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e0e599e202
llvm-mirror/test/DebugInfo/X86
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Andrea Di Biagio e0e599e202 [CodeGenPrepare] When moving a zext near to its associated load, do not retain the original debug location. 
CodeGenPrepare knows how to move a zext of a load into the same basic block
where the load lives. The goal is to help ISel match a zero-extending load
instead of two separated instructions.

CGP attempts to move a zext computation even if it lives in a basic block that
does not post-dominate the load's basic block. That means, the hoisted zext may
be speculated. Preserving the zext location would hurt the debugging experience
and the quality of sample pgo.
With this patch, when moving a zext near to its associated load, CGP no longer
propagates the zext's debug location. Instead, CGP conservatively reuses the
same debug location for the load and the zext.

An alternative approach would be to assign an artificial line-0 location to the
zext. However we don't want to over-use the 'line-0' for this particular case
because it would have a size cost in the line-table section for no additional
benefit.

Differential Revision: https://reviews.llvm.org/D25611

llvm-svn: 284377
2016-10-17 11:32:26 +00:00
..
2010-04-13-PubType.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
2011-09-26-GlobalVarContext.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
2011-12-16-BadStructRef.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
abstract_origin.ll Debug Info: Prevent DW_AT_abstract_origin from being emitted twice 2016-05-10 19:38:51 +00:00
aligned_stack_var.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
arange-and-stub.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
arange.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
arguments.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
array2.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
array.ll Local variables whose address is taken and passed on to a call are described 2016-08-15 18:18:26 +00:00
asm-macro-line-number.s IAS: Use the root macro instanciation for location 2015-06-25 21:57:33 +00:00
bbjoin.ll Local variables whose address is taken and passed on to a call are described 2016-08-15 18:18:26 +00:00
bitfields-dwarf4.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
bitfields.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
block-capture.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
byvalstruct.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
c-type-units.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
coff_debug_info_type.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
coff_relative_names.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
concrete_out_of_line.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
constant-aggregate.ll DebugInfo: Remove MDString-based type references 2016-04-23 21:08:00 +00:00
constant-loclist.ll Fix the type signature of DwarfExpression::Add.*Constant to support values >32 bits. 2016-06-24 21:35:09 +00:00
cu-ranges-odr.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
cu-ranges.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
data_member_location.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
dbg_value_direct.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
dbg-asm.s
dbg-byval-parameter.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
dbg-const-int.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
dbg-const.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
dbg-declare-arg.ll Verifier: Verify that each inlinable callsite of a debug-info-bearing function 2016-04-24 22:23:13 +00:00
dbg-declare.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
dbg-file-name.ll Reverting 268054 & 268063 as they caused PR27579. 2016-04-30 01:44:07 +00:00
dbg-i128-const.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
dbg-merge-loc-entry.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
dbg-prolog-end.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
dbg-subrange.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
dbg-value-const-byref.ll Local variables whose address is taken and passed on to a call are described 2016-08-15 18:18:26 +00:00
dbg-value-dag-combine.ll Preserve DebugInfo when replacing values in DAGCombiner 2016-06-23 17:52:57 +00:00
dbg-value-inlined-parameter.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
dbg-value-isel.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
dbg-value-location.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
dbg-value-range.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
dbg-value-regmask-clobber.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
dbg-value-terminator.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
debug_frame.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
debug-dead-local-var.ll Reverting 268054 & 268063 as they caused PR27579. 2016-04-30 01:44:07 +00:00
debug-info-access.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
debug-info-block-captured-self.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
debug-info-blocks.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
debug-info-packed-struct.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
debug-info-static-member.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
debug-loc-asan.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
debug-loc-frame.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
debug-loc-offset.ll DebugInfo: Remove MDString-based type references 2016-04-23 21:08:00 +00:00
debug-macro.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
debug-ranges-offset.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
debugger-tune.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
decl-derived-member.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
deleted-bit-piece.ll DebugInfo: Remove MDString-based type references 2016-04-23 21:08:00 +00:00
DIModule.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
DIModuleContext.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
discriminator2.ll Read discriminators correctly from object file. 2016-04-28 22:09:37 +00:00
discriminator3.ll Read discriminators correctly from object file. 2016-04-28 22:09:37 +00:00
discriminator.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
dllimport.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
DW_AT_byte_size.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
DW_AT_calling-convention.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
DW_AT_linkage_name.ll DebugInfo: Remove MDString-based type references 2016-04-23 21:08:00 +00:00
DW_AT_location-reference.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
DW_AT_object_pointer.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
DW_AT_specification.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
DW_AT_stmt_list_sec_offset.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
dw_op_minus.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
DW_TAG_friend.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
dwarf-aranges-no-dwarf-labels.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
dwarf-aranges.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
dwarf-linkage-names.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
dwarf-public-names.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
