Juergen Ributzka b49ee78320 [CodeGenPrepare] Split branch conditions into multiple conditional branches. ... This optimization transforms code like: bb1: %0 = icmp ne i32 %a, 0 %1 = icmp ne i32 %b, 0 %or.cond = or i1 %0, %1 br i1 %or.cond, label %TrueBB, label %FalseBB into a multiple branch instructions like: bb1: %0 = icmp ne i32 %a, 0 br i1 %0, label %TrueBB, label %bb2 bb2: %1 = icmp ne i32 %b, 0 br i1 %1, label %TrueBB, label %FalseBB This optimization is already performed by SelectionDAG, but not by FastISel. FastISel cannot perform this optimization, because it cannot generate new MachineBasicBlocks. Performing this optimization at CodeGenPrepare time makes it available to both - SelectionDAG and FastISel - and the implementation in SelectiuonDAG could be removed. There are currenty a few differences in codegen for X86 and PPC, so this commmit only enables it for FastISel. Reviewed by Jim Grosbach This fixes rdar://problem/19034919. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@223786 91177308-0d34-0410-b5e6-96231b3b80d8		2014-12-09 16:36:13 +00:00
..
Analysis	BFI: Saturate when combining edges to a successor	2014-12-05 19:13:42 +00:00
Assembler	Reland r223754	2014-12-09 05:56:09 +00:00
Bindings	[OCaml] Move Llvm.clone_module to its own Llvm_transform_utils module.	2014-12-01 19:50:39 +00:00
Bitcode	IR: Fix bitcode compatability filenames	2014-12-08 00:41:39 +00:00
BugPoint
CodeGen	[CodeGenPrepare] Split branch conditions into multiple conditional branches.	2014-12-09 16:36:13 +00:00
DebugInfo	Fix a bug when pretty-printing DW_OP_deref.	2014-12-05 18:19:38 +00:00
ExecutionEngine	Small model and JIT generally don't go well with each other.	2014-11-25 17:14:22 +00:00
Feature	IR: Disallow function-local metadata attachments	2014-12-06 02:29:44 +00:00
FileCheck
Instrumentation	InstrProf: An intrinsic and lowering for instrumentation based profiling	2014-12-08 18:02:35 +00:00
Integer
JitListener
Linker	Lazily link GlobalVariables and GlobalAliases.	2014-12-08 18:45:16 +00:00
LTO	Lazily link GlobalVariables and GlobalAliases.	2014-12-08 18:45:16 +00:00
MC	Fix modified immediate bug reported by MC Hammer.	2014-12-09 13:14:58 +00:00
Object	Add missing test file	2014-12-04 09:20:13 +00:00
Other
SymbolRewriter
TableGen
tools	Re-add support to llvm-objdump for Mach-O universal files and archives with -macho	2014-12-04 23:56:27 +00:00
Transforms	Removal Of Duplicate Test Cases and Addition Of Missing Check Statements	2014-12-09 10:46:38 +00:00
Unit
Verifier	[Statepoints 1/4] Statepoint infrastructure for garbage collection: IR Intrinsics	2014-12-01 21:18:12 +00:00
YAMLParser
.clang-format
CMakeLists.txt	Revert "Add missing test dependency and use a more canonical target name."	2014-12-04 04:33:32 +00:00
lit.cfg	[OCaml] [cmake] Add CMake buildsystem for OCaml.	2014-12-01 19:50:23 +00:00
lit.site.cfg.in
Makefile
Makefile.tests
TestRunner.sh