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2d399096cf
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749 Commits

Author SHA1 Message Date
Chris Lattner
2d399096cf Attempt to fix sumant's typesafety issue 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5984 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-02 19:32:04 +00:00
Chris Lattner
e96fda3002 Fix spelling 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5983 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-02 19:26:34 +00:00
Chris Lattner
20af3222da Fix Bug: LowerSwitch/2003-05-01-PHIProblem.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5979 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-01 22:21:21 +00:00
Chris Lattner
cdeb81d412 Fix bug: LevelRaise/2003-05-01-CallCast.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5975 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-05-01 21:02:53 +00:00
Chris Lattner
3f2ec3925f Fix another case where constexprs could cause a crash 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5972 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-30 22:34:06 +00:00
Chris Lattner
fe32e0c578 Fix constant folding of constexprs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5971 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-30 22:19:10 +00:00
Chris Lattner
95549281ec Create constant expression casts instead of constant instructions if possible 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5968 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-28 01:25:38 +00:00
Chris Lattner
1fd95afab3 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5967 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-28 01:23:29 +00:00
Chris Lattner
b53a198613 Avoid naming things exactly the same 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5966 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-27 22:55:56 +00:00
Chris Lattner
619f825640 Fix bug: ADCE/2003-04-25-PHIPostDominateProblem.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5952 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-25 22:53:27 +00:00
Chris Lattner
bceb2b0061 Fix major problem with PHI node traversal: rechecking PHIs should go into 
the visit function.  The worklist is for when their lattice value changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5927 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-25 03:35:10 +00:00
Chris Lattner
9de28289f8 Minor non-functional changes: 
* Spell propagate right
  * Improve performance of phi node handling
  * Delete using directive
  * Other minor changes


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5920 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-25 02:50:03 +00:00
Chris Lattner
c8789cb40b Fix bug: mem2reg/2003-04-24-MultipleIdenticalSuccessors.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5919 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-25 00:54:58 +00:00
Chris Lattner
16125fb749 Make the levelraise pass be well behaved w.r.t the TargetData that the current 
PassMAnager provides.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5896 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-24 18:25:27 +00:00
Chris Lattner
ad80a46caa Fix iterator invalidation problem 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5895 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-24 17:52:20 +00:00
Chris Lattner
892310eaff Make sure that the cloned module retains the type symbol table entries! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5894 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-24 17:15:33 +00:00
Chris Lattner
7899b74fdb Make sure to preserve endiannes and pointer size when cloning modules! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5892 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-24 15:54:40 +00:00
Chris Lattner
c2b97d43a0 Fix Bug: Linker/2003-04-23-LinkOnceLost.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5879 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-23 18:38:39 +00:00
Chris Lattner
e408e25132 Remove unnecesary &*'s 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5872 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-23 16:37:45 +00:00
Chris Lattner
14383485ac New pass to lower switch instructions to branch instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5865 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-23 16:23:59 +00:00
Chris Lattner
350c0a8216 Minor cleanups 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5863 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-23 16:18:14 +00:00
Chris Lattner
43a9994c01 Add warning when linking modules with disagreeing target properties 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5845 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-22 19:13:20 +00:00
Chris Lattner
37f59419b8 Preserve the new moduleID field 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5835 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-22 18:02:26 +00:00
Chris Lattner
2719bac905 Fix bug: 2003-01-30-LinkerRename.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5828 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-21 21:15:04 +00:00
Chris Lattner
0fec08eb58 Fix linking a function with qualifiers to a external function declaration: 
Fixed bug: Linker/2003-04-21-Linkage.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5827 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-21 21:07:05 +00:00
Chris Lattner
085c801dee Fix bug where use still existed in dead code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5824 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-21 19:15:26 +00:00
Chris Lattner
ea2294a498 Implement: FunctionResolve/2003-04-18-ForwardDeclGlobal.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5816 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-19 00:15:27 +00:00
Chris Lattner
393689afa9 Fix bug: Mem2reg/2003-04-18-DeadBlockProblem.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5810 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-18 19:25:22 +00:00
Chris Lattner
156bcf3f65 Global constants CAN be external 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5808 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-18 04:34:29 +00:00
Chris Lattner
17d145d26f Refactor CloneFunction to expose the new CloneBasicBlock function 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5806 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-18 03:50:09 +00:00
Chris Lattner
15faa8498c New const_cast instead of c style cast 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5805 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-18 03:49:49 +00:00
Chris Lattner
fb242b6edc Change the interface to constant expressions to allow automatic folding 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5793 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-16 22:40:51 +00:00
Chris Lattner
4ad02e726d Add new linkage types to support a real frontend 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5786 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-16 20:28:45 +00:00
Chris Lattner
af7ccd9bba Make help message more clear 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5775 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-13 03:50:14 +00:00
Chris Lattner
d4bd3eba5d * 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5771 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-04-10 19:41:13 +00:00
Chris Lattner
e941291a7a 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5759 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-03-31 19:55:43 +00:00
Chris Lattner
6c0e0496dc * We now preserve the no-critical-edge pass (because we cannot insert critical edges) 
* Small modification to be more efficient


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5757 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-03-31 17:30:25 +00:00
Chris Lattner
c277eaa41e Move BreakCriticalEdges pass to lib/Transforms/Utils 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5754 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-03-21 21:43:19 +00:00
Chris Lattner
c8802d2c16 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5743 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-03-11 00:12:48 +00:00
Chris Lattner
a4f445b28c Implement: -A*-B == A*B 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5740 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-03-10 23:23:04 +00:00
Chris Lattner
a27231acc0 Add new transformation: // (~A | ~B) == (~(A & B)) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5738 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-03-10 23:13:59 +00:00
Chris Lattner
8d96964e29 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
}


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5736 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-03-10 23:06:50 +00:00
Chris Lattner
4f98c56936 Generalize (A+c1)+c2 optimization to work with all associative operators 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5733 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-03-10 21:43:22 +00:00
Chris Lattner
28ba1aad99 Minor change, no functionality diff 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5731 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-03-10 19:20:30 +00:00
Chris Lattner
ea34005404 Fix bug: (x << 100) wasn't folded to 0, but (x >> 100) was (when x is unsigned) 
Implement new shift optimizations for shifting the result of a shift.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5729 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-03-10 19:16:08 +00:00
Chris Lattner
cb40a3749a Implement: (A|B)^B == A & (~B) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5728 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-03-10 18:24:17 +00:00
Chris Lattner
3a43837d85 Fix bug: SimplifyCFG/2003-03-07-DominateProblem.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5722 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-03-07 18:13:41 +00:00
Chris Lattner
decd0812ec Implement %test7 in InstCombine/getelementptr.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5704 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-03-05 22:33:14 +00:00
Chris Lattner
46a5f1f6e4 Implement CFGSimplify/PhiBlockMerge*.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5702 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-03-05 21:36:33 +00:00
Chris Lattner
e2ca540e7c Implement testcase CFGSimplify/EqualPHIEdgeBlockMerge.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5699 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-03-05 21:01:52 +00:00