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756 Commits

Author SHA1 Message Date
Chris Lattner 25fa9718cb Fix Bug: Linker/2003-05-15-TypeProblem.ll 
llvm-svn: 6225
 2003-05-15 16:30:55 +00:00
Chris Lattner 58ea8ff469 Fix major problem with appending linkage changes 
llvm-svn: 6185
 2003-05-14 12:11:51 +00:00
Chris Lattner f779becc5a Implement linkage of appending global variables! 
llvm-svn: 6178
 2003-05-13 21:33:43 +00:00
Chris Lattner 0895025b30 Fix bug: LoopPreheaders/2003-05-12-PreheaderExitOfChild.ll 
llvm-svn: 6153
 2003-05-12 22:04:34 +00:00
Chris Lattner b02697210e Handle va_arg instruction correctly 
llvm-svn: 6030
 2003-05-08 02:50:13 +00:00
Chris Lattner fce555a981 Don't inline functions that take variable numbers of arguments! 
llvm-svn: 6024
 2003-05-08 02:36:43 +00:00
Chris Lattner d9bd5a0443 Remove using decl 
llvm-svn: 6023
 2003-05-08 02:34:52 +00:00
Chris Lattner caa1de250b Attempt to fix sumant's typesafety issue 
llvm-svn: 5984
 2003-05-02 19:32:04 +00:00
Chris Lattner 3666378690 Fix spelling 
llvm-svn: 5983
 2003-05-02 19:26:34 +00:00
Chris Lattner df7cc91159 Fix Bug: LowerSwitch/2003-05-01-PHIProblem.ll 
llvm-svn: 5979
 2003-05-01 22:21:21 +00:00
Chris Lattner 802c63d964 Fix bug: LevelRaise/2003-05-01-CallCast.ll 
llvm-svn: 5975
 2003-05-01 21:02:53 +00:00
Chris Lattner dd65d863a9 Fix another case where constexprs could cause a crash 
llvm-svn: 5972
 2003-04-30 22:34:06 +00:00
Chris Lattner 9244df60d3 Fix constant folding of constexprs 
llvm-svn: 5971
 2003-04-30 22:19:10 +00:00
Chris Lattner fcd1fe4f12 Create constant expression casts instead of constant instructions if possible 
llvm-svn: 5968
 2003-04-28 01:25:38 +00:00
Chris Lattner 9810b94850 Fix several bugs: 
* Warnings were emitted all of the time and were really annoying
  * Functions could not be resolved unless they had external linkage.  Linkonce
    linkage was not allowed
  * ConstantPointerRef's were not handled when linking functions
    we now actually handle cast (CPR) to X -> cast (NewCPR) to X

llvm-svn: 5967
 2003-04-28 01:23:29 +00:00
Chris Lattner 4a6c3e79b0 Avoid naming things exactly the same 
llvm-svn: 5966
 2003-04-27 22:55:56 +00:00
Chris Lattner b68a34eb3f Fix bug: ADCE/2003-04-25-PHIPostDominateProblem.ll 
llvm-svn: 5952
 2003-04-25 22:53:27 +00:00
Chris Lattner 3c98276168 Fix major problem with PHI node traversal: rechecking PHIs should go into 
the visit function.  The worklist is for when their lattice value changes.

llvm-svn: 5927
 2003-04-25 03:35:10 +00:00
Chris Lattner cccc5c76c8 Minor non-functional changes: 
* Spell propagate right
  * Improve performance of phi node handling
  * Delete using directive
  * Other minor changes

llvm-svn: 5920
 2003-04-25 02:50:03 +00:00
Chris Lattner 3a2fe67908 Fix bug: mem2reg/2003-04-24-MultipleIdenticalSuccessors.ll 
llvm-svn: 5919
 2003-04-25 00:54:58 +00:00
Chris Lattner c1f9206c8c Make the levelraise pass be well behaved w.r.t the TargetData that the current 
PassMAnager provides.

llvm-svn: 5896
 2003-04-24 18:25:27 +00:00
Chris Lattner 364437e6a3 Fix iterator invalidation problem 
llvm-svn: 5895
 2003-04-24 17:52:20 +00:00
Chris Lattner b57ed83e28 Make sure that the cloned module retains the type symbol table entries! 
llvm-svn: 5894
 2003-04-24 17:15:33 +00:00
Chris Lattner 0aebf8f80a Make sure to preserve endiannes and pointer size when cloning modules! 
llvm-svn: 5892
 2003-04-24 15:54:40 +00:00
Chris Lattner 21a8e8a2c9 Fix Bug: Linker/2003-04-23-LinkOnceLost.ll 
llvm-svn: 5879
 2003-04-23 18:38:39 +00:00
Chris Lattner 889f620841 Remove unnecesary &*'s 
llvm-svn: 5872
 2003-04-23 16:37:45 +00:00
Chris Lattner 1b094a0f2e New pass to lower switch instructions to branch instructions 
llvm-svn: 5865
 2003-04-23 16:23:59 +00:00
Chris Lattner 1f45f4e4d8 Minor cleanups 
llvm-svn: 5863
 2003-04-23 16:18:14 +00:00
Chris Lattner c6ce4dafbe Add warning when linking modules with disagreeing target properties 
llvm-svn: 5845
 2003-04-22 19:13:20 +00:00
Chris Lattner d36ad926f2 Preserve the new moduleID field 
llvm-svn: 5835
 2003-04-22 18:02:26 +00:00
Chris Lattner 4522f446c1 Fix bug: 2003-01-30-LinkerRename.ll 
llvm-svn: 5828
 2003-04-21 21:15:04 +00:00
Chris Lattner 4adb8536d9 Fix linking a function with qualifiers to a external function declaration: 
Fixed bug: Linker/2003-04-21-Linkage.ll

