Richard Sandiford 299fdd814f [SystemZ] Add TM and TMY ... The main complication here is that TM and TMY (the memory forms) set CC differently from the register forms. When the tested bits contain some 0s and some 1s, the register forms set CC to 1 or 2 based on the value the uppermost bit. The memory forms instead set CC to 1 regardless of the uppermost bit. Until now, I've tried to make it so that a branch never tests for an impossible CC value. E.g. NR only sets CC to 0 or 1, so branches on the result will only test for 0 or 1. Originally I'd tried to do the same thing for TM and TMY by using custom matching code in ISelDAGToDAG. That ended up being very ugly though, and would have meant duplicating some of the chain checks that the common isel code does. I've therefore gone for the simpler alternative of adding an extra operand to the TM DAG opcode to say whether a memory form would be OK. This means that the inverse of a "TM;JE" is "TM;JNE" rather than the more precise "TM;JNLE", just like the inverse of "TMLL;JE" is "TMLL;JNE". I suppose that's arguably less confusing though... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190400 91177308-0d34-0410-b5e6-96231b3b80d8		2013-09-10 10:20:32 +00:00
..
Analysis
Assembler	Remove verifier check that attribute 'builtin' is only applied to calls to	2013-09-07 00:25:48 +00:00
Bindings/Ocaml
Bitcode	Revert patches to add case-range support for PR1255.	2013-09-09 19:14:35 +00:00
BugPoint
CodeGen	[SystemZ] Add TM and TMY	2013-09-10 10:20:32 +00:00
DebugInfo	MCObjectFileInfo.cpp: Fix a couple of possible typo(s), s/DwarfPub/DwarfGnuPub/, in r190344.	2013-09-10 06:01:56 +00:00
ExecutionEngine	llvm interpreter: select, shuffle and insertelement instructions.	2013-09-02 06:40:09 +00:00
Feature
FileCheck
Instrumentation	Debug Info Testing: update context from empty string to null.	2013-09-08 03:11:54 +00:00
Integer
JitListener	Debug Info Testing: updated to use NULL instead of "i32 0" in a few fields.	2013-09-06 21:03:58 +00:00
Linker	Debug Info: In DIBuilder, the context fields of a TAG_inheritance and a	2013-09-09 23:07:58 +00:00
MC	[SystemZ] Add TM and TMY	2013-09-10 10:20:32 +00:00
Object
Other
TableGen
tools	Print string value for DT_RPATH and DT_RUNPATH.	2013-09-03 17:13:53 +00:00
Transforms	Don't shrink atomic ops to bool in GlobalOpt.	2013-09-09 22:00:13 +00:00
Unit
Verifier
YAMLParser
CMakeLists.txt
lit.cfg	Restore llvm-ranlib expansion in RUN-lines removed in r184019	2013-08-30 12:53:22 +00:00
lit.site.cfg.in
Makefile
Makefile.tests
TestRunner.sh