Chandler Carruth 0c25726596 [PM] Remove the preverifier and directly compute the DominatorTree for ... the verifier after ensuring the CFG is at least usefully formed. This fixes a number of problems: 1) The PreVerifier was missing the controls the Verifier provides over *how* an invalid module is handled -- it just aborted the program! Now it uses the same logic as the Verifier which is significantly more library-friendly. 2) The DominatorTree used previously could have been cached and not updated due to bugs in prior passes and we would silently use the stale tree. This could cause dominance errors to not be as quickly diagnosed. 3) We can now (in the next patch) pull the functionality of the verifier apart from the pass infrastructure so that you can verify IR without having any form of pass manager. This in turn frees the code to share logic between old and new pass manager variants. Along the way I fixed at least one annoying bug -- the state for 'Broken' wasn't being cleared from run to run causing all functions visited after the first broken function to be marked as broken regardless of whether *they* were a problem. Fortunately, I don't really know much of a way to observe this peculiarity. In case folks are worried about the runtime cost, its negligible. I looked at running the entire regression test suite (which should be a relatively good use of the verifier) before and after but was unable to even measure the time spent on the verifier and there was no regresion from before to after. I checked both with debug builds and optimized builds. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199487 91177308-0d34-0410-b5e6-96231b3b80d8		2014-01-17 10:56:02 +00:00
..
ADT	Add missing definitions of key_type and value_type to DenseSet.	2014-01-08 21:38:04 +00:00
Analysis	Fix PR18449: SCEV needs more precise max BECount for multi-exit loop.	2014-01-15 06:42:11 +00:00
AsmParser	Move the LLVM IR asm writer header files into the IR directory, as they	2014-01-07 12:34:26 +00:00
Bitcode	Make parseBitcodeFile return an ErrorOr<Module *>.	2014-01-15 01:08:23 +00:00
CodeGen	Add FPExt option to CCValAssign::LocInfo. When generating calling-convention	2014-01-14 19:56:36 +00:00
Config	Remove the test for endianness in configure.ac and regenerate.	2014-01-09 01:09:57 +00:00
DebugInfo	llvm-dwarfdump: type unit dwo support	2014-01-09 05:08:24 +00:00
ExecutionEngine	Re-apply r196639: Add support for archives and object file caching under MCJIT.	2014-01-08 04:09:09 +00:00
IR	Report a warning when dropping outdated debug info metadata.	2014-01-16 01:51:12 +00:00
IRReader
LTO	[LTO] Add a hook to map LLVM diagnostics into the clients of LTO.	2014-01-15 22:04:35 +00:00
MC	Add an emitRawComment function and use it to simplify some uses of EmitRawText.	2014-01-16 16:28:37 +00:00
Object	llvm-objdump/COFF: Print DLL name in the export table header.	2014-01-16 20:50:34 +00:00
Option
Support	Use LLVM_EXPLICIT instead of a function pointer as bool.	2014-01-16 23:37:23 +00:00
TableGen	Speling fixes.	2013-10-22 15:18:03 +00:00
Target	WinCOFF: Transform IR expressions featuring __ImageBase into image relative relocations	2014-01-15 09:16:42 +00:00
Transforms	[asan] Remove -fsanitize-address-zero-base-shadow command line	2014-01-16 10:19:12 +00:00
AutoUpgrade.h	Debug Info: drop debug info via upgrading path if version number does not match.	2013-12-02 21:29:56 +00:00
CMakeLists.txt
DebugInfo.h	Re-sort all of the includes with ./utils/sort_includes.py so that	2014-01-07 11:48:04 +00:00
DIBuilder.h	Debug info: Implement (rvalue) reference qualifiers for C++11 non-static	2013-12-18 21:48:19 +00:00
GVMaterializer.h	Use error_code in GVMaterializer.	2013-11-05 19:36:34 +00:00
InitializePasses.h	[PM] Remove the preverifier and directly compute the DominatorTree for	2014-01-17 10:56:02 +00:00
InstVisitor.h	Add addrspacecast instruction.	2013-11-15 01:34:59 +00:00
LinkAllIR.h	[cleanup] Move the Dominators.h and Verifier.h headers into the IR	2014-01-13 09:26:24 +00:00
LinkAllPasses.h	[PM] Simplify the interface exposed for IR printing passes.	2014-01-12 11:30:46 +00:00
Linker.h	Add a 'deleteModule' method to the Linker class.	2013-10-16 08:59:57 +00:00
Pass.h
PassAnalysisSupport.h
PassManager.h	Move the old pass manager infrastructure into a legacy namespace and	2013-11-09 12:26:54 +00:00
PassRegistry.h	Re-sort all of the includes with ./utils/sort_includes.py so that	2014-01-07 11:48:04 +00:00
PassSupport.h	[opt][PassInfo] Allow opt to run passes that need target machine.	2014-01-16 21:44:34 +00:00