Erik Eckstein c394c42d6d Peephole optimization in switch table lookup: reuse the guarding table comparison if possible. ... This optimization tries to reuse the generated compare instruction, if there is a comparison against the default value after the switch. Example: if (idx < tablesize) r = table[idx]; // table does not contain default_value else r = default_value; if (r != default_value) ... Is optimized to: cond = idx < tablesize; if (cond) r = table[idx]; else r = default_value; if (cond) ... \endcode Jump threading will then eliminate the second if(cond). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222872 91177308-0d34-0410-b5e6-96231b3b80d8		2014-11-27 08:33:51 +00:00
..
Analysis	InstSimplify: Restore optimizations lost in r210006	2014-11-27 06:32:46 +00:00
AsmParser
Bitcode	Add and use Type::subtypes. NFC.	2014-11-24 20:44:36 +00:00
CodeGen	Converted back to Unix format (after my last commit 222632)	2014-11-23 15:21:53 +00:00
DebugInfo
ExecutionEngine	Add LLVMObject to LLVMExecutionEngine.	2014-11-27 06:36:22 +00:00
IR	Revert r220349 to re-instate r220277 with a fix for PR21330 -- quite	2014-11-25 08:20:27 +00:00
IRReader
LineEditor
Linker	Set the body of a new struct as soon as it is created.	2014-11-25 15:33:40 +00:00
LTO
MC	Reapply 222538 and update tests to explicitly request small code model	2014-11-25 13:37:55 +00:00
Object	Object/COFF: Fix off-by-one error for object having lots of relocations	2014-11-26 22:17:25 +00:00
Option
ProfileData
Support	[msan] Annotate zlib functions for MemorySanitizer.	2014-11-25 15:24:07 +00:00
TableGen
Target	R600/SI: Use ZeroOrNegativeOneBooleanContent	2014-11-26 21:23:15 +00:00
Transforms	Peephole optimization in switch table lookup: reuse the guarding table comparison if possible.	2014-11-27 08:33:51 +00:00
CMakeLists.txt
LLVMBuild.txt
Makefile