Duncan Sands 0fd120b970 Make the reassociation pass more powerful so that it can handle expressions ... with arbitrary topologies (previously it would give up when hitting a diamond in the use graph for example). The testcase from PR12764 is now reduced from a pile of additions to the optimal 1617*%x0+208. In doing this I changed the previous strategy of dropping all uses for expression leaves to one of dropping all but one use. This works out more neatly (but required a bunch of tweaks) and is also safer: some recently fixed bugs during recursive linearization were because the linearization code thinks it completely owns a node if it has no uses outside the expression it is linearizing. But if the node was also in another expression that had been linearized (and thus all uses of the node from that expression dropped) then the conclusion that it is completely owned by the expression currently being linearized is wrong. Keeping one use from within each linearized expression avoids this kind of mistake. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157467 91177308-0d34-0410-b5e6-96231b3b80d8		2012-05-25 12:03:02 +00:00
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Hello	Since the Hello pass is built as a loadable dynamic library, don't try to convert it to new-style registration yet.	2010-10-07 00:31:16 +00:00
InstCombine	add a new pass to instrument loads and stores for run-time bounds checking	2012-05-22 17:19:09 +00:00
Instrumentation	Use zero-based shadow by default on Android.	2012-05-23 11:52:12 +00:00
IPO	Fix the inliner so that the optsize function attribute don't alter the	2012-05-23 13:42:57 +00:00
Scalar	Make the reassociation pass more powerful so that it can handle expressions	2012-05-25 12:03:02 +00:00
Utils	PR1255 related changes (case ranges):	2012-05-24 09:33:20 +00:00
Vectorize	Don't vectorize target-specific types (ppc_fp128, x86_fp80, etc.).	2012-04-27 19:34:00 +00:00
CMakeLists.txt	Add a basic-block autovectorization pass.	2012-02-01 03:51:43 +00:00
LLVMBuild.txt	Add a basic-block autovectorization pass.	2012-02-01 03:51:43 +00:00
Makefile	Add a basic-block autovectorization pass.	2012-02-01 03:51:43 +00:00