Chris Lattner
5f73e38548
Big programs have tons of global variable initializers, and most passes don't care
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about them. Try to delete them if it doesn't affect the passes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5918 91177308-0d34-0410-b5e6-96231b3b80d8
2003-04-25 00:53:05 +00:00
Chris Lattner
286921e8d2
Speed up convergence significantly and also reduce the size of testcases by making large portions of a function's CFG dead at a time.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5915 91177308-0d34-0410-b5e6-96231b3b80d8
2003-04-24 23:51:38 +00:00
Chris Lattner
f607b79bc7
The big fix is this change:
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- if (I->isExternal() && !Functions.count(I))
+ if (!I->isExternal() && !Functions.count(I))
We were not actually deleting any functions from the module!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5914 91177308-0d34-0410-b5e6-96231b3b80d8
2003-04-24 22:54:06 +00:00
Chris Lattner
aae33f9137
Use the list reducer to improve convergence speed and to support crashes that
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only occur when multiple passes interact or when multiple functions exist in a module
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5911 91177308-0d34-0410-b5e6-96231b3b80d8
2003-04-24 22:24:58 +00:00
Chris Lattner
640f22e66d
Implement support for bugpoint to identify which FUNCTION an optimization
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is miscompiling.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5893 91177308-0d34-0410-b5e6-96231b3b80d8
2003-04-24 17:02:17 +00:00
Chris Lattner
ba386d943f
* Reduce the number of useless bytecode files produced by bugpoint.
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- This also speeds it up as the bytecode writer isn't terribly fast.
* Add a new cleanup pass after everything else to run -funcresolve -globaldce
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5668 91177308-0d34-0410-b5e6-96231b3b80d8
2003-02-28 16:13:20 +00:00
Chris Lattner
6520785dcd
Make bugpoint *much* more powerful, giving it the capability to delete instructions
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out of a large function to reduce it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5408 91177308-0d34-0410-b5e6-96231b3b80d8
2003-01-23 02:48:33 +00:00
Chris Lattner
218e26ef35
Implement the start of the miscompilation detection stuff
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5119 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-23 23:49:59 +00:00
Chris Lattner
afade9294a
Initial checkin of bugpoint
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4789 91177308-0d34-0410-b5e6-96231b3b80d8
2002-11-20 22:28:10 +00:00
