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Florian Hahn 1f9320a4cd Align definition of DW_OP_plus with DWARF spec [3/3] 
Summary:
This patch is part of 3 patches that together form a single patch, but must be introduced in stages in order not to break things.
 
The way that LLVM interprets DW_OP_plus in DIExpression nodes is basically that of the DW_OP_plus_uconst operator since LLVM expects an unsigned constant operand. This unnecessarily restricts the DW_OP_plus operator, preventing it from being used to describe the evaluation of runtime values on the expression stack. These patches try to align the semantics of DW_OP_plus and DW_OP_minus with that of the DWARF definition, which pops two elements off the expression stack, performs the operation and pushes the result back on the stack.
 
This is done in three stages:
• The first patch (LLVM) adds support for DW_OP_plus_uconst.
• The second patch (Clang) contains changes all its uses from DW_OP_plus to DW_OP_plus_uconst.
• The third patch (LLVM) changes the semantics of DW_OP_plus and DW_OP_minus to be in line with its DWARF meaning. This patch includes the bitcode upgrade from legacy DIExpressions.

Patch by Sander de Smalen.

Reviewers: echristo, pcc, aprantl

Reviewed By: aprantl

Subscribers: fhahn, javed.absar, aprantl, llvm-commits

Differential Revision: https://reviews.llvm.org/D33894

llvm-svn: 305386
2017-06-14 13:14:38 +00:00
..
Inputs Bitcode: Introduce BitcodeWriter interface. 2016-11-29 20:43:47 +00:00
2006-12-11-Cast-ConstExpr.ll
2009-06-11-FirstClassAggregateConstant.ll
aggregateInstructions.3.2.ll
aggregateInstructions.3.2.ll.bc
anon-functions.ll
arm32_neon_vcnt_upgrade.ll
atomic.ll
attributes-3.3.ll
attributes-3.3.ll.bc
attributes.ll Add speculatable function attribute 2017-04-28 20:25:27 +00:00
auto_upgrade_intrinsics.bc
avr-calling-conventions.ll
avr-calling-conventions.ll.bc
binaryFloatInstructions.3.2.ll
binaryFloatInstructions.3.2.ll.bc
binaryIntInstructions.3.2.ll
binaryIntInstructions.3.2.ll.bc
bitcode-wrapper-header-armv7m.ll
bitcode-wrapper-header-x86_64.ll
bitwiseInstructions.3.2.ll
bitwiseInstructions.3.2.ll.bc
blockaddress.ll
calling-conventions.3.2.ll
calling-conventions.3.2.ll.bc
case-ranges-3.3.ll
case-ranges-3.3.ll.bc
cmpxchg-upgrade.ll
cmpxchg-upgrade.ll.bc
cmpxchg.3.6.ll
cmpxchg.3.6.ll.bc
compatibility-3.6.ll Change the default attributes for llvm.prefetch to inaccessiblemem_or_argmemonly 2017-03-25 20:20:23 +00:00
compatibility-3.6.ll.bc
compatibility-3.7.ll Change the default attributes for llvm.prefetch to inaccessiblemem_or_argmemonly 2017-03-25 20:20:23 +00:00
compatibility-3.7.ll.bc
compatibility-3.8.ll Change the default attributes for llvm.prefetch to inaccessiblemem_or_argmemonly 2017-03-25 20:20:23 +00:00
compatibility-3.8.ll.bc
compatibility-3.9.ll Change the default attributes for llvm.prefetch to inaccessiblemem_or_argmemonly 2017-03-25 20:20:23 +00:00
compatibility-3.9.ll.bc [Bitcode] Add compatibility test for the 3.9 release 2016-09-09 17:24:31 +00:00
compatibility-4.0.ll Change the default attributes for llvm.prefetch to inaccessiblemem_or_argmemonly 2017-03-25 20:20:23 +00:00
compatibility-4.0.ll.bc [Bitcode] Add compatibility test for the 4.0 release 2017-03-17 17:53:26 +00:00
compatibility.ll AMDGPU: Add AMDGPU_HS calling convention 2017-05-02 15:41:10 +00:00
constantsTest.3.2.ll
constantsTest.3.2.ll.bc
conversionInstructions.3.2.ll
conversionInstructions.3.2.ll.bc
debug-loc-again.ll
DICompileUnit-no-DWOId.ll
DICompileUnit-no-DWOId.ll.bc
DIExpression-4.0.ll [DIExpression] Introduce a dedicated DW_OP_LLVM_fragment operation 2016-12-05 18:04:47 +00:00
DIExpression-4.0.ll.bc [DIExpression] Introduce a dedicated DW_OP_LLVM_fragment operation 2016-12-05 18:04:47 +00:00
