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bors 00095b3da4 Auto merge of #132527 - DianQK:gvn-stmt-iter, r=oli-obk 
gvn: Invalid dereferences for all non-local mutations

Fixes #132353.

This PR removes the computation value by traversing SSA locals through `for_each_assignment_mut`.

Because the `for_each_assignment_mut` traversal skips statements which have side effects, such as dereference assignments, the computation may be unsound. Instead of `for_each_assignment_mut`, we compute values by traversing in reverse postorder.

Because we compute and use the symbolic representation of values on the fly, I invalidate all old values when encountering a dereference assignment. The current approach does not prevent the optimization of a clone to a copy.

In the future, we may add an alias model, or dominance information for dereference assignments, or SSA form to help GVN.

r? cjgillot

cc `@jieyouxu` #132356
cc `@RalfJung` #133474
2025-04-03 19:17:33 +00:00
..
asm
Use explicit cpu in some asm and codegen tests.
2025-03-19 19:45:46 +01:00
auxiliary
…
avr
tests: use minicore more
2025-02-24 09:26:54 +00:00
bounds-checking
Simplify the GEP instruction for index
2024-12-15 19:01:45 +08:00
cffi
PassWrapper: adapt for llvm/llvm-project@94122d58fc
2025-03-31 15:47:26 -04:00
compiletest-self-test
…
cross-crate-inlining
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
debug-accessibility
Explicitly register MSVC/NONMSVC revisions for some codegen tests
2024-12-19 20:36:51 +08:00
debuginfo-proc-macro
Update tests to use new proc-macro header
2024-11-27 07:18:25 -08:00
dllimports
…
enum
Don't alloca just to look at a discriminant
2025-03-12 00:56:43 -07:00
float
x86-sse2 ABI: use SSE registers for floats and SIMD
2025-02-18 16:11:41 +01:00
hint
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
instrument-coverage
coverage: Adjust a codegen test to ignore the order of covmap/covfun globals
2024-12-11 21:34:48 +11:00
instrument-xray
…
intrinsics
Auto merge of #133984 - DaniPopes:scmp-ucmp, r=scottmcm
2025-03-24 22:53:12 +00:00
issues
Fix formatting (line too long)
2025-03-14 01:45:10 +01:00
lib-optimizations
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
loongarch-abi
tests: use minicore more
2025-02-24 09:26:54 +00:00
macos
tests: use minicore more
2025-02-24 09:26:54 +00:00
meta-filecheck
compiletest: don't register MSVC/NONMSVC FileCheck prefixes
2024-12-19 20:36:51 +08:00
naked-fn
naked functions: on windows emit .endef without the symbol name
2025-03-11 00:27:32 +01:00
non-terminate
…
patchable-function-entry
…
remap_path_prefix
Avoid wrapping constant allocations in packed structs when not necessary
2025-03-28 09:19:57 +00:00
repr
tests: use minicore more
2025-02-24 09:26:54 +00:00
riscv-abi
tests: use minicore more
2025-02-24 09:26:54 +00:00
sanitizer
Rollup merge of #138349 - 1c3t3a:external-weak-cfi, r=rcvalle
2025-03-17 16:34:50 +01:00
simd
use the right feature in codegen tests
2025-02-27 12:23:00 +01:00
simd-intrinsic
remove most simd_ intrinsic declaration in tests
2025-02-27 12:22:59 +01:00
src-hash-algorithm
…
unwind-abis
…
aarch64-softfloat.rs
tests: use minicore more
2025-02-24 09:26:54 +00:00
aarch64-struct-align-128.rs
tests: use minicore more
2025-02-24 09:26:54 +00:00
abi-efiapi.rs
tests: use minicore more
2025-02-24 09:26:54 +00:00
abi-main-signature-16bit-c-int.rs
…
abi-main-signature-32bit-c-int.rs
…
abi-repr-ext.rs
tests: use minicore more
2025-02-24 09:26:54 +00:00
abi-sysv64.rs
tests: use minicore more
2025-02-24 09:26:54 +00:00
abi-win64-zst.rs
tests: use minicore more
2025-02-24 09:26:54 +00:00
abi-x86_64_sysv.rs
…
abi-x86-interrupt.rs
tests: use minicore more
2025-02-24 09:26:54 +00:00
abi-x86-sse.rs
x86-sse2 ABI: use SSE registers for floats and SIMD
2025-02-18 16:11:41 +01:00
addr-of-mutate.rs
LLVM changed the nocapture attribute to captures(none)
2025-01-30 11:22:46 +01:00
adjustments.rs
…
align-byval-alignment-mismatch.rs
use add-core-stubs / minicore for a few more tests
2025-02-16 18:37:50 +01:00
align-byval-vector.rs
