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Dan Gohman 4f8eea82d8 Generalize target-independent folding rules for sizeof to handle more 
cases, and implement target-independent folding rules for alignof and
offsetof. Also, reassociate reassociative operators when it leads to
more folding.

Generalize ScalarEvolution's isOffsetOf to recognize offsetof on
arrays. Rename getAllocSizeExpr to getSizeOfExpr, and getFieldOffsetExpr
to getOffsetOfExpr, for consistency with analagous ConstantExpr routines.

Make the target-dependent folder promote GEP array indices to
pointer-sized integers, to make implicit casting explicit and exposed
to subsequent folding.

And add a bunch of testcases for this new functionality, and a bunch
of related existing functionality.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94987 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-01 18:27:38 +00:00
..
ADT Add an immutable interval map, prepared to be used by flat memory model 2010-02-01 10:43:31 +00:00
Analysis Generalize target-independent folding rules for sizeof to handle more 2010-02-01 18:27:38 +00:00
Assembly
Bitcode Kill ModuleProvider and ghost linkage by inverting the relationship between 2010-01-27 20:34:15 +00:00
CodeGen Assign the ordering of SDNodes in a much less intrusive fashion. After the 2010-01-28 21:51:40 +00:00
CompilerDriver
Config Regenerate configure. 2010-01-26 08:50:50 +00:00
ExecutionEngine Kill ModuleProvider and ghost linkage by inverting the relationship between 2010-01-27 20:34:15 +00:00
MC Eliminate SetDirective, and replace it with HasSetDirective. 2010-01-26 20:40:54 +00:00
Support Rename two IRReader.h functions to indicate that they return a Module 2010-01-29 21:11:04 +00:00
System Add llvm::Program::ChangeStderrToBinary(). 2010-01-28 06:42:08 +00:00
Target Moved InstallLexer() from the X86-specific AsmLexer 2010-01-31 02:28:18 +00:00
Transforms Check alignment of loads when deciding whether it is safe to execute them 2010-01-30 04:42:39 +00:00
AbstractTypeUser.h
Argument.h sink twine.h down out of Value.h. It is annoying that you need 2009-12-29 07:12:03 +00:00
Attributes.h Remove the InlineHint attribute. There are no current or planned 2010-01-15 21:36:30 +00:00
AutoUpgrade.h
BasicBlock.h sink twine.h down out of Value.h. It is annoying that you need 2009-12-29 07:12:03 +00:00
CallGraphSCCPass.h elimiante the dynamic_cast's from opt. 2010-01-22 06:03:06 +00:00
CallingConv.h
CMakeLists.txt
Constant.h
Constants.h Add a getNUWMul function. 2010-02-01 16:38:14 +00:00
DerivedTypes.h
Function.h back this out for now. Growing Function is not good. 2010-01-21 20:10:22 +00:00
GlobalAlias.h sink twine.h down out of Value.h. It is annoying that you need 2009-12-29 07:12:03 +00:00
GlobalValue.h Kill ModuleProvider and ghost linkage by inverting the relationship between 2010-01-27 20:34:15 +00:00
GlobalVariable.h sink twine.h down out of Value.h. It is annoying that you need 2009-12-29 07:12:03 +00:00
GVMaterializer.h Kill ModuleProvider and ghost linkage by inverting the relationship between 2010-01-27 20:34:15 +00:00
InlineAsm.h
InstrTypes.h add an out-of-line virtual method to CmpInst to give it a home. 2010-01-22 06:25:37 +00:00
Instruction.def
Instruction.h Final step in the metadata API restructuring: move the 2009-12-29 09:01:33 +00:00
Instructions.h
IntrinsicInst.h Improve llvm.dbg.declare intrinsic by referring directly to the storage in its first argument, via function-local metadata (instead of via a bitcast). 2010-01-15 19:04:09 +00:00
Intrinsics.h
Intrinsics.td Update of 94055 to track the IR level call site information via an intrinsic. 2010-01-28 01:45:32 +00:00
IntrinsicsAlpha.td
IntrinsicsARM.td
IntrinsicsCellSPU.td
IntrinsicsPowerPC.td
IntrinsicsX86.td Revert r92939. These intrinsics get matched to LLVM instructions, 2010-01-07 21:43:58 +00:00
IntrinsicsXCore.td
LinkAllPasses.h remove the random sampling framework, which is not maintained anymore. 2010-01-02 20:07:03 +00:00
LinkAllVMCore.h fix a warning. 2010-01-16 21:55:24 +00:00
Linker.h
LLVMContext.h Final step in the metadata API restructuring: move the 2009-12-29 09:01:33 +00:00
Metadata.h Add MDNode::getIfExists(), an efficient way to determine if a value is used by metadata (since metadata does not appear in a value's use list) 2010-01-26 02:36:35 +00:00
Module.h Kill ModuleProvider and ghost linkage by inverting the relationship between 2010-01-27 20:34:15 +00:00
OperandTraits.h
Operator.h
Pass.h elimiante the dynamic_cast's from opt. 2010-01-22 06:03:06 +00:00
PassAnalysisSupport.h eliminate dynamic_cast from the pass manager. 2010-01-21 02:07:07 +00:00
PassManager.h Kill ModuleProvider and ghost linkage by inverting the relationship between 2010-01-27 20:34:15 +00:00
PassManagers.h eliminate a bunch of dynamic_cast's. 2010-01-22 05:24:46 +00:00
PassSupport.h add a helper method. 2010-01-20 19:25:45 +00:00
SymbolTableListTraits.h
Type.h Add a new predicate for integer type equality tests. 2010-01-05 20:04:48 +00:00
TypeSymbolTable.h
Use.h
User.h
Value.h Change Value::getUnderlyingObject to have the MaxLookup value specified as a 2010-01-25 18:26:54 +00:00
ValueSymbolTable.h Before existing NamedMDNode entry in the symbol table, remove any existing entry with the same name. 2010-01-26 22:03:41 +00:00