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* Implemented Support of IA interrupt and exception handlers:Amjad Aboud2015-12-211-0/+2
| | | | | | | | http://lists.llvm.org/pipermail/cfe-dev/2015-September/045171.html Differential Revision: http://reviews.llvm.org/D15567 llvm-svn: 256155
* Add InaccessibleMemOnly and inaccessibleMemOrArgMemOnly attributesVaivaswatha Nagaraj2015-12-161-0/+4
| | | | | | | | | | | | | | | | | | Summary: This patch introduces two new function attributes InaccessibleMemOnly: This attribute indicates that the function may only access memory that is not accessible by the program/IR being compiled. This is a weaker form of ReadNone. inaccessibleMemOrArgMemOnly: This attribute indicates that the function may only access memory that is either not accessible by the program/IR being compiled, or is pointed to by its pointer arguments. This is a weaker form of ArgMemOnly Test cases have been updated. This revision uses this (https://github.com/llvm-mirror/llvm/commit/d001932f3a8aa1ebd1555162fdce365f011bc292) as reference. Reviewers: jmolloy, hfinkel Subscribers: reames, joker.eph, llvm-commits Differential Revision: http://reviews.llvm.org/D15499 llvm-svn: 255778
* add fast-math-flags to 'call' instructions (PR21290)Sanjay Patel2015-12-141-12/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds optional fast-math-flags (the same that apply to fmul/fadd/fsub/fdiv/frem/fcmp) to call instructions in IR. Follow-up patches would use these flags in LibCallSimplifier, add support to clang, and extend FMF to the DAG for calls. Motivating example: %y = fmul fast float %x, %x %z = tail call float @sqrtf(float %y) We'd like to be able to optimize sqrt(x*x) into fabs(x). We do this today using a function-wide attribute for unsafe-math, but we really want to trigger on the instructions themselves: %z = tail call fast float @sqrtf(float %y) because in an LTO build it's possible that calls with fast semantics have been inlined into a function with non-fast semantics. The code changes and tests are based on the recent commits that added "notail": http://reviews.llvm.org/rL252368 and added FMF to fcmp: http://reviews.llvm.org/rL241901 Differential Revision: http://reviews.llvm.org/D14707 llvm-svn: 255555
* [IR] Remove terminatepadDavid Majnemer2015-12-141-38/+0
| | | | | | | | | | | | | It turns out that terminatepad gives little benefit over a cleanuppad which calls the termination function. This is not sufficient to implement fully generic filters but MSVC doesn't support them which makes terminatepad a little over-designed. Depends on D15478. Differential Revision: http://reviews.llvm.org/D15479 llvm-svn: 255522
* [IR] Reformulate LLVM's EH funclet IRDavid Majnemer2015-12-121-175/+109
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While we have successfully implemented a funclet-oriented EH scheme on top of LLVM IR, our scheme has some notable deficiencies: - catchendpad and cleanupendpad are necessary in the current design but they are difficult to explain to others, even to seasoned LLVM experts. - catchendpad and cleanupendpad are optimization barriers. They cannot be split and force all potentially throwing call-sites to be invokes. This has a noticable effect on the quality of our code generation. - catchpad, while similar in some aspects to invoke, is fairly awkward. It is unsplittable, starts a funclet, and has control flow to other funclets. - The nesting relationship between funclets is currently a property of control flow edges. Because of this, we are forced to carefully analyze the flow graph to see if there might potentially exist illegal nesting among funclets. While we have logic to clone funclets when they are illegally nested, it would be nicer if we had a representation which forbade them upfront. Let's clean this up a bit by doing the following: - Instead, make catchpad more like cleanuppad and landingpad: no control flow, just a bunch of simple operands; catchpad would be splittable. - Introduce catchswitch, a