DIExpression-aggresult.ll PR32382: Fix emitting complex DWARF expressions. 2017-04-18 01:21:53 +00:00
DIExpression-aggresult.ll.bc PR32382: Fix emitting complex DWARF expressions. 2017-04-18 01:21:53 +00:00
DIExpression-deref.ll Align definition of DW_OP_plus with DWARF spec [3/3] 2017-06-14 13:14:38 +00:00
DIExpression-deref.ll.bc PR32382: Fix emitting complex DWARF expressions. 2017-04-18 01:21:53 +00:00
DIExpression-minus-upgrade.ll Align definition of DW_OP_plus with DWARF spec [3/3] 2017-06-14 13:14:38 +00:00
DIExpression-minus-upgrade.ll.bc Align definition of DW_OP_plus with DWARF spec [3/3] 2017-06-14 13:14:38 +00:00
diglobalvariable-3.8.ll [IR] Remove the DIExpression field from DIGlobalVariable. 2016-12-20 02:09:43 +00:00
diglobalvariable-3.8.ll.bc [IR] Remove the DIExpression field from DIGlobalVariable. 2016-12-20 02:09:43 +00:00
DIGlobalVariableExpression2.ll Fix bitcode upgrade for DIGlobalVariables with a var: field. 2017-02-08 17:44:43 +00:00
DIGlobalVariableExpression2.ll.bc Fix bitcode upgrade for DIGlobalVariables with a var: field. 2017-02-08 17:44:43 +00:00
DIGlobalVariableExpression.ll Align definition of DW_OP_plus with DWARF spec [3/3] 2017-06-14 13:14:38 +00:00
DIGlobalVariableExpression.ll.bc Fix the bitcode upgrade for DIGlobalVariable in a DIImportedEntity context. 2017-02-07 17:35:41 +00:00
dilocalvariable-3.9.ll DebugInfo: add bitcode upgrade test for alignment 2016-10-26 08:34:19 +00:00
dilocalvariable-3.9.ll.bc DebugInfo: add bitcode upgrade test for alignment 2016-10-26 08:34:19 +00:00
DILocalVariable-explicit-tags.ll
DILocalVariable-explicit-tags.ll.bc
DINamespace.ll Remove line and file from DINamespace. 2017-04-28 22:25:46 +00:00
DINamespace.ll.bc Add DWARF debug info support for C++11 inline namespaces. 2016-11-03 19:42:02 +00:00
DISubprogram-distinct-definitions.ll
DISubprogram-distinct-definitions.ll.bc
dityperefs-3.8.ll Fix the bitcode upgrade for DIGlobalVariable in a DIImportedEntity context. 2017-02-07 17:35:41 +00:00
dityperefs-3.8.ll.bc
drop-debug-info.3.5.ll
drop-debug-info.3.5.ll.bc
extractelement.ll
fcmp-fast.ll
flags.ll
function-encoding-rel-operands.ll
function-local-metadata.3.5.ll
function-local-metadata.3.5.ll.bc
global-variables.3.2.ll
global-variables.3.2.ll.bc
globalvariable-attributes.ll [IR] Allow attributes with global variables 2017-05-11 12:28:08 +00:00
highLevelStructure.3.2.ll
highLevelStructure.3.2.ll.bc
identification.ll
inalloca.ll
invalid.ll
invalid.ll.bc
invalid.test Bitcode: Introduce initial multi-module reader API. 2016-11-16 21:44:45 +00:00
linkage-types-3.2.ll
linkage-types-3.2.ll.bc
local-linkage-default-visibility.3.4.ll
local-linkage-default-visibility.3.4.ll.bc
mdnodes-distinct-in-post-order.ll Add an index for Module Metadata record in the bitcode 2016-12-28 22:30:28 +00:00
mdnodes-distinct-nodes-break-cycles.ll Add an index for Module Metadata record in the bitcode 2016-12-28 22:30:28 +00:00
mdnodes-distinct-nodes-first.ll Add an index for Module Metadata record in the bitcode 2016-12-28 22:30:28 +00:00
mdnodes-in-post-order.ll Add an index for Module Metadata record in the bitcode 2016-12-28 22:30:28 +00:00
mdstring-high-bits.ll
memInstructions.3.2.ll
memInstructions.3.2.ll.bc
metadata-2.ll
metadata-function-blocks.ll Add an index for Module Metadata record in the bitcode 2016-12-28 22:30:28 +00:00
metadata-only-empty-string.ll
metadata-strings.ll
metadata.3.5.ll
metadata.3.5.ll.bc
metadata.ll
miscInstructions.3.2.ll
miscInstructions.3.2.ll.bc
module_hash.ll
multi-module.ll Bitcode: Add a more comprehensive multi-module test now that we have both llvm-cat and llvm-modextract. 2016-11-29 21:55:09 +00:00
null-type.ll Bitcode: Introduce initial multi-module reader API. 2016-11-16 21:44:45 +00:00
null-type.ll.bc
