rust/codegen at a4ffeb026326cf61b24589df742c2b1eb372b7e2 - rust

History

bors d9c4b8d475 Auto merge of #131572 - cuviper:ub-index_range, r=thomcc

Avoid superfluous UB checks in `IndexRange`

`IndexRange::len` is justified as an overall invariant, and
`take_prefix` and `take_suffix` are justified by local branch
conditions. A few more UB-checked calls remain in cases that are only
supported locally by `debug_assert!`, which won't do anything in
distributed builds, so those UB checks may still be useful.

We generally expect core's `#![rustc_preserve_ub_checks]` to optimize
away in user's release builds, but the mere presence of that extra code
can sometimes inhibit optimization, as seen in #131563.

2024-10-17 22:18:24 +00:00

auxiliary

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

avr

Let InstCombine remove Clone shims inside Clone shims

2024-07-25 15:14:42 -04:00

cffi

more asm! -> naked_asm! in tests

2024-10-06 18:12:25 +02:00

cross-crate-inlining

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debug-accessibility

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dllimports

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

enum

Update the minimum external LLVM to 18

2024-09-18 13:53:31 -07:00

float

Adjust tests for x86 "Rust" ABI changes

2024-07-12 10:47:56 +01:00

instrument-coverage

Disallow setting built-in cfgs via set the command-line

2024-08-07 14:08:34 +02:00

instrument-xray

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intrinsics

Don't codegen expect in opt-level=0

2024-09-04 11:49:00 +00:00

issues

Avoid superfluous UB checks in IndexRange

2024-10-11 16:22:43 -07:00

lib-optimizations

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

loongarch-abi

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

macos

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

meta-filecheck

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naked-fn

disallow asm! in #[naked] functions

2024-10-06 18:12:25 +02:00

non-terminate

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

patchable-function-entry

Updated code for changes to RFC, added additional error handling, added

2024-06-25 19:00:02 +02:00

remap_path_prefix

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repr

tests: Move wasm32 to transparent-opaque-ptr.rs test

2024-09-18 12:31:51 -07:00

riscv-abi

Let InstCombine remove Clone shims inside Clone shims

2024-07-25 15:14:42 -04:00

sanitizer

riscv64imac: allow shadow call stack sanitizer

2024-08-29 21:48:48 +08:00

simd

Ban non-array SIMD

2024-09-09 19:39:43 -07:00

simd-intrinsic

Ban non-array SIMD

2024-09-09 19:39:43 -07:00

src-hash-algorithm

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unwind-abis

Remove c_unwind from tests and fix tests

2024-06-19 13:54:55 +01:00

aarch64-struct-align-128.rs

Disallow setting built-in cfgs via set the command-line

2024-08-07 14:08:34 +02:00

abi-efiapi.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

abi-main-signature-16bit-c-int.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

abi-main-signature-32bit-c-int.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

abi-repr-ext.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

abi-sysv64.rs

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abi-x86_64_sysv.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

abi-x86-interrupt.rs

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addr-of-mutate.rs

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adjustments.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

align-byval-alignment-mismatch.rs

Remove c_unwind from tests and fix tests

2024-06-19 13:54:55 +01:00

align-byval-vector.rs

Ban non-array SIMD

2024-09-09 19:39:43 -07:00

align-byval.rs

tests: Remove test for wrong wasm codegen

2024-09-18 12:28:55 -07:00

align-enum.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

align-fn.rs

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align-offset.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

align-struct.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

alloc-optimisation.rs

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array-clone.rs

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array-cmp.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

array-codegen.rs

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array-equality.rs

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array-from_fn.rs

test(std): Add codegen test for array::from_fn optimization

2024-08-10 10:44:24 +08:00

array-map.rs

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array-optimized.rs

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array-repeat.rs

update codegen test for array::repeat

2024-06-19 17:48:05 +02:00

ascii-char.rs

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asm-arm64ec-clobbers.rs

Fix clobber_abi and disallow SVE-related registers in Arm64EC inline assembly

2024-10-14 05:30:45 +09:00

asm-clobber_abi.rs

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asm-clobbers.rs

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asm-goto.rs

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asm-may_unwind.rs

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asm-maybe-uninit.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

asm-msp430-clobbers.rs

Support clobber_abi in MSP430 inline assembly

2024-10-06 08:14:44 +09:00

asm-multiple-options.rs

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asm-options.rs

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asm-powerpc-clobbers.rs

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asm-s390x-clobbers.rs

Support clobber_abi and vector/access registers (clobber-only) in s390x inline assembly

2024-09-21 01:51:26 +09:00

asm-sanitize-llvm.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

asm-target-clobbers.rs

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async-closure-debug.rs

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async-fn-debug-awaitee-field.rs

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async-fn-debug-msvc.rs

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async-fn-debug.rs

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atomic-operations.rs

Reformat use declarations.

