Peter Collingbourne 5b721561aa DI: Reverse direction of subprogram -> function edge. ... Previously, subprograms contained a metadata reference to the function they described. Because most clients need to get or set a subprogram for a given function rather than the other way around, this created unneeded inefficiency. For example, many passes needed to call the function llvm::makeSubprogramMap() to build a mapping from functions to subprograms, and the IR linker needed to fix up function references in a way that caused quadratic complexity in the IR linking phase of LTO. This change reverses the direction of the edge by storing the subprogram as function-level metadata and removing DISubprogram's function field. Since this is an IR change, a bitcode upgrade has been provided. Fixes PR23367. An upgrade script for textual IR for out-of-tree clients is attached to the PR. Differential Revision: http://reviews.llvm.org/D14265 llvm-svn: 252219		2015-11-05 22:03:56 +00:00
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2007-01-15-llvm.used.ll	Filecheckize some tests.	2013-08-23 00:23:28 +00:00
2010-06-30-StripDebug.ll	DI: Reverse direction of subprogram -> function edge.	2015-11-05 22:03:56 +00:00
2010-08-25-crash.ll	DI: Reverse direction of subprogram -> function edge.	2015-11-05 22:03:56 +00:00
block-address.ll	Tests: rewrite 'opt ... %s' to 'opt ... < %s' so that opt does not emit a ModuleID	2013-01-01 13:57:25 +00:00
strip-dead-debug-info.ll	DI: Reverse direction of subprogram -> function edge.	2015-11-05 22:03:56 +00:00