control flow instruction designed to model the constraints of funclet oriented EH. - Make funclet scoping explicit by having funclet instructions consume the token produced by the funclet which contains them. - Remove catchendpad and cleanupendpad. Their presence can be inferred implicitly using coloring information. N.B. The state numbering code for the CLR has been updated but the veracity of it's output cannot be spoken for. An expert should take a look to make sure the results are reasonable. Reviewers: rnk, JosephTremoulet, andrew.w.kaylor Differential Revision: http://reviews.llvm.org/D15139 llvm-svn: 255422
* Macro debug info support in LLVM IRAmjad Aboud2015-12-101-2/+62
| | | | | | | | Introduced DIMacro and DIMacroFile debug info metadata in the LLVM IR to support macros. Differential Revision: http://reviews.llvm.org/D14687 llvm-svn: 255245
* [CXX TLS calling convention] Add CXX TLS calling convention.Manman Ren2015-12-041-0/+2
| | | | | | | | | | | | | | | | | | | | | This commit adds a new target-independent calling convention for C++ TLS access functions. It aims to minimize overhead in the caller by perserving as many registers as possible. The target-specific implementation for X86-64 is defined as following: Arguments are passed as for the default C calling convention The same applies for the return value(s) The callee preserves all GPRs - except RAX and RDI The access function makes C-style TLS function calls in the entry and exit block, C-style TLS functions save a lot more registers than normal calls. The added calling convention ties into the existing implementation of the C-style TLS functions, so we can't simply use existing calling conventions such as preserve_mostcc. rdar://9001553 llvm-svn: 254737
* AsmParser: Make the code for parsing unnamed aliases more closely resemble ↵Peter Collingbourne2015-11-251-18/+27
| | | | | | | | | | that for unnamed globals. This fixes parsing of forward references to unnamed aliases. While here, remove an unnecessary isa check. llvm-svn: 254054
* update comment and error message; NFCSanjay Patel2015-11-191-1/+4
| | | | | | | 'notail' was added in: http://reviews.llvm.org/rL252368 llvm-svn: 253580
* [OperandBundles] Tighten OperandBundleDef's interface; NFCSanjoy Das2015-11-181-7/+5
| | | | llvm-svn: 253446
* [IR] Add support for empty tokensDavid Majnemer2015-11-111-0/+6
| | | | | | | | | | | | | | When working with tokens, it is often the case that one has instructions which consume a token and produce a new token. Currently, we have no mechanism to represent an initial token state. Instead, we can create a notional "empty token" by inventing a new constant which captures the semantics we would like. This new constant is called ConstantTokenNone and is written textually as "token none". Differential Revision: http://reviews.llvm.org/D14581 llvm-svn: 252811
* Add 'notail' marker for call instructions.Akira Hatanaka2015-11-061-0/+1
| | | | | | | | | | | | This marker prevents optimization passes from adding 'tail' or 'musttail' markers to a call. Is is used to prevent tail call optimization from being performed on the call. rdar://problem/22667622 Differential Revision: http://reviews.llvm.org/D12923 llvm-svn: 252368
* Add a new attribute: norecurseJames Molloy2015-11-061-0/+1
| | | | | | This attribute allows the compiler to assume that the function never recurses into itself, either directly or indirectly (transitively). This can be used among other things to demote global variables to locals. llvm-svn: 252282
* Revert r252249 (and r252255, r252258), "[WinEH] Clone funclets with multiple ↵NAKAMURA Takumi2015-11-061-2/+1
| | | | | | | | parents" It behaved flaky due to iterating pointer key values on std::set and std::map. llvm-svn: 252279
* [WinEH] Clone funclets with multiple parentsAndrew Kaylor2015-11-061-1/+2
