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Jacob Pratt b310eb91ab
Rollup merge of #146457 - alexcrichton:wasm-no-exn-instructions, r=bjorn3 
Skip cleanups on unsupported targets

This commit is an update to the `AbortUnwindingCalls` MIR pass in the compiler. Specifically a new boolean is added for "can this target possibly unwind" and if that's `false` then terminators are all adjusted to be unreachable/not present. The end result is that this fixes rust-lang/rust#140293 for wasm targets.

The motivation for this PR is that currently on WebAssembly targets the usage of the `C-unwind` ABI can lead LLVM to either (a) emit exception-handling instructions or (b) hit a LLVM-ICE-style codegen error. WebAssembly as a base instruction set does not support unwinding at all, and a later proposal to WebAssembly, the exception-handling proposal, was what enabled this. This means that the current intent of WebAssembly targets is that they maintain the baseline of "don't emit exception-handling instructions unless enabled". The commit here is intended to restore this behavior by skipping these instructions even when `C-unwind` is present.

Exception-handling is a relatively tricky and also murky topic in WebAssembly, however. There are two sets of instructions LLVM can emit for WebAssembly exceptions, Rust's Emscripten target supports exceptions, WASI targets do not, the LLVM flags to enable this are not always obvious, and additionally this all touches on "changing exception-handling behavior should be a target-level concern, not a feature". Effectively WebAssembly's exception-handling integration into Rust is not finalized at this time. The best idea at this time is that a parallel set of targets will eventually be added which support exceptions, but it's not clear if/when to do this. In the meantime the goal is to keep existing targets working while still enabling experimentation with exception-handling with `-Zbuild-std` and various permutations of LLVM flags.

To that extent this commit does not blanket disable these landing pads and cleanup routines for WebAssembly but instead checks to see if panic=unwind is enabled or if `+exception-handling` is enabled. Tests are updated here as well to account for this where, by default, using a `C-unwind` ABI won't affect Rust codegen at all. If `+exception-handling` is enabled, however, then Rust codegen will look like native platforms where exceptions are caught and the program aborts. More-or-less I've done my best to keep exceptions working on wasm where it's possible to have them work, but turned them off where they're not supposed to be emitted.

