llvm-project

History

David Stenberg 1ae2d9a2bd [DebugInfo] Add a DW_OP_LLVM_entry_value operation Summary: Internally in LLVM's metadata we use DW_OP_entry_value operations with the same semantics as DWARF; that is, its operand specifies the number of bytes that the entry value covers. At the time of emitting entry values we don't know the emitted size of the DWARF expression that the entry value will cover. Currently the size is hardcoded to 1 in DIExpression, and other values causes the verifier to fail. As the size is 1, that effectively means that we can only have valid entry values for registers that can be encoded in one byte, which are the registers with DWARF numbers 0 to 31 (as they can be encoded as single-byte DW_OP_reg0..DW_OP_reg31 rather than a multi-byte DW_OP_regx). It is a bit confusing, but it seems like llvm-dwarfdump will print an operation "correctly", even if the byte size is less than that, which may make it seem that we emit correct DWARF for registers with DWARF numbers > 31. If you instead use readelf for such cases, it will interpret the number of specified bytes as a DWARF expression. This seems like a limitation in llvm-dwarfdump. As suggested in D66746, a way forward would be to add an internal variant of DW_OP_entry_value, DW_OP_LLVM_entry_value, whose operand instead specifies the number of operations that the entry value covers, and we then translate that into the byte size at the time of emission. In this patch that internal operation is added. This patch keeps the limitation that a entry value can only be applied to simple register locations, but it will fix the issue with the size operand being incorrect for DWARF numbers > 31. Reviewers: aprantl, vsk, djtodoro, NikolaPrica Reviewed By: aprantl Subscribers: jyknight, fedor.sergeev, hiraditya, llvm-commits Tags: #debug-info, #llvm Differential Revision: https://reviews.llvm.org/D67492 llvm-svn: 374881		2019-10-15 11:31:21 +00:00
..
AMDGPU	AMDGPU: Fix missing immarg for mfma intrinsics	2019-07-16 17:22:21 +00:00
ARM	ARM: Fix missing immarg for space intrinsic	2019-07-16 22:41:38 +00:00
Mips	[Mips] Remove immarg test for intrinsics that no longer have an immarg after r372409.	2019-09-20 18:52:49 +00:00
SystemZ	[SystemZ] Add support for new cpu architecture - arch13	2019-07-12 18:13:16 +00:00
2002-04-13-RetTypes.ll	…
2002-11-05-GetelementptrPointers.ll	…
2004-05-21-SwitchConstantMismatch.ll	Make shell redirection construct portable	2017-07-12 13:24:46 +00:00
2006-07-11-StoreStruct.ll	…
2006-10-15-AddrLabel.ll	…
2006-12-12-IntrinsicDefine.ll	Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)	2018-01-19 17:13:12 +00:00
2007-12-21-InvokeParamAttrs.ll	Make shell redirection construct portable	2017-07-12 13:24:46 +00:00
2008-01-11-VarargAttrs.ll	Make shell redirection construct portable	2017-07-12 13:24:46 +00:00
2008-03-01-AllocaSized.ll	…
2008-11-15-RetVoid.ll	…
2009-05-29-InvokeResult1.ll	Make shell redirection construct portable	2017-07-12 13:24:46 +00:00
2009-05-29-InvokeResult2.ll	Make shell redirection construct portable	2017-07-12 13:24:46 +00:00
2009-05-29-InvokeResult3.ll	Make shell redirection construct portable	2017-07-12 13:24:46 +00:00
