Paul Robinson 75aa3d520d Add a DIExpression const-folder to prevent silly expressions. ... It's entirely possible (because it actually happened) for a bool variable to end up with a 256-bit DW_AT_const_value. This came about when a local bool variable was initialized from a bitfield in a 32-byte struct of bitfields, and after inlining and constant propagation, the variable did have a constant value. The sequence of optimizations had it carrying "i256" values around, but once the constant made it into the llvm.dbg.value, no further IR changes could affect it. Technically the llvm.dbg.value did have a DIExpression to reduce it back down to 8 bits, but the compiler is in no way ready to emit an oversized constant *and* a DWARF expression to manipulate it. Depending on the circumstances, we had either just the very fat bool value, or an expression with no starting value. The sequence of optimizations that led to this state did seem pretty reasonable, so the solution I came up with was to invent a DWARF constant expression folder. Currently it only does convert ops, but there's no reason it couldn't do other ops if that became useful. This broke three tests that depended on having convert ops survive into the DWARF, so I added an operator that would abort the folder to each of those tests. Differential Revision: https://reviews.llvm.org/D106915		2021-08-05 06:14:40 -07:00
..
AArch64	GlobalISel/AArch64: don't optimize away redundant branches at -O0	2021-07-29 16:04:22 -07:00
AMDGPU	[MCAsmInfo] Support UsesCFIForDebug for targets with no exception handling	2021-05-06 04:53:45 +05:30
ARM	[DebugInfo][InstrRef] Don't break up ret-sequences on debug-info instrs	2021-07-28 15:56:00 +01:00
BPF	Revert "[NFC] remove explicit default value for strboolattr attribute in tests"	2021-05-24 19:43:40 +02:00
COFF	[CodeView] Saturate values bigger than supported by APInt.	2021-07-26 22:15:26 +02:00
Generic	[llc] Default MCUseDwarfDirectory to true	2021-07-12 17:44:02 -07:00
Inputs	Move dwarfdump-invalid.test into the tools/llvm-dwarfdump directory.	2021-06-23 12:00:34 -07:00
Lanai	…
MIR	[DebugInfo][InstrRef] Fix a broken substitution method, add test coverage	2021-07-20 11:45:13 +01:00
MSP430	[Debug-Info][llvm-dwarfdump] Don't use DW_FORM_data4/8	2021-07-26 03:47:02 +00:00
Mips	[LiveDebugValues][InstrRef][2/2] Emit entry value variable locations	2021-06-30 23:07:39 +01:00
NVPTX	[llc] Default MCUseDwarfDirectory to true	2021-07-12 17:44:02 -07:00
PDB	[test] Avoid llvm-readelf/llvm-readobj one-dash long options and deprecated aliases (e.g. --file-headers)	2021-07-15 10:26:21 -07:00
PowerPC	[Debug-Info][llvm-dwarfdump] Don't use DW_FORM_data4/8	2021-07-26 03:47:02 +00:00
RISCV	Revert "[NFC] remove explicit default value for strboolattr attribute in tests"	2021-05-24 19:43:40 +02:00
Sparc	[LiveDebugValues][InstrRef][2/2] Emit entry value variable locations	2021-06-30 23:07:39 +01:00
Symbolize/ELF	[llvm-symbolizer][llvm-nm] Fix AArch64 and ARM mapping symbols handling.	2021-03-23 14:17:12 +01:00
SystemZ	…
WebAssembly	[WebAssembly] Add TargetInstrInfo::getCalleeOperand	2021-05-26 11:43:59 -07:00
X86	Add a DIExpression const-folder to prevent silly expressions.	2021-08-05 06:14:40 -07:00
XCOFF	[AIX][XCOFF] Use bit order of has_vec and longtbtable bits as defined in AIX header debug.h	2021-07-09 11:06:46 -04:00
arange-overlap.test	…
arm-relocs.test	…
cDefaultLower.ll	[DebugInfo] Upgrade DISubrange to support Fortran dynamic arrays	2020-05-28 13:46:41 +05:30
