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988b78a846
llvm-6502/test/DebugInfo/X86
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Adrian Prantl 988b78a846 This reapplies r207235 with an additional bugfixes caught by the msan 
buildbot - do not insert debug intrinsics before phi nodes.

Debug info for optimized code: Support variables that are on the stack and
described by DBG_VALUEs during their lifetime.

Previously, when a variable was at a FrameIndex for any part of its
lifetime, this would shadow all other DBG_VALUEs and only a single
fbreg location would be emitted, which in fact is only valid for a small
range and not the entire lexical scope of the variable. The included
dbg-value-const-byref testcase demonstrates this.

This patch fixes this by
Local
- emitting dbg.value intrinsics for allocas that are passed by reference
- dropping all dbg.declares (they are now fully lowered to dbg.values)
SelectionDAG
- renamed constructors for SDDbgValue for better readability.
- fix UserValue::match() to handle indirect values correctly
- not inserting an MMI table entries for dbg.values that describe allocas.
- lowering dbg.values that describe allocas into *indirect* DBG_VALUEs.
CodeGenPrepare
- leaving dbg.values for an alloca were they are (see comment)
Other
- regenerated/updated instcombine.ll testcase and included source

rdar://problem/16679879
http://reviews.llvm.org/D3374

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207269 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-25 20:49:25 +00:00
..
2010-04-13-PubType.ll Debug Info: update testing cases to specify the debug info version number. 2013-11-22 21:49:45 +00:00
2010-08-10-DbgConstant.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
2011-09-26-GlobalVarContext.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
2011-12-16-BadStructRef.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
aligned_stack_var.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
arange.ll Disable emission of aranges by default and add a command line 2014-02-14 01:26:55 +00:00
arguments.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
array.ll This reapplies r207235 with an additional bugfixes caught by the msan 2014-04-25 20:49:25 +00:00
block-capture.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
byvalstruct.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
c-type-units.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
coff_debug_info_type.ll MC: honour IMAGE_SCN_CNT_INITIALIZED_DATA 2014-04-23 21:29:34 +00:00
coff_relative_names.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
concrete_out_of_line.ll Re-apply r206096 after investigating the gdb buildbot failure. 2014-04-14 21:16:04 +00:00
cu-ranges-odr.ll If we're only emitting line tables for a particular CU then don't add 2014-02-27 01:25:00 +00:00
cu-ranges.ll Reapply DW_AT_low/high_pc patch: 2014-03-20 19:16:16 +00:00
data_member_location.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
dbg_value_direct.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
dbg-at-specficiation.ll Debug Info: update testing cases to specify the debug info version number. 2013-11-22 21:49:45 +00:00
dbg-byval-parameter.ll Reland r200340 - 'Add line table debug info to COFF files when using a win32 triple' 2014-01-30 01:39:17 +00:00
dbg-const-int.ll Debug Info: update testing cases to specify the debug info version number. 2013-11-22 21:49:45 +00:00
dbg-const.ll Debug info: Store the DIVariable in DebugLocEntry also for constants, 2014-04-11 17:49:47 +00:00
dbg-declare-arg.ll Debug Info: update testing cases to specify the debug info version number. 2013-11-22 21:49:45 +00:00
dbg-declare.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
dbg-file-name.ll Debug Info: update testing cases to specify the debug info version number. 2013-11-22 21:49:45 +00:00
dbg-i128-const.ll Debug Info: update testing cases to specify the debug info version number. 2013-11-22 21:49:45 +00:00
dbg-large-unsigned-const.ll Add some CHECKs to this testcase. 2014-04-11 18:08:37 +00:00
dbg-merge-loc-entry.ll Add a DIELoc class to cover the DW_FORM_exprloc set of expressions 2014-02-16 08:46:55 +00:00
dbg-prolog-end.ll Debug Info: update testing cases to specify the debug info version number. 2013-11-22 21:49:45 +00:00
dbg-subrange.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
dbg-value-const-byref.ll This reapplies r207235 with an additional bugfixes caught by the msan 2014-04-25 20:49:25 +00:00
dbg-value-dag-combine.ll Debug Info: update testing cases to specify the debug info version number. 2013-11-22 21:49:45 +00:00
dbg-value-inlined-parameter.ll Remove unnecessary test for Darwin and update testcase to be a little less 2014-03-07 23:07:21 +00:00
dbg-value-isel.ll Debug Info: update testing cases to specify the debug info version number. 2013-11-22 21:49:45 +00:00
dbg-value-location.ll Remove unnecessary test for Darwin and update testcase to be a little less 2014-03-07 23:07:21 +00:00
dbg-value-range.ll Debug Info: update testing cases to specify the debug info version number. 2013-11-22 21:49:45 +00:00
dbg-value-terminator.ll Debug Info: update testing cases to specify the debug info version number. 2013-11-22 21:49:45 +00:00
debug_frame.ll Debug Info: update testing cases to specify the debug info version number. 2013-11-22 21:49:45 +00:00
debug-info-block-captured-self.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
debug-info-blocks.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
debug-info-static-member.ll Use DW_AT_linkage_name when we're emitting DWARF4 or above. 2014-03-13 23:26:25 +00:00
debug-loc-offset.ll Reapply DW_AT_low/high_pc patch: 2014-03-20 19:16:16 +00:00
decl-derived-member.ll decl-derived-member.ll: Try to unbreak. Don't add -mtriple to %llc_dwarf. 2014-03-12 23:08:19 +00:00
discriminator.ll Use a fixed subtarget for test so atom scheduling can't change the addresses this test relies on. 2014-03-15 23:01:29 +00:00
