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llvm-6502/test/DebugInfo
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David Blaikie f93662d3d5 DebugInfo: Use distinct inlinedAt MDLocations to avoid separate inlined calls being coalesced 
When two calls from the same MDLocation are inlined they currently get
treated as one inlined function call (creating difficulty debugging,
duplicate variables, etc).

Clang worked around this by including column information on inline calls
which doesn't address LTO inlining or calls to the same function from
the same line and column (such as through a macro). It also didn't
address ctor and member function calls.

By making the inlinedAt locations distinct, every call site has an
explicitly distinct location that cannot be coalesced with any other
call.

This can produce linearly (2x in the worst case where every call is
inlined and the call instruction has a non-call instruction at the same
location) more debug locations. Any increase beyond that are in cases
where the Clang workaround was insufficient and the new scheme is
creating necessary distinct nodes that were being erroneously coalesced
previously.

After this change to LLVM the incomplete workarounds in Clang. That
should reduce the number of debug locations (in a build without column
info, the default on Darwin, not the default on Linux) by not creating
pseudo-distinct locations for every call to an inline function.

(oh, and I made the inlined-at chain rebuilding iterative instead of
recursive because I was having trouble wrapping my head around it the
way it was - open to discussion on the right design for that function
(including going back to a recursive solution))

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226736 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-21 22:57:29 +00:00
..
AArch64 Remove support for DIVariable's FlagIndirectVariable and expect 2015-01-19 17:57:29 +00:00
ARM Remove support for DIVariable's FlagIndirectVariable and expect 2015-01-19 17:57:29 +00:00
COFF IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
Inputs IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
Mips IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
PowerPC IR: Make metadata typeless in assembly 2014-12-15 19:07:53 +00:00
Sparc IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
SystemZ IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
X86 Reapply: Teach SROA how to update debug info for fragmented variables. 2015-01-20 19:42:22 +00:00
2009-10-16-Phi.ll IR: Make metadata typeless in assembly 2014-12-15 19:07:53 +00:00
2009-11-03-InsertExtractValue.ll IR: Make metadata typeless in assembly 2014-12-15 19:07:53 +00:00
2009-11-05-DeadGlobalVariable.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
2009-11-06-NamelessGlobalVariable.ll IR: Make metadata typeless in assembly 2014-12-15 19:07:53 +00:00
2009-11-10-CurrentFn.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
2010-01-05-DbgScope.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
2010-03-12-llc-crash.ll IR: Make metadata typeless in assembly 2014-12-15 19:07:53 +00:00
2010-03-19-DbgDeclare.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
2010-03-24-MemberFn.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
2010-03-30-InvalidDbgInfoCrash.ll IR: Make metadata typeless in assembly 2014-12-15 19:07:53 +00:00
2010-04-06-NestedFnDbgInfo.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
2010-04-19-FramePtr.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
2010-05-03-DisableFramePtr.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
2010-05-03-OriginDIE.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
2010-05-10-MultipleCU.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
2010-06-29-InlinedFnLocalVar.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
2010-07-19-Crash.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
2010-10-01-crash.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
arm-relocs.test Add support for the R_ARM_ABS32 relocation. 2014-04-03 02:27:00 +00:00
array.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
block-asan.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
bug_null_debuginfo.ll IR: Make metadata typeless in assembly 2014-12-15 19:07:53 +00:00
constant-pointers.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
cross-cu-inlining.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
cross-cu-linkonce-distinct.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
cross-cu-linkonce.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
cu-range-hole.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
cu-ranges.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
dead-argument-order.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
debug-info-always-inline.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
debug-info-qualifiers.ll Remove support for DIVariable's FlagIndirectVariable and expect 2015-01-19 17:57:29 +00:00