llvm-svn: 5827
 2003-04-21 21:07:05 +00:00
Chris Lattner 46371cc500 Fix bug where use still existed in dead code 
llvm-svn: 5824
 2003-04-21 19:15:26 +00:00
Chris Lattner defe5c72e8 Implement: FunctionResolve/2003-04-18-ForwardDeclGlobal.ll 
llvm-svn: 5816
 2003-04-19 00:15:27 +00:00
Chris Lattner 5f5d985583 Fix bug: Mem2reg/2003-04-18-DeadBlockProblem.ll 
llvm-svn: 5810
 2003-04-18 19:25:22 +00:00
Chris Lattner 424132aa57 Global constants CAN be external 
llvm-svn: 5808
 2003-04-18 04:34:29 +00:00
Chris Lattner e9f4232a70 Refactor CloneFunction to expose the new CloneBasicBlock function 
llvm-svn: 5806
 2003-04-18 03:50:09 +00:00
Chris Lattner de6f87ba07 New const_cast instead of c style cast 
llvm-svn: 5805
 2003-04-18 03:49:49 +00:00
Chris Lattner 46b3d30bf6 Change the interface to constant expressions to allow automatic folding 
llvm-svn: 5793
 2003-04-16 22:40:51 +00:00
Chris Lattner 379a8d2d1c Add new linkage types to support a real frontend 
llvm-svn: 5786
 2003-04-16 20:28:45 +00:00
Chris Lattner 01587d4ad1 Make help message more clear 
llvm-svn: 5775
 2003-04-13 03:50:14 +00:00
Chris Lattner 18b1bf67b2 * Fix bug: Mem2Reg/2003-04-10-DFNotFound.ll 
* Make Mem2Reg assign version numbers now for renamed variables instead of
  .mem2reg suffixes.  This produces what people think of as SSA.

llvm-svn: 5771
 2003-04-10 19:41:13 +00:00
Chris Lattner 9023155621 Initial checkin of PRE on LLVM. This implementation is still lacking in 
several ways:

 * Load expressions are not PRE'd well.  Alias Analysis should be used to
   get accurate information when computing anticipatibility.
 * The expression collection implementation does not handle PHI nodes properly,
   thus the implementation misses many opportunities to PRE.
 * This code could be sped up quite a bit

Despite these flaws, the code seems to work well, and handles PR's as one
would expect.

llvm-svn: 5759
 2003-03-31 19:55:43 +00:00
Chris Lattner 07f7e5d3b5 * We now preserve the no-critical-edge pass (because we cannot insert critical edges) 
* Small modification to be more efficient

llvm-svn: 5757
 2003-03-31 17:30:25 +00:00
Chris Lattner c42046f9f1 Move BreakCriticalEdges pass to lib/Transforms/Utils 
llvm-svn: 5754
 2003-03-21 21:43:19 +00:00
Chris Lattner 7fb29e19f0 Add the following instcombine xforms: 
- Implement simple reassociation: (A|c1)|(B|c2) == (A|B)|(c1|c2)
  - (A & C1)+(B & C2) -> (A & C1)|(B & C2) iff C1&C2 == 0
  - (A & C1)^(B & C2) -> (A & C1)|(B & C2) iff C1&C2 == 0

llvm-svn: 5743
 2003-03-11 00:12:48 +00:00
Chris Lattner 934a64cfa4 Implement: -A*-B == A*B 
llvm-svn: 5740
 2003-03-10 23:23:04 +00:00
Chris Lattner 3e327a4334 Add new transformation: // (~A | ~B) == (~(A & B)) 
llvm-svn: 5738
 2003-03-10 23:13:59 +00:00
Chris Lattner bb74e2284a Generalize not and neg comparison testers to allow constant to be considered not'able and neg'able. This 
allows optimization of this:
int %test4(int %A, int %B) {
        %a = xor int %A, -1
        %c = and int %a, 5    ; 5 = ~c2
        %d = xor int %c, -1
        ret int %d
}

into this:
int %test4(int %A, int %B) {            ; No predecessors!
        %c.demorgan = or int %A, -6             ; <int> [#uses=1]
        ret int %c.demorgan
}

llvm-svn: 5736
 2003-03-10 23:06:50 +00:00
Chris Lattner dcf240a649 Generalize (A+c1)+c2 optimization to work with all associative operators 
llvm-svn: 5733
 2003-03-10 21:43:22 +00:00