Chandler Carruth 34afa06cf2 [inliner] Fix the early-exit of the inline cost analysis to correctly ... model the dense vector instruction bonuses. Previously, this code really didn't effectively compute the density of inlined vector instructions and apply the intended inliner bonus. It would try to compute it repeatedly while analyzing the function and didn't handle the case where future vector instructions would tip the scales back towards the bonus. Instead, speculatively apply all possible bonuses to the threshold initially. Once we *know* that a certain bonus can not be applied, subtract it. This should delay early bailout enough to get much more consistent results without actually causing us to analyze huge swaths of code. I expect some (hopefully mild) compile time hit here, and some swings in performance, but this was definitely the intended behavior of these bonuses. This also dramatically simplifies the computation of the bonuses to not interact with each other in confusing ways. The previous code didn't do a good job of this and the values for bonuses may be surprising but are at least now clearly written in the code. Finally, fix code to be in line with comments and use zero as the bailout condition. Patch by Easwaran Raman, with some comment tweaks by me to try and further clarify what is going on with this code. http://reviews.llvm.org/D8267 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238276 91177308-0d34-0410-b5e6-96231b3b80d8		2015-05-27 02:49:05 +00:00
..
Analysis	Revert r236894 "[BasicAA] Fix zext & sext handling"	2015-05-22 01:27:37 +00:00
Assembler	IR / debug info: Add a DWOId field to DICompileUnit,	2015-05-21 20:37:30 +00:00
Bindings
Bitcode	[BitcodeReader] Change assert to report_fatal_error	2015-05-27 01:05:40 +00:00
BugPoint
CodeGen	Print "lock \t foo" instead of "lock \n foo".	2015-05-26 18:35:10 +00:00
DebugInfo	AsmPrinter: Emit the DwarfStringPool offset directly when possible	2015-05-24 16:14:59 +00:00
ExecutionEngine
Feature
FileCheck
Instrumentation	Fix the check strings in a test case committed in r212455.	2015-05-15 00:12:26 +00:00
Integer
JitListener
Linker
LTO
MC	R600/SI: Add assembler support for all CI and VI VOP2 instructions	2015-05-26 15:55:52 +00:00
Object	Stop inventing symbol sizes.	2015-05-22 15:43:00 +00:00
Other
SymbolRewriter
TableGen	Use std::bitset for SubtargetFeatures.	2015-05-26 10:47:10 +00:00
tools	[llvm-readobj/ELF] Teach how to decode DF_1_XXX flags	2015-05-25 19:12:18 +00:00
Transforms	[inliner] Fix the early-exit of the inline cost analysis to correctly	2015-05-27 02:49:05 +00:00
Unit
Verifier	[Verifier] Assert gc_relocate always return a pointer type	2015-05-18 19:50:14 +00:00
YAMLParser	YAML: Implement block scalar parsing.	2015-05-13 23:10:51 +00:00
.clang-format
CMakeLists.txt
lit.cfg
lit.site.cfg.in
Makefile
Makefile.tests
TestRunner.sh