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auxiliary
auxiliary
 
 
avr
avr
 
 
dllimports
dllimports
 
 
instrument-xray
instrument-xray
 
 
intrinsics
intrinsics
 
 
issues
issues
 
 
non-terminate
non-terminate
 
 
remap_path_prefix
remap_path_prefix
 
 
riscv-abi
riscv-abi
 
 
simd-intrinsic
simd-intrinsic
 
 
src-hash-algorithm
src-hash-algorithm
 
 
unwind-abis
unwind-abis
 
 
README.md
README.md
 
 
abi-efiapi.rs
abi-efiapi.rs
 
 
abi-main-signature-16bit-c-int.rs
abi-main-signature-16bit-c-int.rs
 
 
abi-main-signature-32bit-c-int.rs
abi-main-signature-32bit-c-int.rs
 
 
abi-repr-ext.rs
abi-repr-ext.rs
 
 
abi-sysv64.rs
abi-sysv64.rs
 
 
abi-x86-interrupt.rs
abi-x86-interrupt.rs
 
 
abi-x86_64_sysv.rs
abi-x86_64_sysv.rs
 
 
adjustments.rs
adjustments.rs
 
 
align-enum.rs
align-enum.rs
 
 
align-fn.rs
align-fn.rs
 
 
align-struct.rs
align-struct.rs
 
 
alloc-optimisation.rs
alloc-optimisation.rs
 
 
array-clone.rs
array-clone.rs
 
 
array-equality.rs
array-equality.rs
 
 
array-map.rs
array-map.rs
 
 
asm-clobber_abi.rs
asm-clobber_abi.rs
 
 
asm-clobbers.rs
asm-clobbers.rs
 
 
asm-may_unwind.rs
asm-may_unwind.rs
 
 
asm-multiple-options.rs
asm-multiple-options.rs
 
 
asm-options.rs
asm-options.rs
 
 
asm-powerpc-clobbers.rs
asm-powerpc-clobbers.rs
 
 
asm-sanitize-llvm.rs
asm-sanitize-llvm.rs
 
 
asm-target-clobbers.rs
asm-target-clobbers.rs
 
 
async-fn-debug-awaitee-field.rs
async-fn-debug-awaitee-field.rs
 
 
async-fn-debug-msvc.rs
async-fn-debug-msvc.rs
 
 
async-fn-debug.rs
async-fn-debug.rs
 
 
atomic-operations.rs
atomic-operations.rs
 
 
autovectorize-f32x4.rs
autovectorize-f32x4.rs
 
 
binary-search-index-no-bound-check.rs
binary-search-index-no-bound-check.rs
 
 
bool-cmp.rs
bool-cmp.rs
 
 
box-maybe-uninit-llvm14.rs
box-maybe-uninit-llvm14.rs
 
 
box-maybe-uninit.rs
box-maybe-uninit.rs
 
 
bpf-alu32.rs
bpf-alu32.rs
 
 
branch-protection.rs
branch-protection.rs
 
 
c-variadic-copy.rs
c-variadic-copy.rs
 
 
c-variadic-opt.rs
c-variadic-opt.rs
 
 
c-variadic.rs
c-variadic.rs
 
 
call-llvm-intrinsics.rs
call-llvm-intrinsics.rs
 
 
call-metadata.rs
call-metadata.rs
 
 
catch-unwind.rs
catch-unwind.rs
 
 
cdylib-external-inline-fns.rs
cdylib-external-inline-fns.rs
 
 
cf-protection.rs
cf-protection.rs
 
 
cfguard-checks.rs
cfguard-checks.rs
 
 
cfguard-disabled.rs
cfguard-disabled.rs
 
 
cfguard-nochecks.rs
cfguard-nochecks.rs
 
 
cfguard-non-msvc.rs
cfguard-non-msvc.rs
 
 
codemodels.rs
codemodels.rs
 
 
coercions.rs
coercions.rs
 
 
cold-call-declare-and-call.rs
cold-call-declare-and-call.rs
 
 
comparison-operators-2-tuple.rs
comparison-operators-2-tuple.rs
 
 
comparison-operators-newtype.rs
comparison-operators-newtype.rs
 
 
consts.rs
consts.rs
 
 
dealloc-no-unwind.rs
dealloc-no-unwind.rs
 
 
debug-alignment.rs
debug-alignment.rs
 
 
debug-column-msvc.rs
debug-column-msvc.rs
 
 
debug-column.rs
debug-column.rs
 
 
debug-compile-unit-path.rs
debug-compile-unit-path.rs
 
 
debug-linkage-name.rs