use add-core-stubs / minicore for a few more tests
2025-02-16 18:37:50 +01:00
align-byval.rs
use add-core-stubs / minicore for a few more tests
2025-02-16 18:37:50 +01:00
align-enum.rs
…
align-fn.rs
…
align-offset.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
align-struct.rs
…
alloc-optimisation.rs
Remove implicit #[no_mangle] for #[rustc_std_internal_symbol]
2025-03-17 14:08:09 +00:00
amdgpu-addrspacecast.rs
Cast allocas to default address space
2025-02-10 21:38:44 +01:00
array-clone.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
array-cmp.rs
…
array-codegen.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
array-equality.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
array-from_fn.rs
…
array-map.rs
…
array-optimized.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
array-repeat.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
ascii-char.rs
…
assign-desugar-debuginfo.rs
Don't produce debug information for compiler-introduced-vars when desugaring assignments.
2025-03-21 17:34:45 -07:00
async-closure-debug.rs
Stabilize async closures
2024-12-13 00:04:56 +00:00
async-fn-debug-awaitee-field.rs
Explicitly register MSVC/NONMSVC revisions for some codegen tests
2024-12-19 20:36:51 +08:00
async-fn-debug-msvc.rs
…
async-fn-debug.rs
…
atomic-operations.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
atomicptr.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
autodiff.rs
update autodiff flags
2025-02-21 21:51:20 -05:00
autovectorize-f32x4.rs
…
bigint-helpers.rs
Override disjoint_or in the LLVM backend
2025-01-31 22:29:08 -08:00
binary-heap-peek-mut-pop-no-panic.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
binary-search-index-no-bound-check.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
bool-cmp.rs
…
box-default-debug-copies.rs
reduce Box::default stack copies in debug mode
2025-01-26 03:48:27 -05:00
box-uninit-bytes.rs
Remove implicit #[no_mangle] for #[rustc_std_internal_symbol]
2025-03-17 14:08:09 +00:00
bpf-alu32.rs
…
branch-protection-old-llvm.rs
tests: use minicore more
2025-02-24 09:26:54 +00:00
branch-protection.rs
tests: use minicore more
2025-02-24 09:26:54 +00:00
call-llvm-intrinsics.rs
…
call-metadata.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
cast-optimized.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
cast-target-abi.rs
PassWrapper: adapt for llvm/llvm-project@94122d58fc
2025-03-31 15:47:26 -04:00
catch-unwind.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
cdylib-external-inline-fns.rs
…
cf-protection.rs
tests: use minicore more
2025-02-24 09:26:54 +00:00
cfguard-checks.rs
…
cfguard-disabled.rs
…
cfguard-nochecks.rs
…
cfguard-non-msvc.rs
…
char-ascii-branchless.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
checked_ilog.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
checked_math.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
clone_as_copy.rs
Remove unsound-mir-opts for simplify_aggregate_to_copy
2025-04-03 21:59:43 +08:00
clone-shims.rs
…
codemodels.rs
…
coercions.rs
…
cold-call-declare-and-call.rs
…
common_prim_int_ptr.rs
llvm: Tolerate captures in tests
2025-02-14 18:55:50 +00:00
comparison-operators-2-struct.rs
Update some comparison tests now that they pass in LLVM20
2025-02-17 16:36:14 -08:00
comparison-operators-2-tuple.rs
Lower BinOp::Cmp to llvm.{s,u}cmp.* intrinsics
2025-03-06 22:29:05 +08:00
comparison-operators-newtype.rs
…
const_scalar_pair.rs
…
const-array.rs
Avoid wrapping constant allocations in packed structs when not necessary
2025-03-28 09:19:57 +00:00
const-vector.rs
…
constant-branch.rs
…
consts.rs
…
coroutine-debug-msvc.rs
…
coroutine-debug.rs
…
dealloc-no-unwind.rs
Remove implicit #[no_mangle] for #[rustc_std_internal_symbol]
2025-03-17 14:08:09 +00:00
debug-alignment.rs
…
debug-column-msvc.rs
…
debug-column.rs
Enable more tests on Windows
2025-02-03 10:39:32 -05:00
debug-compile-unit-path.rs
…
debug-fndef-size.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
debug-limited.rs
…
debug-line-directives-only.rs
…
debug-line-tables-only.rs
…
