Benjamin Kramer 76aa677ec3 Add a new predicate for integer type equality tests. 
llvm-svn: 92759
 2010-01-05 20:04:48 +00:00
David Greene 297bfe6d71 Add an !eq() operator to TableGen. It operates on strings only. 
Use !cast<string>() to compare other types of objects.

llvm-svn: 92754
 2010-01-05 19:11:42 +00:00
Dan Gohman 60b0a86a08 Add an entry on SmallBitVector. 
llvm-svn: 92747
 2010-01-05 18:24:00 +00:00
Chris Lattner 54f4e39956 optimize comparisons against cttz/ctlz/ctpop, patch by Alastair Lynn! 
llvm-svn: 92745
 2010-01-05 18:09:56 +00:00
Dan Gohman fb4193625a Delete useless trailing semicolons. 
llvm-svn: 92740
 2010-01-05 17:55:26 +00:00
Dan Gohman c3c031bb37 Nick Lewycky pointed out that this code makes changes unconditionally. 
llvm-svn: 92739
 2010-01-05 17:50:58 +00:00
David Greene fb652a7a5c Have TableGen emit code that uses dbgs() rather than errs(). 
llvm-svn: 92738
 2010-01-05 17:47:41 +00:00
Devang Patel d146e2e3df If a scope has only one instruction then first instruction is also the last instruction. 
llvm-svn: 92736
 2010-01-05 16:59:17 +00:00
Dan Gohman b5358003fb Set Changed properly after calling DeleteDeadPHIs. 
llvm-svn: 92735
 2010-01-05 16:31:45 +00:00
Dan Gohman 28943873e6 Use do+while instead of while for loops which obviously have a 
non-zero trip count. Use SmallVector's pop_back_val().

llvm-svn: 92734
 2010-01-05 16:27:25 +00:00
Dan Gohman 92fdb96474 Fix indentation. 
llvm-svn: 92733
 2010-01-05 16:20:55 +00:00
Dan Gohman cb99fe9839 Make RecursivelyDeleteTriviallyDeadInstructions, 
RecursivelyDeleteDeadPHINode, and DeleteDeadPHIs return a flag
indicating whether they made any changes.

llvm-svn: 92732
 2010-01-05 15:45:31 +00:00
Dan Gohman 1117a59b84 Some versions of GCC don't like non-static data members in sizeof 
in this context.

llvm-svn: 92731
 2010-01-05 15:28:21 +00:00
Dan Gohman 5976e7d5dd Add a SmallBitVector class, which mimics BitVector but uses only 
a single pointer (PointerIntPair) member. In "small" mode, the
pointer field is reinterpreted as a set of bits. In "large" mode,
the pointer points to a heap-allocated object.

Also, give BitVector empty and swap functions.

And, add some simple unittests for BitVector and SmallBitVector.

llvm-svn: 92730
 2010-01-05 15:04:49 +00:00