| | | | | | | | | | Windows EH funclets need to always return to a single parent funclet. However, it is possible for earlier optimizations to combine funclets (probably based on one funclet having an unreachable terminator) in such a way that this condition is violated. These changes add code to the WinEHPrepare pass to detect situations where a funclet has multiple parents and clone such funclets, fixing up the unwind and catch return edges so that each copy of the funclet returns to the correct parent funclet. Differential Revision: http://reviews.llvm.org/D13274?id=39098 llvm-svn: 252249
* DI: Reverse direction of subprogram -> function edge.Peter Collingbourne2015-11-051-8/+7
| | | | | | | | | | | | | | | | | | | | | | | Previously, subprograms contained a metadata reference to the function they described. Because most clients need to get or set a subprogram for a given function rather than the other way around, this created unneeded inefficiency. For example, many passes needed to call the function llvm::makeSubprogramMap() to build a mapping from functions to subprograms, and the IR linker needed to fix up function references in a way that caused quadratic complexity in the IR linking phase of LTO. This change reverses the direction of the edge by storing the subprogram as function-level metadata and removing DISubprogram's function field. Since this is an IR change, a bitcode upgrade has been provided. Fixes PR23367. An upgrade script for textual IR for out-of-tree clients is attached to the PR. Differential Revision: http://reviews.llvm.org/D14265 llvm-svn: 252219
* AsmParser: Remove implicit ilist iterator conversions, NFCDuncan P. N. Exon Smith2015-10-201-5/+4
| | | | llvm-svn: 250791
* HHVM calling conventions.Maksim Panchenko2015-09-291-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | HHVM calling convention, hhvmcc, is used by HHVM JIT for functions in translated cache. We currently support LLVM back end to generate code for X86-64 and may support other architectures in the future. In HHVM calling convention any GP register could be used to pass and return values, with the exception of R12 which is reserved for thread-local area and is callee-saved. Other than R12, we always pass RBX and RBP as args, which are our virtual machine's stack pointer and frame pointer respectively. When we enter translation cache via hhvmcc function, we expect the stack to be aligned at 16 bytes, i.e. skewed by 8 bytes as opposed to standard ABI alignment. This affects stack object alignment and stack adjustments for function calls. One extra calling convention, hhvm_ccc, is used to call C++ helpers from HHVM's translation cache. It is almost identical to standard C calling convention with an exception of first argument which is passed in RBP (before we use RDI, RSI, etc.) Differential Revision: http://reviews.llvm.org/D12681 llvm-svn: 248832
* [Bitcode][Asm] Teach LLVM to read and write operand bundles.Sanjoy Das2015-09-241-10/+65
| | | | | | | | | | | | | | | | | | Summary: This also adds the first set of tests for operand bundles. The optimizer has not been audited to ensure that it does the right thing with operand bundles. Depends on D12456. Reviewers: reames, chandlerc, majnemer, dexonsmith, kmod, JosephTremoulet, rnk, bogner Subscribers: maksfb, llvm-commits Differential Revision: http://reviews.llvm.org/D12457 llvm-svn: 248551
* auto and range-for-ify some things to make changing container types a bit ↵David Blaikie2015-09-211-36/+25
| | | | | | easier in the (possibly near) future llvm-svn: 248212
* Support align attribute for return valuesArtur Pilipenko2015-09-181-1/+7
| | | | | | | | Reviewed By: reames Differential Revision: http://reviews.llvm.org/D12844 llvm-svn: 247984
* Revert "[opaque pointer type] Pass GlobalAlias the actual pointer type ↵David Blaikie2015-09-141-2/+3
| | | | | | | | | | | | | | | | | rather than decomposing it into pointee type + address space" This was a flawed change - it just caused the getElementType call to be deferred until later, when we really need to remove it. Now that the IR for GlobalAliases has been updated, the root cause is addressed that way instead and this change is no longer needed (and in fact gets in the way - because we want to pass the pointee type directly down further). Follow up patches to push this through GlobalValue, bitcode format, etc, will come along soon. This reverts commit 236160. llvm-svn: 247585