debug-linkage-name.rs
 
 
debug-vtable.rs
debug-vtable.rs
 
 
debuginfo-generic-closure-env-names.rs
debuginfo-generic-closure-env-names.rs
 
 
deduced-param-attrs.rs
deduced-param-attrs.rs
 
 
default-requires-uwtable.rs
default-requires-uwtable.rs
 
 
drop.rs
drop.rs
 
 
dst-vtable-align-nonzero.rs
dst-vtable-align-nonzero.rs
 
 
dst-vtable-size-range.rs
dst-vtable-size-range.rs
 
 
enum-bounds-check-derived-idx.rs
enum-bounds-check-derived-idx.rs
 
 
enum-bounds-check-issue-13926.rs
enum-bounds-check-issue-13926.rs
 
 
enum-bounds-check-issue-82871.rs
enum-bounds-check-issue-82871.rs
 
 
enum-bounds-check.rs
enum-bounds-check.rs
 
 
enum-debug-clike.rs
enum-debug-clike.rs
 
 
enum-debug-niche-2.rs
enum-debug-niche-2.rs
 
 
enum-debug-niche.rs
enum-debug-niche.rs
 
 
enum-debug-tagged.rs
enum-debug-tagged.rs
 
 
enum-discriminant-value.rs
enum-discriminant-value.rs
 
 
enum-match.rs
enum-match.rs
 
 
export-no-mangle.rs
export-no-mangle.rs
 
 
external-no-mangle-fns.rs
external-no-mangle-fns.rs
 
 
external-no-mangle-statics.rs
external-no-mangle-statics.rs
 
 
fastcall-inreg.rs
fastcall-inreg.rs
 
 
fatptr.rs
fatptr.rs
 
 
fewer-names.rs
fewer-names.rs
 
 
ffi-const.rs
ffi-const.rs
 
 
ffi-out-of-bounds-loads.rs
ffi-out-of-bounds-loads.rs
 
 
ffi-pure.rs
ffi-pure.rs
 
 
ffi-returns-twice.rs
ffi-returns-twice.rs
 
 
float_math.rs
float_math.rs
 
 
fn-impl-trait-self.rs
fn-impl-trait-self.rs
 
 
foo.s
foo.s
 
 
force-frame-pointers.rs
force-frame-pointers.rs
 
 
force-no-unwind-tables.rs
force-no-unwind-tables.rs
 
 
force-unwind-tables.rs
force-unwind-tables.rs
 
 
frame-pointer.rs
frame-pointer.rs
 
 
function-arguments-noopt.rs
function-arguments-noopt.rs
 
 
function-arguments.rs
function-arguments.rs
 
 
gdb_debug_script_load.rs
gdb_debug_script_load.rs
 
 
generator-debug-msvc.rs
generator-debug-msvc.rs
 
 
generator-debug.rs
generator-debug.rs
 
 
generic-debug.rs
generic-debug.rs
 
 
global_asm.rs
global_asm.rs
 
 
global_asm_include.rs
global_asm_include.rs
 
 
global_asm_x2.rs
global_asm_x2.rs
 
 
i686-macosx-deployment-target.rs
i686-macosx-deployment-target.rs
 
 
i686-no-macosx-deployment-target.rs
i686-no-macosx-deployment-target.rs
 
 
inherit_overflow.rs
inherit_overflow.rs
 
 
inline-always-works-always.rs
inline-always-works-always.rs
 
 
inline-debuginfo.rs
inline-debuginfo.rs
 
 
inline-hint.rs
inline-hint.rs
 
 
instrument-coverage.rs
instrument-coverage.rs
 
 
instrument-mcount.rs
instrument-mcount.rs
 
 
integer-cmp.rs
integer-cmp.rs
 
 
integer-overflow.rs
integer-overflow.rs
 
 
internalize-closures.rs
internalize-closures.rs
 
 
intrinsic-no-unnamed-attr.rs
intrinsic-no-unnamed-attr.rs
 
 
iter-repeat-n-trivial-drop.rs
iter-repeat-n-trivial-drop.rs
 
 
layout-size-checks.rs
layout-size-checks.rs
 
 
lifetime_start_end.rs
lifetime_start_end.rs
 
 
link-dead-code.rs
link-dead-code.rs
 
 
link_section.rs
link_section.rs
 
 
loads.rs
loads.rs
 
 
local-generics-in-exe-internalized.rs
