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LLVM backend for 6502
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268c0509a9
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Akira Hatanaka 268c0509a9 Fix a bug in which BranchProbabilityInfo wasn't setting branch weights of basic blocks inside loops correctly. 
Previously, BranchProbabilityInfo::calcLoopBranchHeuristics would determine the weights of basic blocks inside loops even when it didn't have enough information to estimate the branch probabilities correctly. This patch fixes the function to exit early if it doesn't see any exit edges or back edges and let the later heuristics determine the weights.

This fixes PR18705 and <rdar://problem/15991090>.

Differential Revision: http://reviews.llvm.org/D3363



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206194 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-14 16:56:19 +00:00
autoconf ARM64: initial backend import 2014-03-29 10:18:08 +00:00
bindings
cmake AddLLVM: Mute the prefix "lib" in SHARED on win32. 2014-04-10 15:47:04 +00:00
docs Remove documentation for a deleted pass. 2014-04-12 02:09:17 +00:00
examples Fix warnings about an variable only used in asserts. 2014-03-06 06:35:46 +00:00
include Teach llvm-lto to respect the given RelocModel. 2014-04-14 13:54:16 +00:00
lib Fix a bug in which BranchProbabilityInfo wasn't setting branch weights of basic blocks inside loops correctly. 2014-04-14 16:56:19 +00:00
projects Remove projects/sample. 2014-03-12 22:40:22 +00:00
test Fix a bug in which BranchProbabilityInfo wasn't setting branch weights of basic blocks inside loops correctly. 2014-04-14 16:56:19 +00:00
tools tools: fix heap-buffer-overrun detected via ASAN 2014-04-14 16:38:25 +00:00
unittests [Allocator] Make the underlying allocator a template instead of an 2014-04-14 05:11:27 +00:00
utils Display the name of the project failing the url check in the release script 2014-04-14 12:36:48 +00:00
.arcconfig Updated phabricator server. 2014-04-07 03:57:04 +00:00
.clang-format
.gitignore Remove projects/sample. 2014-03-12 22:40:22 +00:00
CMakeLists.txt Add ability to disable building LLVM utils 2014-04-02 22:49:58 +00:00
CODE_OWNERS.TXT ARM Linux support 2014-04-02 23:03:28 +00:00
configure ARM64: initial backend import 2014-03-29 10:18:08 +00:00
CREDITS.TXT Test commit. 2014-04-10 22:25:51 +00:00
LICENSE.TXT Remove projects/sample. 2014-03-12 22:40:22 +00:00
llvm.spec.in
LLVMBuild.txt
Makefile [configure/make] Propagate names of build host tools when making BuildTools 2014-03-25 21:45:41 +00:00
Makefile.common
Makefile.config.in Add a --enable-clang-plugin-support option to configure. 2014-03-10 16:58:35 +00:00
Makefile.rules Use -std=gnu++11 on cygwin and mingw. 2014-03-12 20:01:15 +00:00
README.txt

README.txt 

Low Level Virtual Machine (LLVM)
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