rust/tests/codegen
bors 31d74fb24b Auto merge of #109220 - nikic:poison, r=cuviper
Use poison instead of undef

In cases where it is legal, we should prefer poison values over undef values.

This replaces undef with poison for aggregate construction and for uninhabited types. There are more places where we can likely use poison, but I wanted to stay conservative to start with.

In particular the aggregate case is important for newer LLVM versions, which are not able to handle an undef base value during early optimization due to poison-propagation concerns.

r? `@cuviper`
2023-03-24 15:39:40 +00:00
..
auxiliary Also move the auxiliary file 2023-03-20 10:25:29 +00:00
avr abi: add AddressSpace field to Primitive::Pointer 2023-01-22 23:41:39 -05:00
dllimports Add more codegen tests 2023-01-17 16:23:22 +01:00
instrument-xray Test XRay only for supported targets 2023-02-09 12:29:43 +09:00
intrinsics Add CastKind::Transmute to MIR 2023-03-22 15:15:41 -07:00
issues Also move the auxiliary file 2023-03-20 10:25:29 +00:00
non-terminate
remap_path_prefix Update tests 2023-02-25 21:43:25 +01:00
riscv-abi Put noundef on all scalars that don't allow uninit 2023-01-17 08:14:35 +01:00
simd-intrinsic Try to fix codegen tests for ??? LLVM 14 ??? 2023-02-14 19:49:49 -05:00
src-hash-algorithm
unwind-abis
abi-efiapi.rs Stabilize abi_efiapi feature 2023-01-11 20:42:13 -05:00
abi-main-signature-16bit-c-int.rs
abi-main-signature-32bit-c-int.rs
abi-repr-ext.rs
abi-sysv64.rs Add more codegen tests 2023-01-17 16:23:22 +01:00
abi-x86_64_sysv.rs
abi-x86-interrupt.rs Add more codegen tests 2023-01-17 16:23:22 +01:00
adjustments.rs Use poison instead of undef 2023-03-16 15:07:04 +01:00
align-enum.rs
align-fn.rs
align-struct.rs
alloc-optimisation.rs
array-clone.rs
array-equality.rs Merge two different equality specialization traits in core 2023-03-01 14:42:06 -08:00
array-map.rs Revert "Auto merge of #107224 - nikic:llvm-16, r=cuviper" 2023-03-18 23:49:24 +01:00
asm-clobber_abi.rs
asm-clobbers.rs
asm-may_unwind.rs
asm-multiple-options.rs
asm-options.rs
asm-powerpc-clobbers.rs
asm-sanitize-llvm.rs
asm-target-clobbers.rs
async-fn-debug-awaitee-field.rs
async-fn-debug-msvc.rs
async-fn-debug.rs
atomic-operations.rs
autovectorize-f32x4.rs Add another autovectorization codegen test using array zip-map 2023-02-04 16:44:53 -08:00
binary-search-index-no-bound-check.rs
bool-cmp.rs
box-maybe-uninit-llvm14.rs Put noundef on all scalars that don't allow uninit 2023-01-17 08:14:35 +01:00
box-maybe-uninit.rs Put noundef on all scalars that don't allow uninit 2023-01-17 08:14:35 +01:00
bpf-alu32.rs
branch-protection.rs
c-variadic-copy.rs
c-variadic-opt.rs
c-variadic.rs Add more codegen tests 2023-01-17 16:23:22 +01:00
call-llvm-intrinsics.rs Add more codegen tests 2023-01-17 16:23:22 +01:00
call-metadata.rs
catch-unwind.rs
cdylib-external-inline-fns.rs
cf-protection.rs
cfguard-checks.rs
cfguard-disabled.rs
cfguard-nochecks.rs
cfguard-non-msvc.rs
codemodels.rs
coercions.rs
cold-call-declare-and-call.rs
comparison-operators-2-tuple.rs Use partial_cmp to implement tuple lt/le/ge/gt 2023-02-16 23:59:13 -08:00
comparison-operators-newtype.rs Put noundef on all scalars that don't allow uninit 2023-01-17 08:14:35 +01:00
consts.rs Update tests 2023-02-25 21:43:25 +01:00
dealloc-no-unwind.rs
debug-alignment.rs
debug-column-msvc.rs
debug-column.rs
debug-compile-unit-path.rs
debug-linkage-name.rs
debug-vtable.rs Don't merge vtables when full debuginfo is enabled. 2023-01-27 15:29:04 +00:00
debuginfo-generic-closure-env-names.rs
