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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 |
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| .. | ||
| 2003-04-25-AssertFail.ll | ||
| 2003-05-12-PreheaderExitOfChild.ll | ||
| 2003-08-15-PreheadersFail.ll | ||
| 2003-12-10-ExitBlocksProblem.ll | ||
| 2004-02-05-DominatorInfoCorruption.ll | ||
| 2004-03-15-IncorrectDomUpdate.ll | ||
| 2004-04-01-IncorrectDomUpdate.ll | ||
| 2004-04-12-LoopSimplify-SwitchBackedges.ll | ||
| 2004-04-13-LoopSimplifyUpdateDomFrontier.ll | ||
| 2007-10-28-InvokeCrash.ll | ||
| 2010-07-15-IncorrectDomFrontierUpdate.ll | ||
| 2010-12-26-PHIInfiniteLoop.ll | ||
| 2011-12-14-LandingpadHeader.ll | ||
| 2012-03-20-indirectbr.ll | ||
| ashr-crash.ll | ||
| basictest.ll | ||
| dbg-loc.ll | ||
| dup-preds.ll | ||
| hardertest.ll | ||
| indirectbr-backedge.ll | ||
| indirectbr.ll | ||
| merge-exits.ll | ||
| notify-scev.ll | ||
| phi-node-simplify.ll | ||
| preserve-scev.ll | ||
| single-backedge.ll | ||
| unreachable-loop-pred.ll | ||