The `sema.inst_map` datastructure is very often accessed. All
instructions that reference the result of other instructions does a
lookup into this field. Because of this, a significant amount of time,
is spent in `std.HashMap.get`.
This commit replaces the `HashMap` with a simpler data structure that
uses the zir indexes to index into a slice for the result. See the data
structure doc comment for more info.
Returning a bool allows to conveniently use it as the condition
of a while loop.
Also remove restriction that ST cannot be double-word.
While imm is only 32-bit, this value is extended into a 64-bit
memory location.
Test coverage was lacking for chdir() on WASI, allowing this to
regress.
This change makes os.chdir() compile again, and improves the test
logic to use our standard CWD support for WASI.
If a parse node is reserved but never set the node remains
uninitialized and can crash tools doing a linear scan of the nodes
(like ZLS) when switching on the tag.
This is the main way this feature is supposed to work:
1. you discover that a test started failing at some point
but a misconfiguration in the CI script didn't catch that
causing a bunch of false negative (ie false green) CIs
over time
2. you fix the script and now want to figure out when the
test started failing
3. you want to rebuild older commits, potentially only on specific
targets, but with the new fixed CI script that correctly
catches failures
This is what this commit enables
If the noise parameter was null, we didn't use any noise at all.
We unconditionally generated random noise (`noise2`) but didn't use it.
Spotted by @cryptocode, thanks!
The TODO comment in safetyPanic mentions introducing the concept of
reference-counted decls. That sounds like Zig current semantics for
normal declarations. By placing the panic messages in builtin there is
no need for another concept in the compiler.
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
Standard library tests require the root source file to be the
corresponding file inside the Zig lib directory. In other words, there
may not be two copies of the standard library. After the changes in this
branch, Zig no longer notices that `../lib/std.zig` and
`$(pwd)/../lib/std.zig` are the same file because one is relative and
one is absolute.
* Update for the breaking changes to std.fs.path.resolve. This had a
happy side effect of deleting some error handling code which is no
longer needed.
* Introduce cache_exempt_flags field to CSourceFile. This is used only
for include directories when building libc++ and libc++abi which
depend only on the zig lib path.
* libc_include_dir_list is only added to the cache hash when it
contains directories which have been obtained from system probing. It
is exempt when the directories depend only on the zig lib path.
