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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AddressSanitizer	DI: Reverse direction of subprogram -> function edge.	2015-11-05 22:03:56 +00:00
BoundsChecking	Add a bunch of CHECK missing colons in tests. NFC.	2015-03-14 01:43:57 +00:00
DataFlowSanitizer	DI: Reverse direction of subprogram -> function edge.	2015-11-05 22:03:56 +00:00
InstrProfiling	[PGO] Do not emit runtime hook user function for Linux	2015-10-29 04:08:31 +00:00
MemorySanitizer	DI: Reverse direction of subprogram -> function edge.	2015-11-05 22:03:56 +00:00
SanitizerCoverage	DI: Reverse direction of subprogram -> function edge.	2015-11-05 22:03:56 +00:00
ThreadSanitizer	DI: Require subprogram definitions to be distinct	2015-08-28 20:26:49 +00:00