Chandler Carruth 3b7b209bf8 Fix a devilish miscompile exposed by block placement. The ... updateTerminator code didn't correctly handle EH terminators in one very specific case. AnalyzeBranch would find no terminator instruction, and so the fallback in updateTerminator is to assume fallthrough. This is correct, but the destination of the fallthrough was assumed to be the first successor. This is *almost always* true, but in certain cases the loop transformations will cause the landing pad to be the first successor! Instead of this brittle logic, actually look through the successors for a non-landing-pad accessor, and to assert if more than one is found. This will hopefully fix some (if not all) of the self host miscompiles with block placement. Thanks to Benjamin Kramer for reporting, Nick Lewycky for an initial stab at a reduction, and Duncan for endless advice on EH (which I know nothing about) as well as reviewing the actual fix. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145062 91177308-0d34-0410-b5e6-96231b3b80d8		2011-11-22 13:13:16 +00:00
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Analysis	Fix crasher in GVN due to my recent capture tracking changes.	2011-11-21 19:42:56 +00:00
Archive	build: Add initial cut at LLVMBuild.txt files.	2011-11-03 18:53:17 +00:00
AsmParser	build: Add initial cut at LLVMBuild.txt files.	2011-11-03 18:53:17 +00:00
Bitcode	build: Add initial cut at LLVMBuild.txt files.	2011-11-03 18:53:17 +00:00
CodeGen	Fix a devilish miscompile exposed by block placement. The	2011-11-22 13:13:16 +00:00
DebugInfo	Audited all the format strings in libDebugInfo and fixed those that didn't match the types.	2011-11-05 16:01:13 +00:00
ExecutionEngine	Sink codegen optimization level into MCCodeGenInfo along side relocation model	2011-11-16 08:38:26 +00:00
Linker	build: Add initial cut at LLVMBuild.txt files.	2011-11-03 18:53:17 +00:00
MC	Sink codegen optimization level into MCCodeGenInfo along side relocation model	2011-11-16 08:38:26 +00:00
Object	Object/COFF: Support common symbols.	2011-11-16 23:36:12 +00:00
Support	Add configure checking for pread(2) and use it to save a syscall when reading files.	2011-11-22 12:31:53 +00:00
TableGen	ARM vldm and vstm VFP instructions can take a data type suffix.	2011-11-11 23:08:10 +00:00
Target	Fix shuffle decoding logic to handle UNPCKLPS/UNPCKLPD on 256-bit vectors correctly. Add support for decoding UNPCKHPS/UNPCKHPD for AVX 128-bit and 256-bit forms.	2011-11-22 01:57:35 +00:00
Transforms	Refactor code to use new attribute getters on CallSite for NoCapture and ByVal.	2011-11-20 19:09:04 +00:00
VMCore	Fixing a comment	2011-11-21 04:42:21 +00:00
CMakeLists.txt	Move TableGen's parser and entry point into a library	2011-10-01 16:41:13 +00:00
LLVMBuild.txt	build: Add initial cut at LLVMBuild.txt files.	2011-11-03 18:53:17 +00:00
Makefile	Remove more of llvmc and dependencies.	2011-09-20 00:34:27 +00:00