spirv: introduce SpvModule.Fn to generate function code into
spirv: assembler error message setup
spirv: runtime spec info
spirv: inline assembly tokenizer
spirv: inline assembly lhs result/opcode parsing
spirv: forgot to fmt
spirv: tokenize opcodes and assigned result-ids
spirv: operand parsing setup
spirv: assembler string literals
spirv: assembler integer literals
spirv: assembler value enums
spirv: assembler bit masks
spirv: update assembler to new asm air format
spirv: target 1.5 for now
Current vulkan sdk version (1.3.204) ships spirv tools targetting 1.5,
and so these do not work with binaries targetting 1.6 yet. In the
future, this version number should be decided by the target.
spirv: store operands in flat arraylist.
Instead of having dedicated Operand variants for variadic operands,
just flatten them and store them in the normal inst.operands list.
This is a little simpler, but is not easily decodable in the operand
data representation.
spirv: parse variadic assembly operands
spirv: improve assembler result-id tokenization
spirv: begin instruction processing
spirv: only remove decl if it was actually allocated
spirv: work around weird miscompilation
Seems like there are problems with switch in anonymous struct literals.
spirv: begin resolving some types in assembler
spirv: improve instruction processing
spirv: rename some types + process OpTypeInt
spirv: process OpTypeVector
spirv: process OpTypeMatrix and OpTypeSampler
spirv: add opcode class to spec, remove @exclude'd instructions
spirv: process more type instructions
spirv: OpTypeFunction
spirv: OpTypeOpaque
spirv: parse LiteralContextDependentNumber operands
spirv: emit assembly instruction into right section
spirv: parse OpPhi parameters
spirv: inline assembly inputs
spirv: also copy air types
spirv: inline assembly outputs
spirv: spir-v address spaces
spirv: basic vector constants/types and shuffle
spirv: assembler OpTypeImage
spirv: some stuff
spirv: remove spirv address spaces for now
This also modifies the inline assembly to be more optimizable - instead of
doing explicit movs, we instead communicate to LLVM which registers we
would like to, somehow, have the correct values. This is how the x86_64
code already worked and thus allows the code to be unified across the
two architectures.
As a bonus, I threw in x86 support.
Adds optimizations for by-ref types to:
- .struct_field_val
- .slice_elem_val
- .ptr_elem_val
I would have expected LLVM to be able to optimize away these
temporaries since we don't leak pointers to them and they are fed
straight from def to use, but empirically it does not.
Resolves https://github.com/ziglang/zig/issues/12713
Resolves https://github.com/ziglang/zig/issues/12638
This change makes any of the `*_val` instructions check whether it's
safe to elide copies for by-ref types rather than performing this
elision blindly.
AIR instructions fixed:
- .array_elem_val
- .struct_field_val
- .unwrap_errunion_payload
- .try
- .optional_payload
These now all respect value semantics, as expected.
P.S. Thanks to Andrew for the new way to approach this. Many of the
lines here are from his recommended change, which comes with the
significant advantage that loads are now as small as the intervening
memory access allows.
Co-authored by: Andrew Kelley <andrew@ziglang.org>
Can be changed to `!inst_ty.hisRuntimeBitsIgnoreComptime()` when the
"result location with inferred type ends up being pointer to comptime_int"
test stops producing Air containing a `bitcast(*comptime_int, ...)`.
See #13410
When Wasm extern functions contain the same name, but have a
different module name such as `extern "a"` vs `extern "b"` LLVM will
currently resolve the two functions to the same symbol. By mangling
the name of the symbol, we ensure the functions are resolved
seperately. We mangle the name by applying <name>|<module> where
module is also known as the library name.
