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| author | Andrew Kelley <andrew@ziglang.org> | 2021-09-21 22:33:00 -0700 |
|---|---|---|
| committer | Andrew Kelley <andrew@ziglang.org> | 2021-09-21 23:21:07 -0700 |
| commit | aecebf38acc8835db21eeea7b53e4ee26ec739a8 (patch) | |
| tree | 132a3982487ae7bb1a0210a4ff2b7cd7a2934855 /src/codegen/c.zig | |
| parent | 0e2b9ac7770df07212d4d1cbfb15c3aaed0bef18 (diff) | |
| download | zig-aecebf38acc8835db21eeea7b53e4ee26ec739a8.tar.gz zig-aecebf38acc8835db21eeea7b53e4ee26ec739a8.zip | |
stage2: progress towards ability to compile compiler-rt
* prepare compiler-rt to support being compiled by stage2
- put in a few minor workarounds that will be removed later, such as
using `builtin.stage2_arch` rather than `builtin.cpu.arch`.
- only try to export a few symbols for now - we'll move more symbols
over to the "working in stage2" section as they become functional
and gain test coverage.
- use `inline fn` at function declarations rather than `@call` with an
always_inline modifier at the callsites, to avoid depending on the
anonymous array literal syntax language feature (for now).
* AIR: replace floatcast instruction with fptrunc and fpext for
shortening and widening floating point values, respectively.
* Introduce a new ZIR instruction, `export_value`, which implements
`@export` for the case when the thing to be exported is a local
comptime value that points to a function.
- AstGen: fix `@export` not properly reporting ambiguous decl
references.
* Sema: handle ExportOptions linkage. The value is now available to all
backends.
- Implement setting global linkage as appropriate in the LLVM
backend. I did not yet inspect the LLVM IR, so this still needs to
be audited. There is already a pending task to make sure the alias
stuff is working as intended, and this is related.
- Sema almost handles section, just a tiny bit more code is needed in
`resolveExportOptions`.
* Sema: implement float widening and shortening for both `@floatCast`
and float coercion.
- Implement the LLVM backend code for this as well.
Diffstat (limited to 'src/codegen/c.zig')
| -rw-r--r-- | src/codegen/c.zig | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/src/codegen/c.zig b/src/codegen/c.zig index c4e1d48062..a82f0e57f7 100644 --- a/src/codegen/c.zig +++ b/src/codegen/c.zig @@ -954,7 +954,12 @@ fn genBody(f: *Function, body: []const Air.Inst.Index) error{ AnalysisFail, OutO .atomic_rmw => try airAtomicRmw(f, inst), .atomic_load => try airAtomicLoad(f, inst), - .int_to_float, .float_to_int => try airSimpleCast(f, inst), + .int_to_float, + .float_to_int, + .fptrunc, + .fpext, + .ptrtoint, + => try airSimpleCast(f, inst), .atomic_store_unordered => try airAtomicStore(f, inst, toMemoryOrder(.Unordered)), .atomic_store_monotonic => try airAtomicStore(f, inst, toMemoryOrder(.Monotonic)), @@ -982,9 +987,6 @@ fn genBody(f: *Function, body: []const Air.Inst.Index) error{ AnalysisFail, OutO .unwrap_errunion_err_ptr => try airUnwrapErrUnionErr(f, inst), .wrap_errunion_payload => try airWrapErrUnionPay(f, inst), .wrap_errunion_err => try airWrapErrUnionErr(f, inst), - - .ptrtoint => return f.fail("TODO: C backend: implement codegen for ptrtoint", .{}), - .floatcast => return f.fail("TODO: C backend: implement codegen for floatcast", .{}), // zig fmt: on }; switch (result_value) { |