rust/tests/codegen at 673ce2a6c99fd8d1fa205fa73fc2f3adee93a03a - rust

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Folkert de Vries 8147646531 fix -Zmin-function-alignment without attributes

the minimum function alignment was skipped on functions without attributes. That is because in our testing we generally apply `#[no_mangle]` to functions that are tested. I've added a test now that deliberately has no attributes

2025-06-23 20:26:04 +02:00

asm

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autodiff

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autovec

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auxiliary

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avr

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bounds-checking

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cffi

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compiletest-self-test

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cross-crate-inlining

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debug-accessibility

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debuginfo-proc-macro

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dllimports

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enum

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ergonomic-clones

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float

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hint

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instrument-coverage

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instrument-xray

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intrinsics

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issues

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lib-optimizations

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loongarch-abi

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macos

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meta-filecheck

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naked-fn

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non-terminate

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option-niche-unfixed

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patchable-function-entry

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remap_path_prefix

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repr

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riscv-abi

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sanitizer

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simd

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simd-intrinsic

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src-hash-algorithm

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unwind-abis

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aarch64-softfloat.rs

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aarch64-struct-align-128.rs

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abi-efiapi.rs

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

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

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abi-repr-ext.rs

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abi-sysv64.rs

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abi-win64-zst.rs

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abi-x86_64_sysv.rs

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abi-x86-interrupt.rs

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abi-x86-sse.rs

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addr-of-mutate.rs

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adjustments.rs

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align-byval-alignment-mismatch.rs

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align-byval-vector.rs

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align-byval.rs

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align-enum.rs

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align-fn.rs

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align-offset.rs

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align-struct.rs

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alloc-optimisation.rs

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amdgpu-addrspacecast.rs

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array-clone.rs

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array-cmp.rs

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array-codegen.rs

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array-equality.rs

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array-from_fn.rs

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array-map.rs

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array-optimized.rs

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array-repeat.rs

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ascii-char.rs

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assign-desugar-debuginfo.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

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atomicptr.rs

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autodiffv2.rs

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autovectorize-f32x4.rs

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bigint-helpers.rs

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

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

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bool-cmp.rs

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box-default-debug-copies.rs

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box-uninit-bytes.rs

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bpf-alu32.rs

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branch-protection.rs

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call-llvm-intrinsics.rs

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call-tmps-lifetime.rs

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cast-optimized.rs

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cast-target-abi.rs

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catch-unwind.rs

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cdylib-external-inline-fns.rs

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cf-protection.rs

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cfguard-checks.rs

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cfguard-disabled.rs

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cfguard-nochecks.rs

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cfguard-non-msvc.rs

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char-ascii-branchless.rs

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char-escape-debug-no-bounds-check.rs

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checked_ilog.rs

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checked_math.rs

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clone_as_copy.rs

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clone-shims.rs

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codemodels.rs

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coercions.rs

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cold-call-declare-and-call.rs

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common_prim_int_ptr.rs

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comparison-operators-2-struct.rs

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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-array.rs

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const-vector.rs

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constant-branch.rs

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consts.rs

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coroutine-debug-msvc.rs

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coroutine-debug.rs

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dealloc-no-unwind.rs

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debug-alignment.rs

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debug-column-msvc.rs

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debug-column.rs

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debug-compile-unit-path.rs

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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

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debuginfo-inline-callsite-location.rs

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deduced-param-attrs.rs

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default-requires-uwtable.rs

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default-visibility.rs

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direct-access-external-data.rs

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dont_codegen_private_const_fn_only_used_in_const_eval.rs

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drop-in-place-noalias.rs

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drop.rs

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dst-offset.rs

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dst-vtable-align-nonzero.rs

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dst-vtable-size-range.rs

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ehcontguard_disabled.rs

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ehcontguard_enabled.rs

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emscripten-catch-unwind-js-eh.rs

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emscripten-catch-unwind-wasm-eh.rs

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enable-lto-unit-splitting.rs

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error-provide.rs

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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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f128-wasm32-callconv.rs

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fastcall-inreg.rs

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fatptr.rs

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fewer-names.rs

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fixed-x18.rs

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float_math.rs

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fn-impl-trait-self.rs

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force-frame-pointers.rs

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force-no-unwind-tables.rs

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force-unwind-tables.rs

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frame-pointer-cli-control.rs

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frame-pointer.rs

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function-arguments-noopt.rs

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function-arguments.rs

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function-return.rs

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gdb_debug_script_load.rs

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generic-debug.rs

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gep-index.rs

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gpu-kernel-abi.rs

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i128-wasm32-callconv.rs

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i128-x86-align.rs

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i128-x86-callconv.rs

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infallible-unwrap-in-opt-z.rs