2010-08-07-PointerIntrinsic.ll	Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)	2018-01-19 17:13:12 +00:00
AmbiguousPhi.ll	…
DIFile.ll	[DebugInfo] Unify ChecksumKind and Checksum value in DIFile	2018-02-12 19:45:54 +00:00
DILocation-parents.ll	Move the stripping of invalid debug info from the Verifier to AutoUpgrade.	2017-10-02 18:31:29 +00:00
DILocation-scope.ll	Verifier: verify that a DILocation's scope is a DILocalScope.	2018-08-24 21:01:58 +00:00
DISubprogram.ll	Move the stripping of invalid debug info from the Verifier to AutoUpgrade.	2017-10-02 18:31:29 +00:00
PhiGrouping.ll	…
README.txt	…
SelfReferential.ll	…
alias.ll	…
align-md.ll	…
alloc-size-failedparse.ll	…
allocsize.ll	…
amdgpu-cc.ll	Verifier: Check some amdgpu calling convention restrictions	2017-04-04 18:43:11 +00:00
atomics.ll	…
bitcast-address-space-nested-global-cycle.ll	…
bitcast-address-space-nested-global.ll	…
bitcast-address-space-through-constant-inttoptr-inside-gep-instruction.ll	…
bitcast-address-space-through-constant-inttoptr.ll	…
bitcast-address-space-through-gep-2.ll	…
bitcast-address-space-through-gep.ll	…
bitcast-address-space-through-inttoptr.ll	…
bitcast-address-spaces.ll	…
bitcast-alias-address-space.ll	…
bitcast-pointer-vector-neg.ll	[IR Verifier] Do not allow bitcast of pointer to vector of pointers and vice versa.	2018-08-21 04:27:07 +00:00
bitcast-vector-pointer-as-neg.ll	[IR Verifier] Do not allow bitcast of pointer to vector of pointers and vice versa.	2018-08-21 04:27:07 +00:00
bitcast-vector-pointer-as.ll	…
bitcast-vector-pointer-neg.ll	[IR Verifier] Do not allow bitcast of pointer to vector of pointers and vice versa.	2018-08-21 04:27:07 +00:00
bitcast-vector-pointer-pos.ll	[IR Verifier] Do not allow bitcast of pointer to vector of pointers and vice versa.	2018-08-21 04:27:07 +00:00
blockbyref.ll	Remove the obsolete BlockByRefStruct flag from LLVM IR	2019-09-18 22:38:56 +00:00
byval-1.ll	Make shell redirection construct portable	2017-07-12 13:24:46 +00:00
byval-4.ll	…
callbr.ll	[Verifier] add invariant check for callbr	2019-09-25 22:28:27 +00:00
callsite-dbgloc.ll	[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.	2018-05-09 02:40:45 +00:00
cc-flags.ll	Debug Info: Support DW_AT_calling_convention on composite types.	2018-01-05 01:13:37 +00:00
comdat-decl1.ll	…
comdat-decl2.ll	…
comdat.ll	…
comdat2.ll	IR: Disable verifier check for GlobalValues with private linkage named after a comdat for non-COFF.	2019-08-06 21:47:18 +00:00
comdat3.ll	…
commandline-meta1.ll	Implement -frecord-command-line (-frecord-gcc-switches)	2018-12-14 15:38:15 +00:00
commandline-meta2.ll	Implement -frecord-command-line (-frecord-gcc-switches)	2018-12-14 15:38:15 +00:00
commandline-meta3.ll	Implement -frecord-command-line (-frecord-gcc-switches)	2018-12-14 15:38:15 +00:00
commandline-meta4.ll	Implement -frecord-command-line (-frecord-gcc-switches)	2018-12-14 15:38:15 +00:00
cttz-undef-arg.ll	IR: Add immarg attribute	2019-03-12 21:02:54 +00:00
dbg-difile-crash.ll	Move the stripping of invalid debug info from the Verifier to AutoUpgrade.	2017-10-02 18:31:29 +00:00
