Andrew Trick 12d1ebe943 Enable SCEV-based unrolling by default. ... This changes loop unrolling to use the same mechanism for trip count computation as indvars. This is a stronger check that tends to unroll more loops. A very common side-effect is that many single iteration loops will be removed sooner. The real goal was simply to remove dependence on canonical IVs. x86 is break even. ARM performance changes to expect (+ is good): External/SPEC/CFP2000/183.equake/183.equake +13% SingleSource/Benchmarks/Dhrystone/fldry +21% MultiSource/Applications/spiff/spiff +3% SingleSource/Benchmarks/Stanford/Puzzle -14% The Puzzle regression is actually an improvement in loop optimization that defeats GVN: rdar://problem/10065079. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139009 91177308-0d34-0410-b5e6-96231b3b80d8		2011-09-02 17:26:28 +00:00
..
Analysis	After r138010, subroutine type does not have context info. Update type verifier accordingly.	2011-08-31 18:04:31 +00:00
Archive	Rewrite the CMake build to use explicit dependencies between libraries,	2011-07-29 00:14:25 +00:00
AsmParser	Auto upgrade the old EH scheme to use the new one. This is on a trial basis. If	2011-08-27 06:11:03 +00:00
Bitcode	Don't forget to add the landingpad and resume instructions to the InstructionList.	2011-09-01 00:50:20 +00:00
CodeGen	Revert r131152, r129796, r129761. This code is currently considered	2011-09-01 23:07:08 +00:00
CompilerDriver
ExecutionEngine	Move TargetRegistry and TargetSelect from Target to Support where they belong.	2011-08-24 18:08:43 +00:00
Linker	switch to the new struct api.	2011-08-12 18:07:26 +00:00
MC	Don't drop alignment info on local common symbols.	2011-09-01 23:04:27 +00:00
Object	Teach macho-dump to dump the uleb128s referred to by linkedit_data segments.	2011-08-30 22:10:58 +00:00
Support	Add AMDIL as valid target triple to LLVM.	2011-08-29 15:44:55 +00:00
Target	Pass signed (not unsigned) 10 bit field to SPU 'ori' instruction.	2011-09-02 10:05:01 +00:00
Transforms	Enable SCEV-based unrolling by default.	2011-09-02 17:26:28 +00:00
VMCore	Return undef value (instead of arbitrary) for wrong or undef index in	2011-09-02 17:01:40 +00:00
CMakeLists.txt
Makefile