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llvm/test/Verifier
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David Stenberg 633cd24e87 [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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@374881 91177308-0d34-0410-b5e6-96231b3b80d8
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
alias.ll Don't IPO over functions that can be de-refined 2016-04-08 00:48:30 +00:00
align-md.ll Add verification for align, dereferenceable, dereferenceable_or_null load metadata 2015-10-09 17:41:29 +00:00
alloc-size-failedparse.ll Add the allocsize attribute to LLVM. 2016-04-12 01:05:35 +00:00
allocsize.ll Add the allocsize attribute to LLVM. 2016-04-12 01:05:35 +00:00
AmbiguousPhi.ll
amdgpu-cc.ll Verifier: Check some amdgpu calling convention restrictions 2017-04-04 18:43:11 +00:00
atomics.ll Polish atomic pointers 2015-12-17 22:09:19 +00:00
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 [opaque pointer type] Add textual IR support for explicit type parameter for global aliases 2015-09-11 03:22:04 +00:00
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
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
comdat-decl1.ll Verifier: Forbid comdats on linker declarations. 2015-07-05 20:52:40 +00:00
comdat-decl2.ll Verifier: Forbid comdats on linker declarations. 2015-07-05 20:52:40 +00:00
comdat.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 [IR/Verifier] List the CU we weren't able to find in llvm.dbg.cu. 2017-02-20 22:51:42 +00:00
dbg-typerefs.ll DebugInfo: Remove MDString-based type references 2016-04-23 21:08:00 +00:00
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 All llvm.deoptimize declarations must use the same calling convention 2016-05-12 01:17:38 +00:00
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
DIFile.ll [DebugInfo] Unify ChecksumKind and Checksum value in DIFile 2018-02-12 19:45:54 +00:00
diglobalvariable.ll Move the stripping of invalid debug info from the Verifier to AutoUpgrade. 2017-10-02 18:31:29 +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
dominates.ll [Verifier] Reject PHIs using defs from own block. 2016-03-26 23:32:57 +00:00
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 Verifier: Reject non-float !fpmath 2016-06-27 19:43:15 +00:00
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 Add function importing info from samplepgo profile to the module summary. 2017-02-28 18:09:44 +00:00
function-metadata-good.ll Add function entry count metadata. 2015-05-13 15:13:45 +00:00
gc_relocate_addrspace.ll [gc.statepoint] Change gc.statepoint intrinsic's return type to token type instead of i32 type 2015-12-26 07:54:32 +00:00
gc_relocate_operand.ll [gc.statepoint] Change gc.statepoint intrinsic's return type to token type instead of i32 type 2015-12-26 07:54:32 +00:00
gc_relocate_return.ll [Statepoints] Initial support for relocating vectors of pointers 2016-01-07 03:32:11 +00:00
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 Introduce a @llvm.experimental.guard intrinsic 2016-03-31 00:18:46 +00:00
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
inalloca1.ll
inalloca2.ll
inalloca3.ll
inalloca-vararg.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-statepoint2.ll [gc.statepoint] Change gc.statepoint intrinsic's return type to token type instead of i32 type 2015-12-26 07:54:32 +00:00
invalid-statepoint.ll [gc.statepoint] Change gc.statepoint intrinsic's return type to token type instead of i32 type 2015-12-26 07:54:32 +00:00
invoke.ll [coroutines] Part 4[ab]: Coroutine Devirtualization: Lower coro.resume and coro.destroy. 2016-08-04 20:30:07 +00:00
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-init2.ll
llvm.used-invalid-init.ll
llvm.used-invalid-type2.ll
llvm.used-invalid-type.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 IR: Give 'DI' prefix to debug info metadata 2015-04-29 16:38:44 +00:00
mdcompositetype-templateparams.ll IR: Give 'DI' prefix to debug info metadata 2015-04-29 16:38:44 +00:00
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 Add function importing info from samplepgo profile to the module summary. 2017-02-28 18:09:44 +00:00
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 [Verifier] Add more tests related to non-integral pointers 2016-08-02 23:32:53 +00:00
operand-bundles.ll Add a "gc-transition" operand bundle 2016-01-20 19:50:25 +00:00
PhiGrouping.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 Move the personality function from LandingPadInst to Function 2015-06-17 20:52:32 +00:00
README.txt
recursive-struct-param.ll
recursive-type-1.ll
recursive-type-2.ll
recursive-type-3.ll
resume.ll Included test for r277360. 2016-08-01 18:07:19 +00:00
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
SelfReferential.ll
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
swifterror2.ll Swift Calling Convention: add swifterror attribute. 2016-04-01 21:41:15 +00:00
swifterror3.ll Swift Calling Convention: add swifterror attribute. 2016-04-01 21:41:15 +00:00
swifterror.ll Swift Calling Convention: add swifterror attribute. 2016-04-01 21:41:15 +00:00
swiftself.ll Swift Calling Convention: add swiftself attribute. 2016-03-29 17:37:21 +00:00
tbaa-allowed.ll [Verifier] Allow TBAA metadata on atomicrmw and atomiccmpxchg 2016-12-15 21:23:44 +00:00
tbaa.ll Move the stripping of invalid debug info from the Verifier to AutoUpgrade. 2017-10-02 18:31:29 +00:00
token1.ll [IR] Add token types 2015-08-14 05:09:07 +00:00
token2.ll [IR] Add token types 2015-08-14 05:09:07 +00:00
token3.ll [IR] Add token types 2015-08-14 05:09:07 +00:00
token4.ll [IR] Add token types 2015-08-14 05:09:07 +00:00
token5.ll [IR] Add token types 2015-08-14 05:09:07 +00:00
token6.ll [IR] Add token types 2015-08-14 05:09:07 +00:00
token7.ll [IR] Add token types 2015-08-14 05:09:07 +00:00
unsized-types.ll [IR] Disallow loading and storing unsized types 2016-06-01 16:13:10 +00:00
varargs-intrinsic.ll
variant-part.ll Add DWARF for discriminated unions 2018-02-06 23:45:59 +00:00
writeonly.ll Add writeonly IR attribute 2016-07-04 08:01:29 +00:00

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.