DW_AT_byte_size.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
DW_AT_linkage_name.ll Re-apply r206096 after investigating the gdb buildbot failure. 2014-04-14 21:16:04 +00:00
DW_AT_location-reference.ll Fix llvm-objdump crash. 2014-04-03 23:20:02 +00:00
DW_AT_object_pointer.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
DW_AT_specification.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
DW_AT_stmt_list_sec_offset.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
DW_TAG_friend.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
dwarf-aranges-no-dwarf-labels.ll Disable emission of aranges by default and add a command line 2014-02-14 01:26:55 +00:00
dwarf-aranges.ll DebugInfo: Improve test to not depend on the specific naming of temporary symbols 2014-03-07 00:23:38 +00:00
dwarf-public-names.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
dwarf-pubnames-split.ll DebugInfo: Refactor emitDebugPubNames/Types into a common implementation 2014-03-11 23:18:15 +00:00
earlydup-crash.ll Debug Info: update testing cases to specify the debug info version number. 2013-11-22 21:49:45 +00:00
elf-names.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
empty-and-one-elem-array.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
empty-array.ll DebugInfo: Use a 64 bit type for the subrange 2014-04-03 06:28:20 +00:00
ending-run.ll Reorder arguments on test command line to make it easier to cut and 2014-03-26 23:10:28 +00:00
enum-class.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
enum-fwd-decl.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
fission-cu.ll DebugInfo: Add GNU_addr_base and GNU_ranges_base only when there are addresses or ranges 2014-03-25 05:34:24 +00:00
fission-hash.ll Turn on hashing by default for split dwarf compile units. 2014-03-12 17:14:43 +00:00
fission-ranges.ll Debug info: Store the DIVariable in DebugLocEntry also for constants, 2014-04-11 17:49:47 +00:00
formal_parameter.ll This reapplies r207235 with an additional bugfixes caught by the msan 2014-04-25 20:49:25 +00:00
generate-odr-hash.ll DebugInfo: Omit DW_AT_addr_base from skeletal type units. 2014-03-21 20:27:21 +00:00
gnu-public-names-empty.ll DebugInfo: Tag units as having been indexed in GNU pubnames by using a DW_AT_GNU_pubnames of DW_FORM_flag(_present) rather than sec_offsets to the pubnames/types sections 2014-03-06 05:47:39 +00:00
gnu-public-names.ll DebugInfo: Tag units as having been indexed in GNU pubnames by using a DW_AT_GNU_pubnames of DW_FORM_flag(_present) rather than sec_offsets to the pubnames/types sections 2014-03-06 05:47:39 +00:00
inline-seldag-test.ll Change argument order and add explanatory comment to r206130 2014-04-14 22:23:06 +00:00
instcombine-instrinsics.ll This reapplies r207235 with an additional bugfixes caught by the msan 2014-04-25 20:49:25 +00:00
lexical_block.ll DebugInfo: Use DW_FORM_data4 for DW_AT_high_pc in DW_TAG_lexical_blocks 2014-03-08 00:58:20 +00:00
line-info.ll Support DWARF discriminators in object streamer. 2014-02-14 19:27:53 +00:00
linkage-name.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
lit.local.cfg [tests] Cleanup initialization of test suffixes. 2013-08-16 00:37:11 +00:00
low-pc-cu.ll Reapply DW_AT_low/high_pc patch: 2014-03-20 19:16:16 +00:00
main-file-name.s Now that llvm-dwarfdump supports flags to specify which DWARF section to dump, 2013-01-25 21:44:53 +00:00
misched-dbg-value.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
multiple-aranges.ll Disable emission of aranges by default and add a command line 2014-02-14 01:26:55 +00:00
multiple-at-const-val.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
nondefault-subrange-array.ll DebugInfo: Use a 64 bit type for the subrange 2014-04-03 06:28:20 +00:00
objc-fwd-decl.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
objc-property-void.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
op_deref.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
parameters.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
pointer-type-size.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
pr11300.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
pr12831.ll Debug Info: update testing cases to specify the debug info version number. 2013-11-22 21:49:45 +00:00
pr13303.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
prologue-stack.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
ref_addr_relocation.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
reference-argument.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
rvalue-ref.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
sret.ll Remove command line option for CU hashing. This is on by default now. 2014-03-14 21:20:07 +00:00
stmt-list-multiple-compile-units.ll DebugInfo: Avoid creating unnecessary/empty line tables and remove the special case of '0' in DwarfCompileUnit::initStmtList by just always using a label difference 2014-04-01 08:07:52 +00:00
stmt-list.ll DebugInfo: Avoid creating unnecessary/empty line tables and remove the special case of '0' in DwarfCompileUnit::initStmtList by just always using a label difference 2014-04-01 08:07:52 +00:00
stringpool.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
struct-loc.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
subrange-type.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
subreg.ll Debug info: Remove ARMAsmPrinter::EmitDwarfRegOp(). AsmPrinter can now 2014-02-27 17:56:08 +00:00
subregisters.ll Debug info: Bugfix for r201190: DW_OP_piece takes bytes, not bits. 2014-02-12 19:34:44 +00:00
template.ll Add a DIELoc class to cover the DW_FORM_exprloc set of expressions 2014-02-16 08:46:55 +00:00
tls.ll DebugInfo: Deduplicate entries in the fission address table 2014-02-15 19:34:03 +00:00
union-template.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
vector.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00
vla.ll DebugInfo: Remove some unneeded conditionals now that DIBuilder no longer emits zero-length arrays as {i32 0} 2014-02-04 01:23:52 +00:00