Chris Lattner 4cb81bdd56 instcombine transforms vector loads that are only used by ... extractelement operations into a bitcast of the pointer, then a gep, then a scalar load. Disable this when the vector only has one element, because it leads to infinite loops in instcombine (PR4908). This transformation seems like a really bad idea to me, as it will likely disable CSE of vector load/stores etc and can be better done in the code generator when profitable. This goes all the way back to the first days of packed types, r25299 specifically. I'll let those people who care about the performance of vector code decide what to do with this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81185 91177308-0d34-0410-b5e6-96231b3b80d8		2009-09-08 03:44:51 +00:00
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Analysis	fix ComputeMaskedBits handling of zext/sext/trunc to work with vectors.	2009-09-08 00:13:52 +00:00
Archive	Prune #includes from llvm/Linker.h and llvm/System/Path.h,	2009-08-23 22:45:37 +00:00
AsmParser	Reappy r80998, now that the GlobalOpt bug that it exposed on MiniSAT is fixed.	2009-09-07 23:54:19 +00:00
Bitcode	Reappy r80998, now that the GlobalOpt bug that it exposed on MiniSAT is fixed.	2009-09-07 23:54:19 +00:00
CodeGen	Fix an abort on a store of an empty struct member. getValue returns	2009-09-08 01:44:02 +00:00
CompilerDriver	convert LoopInfo.h and GraphWriter.h to use raw_ostream	2009-08-23 07:19:13 +00:00
Debugger	Prune #includes from llvm/Linker.h and llvm/System/Path.h,	2009-08-23 22:45:37 +00:00
ExecutionEngine	Fix PR4845: r77946 completely broke x86_64 Darwin (or any situation where the	2009-09-02 00:19:03 +00:00
Linker	There is not any need to copy metadata while merging modules.	2009-09-03 20:35:57 +00:00
MC	fix MCSymbol printing to exactly match the normal mangler rules so	2009-09-03 05:57:47 +00:00
Support	Avoid warnings if assertions are off.	2009-09-06 19:28:38 +00:00
System	Using a signal handler that does nothing should be	2009-09-07 05:58:25 +00:00
Target	Do not create calls via PLT in compilation callback - this is higly platform	2009-09-06 20:21:48 +00:00
Transforms	instcombine transforms vector loads that are only used by	2009-09-08 03:44:51 +00:00
VMCore	Simplify from my last change. Assert1 is a macro that makes its caller return,	2009-09-08 02:02:39 +00:00
Makefile	LLVMC doesn't need ENABLE_PIC to build now.	2009-07-04 03:54:54 +00:00