* [opaque pointer type] Add textual IR support for explicit type parameter for ↵David Blaikie2015-09-111-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | global aliases update.py: import fileinput import sys import re alias_match_prefix = r"(.*(?:=|:|^)\s*(?:external |)(?:(?:private|internal|linkonce|linkonce_odr|weak|weak_odr|common|appending|extern_weak|available_externally) )?(?:default |hidden |protected )?(?:dllimport |dllexport )?(?:unnamed_addr |)(?:thread_local(?:\([a-z]*\))? )?alias" plain = re.compile(alias_match_prefix + r" (.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|addrspacecast|\[\[[a-zA-Z]|\{\{).*$)") cast = re.compile(alias_match_prefix + r") ((?:bitcast|inttoptr|addrspacecast)\s*\(.* to (.*?)(| addrspace\(\d+\) *)\*\)\s*(?:;.*)?$)") gep = re.compile(alias_match_prefix + r") ((?:getelementptr)\s*(?:inbounds)?\s*\((?P<type>.*), (?P=type)(?:\s*addrspace\(\d+\)\s*)?\* .*\)\s*(?:;.*)?$)") def conv(line): m = re.match(cast, line) if m: return m.group(1) + " " + m.group(3) + ", " + m.group(2) m = re.match(gep, line) if m: return m.group(1) + " " + m.group(3) + ", " + m.group(2) m = re.match(plain, line) if m: return m.group(1) + ", " + m.group(2) + m.group(3) + "*" + m.group(4) + "\n" return line for line in sys.stdin: sys.stdout.write(conv(line)) apply.sh: for name in "$@" do python3 `dirname "$0"`/update.py < "$name" > "$name.tmp" && mv "$name.tmp" "$name" rm -f "$name.tmp" done The actual commands: From llvm/src: find test/ -name *.ll | xargs ./apply.sh From llvm/src/tools/clang: find test/ -name *.mm -o -name *.m -o -name *.cpp -o -name *.c | xargs -I '{}' ../../apply.sh "{}" From llvm/src/tools/polly: find test/ -name *.ll | xargs ./apply.sh llvm-svn: 247378
* Fix PR 24633 - Handle undef values when parsing standalone constants.Alex Lorenz2015-09-091-0/+1
| | | | llvm-svn: 247145
* Allow global address space forward decls using IDs in .ll files.Karl Schimpf2015-09-031-16/+13
| | | | | | | | | | Summary: This fixes bugzilla bug 24656. Fixes the case where there is a forward reference to a global variable using an ID (i.e. @0). It does this by passing the address space of the initializer pointer for which the forward referenced global is used. llvm-svn: 246788
* Fix assertion failure in LLParser::ConvertValIDToValueKarl Schimpf2015-09-031-2/+1
| | | | | | | | | | | Summary: Fixes bug 24645. Problem appears to be that the type may be undefined when ConvertValIDToValue is called. Reviewers: kcc Subscribers: llvm-commits llvm-svn: 246779
* [WinEH] Add cleanupendpad instructionJoseph Tremoulet2015-09-031-0/+30
| | | | | | | | | | | | | | | | | | | | | | | Summary: Add a `cleanupendpad` instruction, used to mark exceptional exits out of cleanups (for languages/targets that can abort a cleanup with another exception). The `cleanupendpad` instruction is similar to the `catchendpad` instruction in that it is an EH pad which is the target of unwind edges in the handler and which itself has an unwind edge to the next EH action. The `cleanupendpad` instruction, similar to `cleanupret` has a `cleanuppad` argument indicating which cleanup it exits. The unwind successors of a `cleanuppad`'s `cleanupendpad`s must agree with each other and with its `cleanupret`s. Update WinEHPrepare (and docs/tests) to accomodate `cleanupendpad`. Reviewers: rnk, andrew.w.kaylor, majnemer Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D12433 llvm-svn: 246751
