Chandler Carruth c0d18b6696 Fix ValueTracking to conclude that debug intrinsics are safe to ... speculate. Without this, loop rotate (among many other places) would suddenly stop working in the presence of debug info. I found this looking at loop rotate, and have augmented its tests with a reduction out of a very hot loop in yacr2 where failing to do this rotation costs sometimes more than 10% in runtime performance, perturbing numerous downstream optimizations. This should have no impact on performance without debug info, but the change in performance when debug info is enabled can be extreme. As a consequence (and this how I got to this yak) any profiling of performance problems should be treated with deep suspicion -- they may have been wildly innacurate of debug info was enabled for profiling. =/ Just a heads up. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154263 91177308-0d34-0410-b5e6-96231b3b80d8		2012-04-07 19:22:18 +00:00
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Analysis	Fix ValueTracking to conclude that debug intrinsics are safe to	2012-04-07 19:22:18 +00:00
Archive	Include cstdio in a few place that depended on getting it transitively through StringExtras.h	2012-03-23 11:35:30 +00:00
AsmParser	Convert assert(0) to llvm_unreachable	2012-02-07 05:05:23 +00:00
Bitcode	llvm::SwitchInst	2012-03-11 06:09:17 +00:00
CodeGen	Patch to set is_stmt a little better for prologue lines in a function.	2012-04-05 20:39:05 +00:00
DebugInfo	Fix a C++11 UDL conflict.	2012-04-04 20:33:56 +00:00
ExecutionEngine	Removing a file that's no longer being used after the recent refactorings	2012-04-01 06:50:01 +00:00
Linker	It's possible for two types, which are isomorphic, to be added to the	2012-03-23 23:17:38 +00:00
MC	Output UTF-8-encoded characters as identifier characters into assembly	2012-04-07 00:37:53 +00:00
Object	Object: drop bogus VMCore dependency	2012-04-03 15:48:10 +00:00
Support	In MemoryBuffer::getOpenFile() make sure that the buffer is null-terminated if	2012-04-05 04:23:56 +00:00
TableGen	Fix infinite loop in nested multiclasses.	2012-03-07 16:39:35 +00:00
Target	Fix Thumb __builtin_longjmp with integrated assembler. <rdar://problem/11203543>	2012-04-07 16:51:59 +00:00
Transforms	Refactor: Use positive field names in VectorizeConfig.	2012-04-07 03:56:23 +00:00
VMCore	The speedup doesn't appear to have been from this, but was an anomaly of my testing machine.	2012-04-03 11:19:21 +00:00
CMakeLists.txt	Move TableGen's parser and entry point into a library	2011-10-01 16:41:13 +00:00
LLVMBuild.txt	LLVMBuild: Introduce a common section which currently has a list of the	2011-12-12 22:45:54 +00:00
Makefile	Remove more of llvmc and dependencies.	2011-09-20 00:34:27 +00:00