dwarf-pubnames-split.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
earlydup-crash.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
elf-names.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
empty-and-one-elem-array.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
empty-array.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
empty.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
ending-run.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
enum-class.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
enum-fwd-decl.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
externaltyperef.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
fission-cu.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
fission-hash.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
fission-inline.ll DebugInfo: Remove MDString-based type references 2016-04-23 21:08:00 +00:00
fission-no-inlining.ll DebugInfo: Add flag to CU to disable emission of inline debug info into the skeleton CU 2016-08-24 18:29:49 +00:00
fission-ranges.ll Teach LiveDebugValues about lexical scopes. 2016-09-28 17:51:14 +00:00
float_const_loclist.ll [MIR] Print on the given output instead of stderr. 2016-07-13 20:36:03 +00:00
float_const.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
formal_parameter.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
frame-register.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
generate-odr-hash.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
ghost-sdnode-dbgvalues.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
gmlt.test
gnu-public-names-empty.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
gnu-public-names.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
header.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
inline-asm-locs.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
inline-member-function.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
inline-seldag-test.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
inlined-formal-parameter.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
inlined-indirect-value.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
InlinedFnLocalVar.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
instcombine-instrinsics.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
isel-cse-line.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
lexical_block.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
lexical-block-file-inline.ll Reverting 268054 & 268063 as they caused PR27579. 2016-04-30 01:44:07 +00:00
line-info.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
line.test Refactor test to be reused across architectures 2015-01-29 20:21:24 +00:00
linkage-name.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
lit.local.cfg
live-debug-values.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
low-pc-cu.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
main-file-name.s
memberfnptr.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
mi-print.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
misched-dbg-value.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
missing-file-line.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
mixed-nodebug-cu.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
multiple-aranges.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
multiple-at-const-val.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
nodebug_with_debug_loc.ll DebugInfo: Remove MDString-based type references 2016-04-23 21:08:00 +00:00
nondefault-subrange-array.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
nophysreg.ll DebugInfo: Remove MDString-based type references 2016-04-23 21:08:00 +00:00
noreturn_c11.ll Move tests to the appropriate subdirectory. 2016-08-17 16:55:56 +00:00
noreturn_cpp11.ll Move tests to the appropriate subdirectory. 2016-08-17 16:55:56 +00:00
noreturn_objc.ll Move tests to the appropriate subdirectory. 2016-08-17 16:55:56 +00:00
objc-fwd-decl.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
objc-property-void.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
op_deref.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
parameters.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
pieces-1.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
pieces-2.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
pieces-3.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
pieces-4.ll Improve DEBUG_VALUE assembly comments for spilled bitpieces 2016-10-05 18:36:02 +00:00
pointer-type-size.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
pr11300.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
pr12831.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
pr13303.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
pr19307.ll DebugInfo: Remove MDString-based type references 2016-04-23 21:08:00 +00:00
pr28270.ll Remove hack introduced by r273641. 2016-06-24 06:58:15 +00:00
PR26148.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
processes-relocations.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
prologue-stack.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
ref_addr_relocation.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
reference-argument.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
rematerialize.ll When the inline spiller rematerializes an instruction, take the debug location from the instruction 2016-08-16 17:12:50 +00:00
rvalue-ref.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
safestack-byval.ll [MIR] Print on the given output instead of stderr. 2016-07-13 20:36:03 +00:00
single-dbg_value.ll [MIR] Print on the given output instead of stderr. 2016-07-13 20:36:03 +00:00
sret.ll DebugInfo: Remove MDString-based type references 2016-04-23 21:08:00 +00:00
sroasplit-1.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
sroasplit-2.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
sroasplit-3.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
sroasplit-4.ll DebugInfo: Remove MDString-based type references 2016-04-23 21:08:00 +00:00
sroasplit-5.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
stack-value-dwarf4.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
stmt-list-multiple-compile-units.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
stmt-list.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
stringpool.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
struct-loc.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
subrange-type.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
subreg.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
subregisters.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
template.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
tls.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
type_units_with_addresses.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
unattached-global.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
union-const.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
union-template.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
vector.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
vla.ll [SSP, 2/2] Create llvm.stackguard() intrinsic and lower it to LOAD_STACK_GUARD 2016-04-19 19:40:37 +00:00
zextload.ll [CodeGenPrepare] When moving a zext near to its associated load, do not retain the original debug location. 2016-10-17 11:32:26 +00:00