debug-linkage-name.rs
…
debug-vtable.rs
Avoid wrapping constant allocations in packed structs when not necessary
2025-03-28 09:19:57 +00:00
debuginfo-constant-locals.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
debuginfo-generic-closure-env-names.rs
Explicitly register MSVC/NONMSVC revisions for some codegen tests
2024-12-19 20:36:51 +08:00
debuginfo-inline-callsite-location.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
deduced-param-attrs.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
default-requires-uwtable.rs
tests: use minicore more
2025-02-24 09:26:54 +00:00
default-visibility.rs
…
direct-access-external-data.rs
…
dont_codegen_private_const_fn_only_used_in_const_eval.rs
…
dont-shuffle-bswaps.rs
tests: simplify dont-shuffle-bswaps test
2025-02-11 13:41:26 -08:00
drop-in-place-noalias.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
drop.rs
…
dst-offset.rs
…
dst-vtable-align-nonzero.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
dst-vtable-size-range.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
ehcontguard_disabled.rs
…
ehcontguard_enabled.rs
…
emscripten-catch-unwind-js-eh.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
emscripten-catch-unwind-wasm-eh.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
enable-lto-unit-splitting.rs
…
error-provide.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
export-no-mangle.rs
…
external-no-mangle-fns.rs
…
external-no-mangle-statics.rs
Avoid wrapping constant allocations in packed structs when not necessary
2025-03-28 09:19:57 +00:00
f128-wasm32-callconv.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
fastcall-inreg.rs
tests: use minicore more
2025-02-24 09:26:54 +00:00
fatptr.rs
…
fewer-names.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
fixed-x18.rs
tests: use minicore more
2025-02-24 09:26:54 +00:00
float_math.rs
…
fn-impl-trait-self.rs
…
force-frame-pointers.rs
…
force-no-unwind-tables.rs
Enable more tests on Windows
2025-02-03 10:39:32 -05:00
force-unwind-tables.rs
…
frame-pointer.rs
tests: use minicore more
2025-02-24 09:26:54 +00:00
function-arguments-noopt.rs
…
function-arguments.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
function-return.rs
tests: use minicore more
2025-02-24 09:26:54 +00:00
gdb_debug_script_load.rs
remove support for the #[start] attribute
2025-01-21 06:59:15 -07:00
generic-debug.rs
…
gep-index.rs
Also use gep inbounds nuw for index projections
2025-02-19 15:15:29 +01:00
gpu-kernel-abi.rs
tests: use minicore more
2025-02-24 09:26:54 +00:00
i128-wasm32-callconv.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
i128-x86-align.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
i128-x86-callconv.rs
x86_win64 ABI: do not use xmm0 with softfloat ABI
2025-02-19 08:41:19 +01:00
infallible-unwrap-in-opt-z.rs
…
inherit_overflow.rs
…
inline-always-works-always.rs
…
inline-debuginfo.rs
…
inline-function-args-debug-info.rs
…
inline-hint.rs
…
instrument-mcount.rs
…
integer-cmp.rs
Lower BinOp::Cmp to llvm.{s,u}cmp.* intrinsics
2025-03-06 22:29:05 +08:00
integer-overflow.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
internalize-closures.rs
…
intrinsic-no-unnamed-attr.rs
…
is_val_statically_known.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
issue-97217.rs
…
iter-repeat-n-trivial-drop.rs
Remove implicit #[no_mangle] for #[rustc_std_internal_symbol]
2025-03-17 14:08:09 +00:00
layout-size-checks.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
lifetime_start_end.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
link_section.rs
Avoid wrapping constant allocations in packed structs when not necessary
2025-03-28 09:19:57 +00:00
link-dead-code.rs
…
llvm_module_flags.rs
…
llvm-ident.rs
…
loads.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
local-generics-in-exe-internalized.rs
…
lto-removes-invokes.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
mainsubprogram.rs
…
match-optimized.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
match-optimizes-away.rs
Don't alloca just to look at a discriminant