2024-07-29 08:26:52 +10:00

atomicptr.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

autovectorize-f32x4.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

binary-heap-peek-mut-pop-no-panic.rs

Avoid emptiness check in PeekMut::pop

2024-10-03 22:15:52 +08:00

binary-search-index-no-bound-check.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

bool-cmp.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

box-uninit-bytes.rs

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bpf-alu32.rs

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branch-protection-old-llvm.rs

Set branch protection function attributes

2024-07-24 17:13:25 +02:00

branch-protection.rs

Set branch protection function attributes

2024-07-24 17:13:25 +02:00

call-llvm-intrinsics.rs

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call-metadata.rs

Add range attribute to scalar function results and arguments

2024-08-11 19:40:44 +02:00

cast-optimized.rs

Add range attribute to scalar function results and arguments

2024-08-11 19:40:44 +02:00

cast-target-abi.rs

Add -Zlint-llvm-ir

2024-08-29 18:12:31 +08:00

catch-unwind.rs

Remove c_unwind from tests and fix tests

2024-06-19 13:54:55 +01:00

cdylib-external-inline-fns.rs

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cf-protection.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

cfguard-checks.rs

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2024-05-31 15:56:43 +10:00

cfguard-disabled.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

cfguard-nochecks.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

cfguard-non-msvc.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

char-ascii-branchless.rs

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checked_ilog.rs

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checked_math.rs

Also get add nuw from uN::checked_add

2024-06-23 13:29:06 -07:00

clone_as_copy.rs

Simplify the canonical clone method to copy

2024-09-14 13:30:35 +08:00

clone-shims.rs

Let InstCombine remove Clone shims inside Clone shims

2024-07-25 15:14:42 -04:00

codemodels.rs

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coercions.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

cold-call-declare-and-call.rs

Disallow setting built-in cfgs via set the command-line

2024-08-07 14:08:34 +02:00

common_prim_int_ptr.rs

Add range attribute to scalar function results and arguments

2024-08-11 19:40:44 +02:00

comparison-operators-2-tuple.rs

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comparison-operators-newtype.rs

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const_scalar_pair.rs

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const-vector.rs

Ban non-array SIMD

2024-09-09 19:39:43 -07:00

constant-branch.rs

Compute reachable locals as part of non_ssa_locals

2024-09-21 01:07:00 -04:00

consts.rs

Use FileCheck to parameterize codegen tests over hashes

2024-06-04 01:30:51 -07:00

coroutine-debug-msvc.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

coroutine-debug.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

dealloc-no-unwind.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

debug-alignment.rs

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debug-column-msvc.rs

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debug-column.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

debug-compile-unit-path.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

debug-fndef-size.rs

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debug-limited.rs

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debug-line-directives-only.rs

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debug-line-tables-only.rs

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debug-linkage-name.rs

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debug-vtable.rs

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debuginfo-constant-locals.rs

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debuginfo-generic-closure-env-names.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

debuginfo-inline-callsite-location.rs

Rework MIR inlining debuginfo so function parameters show up in debuggers.

2024-08-12 19:20:00 -07:00

deduced-param-attrs.rs

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default-requires-uwtable.rs

Disallow setting built-in cfgs via set the command-line

2024-08-07 14:08:34 +02:00

default-visibility.rs

Use Default visibility for rustc-generated C symbol declarations

2024-10-11 08:43:27 +11:00

direct-access-external-data.rs

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dont_codegen_private_const_fn_only_used_in_const_eval.rs

Also support generic constants

2024-06-05 15:40:11 +00:00

drop-in-place-noalias.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

drop.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

dst-offset.rs

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2024-05-31 15:56:43 +10:00

dst-vtable-align-nonzero.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

dst-vtable-size-range.rs

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ehcontguard_disabled.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

ehcontguard_enabled.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

emcripten-catch-unwind.rs

Let InstCombine remove Clone shims inside Clone shims

2024-07-25 15:14:42 -04:00

enable-lto-unit-splitting.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

error-provide.rs

Apply suggestion.

