llvm-project/llvm/test/Instrumentation/DataFlowSanitizer
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
..
Inputs DebugInfo+DFSan: Ensure that debug info references to llvm::Functions remain pointing to the underlying function when wrappers are created 2014-10-07 22:59:46 +00:00
abilist.ll [opaque pointer type] Add textual IR support for explicit type parameter for global aliases 2015-09-11 03:22:04 +00:00
args-unreachable-bb.ll Add target triples to all dfsan tests. 2014-12-05 22:32:30 +00:00
arith.ll Add target triples to all dfsan tests. 2014-12-05 22:32:30 +00:00
call.ll Add target triples to all dfsan tests. 2014-12-05 22:32:30 +00:00
debug-nonzero-labels.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
debug.ll DI: Reverse direction of subprogram -> function edge. 2015-11-05 22:03:56 +00:00
load.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
memset.ll Add target triples to all dfsan tests. 2014-12-05 22:32:30 +00:00
prefix-rename.ll [opaque pointer type] Add textual IR support for explicit type parameter for global aliases 2015-09-11 03:22:04 +00:00
store.ll [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
union-large.ll Add target triples to all dfsan tests. 2014-12-05 22:32:30 +00:00
union.ll Add target triples to all dfsan tests. 2014-12-05 22:32:30 +00:00