2025-03-12 00:56:43 -07:00
match-unoptimized.rs
…
maybeuninit-rvo.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
mem-replace-big-type.rs
We don't need NonNull::as_ptr debuginfo
2024-12-10 01:29:43 -08:00
mem-replace-simple-type.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
merge-functions.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
method-declaration.rs
…
min-function-alignment.rs
add -Zmin-function-alignment
2025-01-10 22:53:54 +01:00
mir_zst_stores.rs
…
mir-aggregate-no-alloca.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
mir-inlined-line-numbers.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
move-before-nocapture-ref-arg.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
move-operands.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
naked-asan.rs
fix the naked-asan test
2024-12-10 21:41:05 +01:00
no_builtins-at-crate.rs
…
no-alloca-inside-if-false.rs
…
no-assumes-on-casts.rs
…
no-dllimport-w-cross-lang-lto.rs
…
no-jump-tables.rs
tests: use minicore more
2025-02-24 09:26:54 +00:00
no-plt.rs
…
no-redundant-item-monomorphization.rs
…
noalias-box-off.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
noalias-box.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
noalias-flag.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
noalias-freeze.rs
…
noalias-refcell.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
noalias-rwlockreadguard.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
noalias-unpin.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
noreturn-uninhabited.rs
…
noreturnflag.rs
…
nounwind.rs
…
nrvo.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
optimize-attr-1.rs
Implement optimize(none) attribute
2025-01-23 17:19:53 +00:00
option-as-slice.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
option-niche-eq.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
overaligned-constant.rs
The embedded bitcode should always be prepared for LTO/ThinLTO
2025-02-23 21:23:36 +08:00
packed.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
panic-abort-windows.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
panic-in-drop-abort.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
panic-unwind-default-uwtable.rs
…
pattern_type_symbols.rs
Hide the end of ranges in pretty printing if it's also the maximum of the type
2025-03-06 10:50:23 +00:00
personality_lifetimes.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
pgo-counter-bias.rs
…
pgo-instrumentation.rs
…
pic-relocation-model.rs
…
pie-relocation-model.rs
…
placement-new.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
powerpc64le-struct-align-128.rs
tests: use minicore more
2025-02-24 09:26:54 +00:00
precondition-checks.rs
…
ptr-arithmetic.rs
Emit getelementptr inbounds nuw for pointer::add()
2025-02-19 11:32:32 +01:00
ptr-read-metadata.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
range_to_inclusive.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
range-attribute.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
range-loop.rs
Allow more top-down inlining for single-BB callees
2025-03-12 22:39:43 -07:00
README.md
…
refs.rs
…
reg-struct-return.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
regparm-inreg.rs
tests: use minicore more
2025-02-24 09:26:54 +00:00
repeat-trusted-len.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
riscv-target-abi.rs
tests: use minicore more
2025-02-24 09:26:54 +00:00
rust-abi-arch-specific-adjustment.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
s390x-simd.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
scalar-pair-bool.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
set-discriminant-invalid.rs
…
skip-mono-inside-if-false.rs
…
slice_as_from_ptr_range.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
slice-as_chunks.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
slice-indexing.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
slice-init.rs
Add a test
2025-03-02 18:53:49 +00:00
slice-is-ascii.rs
Use explicit cpu in some asm and codegen tests.
