llvm-6502/lib
Sanjoy Das 48fcc07856 Make ScalarEvolution less aggressive with respect to no-wrap flags.
ScalarEvolution currently lowers a subtraction recurrence to an add
recurrence with the same no-wrap flags as the subtraction.  This is
incorrect because `sub nsw X, Y` is not the same as `add nsw X, -Y`
and `sub nuw X, Y` is not the same as `add nuw X, -Y`.  This patch
fixes the issue, and adds two test cases demonstrating the bug.

Differential Revision: http://reviews.llvm.org/D7081



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226755 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-22 00:48:47 +00:00
..
Analysis Make ScalarEvolution less aggressive with respect to no-wrap flags. 2015-01-22 00:48:47 +00:00
AsmParser AsmParser: PARSE_MD_FIELD() => ParseMDField(), NFC 2015-01-20 02:42:29 +00:00
Bitcode Bitcode: Don't create comdats when autoupgrading macho bitcode 2015-01-20 05:58:07 +00:00
CodeGen Make DwarfExpression use the new DIExpressionIterator. NFC. 2015-01-22 00:00:59 +00:00
DebugInfo [cleanup] Re-sort all the #include lines in LLVM using 2015-01-14 11:23:27 +00:00
ExecutionEngine [RuntimeDyld] Tidy up emitCommonSymbols a little. NFC. 2015-01-17 00:55:05 +00:00
IR Rewrite DIExpression::Verify() using an iterator. NFC. 2015-01-22 00:00:52 +00:00
IRReader Remove unused variable. NFC. 2014-11-06 23:16:57 +00:00
LineEditor
Linker [llvm link] Destroy ConstantArrays in LLVMContext if they are not used. 2015-01-20 19:24:59 +00:00
LTO [PM] Separate the InstCombiner from its pass. 2015-01-20 22:44:35 +00:00
MC Add r224985 back with fixes. 2015-01-19 21:11:14 +00:00
Object Fix the Archive::Child::getRawSize() method used by llvm-objdump’s -archive-headers option 2015-01-16 22:10:36 +00:00
Option [cleanup] Re-sort all the #include lines in LLVM using 2015-01-14 11:23:27 +00:00
ProfileData Replace size method call of containers to empty method where appropriate 2015-01-15 11:41:30 +00:00
Support Adding a new cl::HideUnrelatedOptions API to allow clang to migrate off cl::getRegisteredOptions. 2015-01-21 22:45:52 +00:00
TableGen Replace size method call of containers to empty method where appropriate 2015-01-15 11:41:30 +00:00
Target [X86][SSE] Missing SSE/AVX1 memory folding integer instructions 2015-01-21 23:43:30 +00:00
Transforms [canonicalization] Refactor how we create new stores into a helper 2015-01-21 23:45:01 +00:00
CMakeLists.txt
LLVMBuild.txt
Makefile