Closes rust-lang/rust#140293
2025-09-29 21:37:50 -04:00
..
asm Rollup merge of #146831 - taiki-e:powerpc-clobber, r=Amanieu 2025-09-22 20:25:14 +10:00
autodiff added typetree support for memcpy 2025-09-19 04:02:20 +00:00
autovec Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
auxiliary initial implementation of the darwin_objc unstable feature 2025-09-13 16:06:22 -07:00
avr Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
bounds-checking Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
cffi c-variadic: check that inline attributes are accepted on c-variadic functions 2025-09-13 21:05:12 +02:00
compiletest-self-test Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
cross-crate-inlining Ignore intrinsic calls in cross-crate-inlining cost model 2025-09-05 20:44:49 -04:00
debug-accessibility Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
debuginfo-proc-macro Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
dllimports Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
enum Update the minimum external LLVM to 20 2025-09-16 11:49:20 -07:00
ergonomic-clones Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
float Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
gpu_offload Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
hint Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
instrument-coverage Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
instrument-xray Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
intrinsics Update the minimum external LLVM to 20 2025-09-16 11:49:20 -07:00
issues Rollup merge of #146732 - durin42:llvm-22-less-assumes, r=nikic 2025-09-27 21:25:57 +02:00
lib-optimizations Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
loongarch-abi Rollup merge of #145709 - heiher:issue-145692-1, r=jackh726 2025-09-05 01:53:20 -04:00
macos Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
meta-filecheck Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
naked-fn Verify llvm-needs-components are not empty and match the --target value 2025-07-29 11:20:23 -07:00
non-terminate Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
option-niche-unfixed Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
patchable-function-entry Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
remap_path_prefix Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
repr Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
riscv-abi Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
sanitizer -Zsanitize and -Zsanitizer-cfi-normalize-integers flags are now target modifiers with custom consistency check function 2025-08-21 16:08:00 +07:00
simd Fix tests/codegen-llvm/simd/extract-insert-dyn.rs test failure on riscv64 2025-07-28 11:58:38 +00:00
simd-intrinsic Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
src-hash-algorithm Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
unwind-abis Skip cleanups on unsupported targets 2025-09-11 16:13:32 -07:00
aarch64-softfloat.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
aarch64-struct-align-128.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
abi-efiapi.rs Verify llvm-needs-components are not empty and match the --target value 2025-07-29 11:20:23 -07:00
abi-main-signature-16bit-c-int.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
abi-main-signature-32bit-c-int.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
abi-repr-ext.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
abi-sysv64.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
abi-win64-zst.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
abi-x86-interrupt.rs Enforce correct number of arguments for "x86-interrupt" functions 2025-08-20 18:03:57 +03:00
abi-x86-sse.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
abi-x86_64_sysv.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
addr-of-mutate.rs Use captures(address) instead of captures(none) for indirect args 2025-08-26 16:16:23 +02:00
adjustments.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
align-byval-alignment-mismatch.rs llvm: Accept new LLVM lifetime format 2025-08-11 22:00:41 +00:00
align-byval-vector.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
align-byval.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
align-enum.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
align-fn.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
align-offset.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
align-static.rs allow #[rustc_align_static(N)] on statics 2025-09-09 21:54:54 +02:00
align-struct.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
alloc-optimisation.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
amdgpu-addrspacecast.rs Add test for addrspacecasting global vars 2025-09-03 08:40:51 +02:00
array-clone.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
array-cmp.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
array-codegen.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
array-equality.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
array-from_fn.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
array-map.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
array-optimized.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
array-repeat.rs stabilize array repeat 2025-08-15 16:42:21 +00:00
ascii-char.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
assign-desugar-debuginfo.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
async-closure-debug.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
async-fn-debug-awaitee-field.rs pub async fn implementation coroutine (func::{closure#0}) is monomorphized, when func itself is monomorphized 2025-09-01 13:45:00 +07:00
async-fn-debug-msvc.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
async-fn-debug.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
atomic-operations.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
atomicptr.rs stabilize strict provenance atomic ptr 2025-08-15 16:56:11 +00:00
autovectorize-f32x4.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
become-musttail.rs Implement support for explicit tail calls in the MIR block builders and the LLVM codegen backend. 2025-07-26 01:02:29 +02:00
bigint-helpers.rs Stop using uadd.with.overflow 2025-08-08 21:59:28 -07:00
binary-heap-peek-mut-pop-no-panic.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
binary-search-index-no-bound-check.rs Consolidate panicking functions in slice/index.rs 2025-08-21 11:07:25 +01:00
bool-cmp.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
bounds-check-elision-slice-min.rs Multiple bounds checking elision failures 2025-08-01 18:38:22 +01:00
box-default-debug-copies.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
box-uninit-bytes.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
bpf-alu32.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
branch-protection.rs Extends branch protection tests to include GCS 2025-09-22 11:29:54 +01:00
c-variadic-lifetime.rs tests: update new test to accept new lifetime format 2025-09-12 14:31:08 -04:00
call-llvm-intrinsics.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
call-tmps-lifetime.rs llvm: Accept new LLVM lifetime format 2025-08-11 22:00:41 +00:00
cast-optimized.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
