llvm-6502/test
Jakob Stoklund Olesen e3b548219f Correctly deal with identity copies in RegisterCoalescer.
Now that the coalescer keeps live intervals and machine code in sync at
all times, it needs to deal with identity copies differently.

When merging two virtual registers, all identity copies are removed
right away. This means that other identity copies must come from
somewhere else, and they are going to have a value number.

Deal with such copies by merging the value numbers before erasing the
copy instruction. Otherwise, we leave dangling value numbers in the live
interval.

This fixes PR12927.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157340 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-23 20:21:06 +00:00
..
Analysis SCEV: Add MarkPendingLoopPredicates to avoid recursive isImpliedCond. 2012-05-19 00:48:25 +00:00
Archive
Assembler
Bindings/Ocaml
Bitcode Recommited r156374 with critical fixes in BitcodeReader/Writer: 2012-05-12 10:48:17 +00:00
BugPoint
CodeGen Correctly deal with identity copies in RegisterCoalescer. 2012-05-23 20:21:06 +00:00
DebugInfo Add support for C++11 enum classes in llvm. 2012-05-23 00:09:20 +00:00
ExecutionEngine Temporarily disabled the MCJIT tests for Darwin, because the RuntimeDyldMachO has a problems with relocations for 32bit x86. 2012-05-18 00:30:58 +00:00
Feature
Instrumentation
Integer
Linker
MC Refactor data-in-code annotations. 2012-05-18 19:12:01 +00:00
Object
Other Teach the 'opt' tool about '-Os' and '-Oz', corresponding to the Clang 2012-05-16 08:32:49 +00:00
Scripts
TableGen
Transforms BoundsChecking: add a couple of simple tests and fix a bug in branch emition 2012-05-23 16:24:52 +00:00
Unit
Verifier
YAMLParser
CMakeLists.txt - Added ExecutionEngine/MCJIT tests 2012-05-17 21:07:47 +00:00
lit.cfg
lit.site.cfg.in - Added ExecutionEngine/MCJIT tests 2012-05-17 21:07:47 +00:00
Makefile - Added ExecutionEngine/MCJIT tests 2012-05-17 21:07:47 +00:00
Makefile.tests
site.exp.in
TestRunner.sh