old-aliases.ll
old-aliases.ll.bc
operand-bundles-bc-analyzer.ll
operand-bundles.ll
padding.test
pr18704.ll
pr18704.ll.bc
PR23310.test
ptest-new.ll
ptest-old.ll [X86] Replace 'REQUIRES: x86' in tests with 'REQUIRES: x86-registered-target' which seems to be the correct way to make them run on an x86 build. 2017-06-04 08:21:58 +00:00
select.ll
shuffle.ll
source-filename.test
ssse3_palignr.ll
standardCIntrinsic.3.2.ll
standardCIntrinsic.3.2.ll.bc
summary_version.ll [ThinLTO] Subsume all importing checks into a single flag 2017-01-05 14:32:16 +00:00
tailcall.ll
terminatorInstructions.3.2.ll
terminatorInstructions.3.2.ll.bc
thinlto-alias2.ll [ThinLTO] Record calls to aliases 2016-10-08 16:11:42 +00:00
thinlto-alias.ll Bitcode: Add a string table to the bitcode format. 2017-04-17 17:51:36 +00:00
thinlto-empty-summary-section.ll [ThinLTO] Always emit a summary when compiling in ThinLTO mode 2016-09-20 23:07:17 +00:00
thinlto-function-summary-callgraph-pgo.ll Bitcode: Add a string table to the bitcode format. 2017-04-17 17:51:36 +00:00
thinlto-function-summary-callgraph-profile-summary.ll Restrict call metadata based hotness detection to Sample PGO mode 2017-05-11 23:18:05 +00:00
thinlto-function-summary-callgraph-sample-profile-summary.ll Restrict call metadata based hotness detection to Sample PGO mode 2017-05-11 23:18:05 +00:00
thinlto-function-summary-callgraph.ll [ThinLTO] Reduce unnecessary map lookups during combined summary write 2017-05-31 18:58:11 +00:00
thinlto-function-summary-originalnames.ll Bitcode: Add a string table to the bitcode format. 2017-04-17 17:51:36 +00:00
thinlto-function-summary-refgraph.ll Bitcode: Add a string table to the bitcode format. 2017-04-17 17:51:36 +00:00
thinlto-function-summary.ll Bitcode: Add a string table to the bitcode format. 2017-04-17 17:51:36 +00:00
thinlto-summary-globalvar.ll
thinlto-summary-linkage-types.ll
thinlto-summary-section.ll [ThinLTO] Subsume all importing checks into a single flag 2017-01-05 14:32:16 +00:00
thinlto-type-tests.ll IR: Function summary representation for type tests. 2016-12-21 23:03:45 +00:00
thinlto-type-vcalls.ll IR: Function summary extensions for whole-program devirtualization pass. 2017-02-10 22:29:38 +00:00
thinlto-unused-type-tests.ll IR: Function summary representation for type tests. 2016-12-21 23:03:45 +00:00
upgrade-debug-info-for-profiling.ll Change debug-info-for-profiling from a TargetOption to a function attribute. 2017-02-01 22:45:09 +00:00
upgrade-debug-info-for-profiling.ll.bc Change debug-info-for-profiling from a TargetOption to a function attribute. 2017-02-01 22:45:09 +00:00
upgrade-global-ctors.ll
upgrade-global-ctors.ll.bc
upgrade-linker-options.ll IR: Replace the "Linker Options" module flag with "llvm.linker.options" named metadata. 2017-06-12 20:10:48 +00:00
upgrade-loop-metadata.ll
upgrade-loop-metadata.ll.bc
upgrade-module-flag.ll Fix autoupgrade logic for Objective-C class properties module flag 2016-09-16 00:38:18 +00:00
upgrade-pointer-address-space.ll [DebugInfo] Emit address space with DW_AT_address_class attribute for pointer and reference types 2017-03-08 23:55:44 +00:00
upgrade-pointer-address-space.ll.bc [DebugInfo] Emit address space with DW_AT_address_class attribute for pointer and reference types 2017-03-08 23:55:44 +00:00
upgrade-subprogram-this.ll
upgrade-subprogram-this.ll.bc
upgrade-subprogram.ll
upgrade-subprogram.ll.bc
upgrade-tbaa.ll
use-list-order2.ll
use-list-order.ll
variableArgumentIntrinsic.3.2.ll
variableArgumentIntrinsic.3.2.ll.bc
vectorInstructions.3.2.ll
vectorInstructions.3.2.ll.bc
visibility-styles.3.2.ll
visibility-styles.3.2.ll.bc
vst-forward-declaration.ll
weak-cmpxchg-upgrade.ll
weak-cmpxchg-upgrade.ll.bc
weak-macho-3.5.ll
weak-macho-3.5.ll.bc