David Stenberg 6d857166d2 [DebugInfo] Describe call site values for chains of expression producing instrs ... Summary: If the describeLoadedValue() hook produced a DIExpression when describing a instruction, and it was not possible to emit a call site entry directly (the value operand was not an immediate nor a preserved register), then that described value could not be inserted into the worklist, and would instead be dropped, meaning that the parameter's call site value couldn't be described. This patch extends the worklist so that each entry has an DIExpression that is built up when iterating through the instructions. This allows us to describe instruction chains like this: $reg0 = mv $fp $reg0 = add $reg0, offset call @call_with_offseted_fp Since DW_OP_LLVM_entry_value operations can't be combined with any other expression, such call site entries will not be emitted. I have added a test, dbgcall-site-expr-entry-value.mir, which verifies that we don't assert or emit broken DWARF in such cases. Reviewers: djtodoro, aprantl, vsk Reviewed By: djtodoro, vsk Subscribers: hiraditya, llvm-commits Tags: #debug-info, #llvm Differential Revision: https://reviews.llvm.org/D75036		2020-02-27 11:18:51 +01:00
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ARMException.cpp	[MC] De-capitalize another set of MCStreamer::Emit* functions	2020-02-14 19:26:52 -08:00
AccelTable.cpp	[MCStreamer] De-capitalize EmitValue EmitIntValue{,InHex}	2020-02-14 23:08:40 -08:00
AddressPool.cpp	[MCStreamer] De-capitalize EmitValue EmitIntValue{,InHex}	2020-02-14 23:08:40 -08:00
AddressPool.h	DebugInfo: Use assembly label arithmetic for address pool size for easier reading/editing	2019-01-24 03:27:57 +00:00
AsmPrinter.cpp	[MC] De-capitalize MCStreamer::Emit{Bundle,Addrsig}* etc	2020-02-15 09:11:48 -08:00
AsmPrinterDwarf.cpp	Support emitting .cfi_undefined in CodeGen	2020-02-25 14:00:01 -05:00
AsmPrinterInlineAsm.cpp	[MC] De-capitalize MCStreamer::Emit{Bundle,Addrsig}* etc	2020-02-15 09:11:48 -08:00
ByteStreamer.h	[AsmPrinter] De-capitalize some AsmPrinter::Emit* functions	2020-02-13 13:38:33 -08:00
CMakeLists.txt	[cmake] Explicitly mark libraries defined in lib/ as "Component Libraries"	2019-11-21 10:48:08 -08:00
CodeViewDebug.cpp	[MCStreamer] De-capitalize EmitValue EmitIntValue{,InHex}	2020-02-14 23:08:40 -08:00
CodeViewDebug.h	Revert d91ed80 "[codeview] Reference types in type parent scopes"	2019-11-08 11:30:33 +01:00
DIE.cpp	[MCStreamer] De-capitalize EmitValue EmitIntValue{,InHex}	2020-02-14 23:08:40 -08:00
DIEHash.cpp	DebugInfo: Simplify emitDebugLocEntry by never passing a null CU	2020-02-03 18:47:14 -08:00
DIEHash.h	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
DIEHashAttributes.def	…
DbgEntityHistoryCalculator.cpp	[OPT-DBG] Teach DbgEntityHistoryCalculator about meta-instructions.	2019-12-20 14:03:34 +00:00
DebugHandlerBase.cpp	[MC] De-capitalize another set of MCStreamer::Emit* functions	2020-02-14 19:26:52 -08:00
DebugLocEntry.h	[WebAssembly] Use TargetIndex operands in DbgValue to track WebAssembly operands locations	2019-12-20 14:39:05 -08:00
DebugLocStream.cpp	hwasan: add tag_offset DWARF attribute to optimized debug info	2019-12-12 16:18:54 -08:00
DebugLocStream.h	hwasan: add tag_offset DWARF attribute to optimized debug info	2019-12-12 16:18:54 -08:00
DwarfCFIException.cpp	[AsmPrinter][MCStreamer] De-capitalize EmitInstruction and EmitCFI*	2020-02-13 22:08:55 -08:00
DwarfCompileUnit.cpp	[MC] De-capitalize another set of MCStreamer::Emit* functions	2020-02-14 19:26:52 -08:00
DwarfCompileUnit.h	Reland (again): [DWARF] Allow cross-CU references of subprogram definitions	2020-01-27 10:52:34 -08:00
DwarfDebug.cpp	[DebugInfo] Describe call site values for chains of expression producing instrs	2020-02-27 11:18:51 +01:00
DwarfDebug.h	Revert "Reland "[DebugInfo] Enable the debug entry values feature by default""	2020-02-20 14:41:39 +01:00
DwarfException.h	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
DwarfExpression.cpp	Run clang-format on DwarfExpression (NFC)	2020-01-29 10:23:12 -08:00
DwarfExpression.h	Run clang-format on DwarfExpression (NFC)	2020-01-29 10:23:12 -08:00
DwarfFile.cpp	[MC] De-capitalize another set of MCStreamer::Emit* functions	2020-02-14 19:26:52 -08:00
DwarfFile.h	Reapply "NFC: DebugInfo: Refactor RangeSpanList to be a struct, like DebugLocStream::List"	2019-12-18 16:28:19 -08:00
DwarfStringPool.cpp	[MCStreamer] De-capitalize EmitValue EmitIntValue{,InHex}	2020-02-14 23:08:40 -08:00
DwarfStringPool.h	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
DwarfUnit.cpp	[MCStreamer] De-capitalize EmitValue EmitIntValue{,InHex}	2020-02-14 23:08:40 -08:00
DwarfUnit.h	DebugInfo: Move loclist base address from DwarfFile to DebugLocStream	2019-10-17 23:02:19 +00:00
EHStreamer.cpp	[MC] De-capitalize another set of MCStreamer::Emit* functions	2020-02-14 19:26:52 -08:00
EHStreamer.h	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
ErlangGCPrinter.cpp	[AsmPrinter] De-capitalize all AsmPrinter::Emit* but EmitInstruction	2020-02-13 17:06:24 -08:00
LLVMBuild.txt	[Remarks] Add string deduplication using a string table	2019-04-24 00:06:24 +00:00
OcamlGCPrinter.cpp	[MCStreamer] De-capitalize EmitValue EmitIntValue{,InHex}	2020-02-14 23:08:40 -08:00
WasmException.cpp	[MC] De-capitalize another set of MCStreamer::Emit* functions	2020-02-14 19:26:52 -08:00
WasmException.h	Update the file headers across all of the LLVM projects in the monorepo	2019-01-19 08:50:56 +00:00
WinCFGuard.cpp	[WinCFG] Handle constant casts carefully in .gfids emission	2019-11-01 13:32:03 -07:00
WinCFGuard.h	Add Windows Control Flow Guard checks (/guard:cf).	2019-10-28 15:19:39 +00:00
WinException.cpp	[MCStreamer] De-capitalize EmitValue EmitIntValue{,InHex}	2020-02-14 23:08:40 -08:00
WinException.h	[AArch64][Windows] Compute function length correctly in unwind tables.	2019-05-03 00:10:45 +00:00