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inherit_overflow.rs

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inline-always-works-always.rs

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inline-debuginfo.rs

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inline-function-args-debug-info.rs

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inline-hint.rs

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instrument-mcount.rs

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integer-cmp.rs

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integer-overflow.rs

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internalize-closures.rs

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intrinsic-no-unnamed-attr.rs

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is_val_statically_known.rs

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issue-97217.rs

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iter-repeat-n-trivial-drop.rs

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layout-size-checks.rs

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lifetime_start_end.rs

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link_section.rs

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link-dead-code.rs

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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

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mainsubprogram.rs

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match-optimized.rs

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match-optimizes-away.rs

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match-unoptimized.rs

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maybeuninit-rvo.rs

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mem-replace-big-type.rs

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mem-replace-simple-type.rs

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merge-functions.rs

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method-declaration.rs

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min-function-alignment.rs

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mir_zst_stores.rs

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mir-aggregate-no-alloca.rs

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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

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no_builtins-at-crate.rs

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no-alloca-inside-if-false.rs

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no-assumes-on-casts.rs

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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

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noalias-refcell.rs

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noalias-rwlockreadguard.rs

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noalias-unpin.rs

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noreturn-uninhabited.rs

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noreturnflag.rs

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nounwind.rs

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nrvo.rs

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optimize-attr-1.rs

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option-as-slice.rs

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option-niche-eq.rs

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overaligned-constant.rs

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packed.rs

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panic-abort-windows.rs

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panic-in-drop-abort.rs

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panic-unwind-default-uwtable.rs

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pattern_type_symbols.rs

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personality_lifetimes.rs

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pgo-counter-bias.rs

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pgo-instrumentation.rs

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pic-relocation-model.rs

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pie-relocation-model.rs

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placement-new.rs

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powerpc64le-struct-align-128.rs

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precondition-checks.rs

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ptr-arithmetic.rs

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ptr-read-metadata.rs

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range_to_inclusive.rs

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range-attribute.rs

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range-loop.rs

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README.md

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refs.rs

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reg-struct-return.rs

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regparm-inreg.rs

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repeat-trusted-len.rs

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retpoline.rs

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riscv-target-abi.rs

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rust-abi-arch-specific-adjustment.rs

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s390x-simd.rs

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scalar-pair-bool.rs

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set-discriminant-invalid.rs

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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-is-ascii.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

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slice-last-elements-optimization.rs

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slice-pointer-nonnull-unwrap.rs

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slice-position-bounds-check.rs

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slice-ref-equality.rs

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slice-reverse.rs

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slice-split-at.rs

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slice-windows-no-bounds-check.rs

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

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some-global-nonnull.rs

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sparc-struct-abi.rs

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split-lto-unit.rs

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sroa-fragment-debuginfo.rs

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sse42-implies-crc32.rs

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stack-probes-inline.rs

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stack-protector.rs

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static-relocation-model-msvc.rs

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staticlib-external-inline-fns.rs

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step_by-overflow-checks.rs

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stores.rs

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string-push.rs

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swap-large-types.rs

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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-negative-implication.rs

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target-feature-overrides.rs

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terminating-catchpad.rs

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thread-local.rs

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tied-features-strength.rs

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to_vec.rs

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trailing_zeros.rs

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transmute-optimized.rs

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transmute-scalar.rs

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try_question_mark_nop.rs

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tune-cpu-on-functions.rs

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tuple-layout-opt.rs

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ub-checks.rs

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unchecked_shifts.rs

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unchecked-float-casts.rs

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uninhabited-transparent-return-abi.rs

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uninit-consts.rs

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uninit-repeat-in-aggregate.rs

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union-abi.rs

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unwind-and-panic-abort.rs

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unwind-extern-exports.rs

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unwind-extern-imports.rs

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unwind-landingpad-cold.rs

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unwind-landingpad-inline.rs

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used_with_arg.rs

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var-names.rs

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vec_pop_push_noop.rs

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vec-as-ptr.rs

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vec-calloc.rs

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vec-in-place.rs

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vec-iter-collect-len.rs

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vec-iter.rs

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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

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vec-with-capacity.rs

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vecdeque_no_panic.rs

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vecdeque_pop_push.rs

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vecdeque-drain.rs

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vecdeque-nonempty-get-no-panic.rs

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virtual-call-attrs-issue-137646.rs

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virtual-function-elimination-32bit.rs

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virtual-function-elimination.rs

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vtable-loads.rs

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vtable-upcast.rs

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wasm_casts_trapping.rs

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wasm_exceptions.rs

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zip.rs

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zst-offset.rs

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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