dbg-invalid-compileunit.ll	Move the stripping of invalid debug info from the Verifier to AutoUpgrade.	2017-10-02 18:31:29 +00:00
dbg-invalid-named-metadata.ll	Move the stripping of invalid debug info from the Verifier to AutoUpgrade.	2017-10-02 18:31:29 +00:00
dbg-invalid-retaintypes.ll	Move the stripping of invalid debug info from the Verifier to AutoUpgrade.	2017-10-02 18:31:29 +00:00
dbg-invalid-vector.ll	[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.	2018-05-09 02:40:45 +00:00
dbg-line-without-file.ll	Move the stripping of invalid debug info from the Verifier to AutoUpgrade.	2017-10-02 18:31:29 +00:00
dbg-null-retained-type.ll	Move the stripping of invalid debug info from the Verifier to AutoUpgrade.	2017-10-02 18:31:29 +00:00
dbg-orphaned-compileunit.ll	…
dbg-typerefs.ll	…
dbg.ll	Move the stripping of invalid debug info from the Verifier to AutoUpgrade.	2017-10-02 18:31:29 +00:00
deoptimize-intrinsic.ll	…
dereferenceable-md-inttoptr.ll	[IR][Verifier] Allow IntToPtrInst to be !dereferenceable	2019-07-23 17:19:56 +00:00
dereferenceable-md.ll	[IR][Verifier] Allow IntToPtrInst to be !dereferenceable	2019-07-23 17:19:56 +00:00
di-subroutine-localvar.ll	[Verifier] Reject invalid type for DILocalVariable.	2019-01-07 23:09:09 +00:00
diderivedtype-address-space-atomic-type.ll	[DebugInfo] Emit address space with DW_AT_address_class attribute for pointer and reference types	2017-03-08 23:55:44 +00:00
diderivedtype-address-space-const-type.ll	[DebugInfo] Emit address space with DW_AT_address_class attribute for pointer and reference types	2017-03-08 23:55:44 +00:00
diderivedtype-address-space-friend.ll	[DebugInfo] Emit address space with DW_AT_address_class attribute for pointer and reference types	2017-03-08 23:55:44 +00:00
diderivedtype-address-space-inheritance.ll	[DebugInfo] Emit address space with DW_AT_address_class attribute for pointer and reference types	2017-03-08 23:55:44 +00:00
diderivedtype-address-space-member.ll	[DebugInfo] Emit address space with DW_AT_address_class attribute for pointer and reference types	2017-03-08 23:55:44 +00:00
diderivedtype-address-space-ptr-to-member-type.ll	[DebugInfo] Emit address space with DW_AT_address_class attribute for pointer and reference types	2017-03-08 23:55:44 +00:00
diderivedtype-address-space-restrict-type.ll	[DebugInfo] Emit address space with DW_AT_address_class attribute for pointer and reference types	2017-03-08 23:55:44 +00:00
diderivedtype-address-space-rvalue-reference-type.ll	Debug Info: Support address space attributes on rvalue references.	2019-05-07 17:42:38 +00:00
diderivedtype-address-space-typedef.ll	[DebugInfo] Emit address space with DW_AT_address_class attribute for pointer and reference types	2017-03-08 23:55:44 +00:00
diderivedtype-address-space-volatile-type.ll	[DebugInfo] Emit address space with DW_AT_address_class attribute for pointer and reference types	2017-03-08 23:55:44 +00:00
diexpression-dwarf-entry-value.ll	[DebugInfo] Add a DW_OP_LLVM_entry_value operation	2019-10-15 11:31:21 +00:00
diexpression-entry-value-llvm-ir.ll	[DebugInfo] Add a DW_OP_LLVM_entry_value operation	2019-10-15 11:31:21 +00:00
diexpression-entry-value.ll	[DebugInfo] Add a DW_OP_LLVM_entry_value operation	2019-10-15 11:31:21 +00:00