cast-target-abi.rs Fix LoongArch C function ABI when passing/returning structs containing floats 2025-08-21 18:00:26 +08:00
catch-unwind.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
cdylib-external-inline-fns.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
cf-protection.rs Verify llvm-needs-components are not empty and match the --target value 2025-07-29 11:20:23 -07:00
cfguard-checks.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
cfguard-disabled.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
cfguard-nochecks.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
cfguard-non-msvc.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
char-ascii-branchless.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
char-escape-debug-no-bounds-check.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
checked_ilog.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
checked_math.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
clone-shims.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
clone_as_copy.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
codemodels.rs Verify llvm-needs-components are not empty and match the --target value 2025-07-29 11:20:23 -07:00
coercions.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
cold-call-declare-and-call.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
common_prim_int_ptr.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
comparison-operators-2-struct.rs Update the minimum external LLVM to 20 2025-09-16 11:49:20 -07:00
comparison-operators-2-tuple.rs Update the minimum external LLVM to 20 2025-09-16 11:49:20 -07:00
comparison-operators-newtype.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
const-array.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
const-vector.rs Fix tests/codegen-llvm/const-vector.rs test failure on riscv64 2025-07-23 11:23:36 +00:00
const_scalar_pair.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
constant-branch.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
consts.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
coroutine-debug-msvc.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
coroutine-debug.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
darwin-no-objc.rs initial implementation of the darwin_objc unstable feature 2025-09-13 16:06:22 -07:00
darwin-objc-abi-v1.rs initial implementation of the darwin_objc unstable feature 2025-09-13 16:06:22 -07:00
darwin-objc-abi-v2.rs initial implementation of the darwin_objc unstable feature 2025-09-13 16:06:22 -07:00
darwin-objc-cross-crate.rs initial implementation of the darwin_objc unstable feature 2025-09-13 16:06:22 -07:00
dead_on_return.rs Set dead_on_return attribute for indirect arguments 2025-08-11 12:39:23 +02:00
dealloc-no-unwind.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
debug-alignment.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
debug-column-msvc.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
debug-column.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
debug-compile-unit-path.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
debug-fndef-size.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
debug-limited.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
debug-line-directives-only.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
debug-line-tables-only.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
debug-linkage-name.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
debug-vtable.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
debuginfo-constant-locals.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
debuginfo-cyclic-structure.rs fix(debuginfo): disable overflow check for 2025-07-27 14:42:07 +03:00
debuginfo-generic-closure-env-names.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
debuginfo-inline-callsite-location.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
deduced-param-attrs.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
default-requires-uwtable.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
default-visibility.rs Ignore intrinsic calls in cross-crate-inlining cost model 2025-09-05 20:44:49 -04:00
direct-access-external-data.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
diverging-function-call-debuginfo.rs tests: Test line number in debuginfo for diverging function calls 2025-07-29 18:59:09 +02:00
dont_codegen_private_const_fn_only_used_in_const_eval.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
drop-in-place-noalias.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
drop.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
dst-offset.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
dst-vtable-align-nonzero.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
dst-vtable-size-range.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
ehcontguard_disabled.rs Verify llvm-needs-components are not empty and match the --target value 2025-07-29 11:20:23 -07:00
ehcontguard_enabled.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
emscripten-catch-unwind-js-eh.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
emscripten-catch-unwind-wasm-eh.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
enable-lto-unit-splitting.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
error-provide.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
export-no-mangle.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
external-no-mangle-fns.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
external-no-mangle-statics.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
f128-wasm32-callconv.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
fastcall-inreg.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
fatptr.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
fewer-names.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
fixed-x18.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
float_math.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
fn-impl-trait-self.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
fn-parameters-on-different-lines-debuginfo.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
force-frame-pointers.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
force-no-unwind-tables.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
force-unwind-tables.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
frame-pointer-cli-control.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
frame-pointer.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
function-arguments-noopt.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
function-arguments.rs Use captures(address) instead of captures(none) for indirect args 2025-08-26 16:16:23 +02:00
function-return.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
gdb_debug_script_load.rs Revert "Preserve the .debug_gdb_scripts section" 2025-08-06 18:01:07 +00:00
generic-debug.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
gep-index.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
global-allocator-attributes.rs Add attributes for #[global_allocator] functions 2025-09-23 10:21:17 +02:00
gpu-kernel-abi.rs Add amdgpu to gpu-kernel test 2025-09-03 08:40:58 +02:00
i128-wasm32-callconv.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