local-generics-in-exe-internalized.rs
 
 
lto-removes-invokes.rs
lto-removes-invokes.rs
 
 
mainsubprogram.rs
mainsubprogram.rs
 
 
mainsubprogramstart.rs
mainsubprogramstart.rs
 
 
match-optimized.rs
match-optimized.rs
 
 
match-optimizes-away.rs
match-optimizes-away.rs
 
 
match-unoptimized.rs
match-unoptimized.rs
 
 
mem-replace-big-type.rs
mem-replace-big-type.rs
 
 
mem-replace-direct-memcpy.rs
mem-replace-direct-memcpy.rs
 
 
merge-functions.rs
merge-functions.rs
 
 
mir-inlined-line-numbers.rs
mir-inlined-line-numbers.rs
 
 
mir_zst_stores.rs
mir_zst_stores.rs
 
 
move-operands.rs
move-operands.rs
 
 
naked-functions.rs
naked-functions.rs
 
 
naked-nocoverage.rs
naked-nocoverage.rs
 
 
naked-noinline.rs
naked-noinline.rs
 
 
no-assumes-on-casts.rs
no-assumes-on-casts.rs
 
 
no-dllimport-w-cross-lang-lto.rs
no-dllimport-w-cross-lang-lto.rs
 
 
no-jump-tables.rs
no-jump-tables.rs
 
 
no-plt.rs
no-plt.rs
 
 
noalias-box-off.rs
noalias-box-off.rs
 
 
noalias-box.rs
noalias-box.rs
 
 
noalias-flag.rs
noalias-flag.rs
 
 
noalias-refcell.rs
noalias-refcell.rs
 
 
noalias-rwlockreadguard.rs
noalias-rwlockreadguard.rs
 
 
noalias-unpin.rs
noalias-unpin.rs
 
 
noreturn-uninhabited.rs
noreturn-uninhabited.rs
 
 
noreturnflag.rs
noreturnflag.rs
 
 
nounwind.rs
nounwind.rs
 
 
nrvo.rs
nrvo.rs
 
 
optimize-attr-1.rs
optimize-attr-1.rs
 
 
option-as-slice.rs
option-as-slice.rs
 
 
option-nonzero-eq.rs
option-nonzero-eq.rs
 
 
packed.rs
packed.rs
 
 
panic-abort-windows.rs
panic-abort-windows.rs
 
 
panic-in-drop-abort.rs
panic-in-drop-abort.rs
 
 
panic-unwind-default-uwtable.rs
panic-unwind-default-uwtable.rs
 
 
personality_lifetimes.rs
personality_lifetimes.rs
 
 
pgo-counter-bias.rs
pgo-counter-bias.rs
 
 
pgo-instrumentation.rs
pgo-instrumentation.rs
 
 
pic-relocation-model.rs
pic-relocation-model.rs
 
 
pie-relocation-model.rs
pie-relocation-model.rs
 
 
ptr-read-metadata.rs
ptr-read-metadata.rs
 
 
refs.rs
refs.rs
 
 
repeat-trusted-len.rs
repeat-trusted-len.rs
 
 
repr-transparent-aggregates-1.rs
repr-transparent-aggregates-1.rs
 
 
repr-transparent-aggregates-2.rs
repr-transparent-aggregates-2.rs
 
 
repr-transparent-aggregates-3.rs
repr-transparent-aggregates-3.rs
 
 
repr-transparent-sysv64.rs
repr-transparent-sysv64.rs
 
 
repr-transparent.rs
repr-transparent.rs
 
 
sanitizer-cfi-add-canonical-jump-tables-flag.rs
sanitizer-cfi-add-canonical-jump-tables-flag.rs
 
 
sanitizer-cfi-emit-type-checks.rs
sanitizer-cfi-emit-type-checks.rs
 
 
sanitizer-cfi-emit-type-metadata-id-itanium-cxx-abi.rs
sanitizer-cfi-emit-type-metadata-id-itanium-cxx-abi.rs
 
 
sanitizer-cfi-emit-type-metadata-itanium-cxx-abi.rs
sanitizer-cfi-emit-type-metadata-itanium-cxx-abi.rs
 
 
sanitizer-kasan-emits-instrumentation.rs
sanitizer-kasan-emits-instrumentation.rs
 
 
sanitizer-kcfi-add-kcfi-flag.rs
sanitizer-kcfi-add-kcfi-flag.rs
 
 
sanitizer-kcfi-emit-kcfi-operand-bundle-itanium-cxx-abi.rs
sanitizer-kcfi-emit-kcfi-operand-bundle-itanium-cxx-abi.rs
 
