Jingyue Wu 9cecacd16a Simplify n-ary adds by reassociation ... Summary: This transformation reassociates a n-ary add so that the add can partially reuse existing instructions. For example, this pass can simplify void foo(int a, int b) { bar(a + b); bar((a + 2) + b); } to void foo(int a, int b) { int t = a + b; bar(t); bar(t + 2); } saving one add instruction. Fixes PR22357 (https://llvm.org/bugs/show_bug.cgi?id=22357). Test Plan: nary-add.ll Reviewers: broune, dberlin, hfinkel, meheff, sanjoy, atrick Reviewed By: sanjoy, atrick Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D8950 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234855 91177308-0d34-0410-b5e6-96231b3b80d8		2015-04-14 04:59:22 +00:00
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InstCombine	Removing LLVM_DELETED_FUNCTION, as MSVC 2012 was the last reason for requiring the macro. NFC; LLVM edition.	2015-02-15 22:54:22 +00:00
IPO	libLTO, llvm-lto, gold: Introduce flag for controlling optimization level.	2015-03-19 22:01:00 +00:00
Scalar	[PM] Clean up a stale comment that came from a differnt pass when	2015-02-01 11:35:56 +00:00
Utils	[LoopUnrollRuntime] Avoid high-cost trip count computation.	2015-04-14 03:20:38 +00:00
Instrumentation.h	GCOV: Make the exit block placement from r223193 optional	2015-03-16 23:52:03 +00:00
IPO.h	Introduce bitset metadata format and bitset lowering pass.	2015-02-20 20:30:47 +00:00
ObjCARC.h	Reformat linefeeds.	2014-05-26 00:25:26 +00:00
Scalar.h	Simplify n-ary adds by reassociation	2015-04-14 04:59:22 +00:00
Vectorize.h	Allow vectorization of bit intrinsics in BB Vectorizer.	2014-04-25 03:33:48 +00:00