llvm-6502/test
Sanjoy Das de87c9165a Teach ScalarEvolution to sharpen range information.
If x is known to have the range [a, b), in a loop predicated by (icmp
ne x, a) its range can be sharpened to [a + 1, b).  Get
ScalarEvolution and hence IndVars to exploit this fact.

This change triggers an optimization to widen-loop-comp.ll, so it had
to be edited to get it to pass.

This change was originally landed in r219834 but had a bug and broke
ASan. It was reverted in r219878, and is now being re-landed after
fixing the original bug.

phabricator: http://reviews.llvm.org/D5639
reviewed by: atrick



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221839 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-13 00:00:58 +00:00
..
Analysis
Assembler
Bindings
Bitcode
BugPoint
CodeGen Expose the number of Newton-Raphson iterations applied to the hardware's reciprocal estimate as a parameter (x86). 2014-11-12 21:39:01 +00:00
DebugInfo Fix emission of Dwarf accelerator table when there are multiple CUs. 2014-11-12 23:48:14 +00:00
ExecutionEngine
Feature
FileCheck
Instrumentation Move asan-coverage into a separate phase. 2014-11-11 22:14:37 +00:00
Integer
JitListener
Linker
LTO Add Forward Control-Flow Integrity. 2014-11-11 21:08:02 +00:00
MC [mips] Add hardware register name "hwr_ulr" ($29) 2014-11-11 11:22:39 +00:00
Object Object, support both mach-o archive t.o.c file names 2014-11-12 01:37:45 +00:00
Other
SymbolRewriter
TableGen
tools [COFF] Make it clearer that the symbols subsection holds function display name rather than just name 2014-11-12 20:10:09 +00:00
Transforms Teach ScalarEvolution to sharpen range information. 2014-11-13 00:00:58 +00:00
Unit
Verifier
YAMLParser
.clang-format
CMakeLists.txt
lit.cfg
lit.site.cfg.in
Makefile
Makefile.tests
TestRunner.sh