The container we want to get the fields from might not be declared in the
same file as the block we are analyzing, so we should get the AST from
the decl's file instead.
The enum we want to get the fields from might not be declared in the
same file as the block we are analyzing, so we should get the AST from
the decl's file instead.
Closes#12950.
2c3d87b168bf522f538e78325fdae71c320e6e20 introduced a new test that
passes on macOS but fails on other operating systems. This commit makes
it only run on macOS.
Many of these tests check for the incorrect behavior of stage1 whereas
self-hosted correctly does not emit an error, so they are simply
deleted.
The remaining number of test cases within the stage1/ subdirectory is
reduced from 143 to 103.
This reverts commit d31be31267523cadd6d59b52633f2d4a9758a3b4.
The problem was happening due to an LLVM bug exposed by having LTO
enabled for libunwind. The simple workaround is to disable LTO for
libunwind. It can be re-enabled in the future when the upstream bug
is fixed.
See #12828
This makes translate-c lower discards as `_ = @TypeOf(foo);` to avoid
tripping the "pointless discard" error.
Ideally, translate-c would avoid emitting pointless discards, in which
case this commit can be reverted, however, that is a separate
enhancement.
Storing defers this way has the benefits that the defer doesn't get
analyzed multiple times in AstGen, it takes up less space, and it
makes Sema aware of defers allowing for 'unreachable else prong'
error on error sets in generic code.
The disadvantage is that it is a bit more complex and errdefers with
payloads now emit a placeholder instruction (but those are rare).
Sema.zig before:
Total ZIR bytes: 3.7794370651245117MiB
Instructions: 238996 (2.051319122314453MiB)
String Table Bytes: 89.2802734375KiB
Extra Data Items: 430144 (1.640869140625MiB)
Sema.zig after:
Total ZIR bytes: 3.3344192504882812MiB
Instructions: 211829 (1.8181428909301758MiB)
String Table Bytes: 89.2802734375KiB
Extra Data Items: 374611 (1.4290275573730469MiB)