* DI: Require subprogram definitions to be distinctDuncan P. N. Exon Smith2015-08-281-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | As a follow-up to r246098, require `DISubprogram` definitions (`isDefinition: true`) to be 'distinct'. Specifically, add an assembler check, a verifier check, and bitcode upgrading logic to combat testcase bitrot after the `DIBuilder` change. While working on the testcases, I realized that test/Linker/subprogram-linkonce-weak-odr.ll isn't relevant anymore. Its purpose was to check for a corner case in PR22792 where two subprogram definitions match exactly and share the same metadata node. The new verifier check, requiring that subprogram definitions are 'distinct', precludes that possibility. I updated almost all the IR with the following script: git grep -l -E -e '= !DISubprogram\(.* isDefinition: true' | grep -v test/Bitcode | xargs sed -i '' -e 's/= \(!DISubprogram(.*, isDefinition: true\)/= distinct \1/' Likely some variant of would work for out-of-tree testcases. llvm-svn: 246327
* [WinEH] Require token linkage in EH pad/ret signaturesJoseph Tremoulet2015-08-231-48/+136
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: WinEHPrepare is going to require that cleanuppad and catchpad produce values of token type which are consumed by any cleanupret or catchret exiting the pad. This change updates the signatures of those operators to require/enforce that the type produced by the pads is token type and that the rets have an appropriate argument. The catchpad argument of a `CatchReturnInst` must be a `CatchPadInst` (and similarly for `CleanupReturnInst`/`CleanupPadInst`). To accommodate that restriction, this change adds a notion of an operator constraint to both LLParser and BitcodeReader, allowing appropriate sentinels to be constructed for forward references and appropriate error messages to be emitted for illegal inputs. Also add a verifier rule (noted in LangRef) that a catchpad with a catchpad predecessor must have no other predecessors; this ensures that WinEHPrepare will see the expected linear relationship between sibling catches on the same try. Lastly, remove some superfluous/vestigial casts from instruction operand setters operating on BasicBlocks. Reviewers: rnk, majnemer Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D12108 llvm-svn: 245797
* AsmParser: Save and restore the parsing state for types using SlotMapping.Alex Lorenz2015-08-211-1/+20
| | | | | | | | | | | | | | | | | | | | | This commit extends the 'SlotMapping' structure and includes mappings for named and numbered types in it. The LLParser is extended accordingly to fill out those mappings at the end of module parsing. This information is useful when we want to parse standalone constant values at a later stage using the 'parseConstantValue' method. The constant values can be constant expressions, which can contain references to types. In order to parse such constant values, we have to restore the internal named and numbered mappings for the types in LLParser, otherwise the parser will report a parsing error. Therefore, this commit also introduces a new method called 'restoreParsingState' to LLParser, which uses the slot mappings to restore some of its internal parsing state. This commit is required to serialize constant value pointers in the machine memory operands for the MIR format. Reviewers: Duncan P. N. Exon Smith llvm-svn: 245740
* [IR] Give catchret an optional 'return value' operandDavid Majnemer2015-08-151-3/+14
| | | | | | | | | | | Some personality routines require funclet exit points to be clearly marked, this is done by producing a token at the funclet pad and consuming it at the corresponding ret instruction. CleanupReturnInst already had a spot for this operand but CatchReturnInst did not. Other personality routines don't need to use this which is why it has been made optional. llvm-svn: 245149
* Fix with a bit more care. (but only a bit)David Blaikie2015-08-031-2/+3
| | | | llvm-svn: 243903
* Try to fix the build for C++ standard libraries missing std::map::emplaceDavid Blaikie2015-08-031-3/+2
| | | | llvm-svn: 243899
* Recommit r243824: -Wdeprecated-clean: Fix cases of violating the rule of 5 ↵David Blaikie2015-08-031-9/+12
