Bill Schmidt 5ff776bfde This patch addresses bug 15031. ... The common code in the post-RA scheduler to break anti-dependencies on the critical path contained a flaw. In the reported case, an anti-dependency between the overlapping registers %X4 and %R4 exists: %X29<def> = OR8 %X4, %X4 %R4<def>, %X3<def,dead,tied3> = LBZU 1, %X3<kill,tied1> The unpatched code breaks the dependency by replacing %R4 and its uses with %R3, the first register on the available list. However, %R3 and %X3 overlap, so this creates two overlapping definitions on the same instruction. The fix is straightforward, preventing selection of a register that overlaps any other defined register on the same instruction. The test case is reduced from the bug report, and verifies that we no longer produce "lbzu 3, 1(3)" when breaking this anti-dependency. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173706 91177308-0d34-0410-b5e6-96231b3b80d8		2013-01-28 18:36:58 +00:00
..
Analysis	Initial implementation of PPCTargetTransformInfo	2013-01-25 23:05:59 +00:00
Archive
Assembler	Fast-math test case for bitcode and textual reading/writing	2012-11-27 00:45:08 +00:00
Bindings/Ocaml
Bitcode	Change encoding of instruction operands in bitcode binaries to be relative	2012-10-11 20:20:40 +00:00
BugPoint	Fix unexpected passes. These test do work with LTO on linux. I tested both	2012-10-26 02:19:02 +00:00
CodeGen	This patch addresses bug 15031.	2013-01-28 18:36:58 +00:00
DebugInfo	PR14566: Debug Info: Removing top level lexical blocks	2013-01-26 21:55:23 +00:00
ExecutionEngine	Introduce llvm::sys::getProcessTriple() function.	2013-01-16 17:27:22 +00:00
Feature	There was a switch fall-through in the parser for textual LLVM that caused	2013-01-07 13:32:38 +00:00
FileCheck	Fix a bug in FileCheck that wouldn't let define variables as follows:	2012-12-02 16:02:41 +00:00
Instrumentation	[msan] Mostly disable msan-handle-icmp-exact.	2013-01-28 11:42:28 +00:00
Integer	Remove the dependent libraries feature.	2012-11-27 09:55:56 +00:00
JitListener	Use the 'count' attribute to calculate the upper bound of an array.	2012-12-04 21:34:03 +00:00
Linker	[IR] Add 'Append' and 'AppendUnique' module flag behaviors.	2013-01-16 21:38:56 +00:00
MC	Fix 256-bit PALIGNR comment decoding to understand that it works on independent 256-bit lanes.	2013-01-28 07:41:18 +00:00
Object	[llvm-objdump] Emit addresses with the correct number of leading 0's.	2013-01-10 22:40:50 +00:00
Other	XFAIL close-stderr on win32	2013-01-25 22:12:54 +00:00
Scripts	Set the +x bit on two batch scripts	2013-01-25 22:12:50 +00:00
TableGen	FileCheck-ify some grep tests	2013-01-25 22:11:46 +00:00
tools	PR10867: Analogue of r169441 for when using external 'sh'. And actually run the test!	2012-12-05 23:15:33 +00:00
Transforms	Re-revert r173342, without losing the compile time improvements, flat	2013-01-27 06:42:03 +00:00
Unit
Verifier	[IR] Add 'Append' and 'AppendUnique' module flag behaviors.	2013-01-16 21:38:56 +00:00
YAMLParser
CMakeLists.txt	llvm/test/CMakeLists.txt: Add a dependency to llvm-rtdyld in check-llvm.	2013-01-25 23:24:07 +00:00
lit.cfg	Introduce llvm::sys::getProcessTriple() function.	2013-01-16 17:27:22 +00:00
lit.site.cfg.in	Introduce llvm::sys::getProcessTriple() function.	2013-01-16 17:27:22 +00:00
Makefile	Introduce llvm::sys::getProcessTriple() function.	2013-01-16 17:27:22 +00:00
Makefile.tests
TestRunner.sh