Sanjay Patel 81029f6a76 [DAG] fold negation of sign-bit ... 0 - X --> 0, if the sub is NUW 0 - X --> 0, if X is 0 or the minimum signed value and the sub is NSW 0 - X --> X, if X is 0 or the minimum signed value This is the DAG equivalent of: https://reviews.llvm.org/rL284649 plus the fold for the NUW case which already existed in InstSimplify. Note that we miss a vector fold because of a deficiency in the DAG version of computeKnownBits(). llvm-svn: 284844		2016-10-21 17:24:26 +00:00
..
Analysis	[LoopUnroll] Keep the loop test only on the first iteration of max-or-zero loops	2016-10-21 11:08:48 +00:00
Assembler	DebugInfo: preparation to implement DW_AT_alignment	2016-10-20 00:13:12 +00:00
Bindings	…
Bitcode	DebugInfo: remove broken bitcode upgrade test	2016-10-20 00:26:36 +00:00
BugPoint	Disable fatal errors in the Verifier instantiated by bugpoint's crash	2016-10-18 16:24:43 +00:00
CodeGen	[DAG] fold negation of sign-bit	2016-10-21 17:24:26 +00:00
DebugInfo	Using branch probability to guide critical edge splitting.	2016-10-20 18:06:52 +00:00
Demangle	Add an c++ itanium demangler to llvm.	2016-09-06 19:16:48 +00:00
Examples	…
ExecutionEngine	Fix PREL31 relocation on ARM	2016-10-20 21:15:29 +00:00
Feature	…
FileCheck	…
Instrumentation	[asan] Append line number to variable name if line is available and in the same file as the function.	2016-10-18 23:29:41 +00:00
Integer	…
JitListener	…
LTO	LTO: Use the correct mangler function in LTOCodeGenerator::applyScopeRestrictions().	2016-10-12 20:12:19 +00:00
LibDriver	…
Linker	Fix autoupgrade logic for Objective-C class properties module flag	2016-09-16 00:38:18 +00:00
MC	[AMDGPU][mc] Fix ds_min/max[_rtn]_f32 - extra source operand removed.	2016-10-21 14:49:22 +00:00
Object	Another additional error check for invalid Mach-O files for the	2016-10-20 20:10:30 +00:00
ObjectYAML	…
Other	[PM] Port CFGViewer and CFGPrinter to the new Pass Manager	2016-09-15 18:35:27 +00:00
SymbolRewriter	…
TableGen	[TableGen] AsmMatcher: Add AsmVariantName to Instruction class.	2016-09-08 15:50:52 +00:00
ThinLTO/X86	[ThinLTO] Don't link module level assembly when importing	2016-10-12 18:39:29 +00:00
Transforms	[LVI] Fix a bug with a guard being the very first instruction in a BB not taken into account	2016-10-21 15:02:21 +00:00
Unit	…
Verifier	Verifier: Reject any unknown named MD nodes in the llvm.dbg namespace.	2016-10-05 22:15:37 +00:00
YAMLParser	…
tools	[PGO] Fix bogus warning for merging empty llvm profile file	2016-10-19 22:51:17 +00:00
.clang-format	…
CMakeLists.txt	Add an llvm-opt-report tool to generate basic source-annotated optimization summaries	2016-10-05 22:10:35 +00:00
TestRunner.sh	…
lit.cfg	cmake: Install the OCaml libraries into a more correct path	2016-09-30 18:34:23 +00:00
lit.site.cfg.in	…