2024-06-16 17:19:25 +08:00

export-no-mangle.rs

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external-no-mangle-fns.rs

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external-no-mangle-statics.rs

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fastcall-inreg.rs

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fatptr.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

fewer-names.rs

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fixed-x18.rs

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float_math.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

fn-impl-trait-self.rs

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foo.s

…

force-frame-pointers.rs

test: ignore force-frame-pointers test on some targets

2024-06-23 00:40:43 -07:00

force-no-unwind-tables.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

force-unwind-tables.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

frame-pointer.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

function-arguments-noopt.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

function-arguments.rs

Add range attribute to scalar function results and arguments

2024-08-11 19:40:44 +02:00

function-return.rs

Add missing module flags for function-return=thunk-extern

2024-09-25 15:53:53 +02:00

gdb_debug_script_load.rs

Make more of the test suite run on Mac Catalyst

2024-05-28 12:31:33 +02:00

generic-debug.rs

reenable some windows tests

2024-07-14 13:48:29 +03:00

global_asm_include.rs

…

global_asm_x2.rs

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global_asm.rs

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i128-x86-align.rs

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infallible-unwrap-in-opt-z.rs

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inherit_overflow.rs

…

inline-always-works-always.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

inline-debuginfo.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

inline-function-args-debug-info.rs

Rework MIR inlining debuginfo so function parameters show up in debuggers.

2024-08-12 19:20:00 -07:00

inline-hint.rs

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instrument-mcount.rs

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integer-cmp.rs

llvm 20: adapt integer comparison tests

2024-08-22 13:23:00 +00:00

integer-overflow.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

internalize-closures.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

intrinsic-no-unnamed-attr.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

is_val_statically_known.rs

Fix is_val_statically_known for floats

2024-08-17 02:14:23 +01:00

issue-97217.rs

Update the minimum external LLVM to 18

2024-09-18 13:53:31 -07:00

iter-repeat-n-trivial-drop.rs

llvm: Tolerate propagated range metadata

2024-10-16 18:38:26 +00:00

layout-size-checks.rs

…

lifetime_start_end.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

link_section.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

link-dead-code.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

llvm_module_flags.rs

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llvm-ident.rs

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loads.rs

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local-generics-in-exe-internalized.rs

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lto-removes-invokes.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

mainsubprogram.rs

reenable some windows tests

2024-07-14 13:48:29 +03:00

mainsubprogramstart.rs

reenable some windows tests

2024-07-14 13:48:29 +03:00

match-optimized.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

match-optimizes-away.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

match-unoptimized.rs

…

maybeuninit-rvo.rs

Update the minimum external LLVM to 18

2024-09-18 13:53:31 -07:00

mem-replace-big-type.rs

ignore/fix layout-sensitive tests

2024-08-31 23:56:45 +02:00

mem-replace-simple-type.rs

…

merge-functions.rs

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method-declaration.rs

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mir_zst_stores.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

mir-aggregate-no-alloca.rs

Unify Rvalue::Aggregate paths in cg_ssa

2024-05-11 21:22:51 -07:00

mir-inlined-line-numbers.rs

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move-before-nocapture-ref-arg.rs

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move-operands.rs

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naked-asan.rs

various fixes for naked_asm! implementation

2024-10-06 19:00:09 +02:00

no_builtins-at-crate.rs

…

no-alloca-inside-if-false.rs

Compute reachable locals as part of non_ssa_locals

2024-09-21 01:07:00 -04:00

no-assumes-on-casts.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

no-dllimport-w-cross-lang-lto.rs

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no-jump-tables.rs

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no-plt.rs

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no-redundant-item-monomorphization.rs

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noalias-box-off.rs

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noalias-box.rs

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noalias-flag.rs

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noalias-freeze.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

noalias-refcell.rs

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noalias-rwlockreadguard.rs

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noalias-unpin.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

noreturn-uninhabited.rs

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noreturnflag.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

nounwind.rs

reenable some windows tests

2024-07-14 13:48:29 +03:00

nrvo.rs

…

optimize-attr-1.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

option-as-slice.rs

Add precondition checks to ptr::offset, ptr::add, ptr::sub

2024-10-07 11:12:58 -04:00

option-niche-eq.rs

Update the minimum external LLVM to 18

2024-09-18 13:53:31 -07:00

overaligned-constant.rs

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packed.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

panic-abort-windows.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

panic-in-drop-abort.rs

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panic-unwind-default-uwtable.rs

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pattern_type_symbols.rs

Use FileCheck to parameterize codegen tests over hashes

2024-06-04 01:30:51 -07:00

personality_lifetimes.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

pgo-counter-bias.rs

Use -Zno-profiler-runtime instead of //@ needs-profiler-support

2024-06-14 13:31:46 +10:00

pgo-instrumentation.rs

Use -Zno-profiler-runtime instead of //@ needs-profiler-support

2024-06-14 13:31:46 +10:00

pic-relocation-model.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

pie-relocation-model.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

placement-new.rs

allocate before calling T::default in <Arc<T>>::default()

