Erik Eckstein 72a1394991 Optimize switch lookup tables with linear mapping. ... This is a simple optimization for switch table lookup: It computes the output value directly with an (optional) mul and add if there is a linear mapping between index and output. Example: int f1(int x) { switch (x) { case 0: return 10; case 1: return 11; case 2: return 12; case 3: return 13; } return 0; } generates: define i32 @f1(i32 %x) #0 { entry: %0 = icmp ult i32 %x, 4 br i1 %0, label %switch.lookup, label %return switch.lookup: %switch.offset = add i32 %x, 10 ret i32 %switch.offset return: ret i32 0 } git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222121 91177308-0d34-0410-b5e6-96231b3b80d8		2014-11-17 09:13:57 +00:00
..
Hello	[CMake] Add LLVM_LINK_COMPONENTS to loadable modules, LLVMHello and BugpointPasses, on Win32.	2014-07-13 13:36:48 +00:00
InstCombine	InstCombine: Fix infinite loop caused by visitFPTrunc	2014-11-14 21:21:15 +00:00
Instrumentation	Fix 80 cols caught by the linter...	2014-11-14 00:41:42 +00:00
IPO	Reformat partially, where I touched for whitespace changes.	2014-10-28 11:54:52 +00:00
ObjCARC	Add back r222061 with a fix.	2014-11-17 02:28:27 +00:00
Scalar	Reapply r221924: "[GVN] Perform Scalar PRE on gep indices that feed loads before	2014-11-14 21:09:13 +00:00
Utils	Optimize switch lookup tables with linear mapping.	2014-11-17 09:13:57 +00:00
Vectorize	IR: Make MDString::getName() private	2014-11-13 23:59:16 +00:00
CMakeLists.txt
LLVMBuild.txt
Makefile