MEGAPATCH checkin.

For details, See: docs/2002-06-25-MegaPatchInfo.txt

llvm-svn: 2778

llvm-svn: 2777

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llvm-svn: 2775

* Fix various bugs

llvm-svn: 2774

* Add two new checks:
  * PHI nodes must be the first thing in a basic block, all grouped together
  * All basic blocks should only end with terminator insts, not contain them

llvm-svn: 2773

system correctly.

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anymore.

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llvm-svn: 2763

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of their argument

llvm-svn: 2758

* The newly installed version of Bison now really likes there to be ;'s
  after productions.  Add them to avoid tons of warnings.

llvm-svn: 2757

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llvm-svn: 2755

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their references.  This fixes bug:
    test/Regression/Transforms/ADCE/2002-05-28-Crash*.ll

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llvm-svn: 2750

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   test/Regression/Transforms/FunctionResolve/retmismatch[12].ll

This makes it much more useful for running benchmarks that are missing
prototypes for some functions.

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for malloc and free.  Lots of crufty benchmarks are using stuff like:
char *malloc();
void free();

to forward declare malloc and free.  Now we recognize and raise these forms

llvm-svn: 2740

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llvm-svn: 2738