diexpression-swap.ll	[DebugInfo] Make legal and emit DW_OP_swap and DW_OP_xderef	2017-03-08 00:28:57 +00:00
diexpression-valid-entry-value.ll	[DebugInfo] Add a DW_OP_LLVM_entry_value operation	2019-10-15 11:31:21 +00:00
diglobalvariable.ll	Move the stripping of invalid debug info from the Verifier to AutoUpgrade.	2017-10-02 18:31:29 +00:00
dominates.ll	…
element-wise-atomic-memory-intrinsics.ll	IR: Add immarg attribute	2019-03-12 21:02:54 +00:00
fnarg-debuginfo.ll	Move the stripping of invalid debug info from the Verifier to AutoUpgrade.	2017-10-02 18:31:29 +00:00
fnarg-nodebug.ll	[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.	2018-05-09 02:40:45 +00:00
fp-intrinsics.ll	[FPEnv] Strict FP tests should use the requisite function attributes.	2019-10-04 17:03:46 +00:00
fpmath.ll	…
fragment.ll	Move the stripping of invalid debug info from the Verifier to AutoUpgrade.	2017-10-02 18:31:29 +00:00
frameescape.ll	IR: Add immarg attribute	2019-03-12 21:02:54 +00:00
func-dbg.ll	Move the stripping of invalid debug info from the Verifier to AutoUpgrade.	2017-10-02 18:31:29 +00:00
function-metadata-bad.ll	…
function-metadata-good.ll	…
gc_relocate_addrspace.ll	…
gc_relocate_operand.ll	…
gc_relocate_return.ll	…
gcread-ptrptr.ll	Make shell redirection construct portable	2017-07-12 13:24:46 +00:00
gcroot.ll	Replace gcroot verifier tests	2019-02-14 22:41:01 +00:00
gcwrite-ptrptr.ll	Make shell redirection construct portable	2017-07-12 13:24:46 +00:00
global-ctors-2.ll	[IR] Disallow llvm.global_ctors and llvm.global_dtors of the 2-field form in textual format	2019-05-15 02:35:32 +00:00
global-ctors.ll	…
guard-intrinsic.ll	…
ident-meta1.ll	…
ident-meta2.ll	…
ident-meta3.ll	…
ident-meta4.ll	…
immarg-param-attribute-invalid.ll	IR: Add immarg attribute	2019-03-12 21:02:54 +00:00
inalloca-vararg.ll	…
inalloca1.ll	…
inalloca2.ll	…
inalloca3.ll	…
intrinsic-arg-overloading-struct-ret.ll	Test forward references in IntrinsicEmitter on Neon LD(2\|3\|4)	2019-06-17 12:01:53 +00:00
intrinsic-bad-arg-type.ll	[IntrinsicEmitter] Support scalable vectors in intrinsics	2019-08-27 12:57:09 +00:00
intrinsic-immarg.ll	[Intrinsic] Add the llvm.umul.fix.sat intrinsic	2019-09-07 12:16:14 +00:00
invalid-disubrange-count-node.ll	[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.	2018-05-09 02:40:45 +00:00
invalid-eh.ll	Change "UNSUPPORTED: windows" to be "UNSUPPORTED: system-windows" so that test is actually skipped on Windows.	2018-02-08 18:45:16 +00:00
invalid-statepoint.ll	…
invalid-statepoint2.ll	…
invoke.ll	…
jumptable.ll	…
llvm.compiler_used-invalid-type.ll	…
llvm.dbg.declare-address.ll	Move the stripping of invalid debug info from the Verifier to AutoUpgrade.	2017-10-02 18:31:29 +00:00
llvm.dbg.declare-expression.ll	Move the stripping of invalid debug info from the Verifier to AutoUpgrade.	2017-10-02 18:31:29 +00:00
llvm.dbg.declare-variable.ll	Move the stripping of invalid debug info from the Verifier to AutoUpgrade.	2017-10-02 18:31:29 +00:00
llvm.dbg.intrinsic-dbg-attachment.ll	Verifier: fix bug treating debug info issue as non-debug info issue	2018-01-23 16:11:15 +00:00
