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cd5029d001
llvm-6502/include/llvm
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Sanjoy Das cd5029d001 [SCEV] Unify getUnsignedRange and getSignedRange 
Summary:
This removes some duplicated code, and also helps optimization: e.g. in
the test case added, `%idx ULT 128` in `@x` is not currently optimized
to `true` by `-indvars` but will be, after this change.

The only functional change in ths commit is that for add recurrences,
ScalarEvolution::getRange will be more aggressive -- computing the
unsigned (resp. signed) range for a SCEVAddRecExpr will now look at the
NSW (resp. NUW) bits and check for signed (resp. unsigned) overflow.
This can be a strict improvement in some cases (such as the attached
test case), and should be no worse in other cases.

Reviewers: atrick, nlewycky

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D8142

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231709 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-09 21:43:43 +00:00
..
ADT Add support for Nuxi CloudABI. 2015-03-09 18:40:45 +00:00
Analysis [SCEV] Unify getUnsignedRange and getSignedRange 2015-03-09 21:43:43 +00:00
AsmParser Pass a MemoryBufferRef when we can avoid taking ownership. 2014-08-26 21:49:01 +00:00
Bitcode [opaque pointer type] Bitcode support for explicit type parameter on GEP. 2015-02-25 01:08:52 +00:00
CodeGen [DAGCombiner] Add a shuffle mask commutation helper function. NFCI. 2015-03-07 22:33:11 +00:00
Config Drop the hacks used for partial C99 math libraries. 2015-03-09 18:35:18 +00:00
DebugInfo Typo. 2015-03-07 01:39:09 +00:00
ExecutionEngine Fold init() helpers into constructors. NFC. 2015-03-06 16:21:15 +00:00
IR InstCombine: fix fold "fcmp x, undef" to account for NaN 2015-03-09 03:20:25 +00:00
IRReader Pass a MemoryBufferRef when we can avoid taking ownership. 2014-08-26 21:49:01 +00:00
LineEditor [C++11] Replace OwningPtr with std::unique_ptr in places where it doesn't break the API. 2014-04-21 09:34:48 +00:00
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 Delete dead code. NFC. 2015-03-09 18:48:29 +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
Passes [PM] Create a separate library for high-level pass management code. 2015-03-07 09:02:36 +00:00
ProfileData Add another missing header that used to be included transitively. 2015-03-02 01:08:07 +00:00
Support Remove the remaining uses of abs64 and nuke it. 2015-03-09 20:20:16 +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 DAGCombiner: Canonicalize select(and/or,x,y) depending on target. 2015-03-06 19:49:10 +00:00
Transforms Add a new pass "Loop Interchange" 2015-03-06 10:11:25 +00:00
CMakeLists.txt Remove llvm_headers_do_not_build for the benefit of XCode and Visual Studio users. 2014-08-14 00:51:47 +00:00
InitializePasses.h Add a new pass "Loop Interchange" 2015-03-06 10:11:25 +00:00
LinkAllIR.h [cleanup] Move the Dominators.h and Verifier.h headers into the IR 2014-01-13 09:26:24 +00:00
LinkAllPasses.h Add a new pass "Loop Interchange" 2015-03-06 10:11:25 +00:00
module.modulemap [modules] Mark Analysis/TargetLibraryInfo.def as a textual header. 2015-03-06 23:39:54 +00:00
module.modulemap.build [modules] Add module maps for LLVM. These are not quite ready for prime-time 2014-05-21 02:46:14 +00:00
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 Defining a new API for debug options that doesn't rely on static global cl::opts. 2014-10-15 21:54:35 +00:00