Hans Wennborg 6b07d4afc7 Build lookup tables for switches (PR884) ... This adds a transformation to SimplifyCFG that attemps to turn switch instructions into loads from lookup tables. It works on switches that are only used to initialize one or more phi nodes in a common successor basic block, for example: int f(int x) { switch (x) { case 0: return 5; case 1: return 4; case 2: return -2; case 5: return 7; case 6: return 9; default: return 42; } This speeds up the code by removing the hard-to-predict jump, and reduces code size by removing the code for the jump targets. llvm-svn: 163302		2012-09-06 09:43:28 +00:00
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Analysis	JumpThreading: when default destination is the destination of some cases in a	2012-09-05 23:45:58 +00:00
Archive	Mark checkSignature const, and in turn stop casting away const from	2012-09-05 22:09:23 +00:00
AsmParser	[ms-inline asm] Enumerate the InlineAsm dialects and rename the nsdialect to	2012-09-05 19:00:49 +00:00
Bitcode	[ms-inline asm] Enumerate the InlineAsm dialects and rename the nsdialect to	2012-09-05 19:00:49 +00:00
CodeGen	Add a new optimization pass: Stack Coloring, that merges disjoint static allocations (allocas). Allocas are known to be	2012-09-06 09:17:37 +00:00
DebugInfo	Stop casting away const qualifier needlessly.	2012-09-05 22:26:57 +00:00
ExecutionEngine	Stop casting away const qualifier needlessly.	2012-09-05 22:26:57 +00:00
Linker	Move the "findUsedStructTypes" functionality outside of the Module class.	2012-08-03 00:30:35 +00:00
MC	Constify subtarget info properly so that we dont cast away the const in	2012-09-05 21:43:57 +00:00
Object	Reverting r 160419.	2012-07-19 21:43:55 +00:00
Support	Whitespace.	2012-09-06 03:02:56 +00:00
TableGen	Tristate mayLoad, mayStore, and hasSideEffects.	2012-08-23 19:34:46 +00:00
Target	Optimize codegen for VSETLNi{8,16,32} operating on Q registers. Degenerate to a VSETLN on D registers, instead of an (INSERT_SUBREG (VSETLN (EXTRACT_SUBREG ))) sequence to help the register coalescer.	2012-09-06 09:16:01 +00:00
Transforms	Build lookup tables for switches (PR884)	2012-09-06 09:43:28 +00:00
VMCore	Stop casting away const qualifier needlessly.	2012-09-05 22:26:57 +00:00
CMakeLists.txt
LLVMBuild.txt
Makefile