[WebAssembly] Cleanup of the way globals and global flags are handled

Differential Revision: https://reviews.llvm.org/D44030

llvm-svn: 338894

Support: Simplify endian stream interface. NFCI.

Provide some free functions to reduce verbosity of endian-writing
a single value, and replace the endianness template parameter with
a field.

Part o

Support: Simplify endian stream interface. NFCI.

Provide some free functions to reduce verbosity of endian-writing
a single value, and replace the endianness template parameter with
a field.

Part of PR37466.

Differential Revision: https://reviews.llvm.org/D47032

llvm-svn: 332757

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Rename DEBUG macro to LLVM_DEBUG.

The DEBUG() macro is very generic so it might clash with other projects.
The renaming was done as follows:
- git grep -l 'DEBUG' | xargs sed -i 's/\bDEBUG\s\?(/

Rename DEBUG macro to LLVM_DEBUG.

The DEBUG() macro is very generic so it might clash with other projects.
The renaming was done as follows:
- git grep -l 'DEBUG' | xargs sed -i 's/\bDEBUG\s\?(/LLVM_DEBUG(/g'
- git diff -U0 master | ../clang/tools/clang-format/clang-format-diff.py -i -p1 -style LLVM
- Manual change to APInt
- Manually chage DOCS as regex doesn't match it.

In the transition period the DEBUG() macro is still present and aliased
to the LLVM_DEBUG() one.

Differential Revision: https://reviews.llvm.org/D43624

llvm-svn: 332240

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Remove \brief commands from doxygen comments.

We've been running doxygen with the autobrief option for a couple of
years now. This makes the \brief markers into our comments
redundant. Since they ar

Remove \brief commands from doxygen comments.

We've been running doxygen with the autobrief option for a couple of
years now. This makes the \brief markers into our comments
redundant. Since they are a visual distraction and we don't want to
encourage more \brief markers in new code either, this patch removes
them all.

Patch produced by

for i in $(git grep -l '\\brief'); do perl -pi -e 's/\\brief //g' $i & done

Differential Revision: https://reviews.llvm.org/D46290

llvm-svn: 331272

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[WebAssembly] Only write 32-bits for WebAssembly::OPERAND_OFFSET32

A bug was found where an offset of -1 would generate an encoding
of max int64 which is invalid in the binary format.

Differential

[WebAssembly] Only write 32-bits for WebAssembly::OPERAND_OFFSET32

A bug was found where an offset of -1 would generate an encoding
of max int64 which is invalid in the binary format.

Differential Revision: https://reviews.llvm.org/D45280

llvm-svn: 329238

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Reland "[WebAssembly] More uses of uint8_t for single byte values"

Summary:
Original change was D43991 (rL326541) and was reverted by rL326571 and
rL326572. This adds also the necessary MCCodeEmitte

Reland "[WebAssembly] More uses of uint8_t for single byte values"

Summary:
Original change was D43991 (rL326541) and was reverted by rL326571 and
rL326572. This adds also the necessary MCCodeEmitter patch.

Reviewers: sbc100

Subscribers: jfb, dschuff, sbc100, jgravelle-google, sunfish, llvm-commits, ncw

Differential Revision: https://reviews.llvm.org/D44034

llvm-svn: 326614

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[WebAssembly] Fix trapping behavior in fptosi/fptoui.

This adds code to protect WebAssembly's `trunc_s` family of opcodes
from values outside their domain. Even though such conversions have
full und

[WebAssembly] Fix trapping behavior in fptosi/fptoui.

This adds code to protect WebAssembly's `trunc_s` family of opcodes
from values outside their domain. Even though such conversions have
full undefined behavior in C/C++, LLVM IR's `fptosi` and `fptoui` do
not, and only return undef.

This also implements the proposed non-trapping float-to-int conversion
feature and uses that instead when available.

llvm-svn: 319128

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Change encodeU/SLEB128 to pad to certain number of bytes

Previously the 'Padding' argument was the number of padding
bytes to add. However most callers that use 'Padding' know
how many overall bytes

Change encodeU/SLEB128 to pad to certain number of bytes

Previously the 'Padding' argument was the number of padding
bytes to add. However most callers that use 'Padding' know
how many overall bytes they need to write. With the previous
code this would mean encoding the LEB once to find out how
many bytes it would occupy and then using this to calulate
the 'Padding' value.

See: https://reviews.llvm.org/D36595

Differential Revision: https://reviews.llvm.org/D37494

llvm-svn: 313393

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[WebAssembly] Use __stack_pointer global when writing wasm binary

This ensures that symbolic relocations are generated for stack
pointer manipulations.

