Quentin Colombet 637582eaf7 When code size is the priority (Oz, MinSize attribute), help llvm ... turning a code like this: if (foo) free(foo) into that: free(foo) Move a call to free from basic block FB into FB's predecessor, P, when the path from P to FB is taken only if the argument of free is not equal to NULL. Some restrictions apply on P and FB to be sure that this code motion is profitable. Namely: 1. FB must have only one predecessor P. 2. FB must contain only the call to free plus an unconditional branch to S. 3. P's successors are FB and S. Because of 1., we will not increase the code size when moving the call to free from FB to P. Because of 2., FB will be empty after the move. Because of 2. and 3., P's branch instruction becomes useless, so as FB (simplifycfg will do the job). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171762 91177308-0d34-0410-b5e6-96231b3b80d8		2013-01-07 18:37:41 +00:00
..
ADT	Whitespace.	2013-01-05 05:16:53 +00:00
Analysis	Move CallGraphSCCPass.h into the Analysis tree; that's where the	2013-01-07 15:26:48 +00:00
Assembly
Bitcode
CodeGen	CallingConvLower.h: Use bitfields like unsigned:1 instead of bool:1 .	2013-01-07 11:13:51 +00:00
Config
DebugInfo
ExecutionEngine
IR	Move TypeFinder.h into the IR tree, it clearly belongs with the IR library.	2013-01-07 15:43:51 +00:00
MC	Add section information for the DWARF5 split debug proposal	2013-01-04 17:59:22 +00:00
Object	[Object][ELF] Fix incorrect size of members for the 64 version of Elf_Phdr_Impl.	2013-01-06 03:57:11 +00:00
Option
Support	When code size is the priority (Oz, MinSize attribute), help llvm	2013-01-07 18:37:41 +00:00
TableGen	Simplify TableGen type-compatibility checks.	2013-01-07 02:30:19 +00:00
Target	Sink AddrMode back into TargetLowering, removing one of the most	2013-01-07 15:14:13 +00:00
Transforms	Move CallGraphSCCPass.h into the Analysis tree; that's where the	2013-01-07 15:26:48 +00:00
AutoUpgrade.h
CMakeLists.txt	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
DebugInfo.h	PR14759: Debug info support for C++ member pointers.	2013-01-07 05:51:15 +00:00
DIBuilder.h	PR14759: Debug info support for C++ member pointers.	2013-01-07 05:51:15 +00:00
GVMaterializer.h
InitializePasses.h	Switch TargetTransformInfo from an immutable analysis pass that requires	2013-01-07 01:37:14 +00:00
InstVisitor.h	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
LinkAllPasses.h	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
LinkAllVMCore.h	Move all of the header files which are involved in modelling the LLVM IR	2013-01-02 11:36:10 +00:00
Linker.h
Pass.h
PassAnalysisSupport.h
PassManager.h
PassManagers.h
PassRegistry.h
PassSupport.h