i128-x86-align.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
i128-x86-callconv.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
indirect-branch-cs-prefix.rs Add -Zindirect-branch-cs-prefix option 2025-08-17 16:51:42 +02:00
infallible-unwrap-in-opt-z.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
inherit_overflow.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
inline-always-works-always.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
inline-debuginfo.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
inline-function-args-debug-info.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
inline-hint.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
instrument-mcount.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
integer-cmp.rs Update the minimum external LLVM to 20 2025-09-16 11:49:20 -07:00
integer-overflow.rs Consolidate panicking functions in slice/index.rs 2025-08-21 11:07:25 +01:00
internalize-closures.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
intrinsic-no-unnamed-attr.rs Mark float intrinsics with no preconditions as safe 2025-09-21 20:37:51 -04:00
is_val_statically_known.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
issue-97217.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
iter-repeat-n-trivial-drop.rs stabilize array repeat 2025-08-15 16:42:21 +00:00
layout-size-checks.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
lifetime_start_end.rs llvm: Accept new LLVM lifetime format 2025-08-11 22:00:41 +00:00
link-dead-code.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
link_section.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
llvm-ident.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
llvm_module_flags.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
loads.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
local-generics-in-exe-internalized.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
lto-removes-invokes.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
mainsubprogram.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
match-optimized.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
match-optimizes-away.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
match-unoptimized.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
maybeuninit-rvo.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
mem-replace-big-type.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
mem-replace-simple-type.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
merge-functions.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
method-declaration.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
min-function-alignment.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
mir-aggregate-no-alloca.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
mir-inlined-line-numbers.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
mir_zst_stores.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
move-before-nocapture-ref-arg.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
move-operands.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
naked-asan.rs Enforce correct number of arguments for "x86-interrupt" functions 2025-08-20 18:03:57 +03:00
no-alloca-inside-if-false.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
no-assumes-on-casts.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
no-dllimport-w-cross-lang-lto.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
no-jump-tables.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
no-plt.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
no-redundant-item-monomorphization.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
no_builtins-at-crate.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
noalias-box-off.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
noalias-box.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
noalias-flag.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
noalias-freeze.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
noalias-refcell.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
noalias-rwlockreadguard.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
noalias-unpin.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
noreturn-uninhabited.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
noreturnflag.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
nounwind.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
nrvo.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
optimize-attr-1.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
option-as-slice.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
option-niche-eq.rs Update the minimum external LLVM to 20 2025-09-16 11:49:20 -07:00
overaligned-constant.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
packed.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
panic-abort-windows.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
panic-in-drop-abort.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
panic-unwind-default-uwtable.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
pattern_type_symbols.rs Add proper name mangling for pattern types 2025-09-23 10:59:29 +00:00
personality_lifetimes.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
pgo-counter-bias.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
pgo-instrumentation.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
pic-relocation-model.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
pie-relocation-model.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
placement-new.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
powerpc64le-struct-align-128.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
precondition-checks.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
ptr-arithmetic.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
ptr-read-metadata.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
range-attribute.rs Tell LLVM about read-only captures 2025-08-20 19:08:16 +02:00
range-loop.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
range_to_inclusive.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
read-only-capture-opt.rs Tell LLVM about read-only captures 2025-08-20 19:08:16 +02:00
README.md Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
refs.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
reg-struct-return.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
regparm-inreg.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
repeat-operand-zero-len.rs tests: fix RISC-V failures and adjust transmute-scalar.rs target 2025-08-18 19:37:13 +00:00
repeat-operand-zst-elem.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
repeat-trusted-len.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
retpoline.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
riscv-target-abi.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
rust-abi-arch-specific-adjustment.rs tests/codegen-llvm: Make rust-abi-arch-specific-adjustment portable 2025-09-08 20:23:52 +02:00
s390x-simd.rs update some s390x codegen tests 2025-08-20 16:35:33 +02:00
scalar-pair-bool.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
set-discriminant-invalid.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
skip-mono-inside-if-false.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