deduced-param-attrs.rs
default-requires-uwtable.rs
drop.rs
dst-vtable-align-nonzero.rs
dst-vtable-size-range.rs
enum-bounds-check-derived-idx.rs
enum-bounds-check-issue-13926.rs
enum-bounds-check-issue-82871.rs
enum-bounds-check.rs
enum-debug-clike.rs
enum-debug-niche-2.rs
enum-debug-niche.rs
enum-debug-tagged.rs
enum-discriminant-value.rs
enum-match.rs Put noundef on all scalars that don't allow uninit 2023-01-17 08:14:35 +01:00
export-no-mangle.rs
external-no-mangle-fns.rs
external-no-mangle-statics.rs
fastcall-inreg.rs Put noundef on all scalars that don't allow uninit 2023-01-17 08:14:35 +01:00
fatptr.rs
fewer-names.rs ICE when checking LocalInfo on runtime MIR. 2023-03-14 20:52:42 +01:00
ffi-const.rs
ffi-out-of-bounds-loads.rs
ffi-pure.rs
ffi-returns-twice.rs
float_math.rs
fn-impl-trait-self.rs
foo.s
force-frame-pointers.rs
force-no-unwind-tables.rs
force-unwind-tables.rs
frame-pointer.rs Add more codegen tests 2023-01-17 16:23:22 +01:00
function-arguments-noopt.rs make PointerKind directly reflect pointer types 2023-02-06 11:46:32 +01:00
function-arguments.rs Make dyn* have the same scalar pair ABI as corresponding fat pointer 2023-02-18 19:47:34 +00:00
gdb_debug_script_load.rs
generator-debug-msvc.rs
generator-debug.rs
generic-debug.rs
global_asm_include.rs
global_asm_x2.rs
global_asm.rs
i686-macosx-deployment-target.rs
i686-no-macosx-deployment-target.rs
inherit_overflow.rs inherit_overflow: adapt pattern to also work with v0 mangling 2023-03-15 14:22:26 -04:00
inline-always-works-always.rs
inline-debuginfo.rs
inline-hint.rs
instrument-coverage.rs
instrument-mcount.rs
integer-cmp.rs
integer-overflow.rs
internalize-closures.rs
intrinsic-no-unnamed-attr.rs
iter-repeat-n-trivial-drop.rs Add more codegen tests 2023-01-17 16:23:22 +01:00
layout-size-checks.rs
lifetime_start_end.rs
link_section.rs
link-dead-code.rs
loads.rs Add more codegen tests 2023-01-17 16:23:22 +01:00
local-generics-in-exe-internalized.rs
lto-removes-invokes.rs
mainsubprogram.rs
mainsubprogramstart.rs
match-optimized.rs
match-optimizes-away.rs
match-unoptimized.rs
mem-replace-big-type.rs Split the mem-replace codegen test 2023-03-15 00:57:08 -07:00
mem-replace-direct-memcpy.rs Split the mem-replace codegen test 2023-03-15 00:57:08 -07:00
merge-functions.rs Update the minimum external LLVM to 14 2023-02-10 16:06:25 -08:00
mir_zst_stores.rs
mir-inlined-line-numbers.rs
move-operands.rs Fix codegen tests 2023-02-14 19:21:58 -05:00
naked-functions.rs Add more codegen tests 2023-01-17 16:23:22 +01:00
naked-nocoverage.rs
naked-noinline.rs
no-assumes-on-casts.rs
no-dllimport-w-cross-lang-lto.rs
no-jump-tables.rs
no-plt.rs
noalias-box-off.rs
noalias-box.rs
noalias-flag.rs
noalias-refcell.rs
noalias-rwlockreadguard.rs
noalias-unpin.rs
noreturn-uninhabited.rs
noreturnflag.rs
nounwind.rs
nrvo.rs
optimize-attr-1.rs
option-as-slice.rs Move Option::as_slice to an always-sound implementation 2023-03-11 20:29:26 -08:00
option-nonzero-eq.rs Implement SpecOptionPartialEq for cmp::Ordering 2023-01-18 19:19:28 -08:00
packed.rs
panic-abort-windows.rs
panic-in-drop-abort.rs
panic-unwind-default-uwtable.rs
personality_lifetimes.rs
pgo-counter-bias.rs
pgo-instrumentation.rs
pic-relocation-model.rs Add more codegen tests 2023-01-17 16:23:22 +01:00
pie-relocation-model.rs Add more codegen tests 2023-01-17 16:23:22 +01:00
ptr-read-metadata.rs Improved implementation and comments after code review feedback 2023-03-14 22:24:28 -07:00
README.md
refs.rs Add more codegen tests 2023-01-17 16:23:22 +01:00
repeat-trusted-len.rs
