llvm-6502/lib/Transforms
Hal Finkel a739834446 Allow isDereferenceablePointer to look through some bitcasts
isDereferenceablePointer should not give up upon encountering any bitcast. If
we're casting from a pointer to a larger type to a pointer to a small type, we
can continue by examining the bitcast's operand. This missing capability
was noted in a comment in the function.

In order for this to work, isDereferenceablePointer now takes an optional
DataLayout pointer (essentially all callers already had such a pointer
available). Most code uses isDereferenceablePointer though
isSafeToSpeculativelyExecute (which already took an optional DataLayout
pointer), and to enable the LICM test case, LICM needs to actually provide its DL
pointer to isSafeToSpeculativelyExecute (which it was not doing previously).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212686 91177308-0d34-0410-b5e6-96231b3b80d8
2014-07-10 05:27:53 +00:00
..
Hello
InstCombine Fix for PR20059 (instcombine reorders shufflevector after instruction that may trap) 2014-07-09 16:34:54 +00:00
Instrumentation [dfsan] Handle bitcast aliases. 2014-07-10 01:30:39 +00:00
IPO Allow isDereferenceablePointer to look through some bitcasts 2014-07-10 05:27:53 +00:00
ObjCARC Revert "Introduce a string_ostream string builder facilty" 2014-06-26 22:52:05 +00:00
Scalar Allow isDereferenceablePointer to look through some bitcasts 2014-07-10 05:27:53 +00:00
Utils Decouple llvm::SpecialCaseList text representation and its LLVM IR semantics. 2014-07-09 19:40:08 +00:00
Vectorize Revert "Introduce a string_ostream string builder facilty" 2014-06-26 22:52:05 +00:00
CMakeLists.txt
LLVMBuild.txt
Makefile