slice-as_chunks.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
slice-indexing.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
slice-init.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
slice-is-ascii.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
slice-iter-fold.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
slice-iter-len-eq-zero.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
slice-iter-nonnull.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
slice-last-elements-optimization.rs Update the minimum external LLVM to 20 2025-09-16 11:49:20 -07:00
slice-pointer-nonnull-unwrap.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
slice-position-bounds-check.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
slice-ref-equality.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
slice-reverse.rs Consolidate panicking functions in slice/index.rs 2025-08-21 11:07:25 +01:00
slice-split-at.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
slice-windows-no-bounds-check.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
slice_as_from_ptr_range.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
some-abis-do-extend-params-to-32-bits.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
some-global-nonnull.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
sparc-struct-abi.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
split-lto-unit.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
sroa-fragment-debuginfo.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
sse42-implies-crc32.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
stack-probes-inline.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
stack-protector.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
static-relocation-model-msvc.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
staticlib-external-inline-fns.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
step_by-overflow-checks.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
stores.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
string-push.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
swap-large-types.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
swap-small-types.rs Update the minimum external LLVM to 20 2025-09-16 11:49:20 -07:00
target-cpu-on-functions.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
target-feature-inline-closure.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
target-feature-negative-implication.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
target-feature-overrides.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
terminating-catchpad.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
thread-local.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
tied-features-strength.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
to_vec.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
trailing_zeros.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
transmute-optimized.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
transmute-scalar.rs tests: fix RISC-V failures and adjust transmute-scalar.rs target 2025-08-18 19:37:13 +00:00
try_question_mark_nop.rs Update the minimum external LLVM to 20 2025-09-16 11:49:20 -07:00
tune-cpu-on-functions.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
tuple-layout-opt.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
ub-checks.rs Verify llvm-needs-components are not empty and match the --target value 2025-07-29 11:20:23 -07:00
unchecked-float-casts.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
unchecked_shifts.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
uninhabited-transparent-return-abi.rs tests: fix RISC-V failures and adjust transmute-scalar.rs target 2025-08-18 19:37:13 +00:00
uninit-consts.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
uninit-repeat-in-aggregate.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
union-abi.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
union-aggregate.rs Update the minimum external LLVM to 20 2025-09-16 11:49:20 -07:00
unwind-and-panic-abort.rs Skip cleanups on unsupported targets 2025-09-11 16:13:32 -07:00
unwind-extern-exports.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
unwind-extern-imports.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
unwind-landingpad-cold.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
unwind-landingpad-inline.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
used_with_arg.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
var-names.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
vec-as-ptr.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
vec-calloc.rs Pass alloc-variant-zeroed to LLVM 2025-08-20 17:08:46 +01:00
vec-in-place.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
vec-iter-collect-len.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
vec-iter.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
vec-len-invariant.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
vec-optimizes-away.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
vec-reserve-extend.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
vec-shrink-panik.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
vec-with-capacity.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
vec_pop_push_noop.rs tests: use max-llvm-major-version instead of ignore-llvm-version 2025-09-26 13:32:03 -04:00
vecdeque-drain.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
vecdeque-nonempty-get-no-panic.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
vecdeque_no_panic.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
vecdeque_pop_push.rs tests: use max-llvm-major-version instead of ignore-llvm-version 2025-09-26 13:32:03 -04:00
virtual-call-attrs-issue-137646.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
virtual-function-elimination-32bit.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
virtual-function-elimination.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
vtable-loads.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
vtable-upcast.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
wasm_casts_trapping.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
wasm_exceptions.rs Skip cleanups on unsupported targets 2025-09-11 16:13:32 -07:00
zip.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00
zst-offset.rs Rename tests/codegen into tests/codegen-llvm 2025-07-22 14:28:48 +02:00

README.md

The files here use the LLVM FileCheck framework, documented at https://llvm.org/docs/CommandGuide/FileCheck.html.

One extension worth noting is the use of revisions as custom prefixes for FileCheck. If your codegen test has different behavior based on the chosen target or different compiler flags that you want to exercise, you can use a revisions annotation, like so:

// revisions: aaa bbb
// [bbb] compile-flags: --flags-for-bbb

After specifying those variations, you can write different expected, or explicitly unexpected output by using <prefix>-SAME: and <prefix>-NOT:, like so:

// CHECK: expected code
// aaa-SAME: emitted-only-for-aaa
// aaa-NOT:                        emitted-only-for-bbb
// bbb-NOT:  emitted-only-for-aaa
// bbb-SAME:                       emitted-only-for-bbb