llvm.dbg.value-expression.ll	Move the stripping of invalid debug info from the Verifier to AutoUpgrade.	2017-10-02 18:31:29 +00:00
llvm.dbg.value-value.ll	Move the stripping of invalid debug info from the Verifier to AutoUpgrade.	2017-10-02 18:31:29 +00:00
llvm.dbg.value-variable.ll	Move the stripping of invalid debug info from the Verifier to AutoUpgrade.	2017-10-02 18:31:29 +00:00
llvm.loop.ll	Add debug location verification for !llvm.loop attachments.	2019-06-18 20:09:09 +00:00
llvm.used-invalid-init.ll	…
llvm.used-invalid-init2.ll	…
llvm.used-invalid-type.ll	…
llvm.used-invalid-type2.ll	…
llvm.used-ptr-type.ll	…
masked-load.ll	Verifier: Make sure masked load/store alignment is a power of 2	2019-03-13 19:46:34 +00:00
masked-store.ll	Verifier: Make sure masked load/store alignment is a power of 2	2019-03-13 19:46:34 +00:00
mdcompositetype-templateparams-tuple.ll	…
mdcompositetype-templateparams.ll	…
memcpy.ll	Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)	2018-01-19 17:13:12 +00:00
metadata-function-dbg.ll	[IR] Add DISuprogram and DIE for a func decl	2019-06-27 06:07:41 +00:00
metadata-function-prof.ll	…
module-flags-1.ll	Support for taking the max of module flags when linking, use for PIE/PIC	2017-05-23 00:08:00 +00:00
module-flags-2.ll	…
module-flags-3.ll	…
module-flags-cgprofile.ll	Recommit r335794 "Add support for generating a call graph profile from Branch Frequency Info." with fix for removed functions.	2018-07-16 00:28:24 +00:00
musttail-invalid.ll	Tweak an assert message in the verifier	2018-04-06 10:20:19 +00:00
musttail-valid.ll	…
non-integer-gep-index.ll	[Verifier] Check that GEP indexes has correct types	2017-12-14 09:33:58 +00:00
non-integer-gep-index.ll.bc	[Verifier] Check that GEP indexes has correct types	2017-12-14 09:33:58 +00:00
non-integral-pointers.ll	…
operand-bundles.ll	…
pr34325.ll	Move the stripping of invalid debug info from the Verifier to AutoUpgrade.	2017-10-02 18:31:29 +00:00
range-1.ll	…
range-2.ll	…
recursive-struct-param.ll	…
recursive-type-1.ll	…
recursive-type-2.ll	…
recursive-type-3.ll	…
resume.ll	…
scalable-global-vars.ll	Scalable Vector IR Type with further LTO fixes	2019-07-05 12:48:16 +00:00
scatter_gather.ll	Support arbitrary address space pointers in masked gather/scatter intrinsics.	2017-05-03 12:28:54 +00:00
speculatable-callsite-invalid.ll	Add speculatable function attribute	2017-04-28 20:25:27 +00:00
speculatable-callsite.ll	Add speculatable function attribute	2017-04-28 20:25:27 +00:00
sret.ll	…
statepoint.ll	[IRVerifier] Allow StructRet in statepoint	2018-11-16 14:28:05 +00:00
swifterror.ll	…
swifterror2.ll	…
swifterror3.ll	…
swiftself.ll	…
tbaa-allowed.ll	…
tbaa.ll	Move the stripping of invalid debug info from the Verifier to AutoUpgrade.	2017-10-02 18:31:29 +00:00
token1.ll	…
token2.ll	…
token3.ll	…
token4.ll	…
token5.ll	…
token6.ll	…
token7.ll	…
unsized-types.ll	…
varargs-intrinsic.ll	…
variant-part.ll	Add DWARF for discriminated unions	2018-02-06 23:45:59 +00:00
writeonly.ll	…

README.txt

This directory contains testcases that the verifier is supposed to detect as
malformed LLVM code.  Testcases for situations that the verifier incorrectly
identifies as malformed should go in the test/Assembler directory.