check-debugify-preserves-analyses.ll	[FunctionAttrs] Rename functionattrs -> function-attrs	2020-07-28 09:09:13 -07:00
cross-cu-inlining.test	…
cross-cu-scope.ll	Restore lit feature object-emission. Omit DebugInfo/Generic on XCore.	2021-04-16 13:02:14 +01:00
debug-frame-cie-pointer-reloc.test	[DebugInfo] Read CIE pointer as a relocatable value.	2020-02-20 09:12:05 +07:00
debugify-bogus-dbg-value.ll	…
debugify-each.ll	[Debugify] Skip debugifying on special/immutable passes	2020-11-16 20:39:46 -08:00
debugify-export.ll	[Debugify] Skip debugifying on special/immutable passes	2020-11-16 20:39:46 -08:00
debugify-ignore-phi.ll	[Transforms][Debugify] Fix "Missing line" false alarm on PHI nodes	2021-05-14 14:06:13 +02:00
debugify-original-no-dbg-info.ll	Reland "[Debugify] Make the debugify aware of the original (-g) Debug Info"	2021-02-18 23:29:22 -08:00
debugify-report-missing-locs-only.ll	[debugify] Demote an error about empty locations to a warning	2020-06-26 14:55:02 -07:00
debugify.ll	Reland "[MachineDebugify] Insert synthetic DBG_VALUE instructions"	2020-12-14 22:34:23 -05:00
debuglineinfo-macho.test	…
debuglineinfo-path.ll	Restore lit feature object-emission. Omit DebugInfo/Generic on XCore.	2021-04-16 13:02:14 +01:00
debuglineinfo.test	…
debugmacinfo-dwo.test	[DebugInfo] Support for debug_macinfo.dwo section in llvm and llvm-dwarfdump.	2019-12-03 08:54:12 +05:30
debugmacinfo.test	…
duplicate_dbgvalue.ll	[DebugInfo] Avoid generating duplicate llvm.dbg.value	2020-03-03 09:56:45 +05:30
dwarfdump-16bit-addr.test	[DebugInfo] Explicitly permit addr_size = 0x02 when parsing DWARF data	2020-06-22 13:11:55 +03:00
dwarfdump-accel.test	…
dwarfdump-bad-lookup-address.test	…
dwarfdump-dataLocationExp.ll	Fixed arm build bot failure after 4042ada1c1	2020-05-15 23:30:05 +05:30
dwarfdump-dataLocationVar.ll	Fixed arm build bot failure after 4042ada1c1	2020-05-15 23:30:05 +05:30
dwarfdump-debug-frame-simple.test	Add regular expressions to and DWARF Call Frame Information tests in case the architecture specific target is not compiled into LLVM.	2020-10-07 14:27:19 -07:00
dwarfdump-decompression-corrupt.test	llvm-dwarfdump: Return non-zero on error	2020-04-09 20:53:58 -07:00
dwarfdump-decompression-error.test	llvm-dwarfdump: Return non-zero on error	2020-04-09 20:53:58 -07:00
dwarfdump-dump-flags.test	…
dwarfdump-dump-gdbindex.test	…
dwarfdump-dwp.test	llvm-dwarfdump: Include unit count in DWP index header dumping	2020-06-12 12:40:02 -07:00
dwarfdump-implicit-const.test	…
dwarfdump-macho-relocs.test	…
dwarfdump-macho-universal.test	…
dwarfdump-objc.test	…
dwarfdump-pubnames.test	[DebugInfo] Report the format of tables in .debug_pub* sections [8/10]	2020-06-02 17:55:31 +07:00
dwarfdump-pushobjectaddress.ll	Fixed arm build bot failure after ab699d78a2	2020-05-15 23:14:56 +05:30
dwarfdump-ranges.test	…
dwarfdump-type-units.test	[DebugInfo] Separate fields with commas in headers of type units (3/3).	2020-06-01 17:40:28 +07:00
dwarfdump-zlib.test	[DebugInfo] Report the format of compilation units [3/10]	2020-06-02 17:55:30 +07:00
dwo.ll	Restore lit feature object-emission. Omit DebugInfo/Generic on XCore.	2021-04-16 13:02:14 +01:00
fortran-string-type.ll	[DebugInfo] Add handling of stringLengthExp operand of DIStringType.	2020-12-08 14:49:59 -05:00
fortranDefaultLower.ll	[DebugInfo] Upgrade DISubrange to support Fortran dynamic arrays	2020-05-28 13:46:41 +05:30
fortranSubrangeCountExpr.ll	[DebugInfo] Upgrade DISubragne::count to accept DIExpression also	2021-03-30 09:16:55 +05:30
