llvm-6502/lib
Dan Gohman a10756ee65 Re-implement the main strength-reduction portion of LoopStrengthReduction.
This new version is much more aggressive about doing "full" reduction in
cases where it reduces register pressure, and also more aggressive about
rewriting induction variables to count down (or up) to zero when doing so
reduces register pressure.

It currently uses fairly simplistic algorithms for finding reuse
opportunities, but it introduces a new framework allows it to combine
multiple strategies at once to form hybrid solutions, instead of doing
all full-reduction or all base+index.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94061 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-21 02:09:26 +00:00
..
Analysis Re-implement the main strength-reduction portion of LoopStrengthReduction. 2010-01-21 02:09:26 +00:00
Archive Prune #includes from llvm/Linker.h and llvm/System/Path.h, 2009-08-23 22:45:37 +00:00
AsmParser Remove the InlineHint attribute. There are no current or planned 2010-01-15 21:36:30 +00:00
Bitcode Simplify code that chooses when to enumerate function-local metadata operands 2010-01-14 19:54:11 +00:00
CodeGen Make sure that landing pad entries in the EH call site table are in the proper 2010-01-21 00:43:30 +00:00
CompilerDriver Make Path use StringRef instead of std::string where possible. 2009-12-17 21:02:39 +00:00
ExecutionEngine Avoid including DebugInfo.h in AsmPrinter.h 2010-01-19 06:09:04 +00:00
Linker Fixed linking of modules containing aliases to constant bitcasts. Existing behaviour first tried to replace the aliases with the global that they aliased (rather than the bitcast), causing a crash on an assert because the types didn't match. When this was fixed, it then did the same thing creating the new alias (creating an alias with a different type to its aliasee). 2010-01-09 16:27:31 +00:00
MC don't forget to initialize an instance variable! 2010-01-20 20:48:59 +00:00
Support Fix an infinite recursion problem. dbgs() should return errs() in 2010-01-20 15:27:19 +00:00
System Stubs for getHostCPUFeatures API. This implements part of PR5389. 2010-01-19 21:26:05 +00:00
Target Re-implement the main strength-reduction portion of LoopStrengthReduction. 2010-01-21 02:09:26 +00:00
Transforms Re-implement the main strength-reduction portion of LoopStrengthReduction. 2010-01-21 02:09:26 +00:00
VMCore Backout r93990 2010-01-20 07:37:49 +00:00
Makefile remove llvm-db: it is completely broken and if anyone wants to do a debugger, 2009-10-05 02:29:51 +00:00