Benjamin Kramer 19ea37059a SCEV: Make the final add of an inbounds GEP nuw if we know that the index is positive. ... We can't do this for the general case as saying a GEP with a negative index doesn't have unsigned wrap isn't valid for negative indices. %gep = getelementptr inbounds i32* %p, i64 -1 But an inbounds GEP cannot run past the end of address space. So we check for the very common case of a positive index and make GEPs derived from that NUW. Together with Andy's recent non-unit stride work this lets us analyze loops like void foo3(int *a, int *b) { for (; a < b; a++) {} } PR12375, PR12376. Differential Revision: http://llvm-reviews.chandlerc.com/D2033 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193514 91177308-0d34-0410-b5e6-96231b3b80d8		2013-10-28 07:30:06 +00:00
..
Analysis	SCEV: Make the final add of an inbounds GEP nuw if we know that the index is positive.	2013-10-28 07:30:06 +00:00
Assembler	Change objectsize intrinsic to accept different address spaces.	2013-10-07 18:06:48 +00:00
Bindings	Fix check for supported targets in llvm-c lit.local.cfg	2013-10-23 08:47:52 +00:00
Bitcode
BugPoint
CodeGen	Make first substantial checkin of my port of ARM constant islands code to Mips.	2013-10-27 21:57:36 +00:00
DebugInfo	DebugInfo: Hash DW_FORM_GNU_str_index as a string.	2013-10-21 16:37:22 +00:00
ExecutionEngine	MCJIT-remote: __main should be resolved in child context.	2013-10-27 10:22:52 +00:00
Feature
FileCheck	Really fix CHECK-LABEL and CHECK-DAG interaction. This actually just restores the initial implementation that was in r186162 but got lost in some subsequent refactoring. More explicit variable names and comments are present now to hopefully prevent repeat regression, as well as another test.	2013-10-11 18:38:36 +00:00
Instrumentation	fix PR17635: false positive with packed structures	2013-10-24 09:17:24 +00:00
Integer
JitListener
Linker
LTO	Optimize more linkonce_odr values during LTO.	2013-10-21 17:14:55 +00:00
MC	ARM: allow .thumb_func to be separated from symbol definition	2013-10-25 12:49:50 +00:00
Object	Create an atom with just the data that failed to disassemble.	2013-10-16 19:03:14 +00:00
Other	llvm/test/Other/close-stderr.ll: Remove "XFAIL:win32". It reverts r173509.	2013-10-26 02:50:14 +00:00
TableGen
tools	[Mips] Teach llvm-readobj to print MIPS-specific ELF program headers.	2013-10-07 08:58:27 +00:00
Transforms	Revert r193251 : Use address-taken to disambiguate global variable and indirect memops.	2013-10-27 03:08:44 +00:00
Unit
Verifier	Add support for metadata representing .ident directives.	2013-10-16 01:49:05 +00:00
YAMLParser	[Support][YAML] Add support for accessing tags and tag handle substitution.	2013-10-18 22:38:04 +00:00
CMakeLists.txt	Add llvm-c-test to check-llvm.	2013-10-23 17:57:04 +00:00
lit.cfg	llvm/test/lit.cfg: Tighten conditions to enable 'native'.	2013-10-26 02:50:20 +00:00
lit.site.cfg.in
Makefile
Makefile.tests
TestRunner.sh