llvm/lib
Andrew Trick ab0d042a74 Fix and improve SCEV ComputeBackedgeTankCount.
This is a follow-up to r209358: PR19799: Indvars miscompile due to an
incorrect max backedge taken count from SCEV.

That fix was incomplete as pointed out by Arnold and Michael Z. The
code was also too confusing. It needed a careful rewrite with more
unit tests. This version will also happen to optimize more cases.

<rdar://17005101> PR19799: Indvars miscompile...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209545 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-23 19:47:13 +00:00
..
Analysis Fix and improve SCEV ComputeBackedgeTankCount. 2014-05-23 19:47:13 +00:00
AsmParser [modules] Add module maps for LLVM. These are not quite ready for prime-time 2014-05-21 02:46:14 +00:00
Bitcode [modules] Add module maps for LLVM. These are not quite ready for prime-time 2014-05-21 02:46:14 +00:00
CodeGen Add FIXME comment based on code review feedback by Hal Finkel on r209338 2014-05-23 16:53:14 +00:00
DebugInfo [modules] Add module maps for LLVM. These are not quite ready for prime-time 2014-05-21 02:46:14 +00:00
ExecutionEngine [RuntimeDyld] Remove relocation bounds check introduced in r208375 (MachO only). 2014-05-23 18:35:44 +00:00
IR Remove LLVMContextImpl::optimizationRemarkEnabledFor. 2014-05-22 17:19:01 +00:00
IRReader [C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr. 2014-04-15 06:32:26 +00:00
LineEditor [CMake] Use LINK_LIBS instead of target_link_libraries(). 2014-02-26 06:41:29 +00:00
Linker Use create methods since msvc doesn't handle delegating constructors. 2014-05-17 21:29:57 +00:00
LTO Aliases are always definition, delete dead code. 2014-05-23 15:18:06 +00:00
MC MC: initialise MCAsmParser variable 2014-05-22 06:02:59 +00:00
Object [YAML] Add an optional argument EnumMask to the yaml::IO::bitSetCase(). 2014-05-23 08:07:09 +00:00
Option Options: Use erase_if to remove Args from the list. 2014-05-18 15:14:13 +00:00
ProfileData ProfileData: Allow multiple profiles in RawInstrProfReader 2014-05-16 00:38:00 +00:00
Support Fixup sys::getHostCPUFeatures crypto names so it doesn't clash with kernel headers 2014-05-23 10:14:13 +00:00
TableGen [modules] Add module maps for LLVM. These are not quite ready for prime-time 2014-05-21 02:46:14 +00:00
Target Use alias linkage and visibility to decide tls access mode. 2014-05-23 19:16:56 +00:00
Transforms Add the extracted constant offset using GEP 2014-05-23 18:39:40 +00:00
CMakeLists.txt ProfileData: Introduce the InstrProfReader interface and a text reader 2014-03-21 17:24:48 +00:00
LLVMBuild.txt ProfileData: Introduce the InstrProfReader interface and a text reader 2014-03-21 17:24:48 +00:00
Makefile ProfileData: Introduce the InstrProfReader interface and a text reader 2014-03-21 17:24:48 +00:00