Notes:
* llvm::createAsmStreamer: it has been moved to TargetRegistry.h
* (anon ns)::WasmObjectWriter::updateCustomSectionRelocations: remnant of D46335
* COFFAsmParser::ParseSEHRegisterNumber: remnant of D66625
* llvm::CodeViewContext::isValidCVFileNumber: accidentally added by r279847
If prefaced with a %, expand text macros and macro functions in any statement.
Also, prevent expanding text macros in the message of an ECHO directive unless expanded explicitly by the statement expansion operator.
Reviewed By: thakis
Differential Revision: https://reviews.llvm.org/D89740
In text-item contexts, %expr expands to a string containing the results of evaluating `expr`.
Reviewed By: thakis
Differential Revision: https://reviews.llvm.org/D89736
Accept macro function definitions, and apply them when invoked in operand position.
Reviewed By: thakis
Differential Revision: https://reviews.llvm.org/D89734
2c196bbc6bd897b3dcc1d87a3baac28e1e88df41 asserted that
`SmallVector::push_back` doesn't invalidate the parameter when it needs
to grow. Do the same for `resize`, `append`, `assign`, `insert`, and
`emplace_back`.
Differential Revision: https://reviews.llvm.org/D91744
I was trying to add .cfi_ annotations to assembly code in the FreeBSD
kernel and changed a macro that then resulted in incorrectly nested
directives. However, clang's diagnostics said the error was happening at
<unknown>:0. This addresses one of the TODOs added in D51695.
Reviewed By: MaskRay
Differential Revision: https://reviews.llvm.org/D89787
Support MASM's REPEAT, FOR, FORC, and WHILE macro-like directives.
Also adds support for macro argument substitution inside quoted strings, and additional testing for macro directives.
Reviewed By: thakis
Differential Revision: https://reviews.llvm.org/D89732
MASM interprets strings in expression contexts as integers expressed in big-endian base-256, treating each character as its ASCII representation.
This completely eliminates the need to special-case single-character strings.
Reviewed By: thakis
Differential Revision: https://reviews.llvm.org/D90788
Allow single-quoted strings and double-quoted character values, as well as doubled-quote escaping.
Reviewed By: thakis
Differential Revision: https://reviews.llvm.org/D89731
Allows the MACRO directive to define macro procedures with parameters and macro-local symbols.
Supports required and optional parameters (including default values), and matches ml64.exe for its macro-local symbol handling (up to 65536 macro-local symbols in any translation unit).
Reviewed By: thakis
Differential Revision: https://reviews.llvm.org/D89729
MASM allows arbitrary whitespace around the Intel dot operator, especially when used for struct field lookup
Reviewed By: rnk
Differential Revision: https://reviews.llvm.org/D88450
Add support for .radix directive, and radix specifiers [yY] (binary), [oOqQ] (octal), and [tT] (decimal).
Also, when lexing MASM integers, require radix specifier; MASM requires that all literals without a radix specifier be treated as in the default radix. (e.g., 0100 = 100)
Relanding D87400, now with fewer ms-inline-asm tests broken!
Reviewed By: rnk
Differential Revision: https://reviews.llvm.org/D88337
Add support for .radix directive, and radix specifiers [yY] (binary), [oOqQ] (octal), and [tT] (decimal).
Also, when lexing MASM integers, require radix specifier; MASM requires that all literals without a radix specifier be treated as in the default radix. (e.g., 0100 = 100)
Reviewed By: thakis
Differential Revision: https://reviews.llvm.org/D87400
MASM structs are end-padded to have size a multiple of the smaller of the requested alignment and the size of their largest field (taken recursively, if they have a field of STRUCT type).
This matches the behavior of ml.exe and ml64.exe. Our original implementation followed the MASM 6.0 documentation, which instead specified that MASM structs were padded to a multiple of their requested alignment.
Reviewed By: thakis
Differential Revision: https://reviews.llvm.org/D87248
Add signed aliases for integral types, as well as the "DF" abbreviation for the FWORD type.
Reviewed By: thakis
Differential Revision: https://reviews.llvm.org/D87246
MASM allows variables defined by equate statements to be used in expressions.
Reviewed By: thakis
Differential Revision: https://reviews.llvm.org/D86946
MASM aligns fields to the _minimum_ of the STRUCT alignment value and the size of the next field.
