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4e022da51e
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James Molloy 4e022da51e [ConstantRange] Teach multiply to be cleverer about signed ranges. 
Multiplication is not dependent on signedness, so just treating
all input ranges as unsigned is not incorrect. However it will cause
overly pessimistic ranges (such as full-set) when used with signed
negative values.

Teach multiply to try to interpret its inputs as both signed and
unsigned, and then to take the most specific (smallest population)
as its result.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231483 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-06 15:50:47 +00:00
..
ADT Revert "[ADT] fail-fast iterators for DenseMap" 2015-03-04 06:05:37 +00:00
Analysis Reformat. 2015-03-05 01:25:19 +00:00
AsmParser
Bitcode [opaque pointer type] Bitcode support for explicit type parameter on GEP. 2015-02-25 01:08:52 +00:00
CodeGen [AsmPrinter][TLOF] 32-bit MachO support for replacing GOT equivalents 2015-03-06 13:49:05 +00:00
Config [Support/Timer] Make GetMallocUsage() aware of jemalloc. 2015-02-19 07:27:14 +00:00
DebugInfo DWARFFormValue: Add getAsSignedConstant method. 2015-03-04 22:07:41 +00:00
ExecutionEngine Make DataLayout Non-Optional in the Module 2015-03-04 18:43:29 +00:00
IR [ConstantRange] Teach multiply to be cleverer about signed ranges. 2015-03-06 15:50:47 +00:00
IRReader
LineEditor
Linker Remember to move a type to the correct set when setting the body. 2015-03-06 00:50:21 +00:00
LTO [LTO API] fix memory leakage introduced at r230290. 2015-02-25 21:20:53 +00:00
MC Use the generic Lfunc_begin label on ppc. 2015-03-05 18:55:50 +00:00
Object Object: Add range iterators to Archive symbols 2015-03-04 02:05:06 +00:00
Option Remove explicit no-op dtor in favor of the implicit dtor so as not to disable/deprecate the copy operations. 2015-03-03 19:53:02 +00:00
ProfileData Add another missing header that used to be included transitively. 2015-03-02 01:08:07 +00:00
Support Replace PrintStackTrace(FILE*) with PrintStackTrace(raw_ostream&) 2015-03-05 19:10:52 +00:00
TableGen Removing LLVM_DELETED_FUNCTION, as MSVC 2012 was the last reason for requiring the macro. NFC; LLVM edition. 2015-02-15 22:54:22 +00:00
Target [AsmPrinter][TLOF] 32-bit MachO support for replacing GOT equivalents 2015-03-06 13:49:05 +00:00
Transforms Add a new pass "Loop Interchange" 2015-03-06 10:11:25 +00:00
CMakeLists.txt
InitializePasses.h Add a new pass "Loop Interchange" 2015-03-06 10:11:25 +00:00
LinkAllIR.h
LinkAllPasses.h Add a new pass "Loop Interchange" 2015-03-06 10:11:25 +00:00
module.modulemap [modules] Add include/llvm/IR/DebugInfoFlags.def to the textual headers list. 2015-02-25 01:44:09 +00:00
module.modulemap.build
Pass.h Removing LLVM_DELETED_FUNCTION, as MSVC 2012 was the last reason for requiring the macro. NFC; LLVM edition. 2015-02-15 22:54:22 +00:00
PassAnalysisSupport.h Removing LLVM_DELETED_FUNCTION, as MSVC 2012 was the last reason for requiring the macro. NFC; LLVM edition. 2015-02-15 22:54:22 +00:00
PassInfo.h Removing LLVM_DELETED_FUNCTION, as MSVC 2012 was the last reason for requiring the macro. NFC; LLVM edition. 2015-02-15 22:54:22 +00:00
PassRegistry.h Revert r231276 (including r231277): Add a lock() function in PassRegistry to speed up multi-thread synchronization. 2015-03-05 17:53:00 +00:00
PassSupport.h