These relocations are of type R_WEBASSEMBLY_G

[WebAssembly] Use __stack_pointer global when writing wasm binary

This ensures that symbolic relocations are generated for stack
pointer manipulations.

These relocations are of type R_WEBASSEMBLY_GLOBAL_INDEX_LEB.
This change also adds support for reading relocations of this
type in WasmObjectFile.cpp.

Since its a globally imported symbol this does mean that
the get_global/set_global instruction won't be valid until
the objects are linked that global used in no longer an
imported global.

Differential Revision: https://reviews.llvm.org/D34172

llvm-svn: 305616

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Sort the remaining #include lines in include/... and lib/....

I did this a long time ago with a janky python script, but now
clang-format has built-in support for this. I fed clang-format every
line

Sort the remaining #include lines in include/... and lib/....

I did this a long time ago with a janky python script, but now
clang-format has built-in support for this. I fed clang-format every
line with a #include and let it re-sort things according to the precise
LLVM rules for include ordering baked into clang-format these days.

I've reverted a number of files where the results of sorting includes
isn't healthy. Either places where we have legacy code relying on
particular include ordering (where possible, I'll fix these separately)
or where we have particular formatting around #include lines that
I didn't want to disturb in this patch.

This patch is *entirely* mechanical. If you get merge conflicts or
anything, just ignore the changes in this patch and run clang-format
over your #include lines in the files.

Sorry for any noise here, but it is important to keep these things
stable. I was seeing an increasing number of patches with irrelevant
re-ordering of #include lines because clang-format was used. This patch
at least isolates that churn, makes it easy to skip when resolving
conflicts, and gets us to a clean baseline (again).

llvm-svn: 304787

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[WebAssembly] Encode block signatures as SLEB instead of ULEB

Use SLEB (varint) for block_type immediates in accordance with the spec.

Patch by Yury Delendik

llvm-svn: 300490

[WebAssembly] Basic support for Wasm object file encoding.

With the "wasm32-unknown-unknown-wasm" triple, this allows writing out
simple wasm object files, and is another step in a larger series tow

[WebAssembly] Basic support for Wasm object file encoding.

With the "wasm32-unknown-unknown-wasm" triple, this allows writing out
simple wasm object files, and is another step in a larger series toward
migrating from ELF to general wasm object support. Note that this code
and the binary format itself is still experimental.

llvm-svn: 296190

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[WebAssembly] Add a cast to void to fix an unused private member warning, for now.

llvm-svn: 295327

[WebAssembly] Pass an MCContext to WebAssemblyMCCodeEmitter. NFC.

llvm-svn: 294679

[WebAssembly] Add an "explicit" keyword to a constructor.

llvm-svn: 290345

[WebAssembly] Implement more WebAssembly binary encoding.

This changes locals from being declared by the emitLocal hook in
WebAssemblyTargetStreamer, rather than with an instruction. After exploring

[WebAssembly] Implement more WebAssembly binary encoding.

This changes locals from being declared by the emitLocal hook in
WebAssemblyTargetStreamer, rather than with an instruction. After exploring
the infastructure in LLVM more, this seems to make more sense since
declaring locals doesn't use an encoded opcode.

This also adds more 0xd opcodes, type encodings, and miscellaneous
binary encoding bits.

llvm-svn: 285040

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[WebAssembly] Add an option to make get_local/set_local explicit.

This patch adds a pass, controlled by an option and off by default for
now, for making implicit get_local/set_local explicit. This s

[WebAssembly] Add an option to make get_local/set_local explicit.

This patch adds a pass, controlled by an option and off by default for
now, for making implicit get_local/set_local explicit. This simplifies
emitting wasm with MC.

Differential Revision: https://reviews.llvm.org/D25836

llvm-svn: 285009

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Fix the wasm build by including EndianStream.h

llvm-svn: 273591

[WebAssembly] Minor code cleanups. NFC.

llvm-svn: 258294

[WebAssembly] Remove an unused data member. NFC.

llvm-svn: 258192

[WebAssembly] Implement a prototype instruction encoder and disassembler.

This is using an extremely simple temporary made-up binary format, not the
official binary format (which isn't defined yet).

[WebAssembly] Implement a prototype instruction encoder and disassembler.

This is using an extremely simple temporary made-up binary format, not the
official binary format (which isn't defined yet).

llvm-svn: 257440

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[WebAssembly] Minor code cleanups. NFC.

llvm-svn: 257131

[WebAssembly] Remove unused arguments, unused functions. NFC.

llvm-svn: 257125

Remove unused class variables.

llvm-svn: 255939

Fix unused variable warning in release builds. NFC.

llvm-svn: 255897