llvm/lib
Chandler Carruth f5701e4282 [SROA] Thread the ability to add a pointer-specific name prefix through
the pointer adjustment code. This is the primary code path that creates
totally new instructions in SROA and being able to lump them based on
the pointer value's name for which they were created causes
*significantly* fewer name collisions and general noise in the debug
output. This is particularly significant because it is making it much
harder to track down instability in the output of SROA, as name
de-duplication is a totally harmless form of instability that gets in
the way of seeing real problems.

The new fancy naming scheme tries to dig out the root "pre-SROA" name
for pointer values and associate that all the way through the pointer
formation instructions. Digging out the root is important to prevent the
multiple iterative rounds of SROA from just layering too much cruft on
top of cruft here. We already track the layers of SROAs iteration in the
alloca name prefix. We don't need to duplicate it here.

Should have no functionality change, and shouldn't have any really
measurable impact on NDEBUG builds, as most of the complex logic is
debug-only.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202139 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-25 11:19:56 +00:00
..
Analysis Make some DataLayout pointers const. 2014-02-24 23:12:18 +00:00
AsmParser [ms-cxxabi] Add a new calling convention that swaps 'this' and 'sret' 2014-01-31 17:41:22 +00:00
Bitcode Replace the F_Binary flag with a F_Text one. 2014-02-24 18:20:12 +00:00
CodeGen Fix typos 2014-02-25 04:21:15 +00:00
DebugInfo llvm-dwarfdump: Support for debug_line.dwo section for file names for type units under fission. 2014-02-24 23:58:54 +00:00
ExecutionEngine move getNameWithPrefix and getSymbol to TargetMachine. 2014-02-19 20:30:41 +00:00
IR Replace the F_Binary flag with a F_Text one. 2014-02-24 18:20:12 +00:00
IRReader Make parseBitcodeFile return an ErrorOr<Module *>. 2014-01-15 01:08:23 +00:00
LineEditor Avoid using EL_GETFP. 2014-02-04 20:04:46 +00:00
Linker Set the SuppressWarnings option on tool level and propagate to the library. 2014-02-20 22:19:24 +00:00
LTO Replace the F_Binary flag with a F_Text one. 2014-02-24 18:20:12 +00:00
MC Reuse constants for COFF string table entry offsets 2014-02-25 09:50:40 +00:00
Object MC: Support COFF string tables larger than 10MB 2014-02-22 16:12:20 +00:00
Option Avoid buffer copies when a Twine already is a StringRef. 2013-12-03 18:18:28 +00:00
Support Replace the F_Binary flag with a F_Text one. 2014-02-24 18:20:12 +00:00
TableGen Replace the F_Binary flag with a F_Text one. 2014-02-24 18:20:12 +00:00
Target Fix typos 2014-02-25 04:21:15 +00:00
Transforms [SROA] Thread the ability to add a pointer-specific name prefix through 2014-02-25 11:19:56 +00:00
CMakeLists.txt Introduce line editor library. 2014-01-31 23:46:14 +00:00
LLVMBuild.txt Introduce line editor library. 2014-01-31 23:46:14 +00:00
Makefile Introduce line editor library. 2014-01-31 23:46:14 +00:00