| | | | | | | | | | | | in ways that are deprecated in C++11 This reverts commit r243888, recommitting r243824. This broke the Windows build due to a difference in the C++ standard library implementation. Using emplace/forward_as_tuple should ensure there's no need to copy ValIDs. llvm-svn: 243896
* Revert "-Wdeprecated-clean: Fix cases of violating the rule of 5 in ways ↵Reid Kleckner2015-08-031-9/+6
| | | | | | | | | | that are deprecated in C++11" This reverts commit r243824. It broke the build on Windows. llvm-svn: 243888
* DI: Disallow uniquable DICompileUnitsDuncan P. N. Exon Smith2015-08-031-6/+7
| | | | | | | | | | | | | | | | | | Since r241097, `DIBuilder` has only created distinct `DICompileUnit`s. The backend is liable to start relying on that (if it hasn't already), so make uniquable `DICompileUnit`s illegal and automatically upgrade old bitcode. This is a nice cleanup, since we can remove an unnecessary `DenseSet` (and the associated uniquing info) from `LLVMContextImpl`. Almost all the testcases were updated with this script: git grep -e '= !DICompileUnit' -l -- test | grep -v test/Bitcode | xargs sed -i '' -e 's,= !DICompileUnit,= distinct !DICompileUnit,' I imagine something similar should work for out-of-tree testcases. llvm-svn: 243885
* Currently string attributes on function arguments/return values can be ↵Artur Pilipenko2015-08-031-7/+24
| | | | | | | | | | | | | | | generated using LLVM API. However they are not supported in parser. So, the following scenario will fail: * generate function with string attribute using API, * dump it in LL format, * try to parse. Add parser support for string attributes to fix the issue. Reviewed By: reames, hfinkel Differential Revision: http://reviews.llvm.org/D11058 llvm-svn: 243877
* De-constify pointers to Type since they can't be modified. NFCCraig Topper2015-08-011-2/+2
| | | | | | This was already done in most places a while ago. This just fixes the ones that crept in over time. llvm-svn: 243842
* -Wdeprecated-clean: Fix cases of violating the rule of 5 in ways that are ↵David Blaikie2015-08-011-6/+9
| | | | | | deprecated in C++11 llvm-svn: 243824
* DI: Remove DW_TAG_arg_variable and DW_TAG_auto_variableDuncan P. N. Exon Smith2015-07-311-5/+6
| | | | | | | | | | | | | | | | | | | | | | | | Remove the fake `DW_TAG_auto_variable` and `DW_TAG_arg_variable` tags, using `DW_TAG_variable` in their place Stop exposing the `tag:` field at all in the assembly format for `DILocalVariable`. Most of the testcase updates were generated by the following sed script: find test/ -name "*.ll" -o -name "*.mir" | xargs grep -l 'DILocalVariable' | xargs sed -i '' \ -e 's/tag: DW_TAG_arg_variable, //' \ -e 's/tag: DW_TAG_auto_variable, //' There were only a handful of tests in `test/Assembly` that I needed to update by hand. (Note: a follow-up could change `DILocalVariable::DILocalVariable()` to set the tag to `DW_TAG_formal_parameter` instead of `DW_TAG_variable` (as appropriate), instead of having that logic magically in the backend in `DbgVariable`. I've added a FIXME to that effect.) llvm-svn: 243774
* New EH representation for MSVC compatibilityDavid Majnemer2015-07-311-0/+161
| | | | | | | | | | This introduces new instructions neccessary to implement MSVC-compatible exception handling support. Most of the middle-end and none of the back-end haven't been audited or updated to take them into account. Differential Revision: http://reviews.llvm.org/D11097 llvm-svn: 243766
* [opaque pointers] Avoid the use of pointee types when parsing inline asm in IRDavid Blaikie2015-07-271-6/+9
| | | | | | | | | | | | | | When parsing calls to inline asm the pointee type (of the pointer type representing the value type of the InlineAsm value) was used. To avoid using it, use the ValID structure to ferry the FunctionType directly through to the InlineAsm construction. This is a bit of a workaround - alternatively the inline asm could explicitly describe the type but that'd be verbose/redundant in the IR and so long as the inline asm calls directly in the context of a call or invoke, this should suffice. llvm-svn: 243349
