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llvm-mirror/test/DebugInfo/ARM
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
..
big-endian-dump.ll IR: Make metadata typeless in assembly 2014-12-15 19:07:53 +00:00
bitfield.ll DI: Disallow uniquable DICompileUnits 2015-08-03 17:26:41 +00:00
cfi-eof-prologue.ll DI: Reverse direction of subprogram -> function edge. 2015-11-05 22:03:56 +00:00
constant-dbgloc.ll DI: Reverse direction of subprogram -> function edge. 2015-11-05 22:03:56 +00:00
float-args.ll DI: Reverse direction of subprogram -> function edge. 2015-11-05 22:03:56 +00:00
header.ll DI: Reverse direction of subprogram -> function edge. 2015-11-05 22:03:56 +00:00
line.test Add ARM test for r227489, but XFAIL because this is actually more work than it appeared to be. 2015-01-30 23:04:39 +00:00
lit.local.cfg Reduce verbiage of lit.local.cfg files 2014-06-09 22:42:55 +00:00
little-endian-dump.ll IR: Make metadata typeless in assembly 2014-12-15 19:07:53 +00:00
lowerbdgdeclare_vla.ll DI: Reverse direction of subprogram -> function edge. 2015-11-05 22:03:56 +00:00
multiple-constant-uses-drops-dbgloc.ll DI: Reverse direction of subprogram -> function edge. 2015-11-05 22:03:56 +00:00
PR16736.ll DI: Reverse direction of subprogram -> function edge. 2015-11-05 22:03:56 +00:00
processes-relocations.ll IR: Make metadata typeless in assembly 2014-12-15 19:07:53 +00:00
prologue_end.ll DI: Reverse direction of subprogram -> function edge. 2015-11-05 22:03:56 +00:00
s-super-register.ll DI: Reverse direction of subprogram -> function edge. 2015-11-05 22:03:56 +00:00
selectiondag-deadcode.ll DI: Reverse direction of subprogram -> function edge. 2015-11-05 22:03:56 +00:00
single-constant-use-preserves-dbgloc.ll DI: Reverse direction of subprogram -> function edge. 2015-11-05 22:03:56 +00:00
tls.ll DI: Disallow uniquable DICompileUnits 2015-08-03 17:26:41 +00:00