debuginfofinder-multiple-cu.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
debuglineinfo.test Add DIContext::getLineInfoForAddressRange() function and test. This function allows a caller to obtain a table of line information for a function using the function's address and size. 2013-01-26 00:28:05 +00:00
duplicate_inline.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
dwarf-public-names.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
dwarfdump-accel.test Reapply "[dwarfdump] Add support for dumping accelerator tables." 2014-11-14 16:15:53 +00:00
dwarfdump-debug-frame-simple.test Previously, parsing capability of the .debug_frame section was added 2013-02-21 22:53:19 +00:00
dwarfdump-debug-loc-simple.test Spell correct (s/begining/beginning/) 2013-06-19 21:42:05 +00:00
dwarfdump-dump-flags.test Add command-line flags for DWARF dumping. 2013-01-25 20:26:43 +00:00
dwarfdump-line-dwo.test llvm-dwarfdump: Support for debug_line.dwo section for file names for type units under fission. 2014-02-24 23:58:54 +00:00
dwarfdump-objc.test [dwarfdump] Prettyprint DW_AT_APPLE_property_attribute bitfield values. 2014-10-10 15:51:10 +00:00
dwarfdump-pubnames.test DebugInfo: Make pubnames header printing similar to unit header printing 2013-11-01 17:53:30 +00:00
dwarfdump-ranges.test [dwarfdump] Dump DW_AT_ranges values inline in the debug_info dump. 2014-10-23 04:08:34 +00:00
dwarfdump-type-units.test llvm-dwarfdump: support for emitting only the debug_types section using -debug-dump 2013-11-19 00:29:42 +00:00
dwarfdump-zlib.test Kill symbolization functionality in llvm-dwarfdump. We have llvm-symbolizer for that. 2014-05-19 18:45:32 +00:00
empty.ll IR: Make metadata typeless in assembly 2014-12-15 19:07:53 +00:00
enum-types.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
enum.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
global.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
gmlt.test test: XFAIL the non-darwin gmlt test on darwin 2014-10-01 05:45:45 +00:00
incorrect-variable-debugloc1.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
incorrect-variable-debugloc.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
inheritance.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
inline-debug-info-multiret.ll DebugInfo: Use distinct inlinedAt MDLocations to avoid separate inlined calls being coalesced 2015-01-21 22:57:29 +00:00
inline-debug-info.ll DebugInfo: Use distinct inlinedAt MDLocations to avoid separate inlined calls being coalesced 2015-01-21 22:57:29 +00:00
inline-no-debug-info.ll DebugInfo: Use distinct inlinedAt MDLocations to avoid separate inlined calls being coalesced 2015-01-21 22:57:29 +00:00
inline-scopes.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
inlined-arguments.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
inlined-vars.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
llvm-symbolizer-zlib.test Kill symbolization functionality in llvm-dwarfdump. We have llvm-symbolizer for that. 2014-05-19 18:45:32 +00:00
llvm-symbolizer.test Remove "REQUIRES:shell" from tests. They work for me. 2014-11-04 13:41:33 +00:00
location-verifier.ll DebugLocs without a scope should fail the verification. 2015-01-20 22:37:25 +00:00
lto-comp-dir.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
member-order.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
member-pointers.ll IR: Make metadata typeless in assembly 2014-12-15 19:07:53 +00:00
member-pointers.o Revert "Revert "DI: Fold constant arguments into a single MDString"" 2014-10-03 20:01:09 +00:00
missing-abstract-variable.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
missing-abstract-variable.o Revert "Revert "DI: Fold constant arguments into a single MDString"" 2014-10-03 20:01:09 +00:00
multiline.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
namespace_function_definition.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
namespace_inline_function_definition.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
namespace.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
nodebug.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
piece-verifier.ll Make DIExpression::Verify() stricter by checking that the number of 2015-01-21 00:59:20 +00:00
PR20038.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
restrict.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
sugared-constants.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
template-recursive-void.ll IR: Make metadata typeless in assembly 2014-12-15 19:07:53 +00:00
tu-composite.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
tu-member-pointer.ll IR: Make metadata typeless in assembly 2014-12-15 19:07:53 +00:00
two-cus-from-same-file.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
typedef.ll IR: Make metadata typeless in assembly 2014-12-15 19:07:53 +00:00
unconditional-branch.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
varargs.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00
version.ll IR: Move MDLocation into place 2015-01-14 22:27:36 +00:00