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Commit Graph

753 Commits

Author SHA1 Message Date
Chris Lattner
6cb27840a7 Fix bug: LoopPreheaders/2003-05-12-PreheaderExitOfChild.ll
llvm-svn: 6153
2003-05-12 22:04:34 +00:00
Chris Lattner
a7ee27e0fd Handle va_arg instruction correctly
llvm-svn: 6030
2003-05-08 02:50:13 +00:00
Chris Lattner
f1f55e385c Don't inline functions that take variable numbers of arguments!
llvm-svn: 6024
2003-05-08 02:36:43 +00:00
Chris Lattner
d381dc9316 Remove using decl
llvm-svn: 6023
2003-05-08 02:34:52 +00:00
Chris Lattner
984bb45d4a Attempt to fix sumant's typesafety issue
llvm-svn: 5984
2003-05-02 19:32:04 +00:00
Chris Lattner
e006ca4580 Fix spelling
llvm-svn: 5983
2003-05-02 19:26:34 +00:00
Chris Lattner
f13fe891d1 Fix Bug: LowerSwitch/2003-05-01-PHIProblem.ll
llvm-svn: 5979
2003-05-01 22:21:21 +00:00
Chris Lattner
c2eb77b84f Fix bug: LevelRaise/2003-05-01-CallCast.ll
llvm-svn: 5975
2003-05-01 21:02:53 +00:00
Chris Lattner
5045ab0fac Fix another case where constexprs could cause a crash
llvm-svn: 5972
2003-04-30 22:34:06 +00:00
Chris Lattner
caa766b40f Fix constant folding of constexprs
llvm-svn: 5971
2003-04-30 22:19:10 +00:00
Chris Lattner
a1250081cc Create constant expression casts instead of constant instructions if possible
llvm-svn: 5968
2003-04-28 01:25:38 +00:00
Chris Lattner
b74f4c1462 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
7e9f0ea3fd Avoid naming things exactly the same
llvm-svn: 5966
2003-04-27 22:55:56 +00:00
Chris Lattner
d2960ee802 Fix bug: ADCE/2003-04-25-PHIPostDominateProblem.ll
llvm-svn: 5952
2003-04-25 22:53:27 +00:00
Chris Lattner
c78cd5c758 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
7b67a6e77d 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
e1c995e9b6 Fix bug: mem2reg/2003-04-24-MultipleIdenticalSuccessors.ll
llvm-svn: 5919
2003-04-25 00:54:58 +00:00
Chris Lattner
3dbf3f0ac1 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
043b4a7621 Fix iterator invalidation problem
llvm-svn: 5895
2003-04-24 17:52:20 +00:00
Chris Lattner
f0c01a508b 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
868b3316c9 Make sure to preserve endiannes and pointer size when cloning modules!
llvm-svn: 5892
2003-04-24 15:54:40 +00:00
Chris Lattner
b6050c264d Fix Bug: Linker/2003-04-23-LinkOnceLost.ll
llvm-svn: 5879
2003-04-23 18:38:39 +00:00
Chris Lattner
db6b7ba364 Remove unnecesary &*'s
llvm-svn: 5872
2003-04-23 16:37:45 +00:00
Chris Lattner
a9eaa10358 New pass to lower switch instructions to branch instructions
llvm-svn: 5865
2003-04-23 16:23:59 +00:00
Chris Lattner
d609c99c87 Minor cleanups
llvm-svn: 5863
2003-04-23 16:18:14 +00:00
Chris Lattner
69b54208f4 Add warning when linking modules with disagreeing target properties
llvm-svn: 5845
2003-04-22 19:13:20 +00:00
Chris Lattner
ce0beca3fc Preserve the new moduleID field
llvm-svn: 5835
2003-04-22 18:02:26 +00:00
Chris Lattner
21967df20a Fix bug: 2003-01-30-LinkerRename.ll
llvm-svn: 5828
2003-04-21 21:15:04 +00:00
Chris Lattner
6da72fd92a 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
a489b529fe Fix bug where use still existed in dead code
llvm-svn: 5824
2003-04-21 19:15:26 +00:00
Chris Lattner
5931df28b7 Implement: FunctionResolve/2003-04-18-ForwardDeclGlobal.ll
llvm-svn: 5816
2003-04-19 00:15:27 +00:00
Chris Lattner
61d704329e Fix bug: Mem2reg/2003-04-18-DeadBlockProblem.ll
llvm-svn: 5810
2003-04-18 19:25:22 +00:00
Chris Lattner
08b5392e07 Global constants CAN be external
llvm-svn: 5808
2003-04-18 04:34:29 +00:00
Chris Lattner
f171f30deb Refactor CloneFunction to expose the new CloneBasicBlock function
llvm-svn: 5806
2003-04-18 03:50:09 +00:00
Chris Lattner
5403f79db0 New const_cast instead of c style cast
llvm-svn: 5805
2003-04-18 03:49:49 +00:00
Chris Lattner
bb00f755ed Change the interface to constant expressions to allow automatic folding
llvm-svn: 5793
2003-04-16 22:40:51 +00:00
Chris Lattner
fa4f750f3e Add new linkage types to support a real frontend
llvm-svn: 5786
2003-04-16 20:28:45 +00:00
Chris Lattner
fc93e77390 Make help message more clear
llvm-svn: 5775
2003-04-13 03:50:14 +00:00
Chris Lattner
0ac391e6c8 * 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
731913bab3 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
44370a85d9 * 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
b215db890f Move BreakCriticalEdges pass to lib/Transforms/Utils
llvm-svn: 5754
2003-03-21 21:43:19 +00:00
Chris Lattner
c51d7871ee 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
6eededc41f Implement: -A*-B == A*B
llvm-svn: 5740
2003-03-10 23:23:04 +00:00
Chris Lattner
715b592fc4 Add new transformation: // (~A | ~B) == (~(A & B))
llvm-svn: 5738
2003-03-10 23:13:59 +00:00
Chris Lattner
0f5ab645eb 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
3eca9aaa0a Generalize (A+c1)+c2 optimization to work with all associative operators
llvm-svn: 5733
2003-03-10 21:43:22 +00:00
Chris Lattner
9dec4368c0 Minor change, no functionality diff
llvm-svn: 5731
2003-03-10 19:20:30 +00:00
Chris Lattner
5fbfe9b9a8 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.

llvm-svn: 5729
2003-03-10 19:16:08 +00:00
Chris Lattner
5e6fb8b8d5 Implement: (A|B)^B == A & (~B)
llvm-svn: 5728
2003-03-10 18:24:17 +00:00