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LLVM backend for 6502
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6be75ae196
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Jakob Stoklund Olesen 6be75ae196 Don't crash on extra evil irreducible control flow. 
When the CFG contains a loop with multiple entry blocks, the traces
computed by MachineTraceMetrics don't always have the same nice
properties. Loop back-edges are normally excluded from traces, but
MachineLoopInfo doesn't recognize loops with multiple entry blocks, so
those back-edges may be included.

Avoid asserting when that happens by adding an isEarlierInSameTrace()
function that accurately determines if a dominating block is part of the
same trace AND is above the currrent block in the trace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165434 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-08 22:06:44 +00:00
autoconf Re-enable support for --program-prefix. 2012-10-01 18:40:32 +00:00
bindings Fix the ocaml binding breakage from TargetData -> DataLayout changes. 2012-10-08 17:06:25 +00:00
cmake [CMake] Enhance add_llvm_external_project. 2012-10-05 14:10:17 +00:00
docs Move TargetData to DataLayout. 2012-10-08 16:39:34 +00:00
examples Move TargetData to DataLayout. 2012-10-08 16:37:04 +00:00
include Begin the transition to using the AttributesImpl object for the Attributes ivar. 2012-10-08 21:47:17 +00:00
lib Don't crash on extra evil irreducible control flow. 2012-10-08 22:06:44 +00:00
projects Re-enable support for --program-prefix. 2012-10-01 18:40:32 +00:00
runtime Use a special path to place the .o files in. 2012-10-08 21:17:45 +00:00
test Don't crash on extra evil irreducible control flow. 2012-10-08 22:06:44 +00:00
tools Use a special path to place the .o files in. 2012-10-08 21:17:45 +00:00
unittests Move TargetData to DataLayout. 2012-10-08 16:39:34 +00:00
utils Move TargetData to DataLayout. 2012-10-08 16:39:34 +00:00
.gitignore Ignore the documentation-suggested location for compile_commands.json 2012-08-21 19:23:30 +00:00
CMakeLists.txt Removing dependency on third party library for Intel JIT event support. 2012-09-28 17:35:20 +00:00
CODE_OWNERS.TXT Add the list of code owners to the top level of the LLVM source tree to 2012-07-26 08:04:09 +00:00
configure Re-enable support for --program-prefix. 2012-10-01 18:40:32 +00:00
CREDITS.TXT Move TargetData to DataLayout. 2012-10-08 16:40:38 +00:00
LICENSE.TXT Add YAML parser to Support. 2012-04-03 23:09:22 +00:00
llvm.spec.in Tidy up. s/Low Level Virtual Machine/LLVM/. 2012-01-25 22:00:23 +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 Set the 'build clang only' flag when we're building only clang. 2012-10-02 20:32:23 +00:00
Makefile.common [docs] Remove unsupported references to ExtraSource variable. 2012-05-15 21:32:27 +00:00
Makefile.config.in Re-enable support for --program-prefix. 2012-10-01 18:40:32 +00:00
Makefile.rules Use a special path to place the .o files in. 2012-10-08 21:17:45 +00:00
README.txt test commit 2012-07-11 17:34:12 +00:00

README.txt 

Low Level Virtual Machine (LLVM)
================================

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Please see the HTML documentation provided in docs/index.html for further
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