2025-03-19 19:45:46 +01:00
slice-iter-fold.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
slice-iter-len-eq-zero.rs
transmute should also assume non-null pointers
2025-02-12 23:01:27 -08:00
slice-iter-nonnull.rs
Simplify slice::Iter::next enough that it inlines
2025-02-14 22:24:27 -08:00
slice-last-elements-optimization.rs
Add tests for LLVM 20 slice bounds check optimization
2025-03-31 22:38:53 +09:00
slice-pointer-nonnull-unwrap.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
slice-position-bounds-check.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
slice-ref-equality.rs
Set both nuw and nsw in slice size calculation
2025-02-13 21:26:48 -08:00
slice-reverse.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
slice-split-at.rs
slice: Remove some uses of unsafe in first/last chunk methods
2025-03-30 12:45:04 -04:00
slice-windows-no-bounds-check.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
some-abis-do-extend-params-to-32-bits.rs
tests: use minicore more
2025-02-24 09:26:54 +00:00
some-global-nonnull.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
sparc-struct-abi.rs
tests: use minicore more
2025-02-24 09:26:54 +00:00
split-lto-unit.rs
…
sroa-fragment-debuginfo.rs
…
sse42-implies-crc32.rs
…
stack-probes-inline.rs
tests: use minicore more
2025-02-24 09:26:54 +00:00
stack-protector.rs
…
static-relocation-model-msvc.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
staticlib-external-inline-fns.rs
…
step_by-overflow-checks.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
stores.rs
…
swap-large-types.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
swap-small-types.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
target-cpu-on-functions.rs
…
target-feature-inline-closure.rs
Fix target-feature inline test to be less flaky
2025-03-06 19:56:21 +00:00
target-feature-overrides.rs
tests: use minicore more
2025-02-24 09:26:54 +00:00
terminating-catchpad.rs
Generate correct terminate block under Wasm EH
2025-02-06 18:21:13 +03:00
thread-local.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
tied-features-strength.rs
tests: use minicore more
2025-02-24 09:26:54 +00:00
to_vec.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
trailing_zeros.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
transmute-optimized.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
transmute-scalar.rs
Emit trunc nuw for unchecked shifts and to_immediate_scalar
2025-02-19 11:36:52 -08:00
try_question_mark_nop.rs
Remove unsound-mir-opts for simplify_aggregate_to_copy
2025-04-03 21:59:43 +08:00
tune-cpu-on-functions.rs
…
tuple-layout-opt.rs
…
ub-checks.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
unchecked_shifts.rs
PR feedback
2025-02-19 11:36:52 -08:00
unchecked-float-casts.rs
…
uninhabited-transparent-return-abi.rs
tests: fix up new test for nocapture -> capture(none) change
2025-02-25 17:46:05 -05:00
uninit-consts.rs
Avoid wrapping constant allocations in packed structs when not necessary
2025-03-28 09:19:57 +00:00
uninit-repeat-in-aggregate.rs
Lower to a memset(undef) when Rvalue::Repeat repeats uninit
2025-03-19 23:57:49 -04:00
union-abi.rs
Emit trunc nuw for unchecked shifts and to_immediate_scalar
2025-02-19 11:36:52 -08:00
unwind-and-panic-abort.rs
…
unwind-extern-exports.rs
…
unwind-extern-imports.rs
…
unwind-landingpad-cold.rs
…
unwind-landingpad-inline.rs
…
used_with_arg.rs
…
var-names.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
vec_pop_push_noop.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
vec-as-ptr.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
vec-calloc.rs
Remove implicit #[no_mangle] for #[rustc_std_internal_symbol]
2025-03-17 14:08:09 +00:00
vec-in-place.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
vec-iter-collect-len.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
vec-iter.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
vec-len-invariant.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
vec-optimizes-away.rs
Remove implicit #[no_mangle] for #[rustc_std_internal_symbol]
2025-03-17 14:08:09 +00:00
vec-reserve-extend.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
vec-shrink-panik.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
vec-with-capacity.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
vecdeque_no_panic.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
vecdeque_pop_push.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
vecdeque-drain.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
vecdeque-nonempty-get-no-panic.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
virtual-call-attrs-issue-137646.rs
Don't infer unwinding of virtual calls based on the function attributes
2025-02-27 12:58:18 +08:00
virtual-function-elimination-32bit.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
virtual-function-elimination.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
vtable-loads.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
vtable-upcast.rs
remove feature(trait_upcasting) from tests and bless them
2025-02-06 23:44:23 +01:00
wasm_casts_trapping.rs
…
wasm_exceptions.rs
Fix tests/codegen/wasm_exceptions
2025-01-28 19:10:26 +03:00
zip.rs
tests/codegen: use -Copt-level=3 instead of -O
2025-02-11 13:41:35 -08:00
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