Zhou Sheng 702aa2ee19 The patch is to improve the memory footprint of pass GlobalOpt. ... Also check in a case to repeat the issue, on which 'opt -globalopt' consumes 1.6GB memory. The big memory footprint cause is that current GlobalOpt one by one hoists and stores the leaf element constant into the global array, in each iteration, it recreates the global array initializer constant and leave the old initializer alone. This may result in many obsolete constants left. For example: we have global array @rom = global [16 x i32] zeroinitializer After the first element value is hoisted and installed: @rom = global [16 x i32] [ 1, 0, 0, ... ] After the second element value is installed: @rom = global [16 x 32] [ 1, 2, 0, 0, ... ] // here the previous initializer is obsolete ... When the transform is done, we have 15 obsolete initializers left useless. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169079 91177308-0d34-0410-b5e6-96231b3b80d8		2012-12-01 04:38:53 +00:00
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Hello
InstCombine	reversed the logic of the log2 detection routine to reduce the number of nested ifs	2012-11-30 22:47:15 +00:00
Instrumentation	[asan] simplify the code around doesNotReturn call. It now magically works.	2012-11-30 11:08:59 +00:00
IPO	The patch is to improve the memory footprint of pass GlobalOpt.	2012-12-01 04:38:53 +00:00
Scalar	Replace r168930 with a more reasonable patch.	2012-11-30 22:08:55 +00:00
Utils	Fix non-determinism introduced in r168970 and pointed out by Duncan.	2012-11-30 09:34:29 +00:00
Vectorize	minor cleanups	2012-11-30 22:37:11 +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