Chris Lattner f4f5a77fdc Two changes: ... 1. Implement InstCombine/deadcode.ll by not adding instructions in unreachable blocks (due to constants in conditional branches/switches) to the worklist. This causes them to be deleted before instcombine starts up, leading to better optimization. 2. In the prepass over instructions, do trivial constprop/dce as we go. This has the effect of improving the effectiveness of #1. In addition, it *significantly* speeds up instcombine on test cases with large amounts of constant folding code (for example, that produced by code specialization or partial evaluation). In one example, it speeds up instcombine from 0.0589s to 0.0224s with a release build (a 2.6x speedup). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28215 91177308-0d34-0410-b5e6-96231b3b80d8		2006-05-10 19:00:36 +00:00
..
Analysis	Implement Transforms/IndVarsSimplify/complex-scev.ll, a case where we didn't	2006-04-26 18:34:07 +00:00
Archive	Apply bug fix supplied by Greg Pettyjohn for a bug he found: '<invalid>' is not a legal path on Windows.	2006-05-06 23:25:53 +00:00
AsmParser
Bytecode	Apply bug fix supplied by Greg Pettyjohn for a bug he found: '<invalid>' is not a legal path on Windows.	2006-05-06 23:25:53 +00:00
CodeGen	Templatify RegReductionPriorityQueue	2006-05-10 06:16:44 +00:00
Debugger	Add the README files to the distribution.	2006-04-13 06:39:24 +00:00
ExecutionEngine	Move some methods out of line so that MutexGuard.h isn't needed in a public header.	2006-05-08 22:00:52 +00:00
Linker
Support	Fix PR743: emit -help output of a tool to cout, not cerr.	2006-04-28 05:36:25 +00:00
System	Unlike Unix, Windows won't let a file be implicitly replaced via renaming without explicit permission.	2006-05-07 02:51:51 +00:00
Target	Fix the PowerPC JIT-only failure on UnitTests/Vector/sumarray-dbl, which is	2006-05-10 06:38:32 +00:00
Transforms	Two changes:	2006-05-10 19:00:36 +00:00
VMCore	Add an assertion for a common error	2006-05-10 04:32:43 +00:00
Makefile