Reviewed By: thakis
Differential Revision: https://reviews.llvm.org/D86945
Add support for line continuations (the "backslash operator") in MASM by modifying the Parser's Lex method.
Reviewed By: thakis
Differential Revision: https://reviews.llvm.org/D83347
Summary:
Add support for user-defined types to MasmParser, including initialization and field access.
Known issues:
- Omitted entry initializers (e.g., <,0>) do not work consistently for nested structs/arrays.
- Size checking/inference for values with known types is not yet implemented.
- Some ml64.exe syntaxes for accessing STRUCT fields are not recognized.
- `[<register>.<struct name>].<field>`
- `[<register>[<struct name>.<field>]]`
- `(<struct name> PTR [<register>]).<field>`
- `[<variable>.<struct name>].<field>`
- `(<struct name> PTR <variable>).<field>`
Reviewed By: thakis
Differential Revision: https://reviews.llvm.org/D75306
Summary:
When parsing 64-bit MASM, treat memory operands with unspecified base register as RIP-based.
Documented in several places, including https://software.intel.com/en-us/articles/introduction-to-x64-assembly: "Unfortunately, MASM does not allow this form of opcode, but other assemblers like FASM and YASM do. Instead, MASM embeds RIP-relative addressing implicitly."
Reviewed By: thakis
Differential Revision: https://reviews.llvm.org/D73227
According to DWARF standard, is_stmt is a global flag; when set or cleared it should affect subsequent .loc directives.
However llvm assembler handled is_stmt differently: it forced all locations to have is_stmt=1 unless is_stmt was specified explicitly as 0.
The fix utilizes current DWARF state flags to compute correct is_stmt values.
See https://bugs.llvm.org/show_bug.cgi?id=45529 for a detailed issue description.
Reviewers: arsenm, probinson, enderby
Differential Revision: https://reviews.llvm.org/D78102
Summary: ParsingInlineAsm was a misleading name. These values are only set for MS-style inline assembly.
Reviewed By: rnk
Tags: #clang, #llvm
Differential Revision: https://reviews.llvm.org/D75198
This reverts commit 9fe769a961dc8e3ce7d967ea0e07a4f0e5fac6e9, and re-lands commit c2e272f8cf76ec97f675e0dfdada75445bbee5c5.
Summary: Add support for ?, DUP, and string initializers, as well as MASM syntax for named data locations.
This version avoids the use of a C++17-only feature, if-statements with initializer.
Reviewers: rnk, thakis
Reviewed By: thakis
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D73226
Summary: Add support for ?, DUP, and string initializers, as well as MASM syntax for named data locations.
Reviewers: rnk, thakis
Reviewed By: thakis
Subscribers: merge_guards_bot, hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D73226
Summary:
Many directives are unavailable, and support for others may be limited.
This first draft has preliminary support for:
- conditional directives (including errors),
- data allocation (unsigned types up to 8 bytes, and ALIGN),
- equates/variables (numeric and text),
- and procedure directives (without parameters),
as well as COMMENT, ECHO, INCLUDE, INCLUDELIB, PUBLIC, and EXTERN. Text variables (aka text macros) are expanded in-place wherever the identifier occurs.
We deliberately ignore all ml.exe processor directives.
Prominent features not yet supported:
- structs
- macros (both procedures and functions)
- procedures (with specified parameters)
- substitution & expansion operators
Conditional directives are complicated by the fact that "ifdef rax" is a valid way to check if a file is being assembled for a 64-bit x86 processor; we add support for "ifdef <register>" in general, which requires adding a tryParseRegister method to all MCTargetAsmParsers. (Some targets require backtracking in the non-register case.)
Reviewers: rnk, thakis
Reviewed By: thakis
Subscribers: kerbowa, merge_guards_bot, wuzish, arsenm, dschuff, jyknight, dylanmckay, sdardis, nemanjai, jvesely, mgorny, sbc100, jgravelle-google, hiraditya, aheejin, kbarton, fedor.sergeev, asb, rbar, johnrusso, simoncook, sabuasal, niosHD, jrtc27, MaskRay, zzheng, edward-jones, atanasyan, rogfer01, MartinMosbeck, brucehoult, the_o, PkmX, jocewei, jsji, Jim, s.egerton, pzheng, sameer.abuasal, apazos, luismarques, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D72680