* AsmParser: Add a function to parse a standalone constant value.Alex Lorenz2015-07-171-0/+35
| | | | | | | | | | | | | | This commit extends the interface provided by the AsmParser library by adding a function that allows the user to parse a standalone contant value. This change is useful for MIR serialization, as it will allow the MIR Parser to parse the constant values in a machine constant pool. Reviewers: Duncan P. N. Exon Smith Differential Revision: http://reviews.llvm.org/D10280 llvm-svn: 242579
* Add argmemonly attribute.Igor Laevsky2015-07-111-29/+38
| | | | | | | | This change adds new attribute called "argmemonly". Function marked with this attribute can only access memory through it's argument pointers. This attribute directly corresponds to the "OnlyAccessesArgumentPointees" ModRef behaviour in alias analysis. Differential Revision: http://reviews.llvm.org/D10398 llvm-svn: 241979
* Add support for fast-math flags to the FCmp instruction.James Molloy2015-07-101-2/+11
| | | | | | | | | | | | | | FCmp behaves a lot like a floating-point binary operator in many ways, and can benefit from fast-math information. Flags such as nsz and nnan can affect if this fcmp (in combination with a select) can be treated as a fminnum/fmaxnum operation. This adds backwards-compatible bitcode support, IR parsing and writing, LangRef changes and IRBuilder changes. I'll need to audit InstSimplify and InstCombine in a followup to find places where flags should be copied. llvm-svn: 241901
* Revert the new EH instructionsDavid Majnemer2015-07-101-161/+0
| | | | | | This reverts commits r241888-r241891, I didn't mean to commit them. llvm-svn: 241893
* Address Joseph's review comments.David Majnemer2015-07-101-2/+2
| | | | llvm-svn: 241890
* New EH representation for MSVC compatibilityDavid Majnemer2015-07-101-0/+161
| | | | | | | | | | | | | | | Summary: This introduces new instructions neccessary to implement MSVC-compatible exception handling support. Most of the middle-end and none of the back-end haven't been audited or updated to take them into account. Reviewers: rnk, JosephTremoulet, reames, nlewycky, rjmccall Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D11041 llvm-svn: 241888
* Extended syntax of vector version of getelementptr instruction.Elena Demikhovsky2015-07-091-7/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | The justification of this change is here: http://lists.cs.uiuc.edu/pipermail/llvmdev/2015-March/082989.html According to the current GEP syntax, vector GEP requires that each index must be a vector with the same number of elements. %A = getelementptr i8, <4 x i8*> %ptrs, <4 x i64> %offsets In this implementation I let each index be or vector or scalar. All vector indices must have the same number of elements. The scalar value will mean the splat vector value. (1) %A = getelementptr i8, i8* %ptr, <4 x i64> %offsets or (2) %A = getelementptr i8, <4 x i8*> %ptrs, i64 %offset In all cases the %A type is <4 x i8*> In the case (2) we add the same offset to all pointers. The case (1) covers C[B[i]] case, when we have the same base C and different offsets B[i]. The documentation is updated. http://reviews.llvm.org/D10496 llvm-svn: 241788
* Add a DIModule metadata node to the IR.Adrian Prantl2015-06-291-0/+18
| | | | | | | | | | | | | | | | | | | It is meant to be used to record modules @imported by the current compile unit, so a debugger an import the same modules to replicate this environment before dropping into the expression evaluator. DIModule is a sibling to DINamespace and behaves quite similarly. In addition to the name of the module it also records the module configuration details that are necessary to uniquely identify the module. This includes the configuration macros (e.g., -DNDEBUG), the include path where the module.map file is to be found, and the isysroot. The idea is that the backend will turn this into a DW_TAG_module. http://reviews.llvm.org/D9614 rdar://problem/20965932 llvm-svn: 241017
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