 
sanitizer-memory-track-orgins.rs
sanitizer-memory-track-orgins.rs
 
 
sanitizer-no-sanitize-inlining.rs
sanitizer-no-sanitize-inlining.rs
 
 
sanitizer-no-sanitize.rs
sanitizer-no-sanitize.rs
 
 
sanitizer-recover.rs
sanitizer-recover.rs
 
 
sanitizer_memtag_attr_check.rs
sanitizer_memtag_attr_check.rs
 
 
sanitizer_scs_attr_check.rs
sanitizer_scs_attr_check.rs
 
 
scalar-pair-bool.rs
scalar-pair-bool.rs
 
 
set-discriminant-invalid.rs
set-discriminant-invalid.rs
 
 
simd-wide-sum.rs
simd-wide-sum.rs
 
 
simd_arith_offset.rs
simd_arith_offset.rs
 
 
slice-as_chunks.rs
slice-as_chunks.rs
 
 
slice-indexing.rs
slice-indexing.rs
 
 
slice-init.rs
slice-init.rs
 
 
slice-iter-len-eq-zero.rs
slice-iter-len-eq-zero.rs
 
 
slice-position-bounds-check.rs
slice-position-bounds-check.rs
 
 
slice-ref-equality.rs
slice-ref-equality.rs
 
 
slice-reverse.rs
slice-reverse.rs
 
 
slice-windows-no-bounds-check.rs
slice-windows-no-bounds-check.rs
 
 
slice_as_from_ptr_range.rs
slice_as_from_ptr_range.rs
 
 
some-abis-do-extend-params-to-32-bits.rs
some-abis-do-extend-params-to-32-bits.rs
 
 
some-global-nonnull.rs
some-global-nonnull.rs
 
 
sparc-struct-abi.rs
sparc-struct-abi.rs
 
 
sse42-implies-crc32.rs
sse42-implies-crc32.rs
 
 
stack-probes-call.rs
stack-probes-call.rs
 
 
stack-probes-inline.rs
stack-probes-inline.rs
 
 
stack-protector.rs
stack-protector.rs
 
 
static-relocation-model-msvc.rs
static-relocation-model-msvc.rs
 
 
staticlib-external-inline-fns.rs
staticlib-external-inline-fns.rs
 
 
stores.rs
stores.rs
 
 
swap-large-types.rs
swap-large-types.rs
 
 
swap-simd-types.rs
swap-simd-types.rs
 
 
swap-small-types.rs
swap-small-types.rs
 
 
target-cpu-on-functions.rs
target-cpu-on-functions.rs
 
 
target-feature-overrides.rs
target-feature-overrides.rs
 
 
thread-local.rs
thread-local.rs
 
 
to_vec.rs
to_vec.rs
 
 
transmute-scalar.rs
transmute-scalar.rs
 
 
try_identity.rs
try_identity.rs
 
 
try_question_mark_nop.rs
try_question_mark_nop.rs
 
 
tune-cpu-on-functions.rs
tune-cpu-on-functions.rs
 
 
tuple-layout-opt.rs
tuple-layout-opt.rs
 
 
unchecked-float-casts.rs
unchecked-float-casts.rs
 
 
unchecked_shifts.rs
unchecked_shifts.rs
 
 
uninit-consts.rs
uninit-consts.rs
 
 
union-abi.rs
union-abi.rs
 
 
unpadded-simd.rs
unpadded-simd.rs
 
 
unwind-and-panic-abort.rs
unwind-and-panic-abort.rs
 
 
unwind-extern-exports.rs
unwind-extern-exports.rs
 
 
unwind-extern-imports.rs
unwind-extern-imports.rs
 
 
used_with_arg.rs
used_with_arg.rs
 
 
var-names.rs
var-names.rs
 
 
vec-as-ptr.rs
vec-as-ptr.rs
 
 
vec-calloc-llvm14.rs
vec-calloc-llvm14.rs
 
 
vec-calloc.rs
vec-calloc.rs
 
 
vec-in-place.rs
vec-in-place.rs
 
 
vec-iter-collect-len.rs
vec-iter-collect-len.rs
 
 
vec-optimizes-away.rs
vec-optimizes-away.rs
 
 
vec-shrink-panik.rs
vec-shrink-panik.rs
 
 
vecdeque_no_panic.rs
vecdeque_no_panic.rs
 
 
virtual-function-elimination-32bit.rs
virtual-function-elimination-32bit.rs
 
 
virtual-function-elimination.rs
virtual-function-elimination.rs
 
 
wasm_casts_trapping.rs
wasm_casts_trapping.rs
 
 
x86_64-macosx-deployment-target.rs
x86_64-macosx-deployment-target.rs
 
 
x86_64-no-macosx-deployment-target.rs
x86_64-no-macosx-deployment-target.rs
 
 
zip.rs
zip.rs
 
 
zst-offset.rs
zst-offset.rs
 
 

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