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llvm-mirror/test/DebugInfo/AArch64
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
big-endian.ll DI: Disallow uniquable DICompileUnits 2015-08-03 17:26:41 +00:00
bitfields.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
coalescing.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
dwarfdump.ll DI: Reverse direction of subprogram -> function edge. 2015-11-05 22:03:56 +00:00
eh_frame_personality.ll Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
eh_frame.s
frameindices.ll DI: Reverse direction of subprogram -> function edge. 2015-11-05 22:03:56 +00:00
lit.local.cfg
little-endian-dump.ll
processes-relocations.ll
prologue_end.ll DI: Reverse direction of subprogram -> function edge. 2015-11-05 22:03:56 +00:00
struct_by_value.ll DI: Reverse direction of subprogram -> function edge. 2015-11-05 22:03:56 +00:00