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llvm-mirror/lib
Tim Northover c9a7e47164 ISelDAG: spot chain cycles involving MachineNodes
Previously, the DAGISel function WalkChainUsers was spotting that it
had entered already-selected territory by whether a node was a
MachineNode (amongst other things). Since it's fairly common practice
to insert MachineNodes during ISelLowering, this was not the correct
check.

Looking around, it seems that other nodes get their NodeId set to -1
upon selection, so this makes sure the same thing happens to all
MachineNodes and uses that characteristic to determine whether we
should stop looking for a loop during selection.

This should fix PR15840.

llvm-svn: 191165
2013-09-22 08:21:56 +00:00
..
Analysis Fix a constant folding address space place I missed. 2013-09-17 23:23:16 +00:00
AsmParser Implement function prefix data as an IR feature. 2013-09-16 01:08:15 +00:00
Bitcode Implement function prefix data as an IR feature. 2013-09-16 01:08:15 +00:00
CodeGen ISelDAG: spot chain cycles involving MachineNodes 2013-09-22 08:21:56 +00:00
DebugInfo Revert r191062; the build break was also fixed in a different (incompatible) way in r191060. 2013-09-20 01:24:10 +00:00
ExecutionEngine Revert "llvm-c: Add LLVMGetPointerToFunction" 2013-09-20 07:00:36 +00:00
IR Revert "Encapsulate PassManager debug flags to avoid static init and cxa_exit." 2013-09-19 06:02:43 +00:00
IRReader
Linker Implement function prefix data as an IR feature. 2013-09-16 01:08:15 +00:00
MC ELF: Parse types in directives like binutils gas 2013-09-21 05:25:12 +00:00
Object ELF: Add support for the exclude section bit for gas compat. 2013-09-15 19:53:20 +00:00
Option Fix another mistake in r190442. 2013-09-10 23:22:56 +00:00
Support DebugInfo: GDBIndexEntry*String conversion functions now return const char* for easy llvm::formating 2013-09-20 00:33:15 +00:00
TableGen Add an error check for a typo I accidentally made in a td file that caused an assert to fire. 2013-08-20 04:22:09 +00:00
Target ISelDAG: spot chain cycles involving MachineNodes 2013-09-22 08:21:56 +00:00
Transforms SROA: Handle casts involving vectors of pointers and integer scalars. 2013-09-21 20:36:04 +00:00
CMakeLists.txt
LLVMBuild.txt
Makefile