fortranSubrangeExpr.ll	[DebugInfo] Upgrade DISubrange to support Fortran dynamic arrays	2020-05-28 13:46:41 +05:30
fortranSubrangeInt.ll	[DebugInfo] Upgrade DISubrange to support Fortran dynamic arrays	2020-05-28 13:46:41 +05:30
fortranSubrangeVar.ll	Fixed bot failure after d20bf5a725	2020-05-28 18:01:38 +05:30
gcc-local-mem-func.test	…
high-pc-constant.test	…
implicit-const-test2.s	llvm-dwarfdump: Fix DWARF-5 DW_FORM_implicit_const (used by GCC)	2021-03-09 09:26:58 +01:00
invalid-inlined-subroutine.s	Fix a crash in DWARFUnit::getInlinedChainForAddress in case of unexpected DWARF information.	2021-03-09 14:20:27 +04:00
invalid-relocations.test	[test] Use yaml2obj -o %t instead of > %t	2020-01-21 17:20:18 -08:00
limit-arglist-size.ll	Partial Reapply "[DebugInfo] Use variadic debug values to salvage BinOps and GEP instrs with non-const operands"	2021-06-24 09:46:38 +01:00
llvm-symbolizer-bbsections-test.s	Recommit D91678 after fixing the test breakage.	2021-01-09 17:44:12 -08:00
macro_link.ll	…
member-pointers.o	…
missing-abstract-variable.o	…
omit-empty.ll	Restore lit feature object-emission. Omit DebugInfo/Generic on XCore.	2021-04-16 13:02:14 +01:00
pr34186.ll	…
pr34672.ll	…
pr37964.ll	[Debugify] Port -debugify-each to NewPM	2020-11-02 08:16:43 -08:00
precomp.test	[test] Use yaml2obj -o %t instead of > %t	2020-01-21 17:20:18 -08:00
salvage-cast-debug-info.ll	[EarlyCSE] Verify hash code in regression tests	2020-09-04 10:40:35 -04:00
salvage-duplicate-values.ll	Reapply "[DebugInfo] Enable variadic debug value salvaging"	2021-07-15 12:54:51 +01:00
salvage-gep.ll	Reapply "[DebugInfo] Enable variadic debug value salvaging"	2021-07-15 12:54:51 +01:00
salvage-nonconst-binop.ll	Reapply "[DebugInfo] Enable variadic debug value salvaging"	2021-07-15 12:54:51 +01:00
simplify-cfg-preserve-dbg-values.ll	[SimplifyCFG] Remap rewritten debug intrinsic operands.	2020-05-08 11:10:25 -07:00
skeletoncu.ll	Restore lit feature object-emission. Omit DebugInfo/Generic on XCore.	2021-04-16 13:02:14 +01:00
strip-DIGlobalVariable.ll	…
strip-loop-metadata.ll	…
strip-module-flags.ll	…
symbolize-64bit-address.test	…
symbolize-absolute-path-in-debug-line.s	…
symbolize-build-id-error.test	[yaml2obj] - ProgramHeaders: introduce FirstSec/LastSec instead of Sections list.	2020-11-09 13:00:50 +03:00
symbolize-build-id.test	[yaml2obj] - ProgramHeaders: introduce FirstSec/LastSec instead of Sections list.	2020-11-09 13:00:50 +03:00
symbolize-demangling.s	…
symbolize-directory.s	…
symbolize-gnu-debuglink-fallback.test	…
symbolize-gnu-debuglink-no-realpath.test	…
symbolize-gnu-debuglink.test	…
symbolize-inlined.test	[test][tools] Add missing and improve testing	2019-12-09 12:24:23 +00:00
symbolize-macho-universal-unknown-arch.test	Revert several changes related to llvm-symbolizer exiting non-zero on failure.	2020-10-21 15:21:44 -07:00
symbolize-macho-universal.test	…
symbolize-missing-file.test	[test] Use host platform specific error message substitution in lit tests	2021-01-29 07:16:30 -05:00
symbolize-no-debug-str.test	…
symbolize-paths.s	attempt to fix symbolize-paths.s everywhere after cd68f4	2020-01-29 14:26:50 -05:00
symbolize-shared-abbrev.s	…
symbolize-split-dwarf-empty.test	…
symbolize-split-dwarf-no-skel-address.test	…
symbolize-stripped-sections.test	…
symbolize-stripped.test	…
symbolize-tu.test	…
symbolize-zlib.test	…
symbolize.test	…
typeunit-header.test	[DebugInfo] Report the format of type units [10/10]	2020-06-02 17:55:31 +07:00
unrolled-loop-remainder.ll	…