2024-10-10 09:50:35 -04:00

powerpc64le-struct-align-128.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

precondition-checks.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

ptr-arithmetic.rs

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ptr-read-metadata.rs

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range-attribute.rs

Add range attribute to scalar function results and arguments

2024-08-11 19:40:44 +02:00

README.md

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refs.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

repeat-trusted-len.rs

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riscv-target-abi.rs

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scalar-pair-bool.rs

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set-discriminant-invalid.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

skip-mono-inside-if-false.rs

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slice_as_from_ptr_range.rs

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slice-as_chunks.rs

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slice-indexing.rs

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slice-init.rs

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slice-iter-fold.rs

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slice-iter-len-eq-zero.rs

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slice-iter-nonnull.rs

ignore/fix layout-sensitive tests

2024-08-31 23:56:45 +02:00

slice-pointer-nonnull-unwrap.rs

Update the minimum external LLVM to 18

2024-09-18 13:53:31 -07:00

slice-position-bounds-check.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

slice-ref-equality.rs

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slice-reverse.rs

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slice-windows-no-bounds-check.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

some-abis-do-extend-params-to-32-bits.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

some-global-nonnull.rs

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sparc-struct-abi.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

split-lto-unit.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

sroa-fragment-debuginfo.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

sse42-implies-crc32.rs

Fix codegen tests

2024-08-07 00:41:48 -04:00

stack-probes-inline.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

stack-protector.rs

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static-relocation-model-msvc.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

staticlib-external-inline-fns.rs

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step_by-overflow-checks.rs

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stores.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

swap-large-types.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

swap-small-types.rs

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target-cpu-on-functions.rs

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target-feature-inline-closure.rs

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target-feature-overrides.rs

Add implied features to non-target-feature functions

2024-08-07 00:41:48 -04:00

thread-local.rs

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tied-features-strength.rs

tests: Update with new aarch64 target features

2024-08-27 12:06:30 +00:00

to_vec.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

trailing_zeros.rs

…

transmute-optimized.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

transmute-scalar.rs

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try_question_mark_nop.rs

tests: allow trunc/select instructions to be missing

2024-09-17 08:55:26 -04:00

tune-cpu-on-functions.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

tuple-layout-opt.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

ub-checks.rs

…

unchecked_shifts.rs

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unchecked-float-casts.rs

…

uninit-consts.rs

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union-abi.rs

Ban non-array SIMD

2024-09-09 19:39:43 -07:00

unwind-and-panic-abort.rs

Remove c_unwind from tests and fix tests

2024-06-19 13:54:55 +01:00

unwind-extern-exports.rs

Remove c_unwind from tests and fix tests

2024-06-19 13:54:55 +01:00

unwind-extern-imports.rs

Remove c_unwind from tests and fix tests

2024-06-19 13:54:55 +01:00

unwind-landingpad-cold.rs

Update the minimum external LLVM to 18

2024-09-18 13:53:31 -07:00

unwind-landingpad-inline.rs

Update the minimum external LLVM to 18

2024-09-18 13:53:31 -07:00

used_with_arg.rs

…

var-names.rs

…

vec_pop_push_noop.rs

…

vec-as-ptr.rs

…

vec-calloc.rs

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vec-in-place.rs

add codegen test for issue 120493

2024-05-20 09:21:09 -05:00

vec-iter-collect-len.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

vec-iter.rs

…

vec-len-invariant.rs

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vec-optimizes-away.rs

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vec-reserve-extend.rs

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vec-shrink-panik.rs

…

vec-with-capacity.rs

…

vecdeque_no_panic.rs

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vecdeque_pop_push.rs

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vecdeque-drain.rs

ignore/fix layout-sensitive tests

2024-08-31 23:56:45 +02:00

vecdeque-nonempty-get-no-panic.rs

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virtual-function-elimination-32bit.rs

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virtual-function-elimination.rs

Use FileCheck to parameterize codegen tests over hashes

2024-06-04 01:30:51 -07:00

vtable-loads.rs

Omit non-needs_drop drop_in_place in vtables

2024-05-27 16:26:56 -04:00

vtable-upcast.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

wasm_casts_trapping.rs

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wasm_exceptions.rs

Fix wasm_exceptions test

2024-06-19 21:26:48 +01:00

zip.rs

Run rustfmt on tests/codegen/.

2024-05-31 15:56:43 +10:00

zst-offset.rs

Ban non-array SIMD

2024-09-09 19:39:43 -07:00

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