Jeremy Morse 8496fc2ec8 [DebugInstrRef][1/3] Track PHI values through register allocation ... This patch introduces "DBG_PHI" instructions, a marker of where a PHI instruction used to be, before PHI elimination. Under the instruction referencing model, we want to know where every value in the function is defined -- and a PHI, even if implicit, is such a place. Just like instruction numbers, we can use this to identify a value to be used as a variable value, but we don't need to know what instruction defines that value, for example: bb1: DBG_PHI $rax, 1 [... more insts ... ] bb2: DBG_INSTR_REF 1, 0, !1234, !DIExpression() This specifies that on entry to bb1, whatever value is in $rax is known as value number one -- and the later DBG_INSTR_REF marks the position where variable !1234 should take on value number one. PHI locations are stored in MachineFunction for the duration of the regalloc phase in the DebugPHIPositions map. The map is populated by PHIElimination, and then flushed back into the instruction stream by virtregrewriter. A small amount of maintenence is needed in LiveDebugVariables to account for registers being split, but only for individual positions, not for entire ranges of blocks. Differential Revision: https://reviews.llvm.org/D86812		2021-05-26 20:24:00 +01:00
..
AArch64	Reapply "RegAllocFast: Rewrite and improve"	2020-09-30 10:35:25 -04:00
AMDGPU	[MCAsmInfo] Support UsesCFIForDebug for targets with no exception handling	2021-05-06 04:53:45 +05:30
ARM	Revert "[NFC] remove explicit default value for strboolattr attribute in tests"	2021-05-24 19:43:40 +02:00
BPF	Revert "[NFC] remove explicit default value for strboolattr attribute in tests"	2021-05-24 19:43:40 +02:00
COFF	Revert "[NFC] remove explicit default value for strboolattr attribute in tests"	2021-05-24 19:43:40 +02:00
Generic	Revert "[NFC] remove explicit default value for strboolattr attribute in tests"	2021-05-24 19:43:40 +02:00
Inputs	Revert "[NFC] remove explicit default value for strboolattr attribute in tests"	2021-05-24 19:43:40 +02:00
Lanai	…
MIR	[DebugInstrRef][1/3] Track PHI values through register allocation	2021-05-26 20:24:00 +01:00
MSP430	Attempt to unbreak the test introduced in 359fae6eb0 on Windows	2020-06-22 14:41:55 +03:00
Mips	Revert "[NFC] remove explicit default value for strboolattr attribute in tests"	2021-05-24 19:43:40 +02:00
NVPTX	Revert "[NFC] remove explicit default value for strboolattr attribute in tests"	2021-05-24 19:43:40 +02:00
PDB	[lld] Fixed CodeView GuidAdapter::format to handle GUID bytes in the right order.	2021-04-09 05:29:14 +04:00
PowerPC	[Debug-Info] make DIE attributes generation under strict DWARF control	2021-05-13 20:34:07 -04:00
RISCV	Revert "[NFC] remove explicit default value for strboolattr attribute in tests"	2021-05-24 19:43:40 +02:00
Sparc	Revert "[NFC] remove explicit default value for strboolattr attribute in tests"	2021-05-24 19:43:40 +02:00
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	Revert "[NFC] remove explicit default value for strboolattr attribute in tests"	2021-05-24 19:43:40 +02:00
XCOFF	[AIX] Print printable byte list as quoted string	2021-05-21 02:37:55 +00:00
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-invalid.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	[DebugInfo] Limit the number of values that may be referenced by a dbg.value	2021-05-26 17:34:05 +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-gep.ll	3rd Reapply "[DebugInfo] Use variadic debug values to salvage BinOps and GEP instrs with non-const operands"	2021-05-21 11:06:20 +01:00
salvage-nonconst-binop.ll	3rd Reapply "[DebugInfo] Use variadic debug values to salvage BinOps and GEP instrs with non-const operands"	2021-05-21 11:06:20 +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	…