llvm-project/llvm/unittests
Duncan P. N. Exon Smith 62e0f454a0 DebugInfo: Remove 'inlinedAt:' field from MDLocalVariable
Remove 'inlinedAt:' from MDLocalVariable.  Besides saving some memory
(variables with it seem to be single largest `Metadata` contributer to
memory usage right now in -g -flto builds), this stops optimization and
backend passes from having to change local variables.

The 'inlinedAt:' field was used by the backend in two ways:

 1. To tell the backend whether and into what a variable was inlined.
 2. To create a unique id for each inlined variable.

Instead, rely on the 'inlinedAt:' field of the intrinsic's `!dbg`
attachment, and change the DWARF backend to use a typedef called
`InlinedVariable` which is `std::pair<MDLocalVariable*, MDLocation*>`.
This `DebugLoc` is already passed reliably through the backend (as
verified by r234021).

This commit removes the check from r234021, but I added a new check
(that will survive) in r235048, and changed the `DIBuilder` API in
r235041 to require a `!dbg` attachment whose 'scope:` is in the same
`MDSubprogram` as the variable's.

If this breaks your out-of-tree testcases, perhaps the script I used
(mdlocalvariable-drop-inlinedat.sh) will help; I'll attach it to PR22778
in a moment.

llvm-svn: 235050
2015-04-15 22:29:27 +00:00
..
ADT Use 'override/final' instead of 'virtual' for overridden methods 2015-04-11 02:11:45 +00:00
Analysis Make getModRefInfo with a default location not crash. 2015-04-13 23:05:45 +00:00
Bitcode [cleanup] Re-sort all the #include lines in LLVM using 2015-01-14 11:23:27 +00:00
CodeGen [cleanup] Re-sort all the #include lines in LLVM using 2015-01-14 11:23:27 +00:00
DebugInfo Purge unused includes throughout libSupport. 2015-03-23 18:07:13 +00:00
ExecutionEngine Use 'override/final' instead of 'virtual' for overridden methods 2015-04-11 02:11:45 +00:00
IR DebugInfo: Remove 'inlinedAt:' field from MDLocalVariable 2015-04-15 22:29:27 +00:00
LineEditor Use 'override/final' instead of 'virtual' for overridden methods 2015-04-11 02:11:45 +00:00
Linker Use 'override/final' instead of 'virtual' for overridden methods 2015-04-11 02:11:45 +00:00
MC [cleanup] Re-sort all the #include lines in LLVM using 2015-01-14 11:23:27 +00:00
Option Retire llvm::array_endof in favor of non-member std::end. 2014-04-12 16:15:53 +00:00
ProfileData InstrProf: Don't combine expansion regions with code regions 2015-02-18 19:01:06 +00:00
Support Add raw_pwrite_stream type. 2015-04-14 15:00:34 +00:00
Transforms DebugInfo: Require a DebugLoc in DIBuilder::insertDeclare() 2015-04-15 21:18:07 +00:00
CMakeLists.txt InstrProf: Add some unit tests for CoverageMapping 2015-02-04 00:15:12 +00:00
Makefile InstrProf: Add some unit tests for CoverageMapping 2015-02-04 00:15:12 +00:00
Makefile.unittest With rpaths being set correctly, SHLIBPATH_VAR is not needed anymore. 2014-02-28 16:16:51 +00:00