Dan Gohman 01ecca20bf Teach getZeroExtendExpr and getSignExtendExpr to use trip-count ... information to simplify [sz]ext({a,+,b}) to {zext(a),+,[zs]ext(b)}, as appropriate. These functions and the trip count code each call into the other, so this requires careful handling to avoid infinite recursion. During the initial trip count computation, conservative SCEVs are used, which are subsequently discarded once the trip count is actually known. Among other benefits, this change lets LSR automatically eliminate some unnecessary zext-inreg and sext-inreg operation where the operand is an induction variable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70241 91177308-0d34-0410-b5e6-96231b3b80d8		2009-04-27 20:16:15 +00:00
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Analysis	Teach getZeroExtendExpr and getSignExtendExpr to use trip-count	2009-04-27 20:16:15 +00:00
Archive	Add the private linkage.	2009-01-15 20:18:42 +00:00
AsmParser	testcase and asmparser fix for PR4066	2009-04-25 21:26:00 +00:00
Bitcode	Make a major API change to BitstreamReader: split all the reading	2009-04-26 20:59:02 +00:00
CodeGen	Don't skip the CopyMI when removing kill markers.	2009-04-27 19:55:47 +00:00
CompilerDriver	-write-graph now can be used with -o.	2009-03-27 12:57:14 +00:00
Debugger	Oops...I committed too much.	2009-03-13 04:39:26 +00:00
ExecutionEngine	Under unusual circumstances (jitting a function that causes the creation of	2009-04-27 05:09:44 +00:00
Linker	Add a new "available_externally" linkage type. This is intended	2009-04-13 05:44:34 +00:00
Support	Fix PR4040: APInt's string constructor is too strict	2009-04-25 18:34:04 +00:00
System	Fix g++-4.4.0 warning, it was causing llvm-nm to fail on wrapped BC files:	2009-04-25 10:25:12 +00:00
Target	2nd attempt, fixing SSE4.1 issues and implementing feedback from duncan.	2009-04-27 18:41:29 +00:00
Transforms	Return null instead of false, as appropriate.	2009-04-25 17:28:45 +00:00
VMCore	Any size of integral indices are allowed in gep for indexing into sequential types. Also adding a test case to check the indices type allowed into struct.	2009-04-26 17:14:35 +00:00
Makefile	Reorganize llvmc code.	2009-03-02 09:01:14 +00:00