repr-transparent-aggregates-1.rs
repr-transparent-aggregates-2.rs
repr-transparent-aggregates-3.rs
repr-transparent-sysv64.rs
repr-transparent.rs Put noundef on all scalars that don't allow uninit 2023-01-17 08:14:35 +01:00
sanitizer_memtag_attr_check.rs
sanitizer_scs_attr_check.rs
sanitizer-cfi-add-canonical-jump-tables-flag.rs
sanitizer-cfi-emit-type-checks.rs Add more codegen tests 2023-01-17 16:23:22 +01:00
sanitizer-cfi-emit-type-metadata-id-itanium-cxx-abi.rs
sanitizer-cfi-emit-type-metadata-itanium-cxx-abi.rs
sanitizer-kasan-emits-instrumentation.rs Add kernel-address sanitizer support for freestanding targets 2023-02-14 20:54:25 -05:00
sanitizer-kcfi-add-kcfi-flag.rs
sanitizer-kcfi-emit-kcfi-operand-bundle-itanium-cxx-abi.rs Add more codegen tests 2023-01-17 16:23:22 +01:00
sanitizer-memory-track-orgins.rs
sanitizer-no-sanitize-inlining.rs
sanitizer-no-sanitize.rs
sanitizer-recover.rs Add more codegen tests 2023-01-17 16:23:22 +01:00
scalar-pair-bool.rs Put noundef on all scalars that don't allow uninit 2023-01-17 08:14:35 +01:00
set-discriminant-invalid.rs
simd_arith_offset.rs Fix codegen tests 2023-02-14 19:21:58 -05:00
simd-wide-sum.rs simd-wide-sum test: adapt for LLVM 17 codegen change 2023-03-13 15:07:16 +00:00
slice_as_from_ptr_range.rs
slice-as_chunks.rs
slice-indexing.rs Use nuw when calculating slice lengths from Ranges 2023-03-05 15:15:22 -08:00
slice-init.rs
slice-iter-len-eq-zero.rs
slice-position-bounds-check.rs
slice-ref-equality.rs Merge two different equality specialization traits in core 2023-03-01 14:42:06 -08:00
slice-reverse.rs
slice-windows-no-bounds-check.rs
some-abis-do-extend-params-to-32-bits.rs Add more codegen tests 2023-01-17 16:23:22 +01:00
some-global-nonnull.rs
sparc-struct-abi.rs
sse42-implies-crc32.rs Update the minimum external LLVM to 14 2023-02-10 16:06:25 -08:00
stack-probes-call.rs
stack-probes-inline.rs
stack-protector.rs
static-relocation-model-msvc.rs Add more codegen tests 2023-01-17 16:23:22 +01:00
staticlib-external-inline-fns.rs
stores.rs
swap-large-types.rs
swap-simd-types.rs
swap-small-types.rs
target-cpu-on-functions.rs
target-feature-overrides.rs
thread-local.rs Add QNX Neutrino support to libstd 2023-02-28 15:59:47 +01:00
to_vec.rs
transmute-scalar.rs Add CastKind::Transmute to MIR 2023-03-22 15:15:41 -07:00
try_identity.rs
try_question_mark_nop.rs
tune-cpu-on-functions.rs
tuple-layout-opt.rs Add more codegen tests 2023-01-17 16:23:22 +01:00
unchecked_shifts.rs
unchecked-float-casts.rs
uninit-consts.rs Update the minimum external LLVM to 14 2023-02-10 16:06:25 -08:00
union-abi.rs
unpadded-simd.rs
unwind-and-panic-abort.rs
unwind-extern-exports.rs
unwind-extern-imports.rs
used_with_arg.rs
var-names.rs ICE when checking LocalInfo on runtime MIR. 2023-03-14 20:52:42 +01:00
vec-as-ptr.rs Remove the assume(!is_null) from Vec::as_ptr 2023-02-19 14:30:21 -05:00
vec-calloc-llvm14.rs
vec-calloc.rs Auto merge of #106989 - clubby789:is-zero-num, r=scottmcm 2023-01-19 08:04:26 +00:00
vec-in-place.rs Update the minimum external LLVM to 14 2023-02-10 16:06:25 -08:00
vec-iter-collect-len.rs
vec-optimizes-away.rs
vec-shrink-panik.rs adapt tests/codegen/vec-shrink-panik for LLVM 17 2023-03-20 15:33:57 +00:00
vecdeque_no_panic.rs
virtual-function-elimination-32bit.rs
virtual-function-elimination.rs
wasm_casts_trapping.rs
x86_64-macosx-deployment-target.rs
x86_64-no-macosx-deployment-target.rs
zip.rs
zst-offset.rs Add more codegen tests 2023-01-17 16:23:22 +01:00

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