Rafael Espindola e8075c6877 InstCombine: Improvement to check if signed addition overflows. ... This patch implements two things: 1. If we know one number is positive and another is negative, we return true as signed addition of two opposite signed numbers will never overflow. 2. Implemented TODO : If one of the operands only has one non-zero bit, and if the other operand has a known-zero bit in a more significant place than it (not including the sign bit) the ripple may go up to and fill the zero, but won't change the sign. e.x - (x & ~4) + 1 We make sure that we are ignoring 0 at MSB. Patch by Suyog Sarda. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209746 91177308-0d34-0410-b5e6-96231b3b80d8		2014-05-28 15:30:40 +00:00
..
Analysis	avoid type mismatch when building SCEVs	2014-05-27 22:42:00 +00:00
AsmParser	[modules] Add module maps for LLVM. These are not quite ready for prime-time	2014-05-21 02:46:14 +00:00
Bitcode	Convert a few loops to use ranges.	2014-05-26 13:38:51 +00:00
CodeGen	Change representation of instruction ranges where variable is accessible.	2014-05-27 23:09:50 +00:00
DebugInfo	[modules] Add module maps for LLVM. These are not quite ready for prime-time	2014-05-21 02:46:14 +00:00
ExecutionEngine	AArch64/ARM64: move ARM64 into AArch64's place	2014-05-24 12:50:23 +00:00
IR	Factor out comparison of Instruction "special" states.	2014-05-27 21:35:46 +00:00
IRReader
LineEditor
Linker	Use create methods since msvc doesn't handle delegating constructors.	2014-05-17 21:29:57 +00:00
LTO	AArch64/ARM64: move ARM64 into AArch64's place	2014-05-24 12:50:23 +00:00
MC	[mips][mips64r6] Add Relocations R_MIPS_PCHI16, R_MIPS_PCLO16	2014-05-27 14:58:51 +00:00
Object	[YAML] Add an optional argument EnumMask to the yaml::IO::bitSetCase().	2014-05-23 08:07:09 +00:00
Option	Options: Use erase_if to remove Args from the list.	2014-05-18 15:14:13 +00:00
ProfileData	ProfileData: Allow multiple profiles in RawInstrProfReader	2014-05-16 00:38:00 +00:00
Support	Fixup sys::getHostCPUFeatures crypto names so it doesn't clash with kernel headers	2014-05-23 10:14:13 +00:00
TableGen	[modules] Add module maps for LLVM. These are not quite ready for prime-time	2014-05-21 02:46:14 +00:00
Target	Revert "[PPC] Use alias symbols in address computation."	2014-05-28 15:25:06 +00:00
Transforms	InstCombine: Improvement to check if signed addition overflows.	2014-05-28 15:30:40 +00:00
CMakeLists.txt
LLVMBuild.txt
Makefile