llvm-project/llvm/test/Transforms/LoopSimplify
Peter Collingbourne d4bff30370 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
..
2003-04-25-AssertFail.ll
2003-05-12-PreheaderExitOfChild.ll
2003-08-15-PreheadersFail.ll [opaque pointer type] Add textual IR support for explicit type parameter to gep operator 2015-03-13 18:20:45 +00:00
2003-12-10-ExitBlocksProblem.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
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 Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
2010-07-15-IncorrectDomFrontierUpdate.ll
2010-12-26-PHIInfiniteLoop.ll
2011-12-14-LandingpadHeader.ll Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
2012-03-20-indirectbr.ll
ashr-crash.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
basictest.ll
dbg-loc.ll DI: Reverse direction of subprogram -> function edge. 2015-11-05 22:03:56 +00:00
dup-preds.ll Verifier: Call verifyModule() from llc and opt 2015-03-27 22:04:28 +00:00
hardertest.ll
indirectbr-backedge.ll
indirectbr.ll
merge-exits.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
notify-scev.ll
phi-node-simplify.ll [opaque pointer type] Add textual IR support for explicit type parameter to gep operator 2015-03-13 18:20:45 +00:00
preserve-scev.ll Make DataLayout Non-Optional in the Module 2015-03-04 18:43:29 +00:00
single-backedge.ll DI: Require subprogram definitions to be distinct 2015-08-28 20:26:49 +00:00
unreachable-loop-pred.ll