rust/codegen at b14eb0c497eaac65cd67c02270c6f7bd8ecc5b3f - rust

mirror of https://github.com/rust-lang/rust.git synced 2024-11-26 08:44:35 +00:00

History

bors 7aa413d592 Auto merge of #107921 - cjgillot:codegen-overflow-check, r=tmiasko Make codegen choose whether to emit overflow checks ConstProp and DataflowConstProp currently have a specific code path not to propagate constants when they overflow. This is meant to have the correct behaviour when inlining from a crate with overflow checks (like `core`) into a crate compiled without. This PR shifts the behaviour change to the `Assert(Overflow*)` MIR terminators: if the crate is compiled without overflow checks, just skip emitting the assertions. This is already what happens with `OverflowNeg`. This allows ConstProp and DataflowConstProp to transform `CheckedBinaryOp(Add, u8::MAX, 1)` into `const (0, true)`, and let codegen ignore the `true`. The interpreter is modified to conform to this behaviour. Fixes #35310		2023-02-19 18:17:26 +00:00
..
auxiliary
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 more codegen tests	2023-01-17 16:23:22 +01:00
non-terminate
remap_path_prefix
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	Add more codegen tests	2023-01-17 16:23:22 +01:00
align-enum.rs
align-fn.rs
align-struct.rs
alloc-optimisation.rs
array-clone.rs
array-equality.rs
array-map.rs	Allow canonicalizing the `array::map` loop in trusted cases	2023-02-04 16:44:51 -08:00
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-newtype.rs	Put `noundef` on all scalars that don't allow uninit	2023-01-17 08:14:35 +01:00
consts.rs	Update the minimum external LLVM to 14	2023-02-10 16:06:25 -08:00
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	Put `noundef` on all scalars that don't allow uninit	2023-01-17 08:14:35 +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	Fix codegen test.	2023-02-18 21:35:02 +00:00
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
issue-13018.rs
issue-15953.rs
issue-27130.rs
issue-32031.rs	Add more codegen tests	2023-01-17 16:23:22 +01:00
issue-32364.rs
issue-34634.rs
issue-34947-pow-i32.rs
issue-37945.rs
issue-44056-macos-tls-align.rs
issue-45222.rs
issue-45466.rs
issue-45964-bounds-check-slice-pos.rs	replace manual ptr arithmetic with ptr_sub	2023-01-15 17:38:05 +01:00
issue-47278.rs
issue-47442.rs
issue-56267-2.rs
issue-56267.rs
issue-56927.rs
issue-58881.rs	Add more codegen tests	2023-01-17 16:23:22 +01:00
issue-59352.rs
issue-69101-bounds-check.rs
issue-73031.rs
issue-73338-effecient-cmp.rs
issue-73396-bounds-check-after-position.rs
issue-73827-bounds-check-index-in-subexpr.rs
issue-75525-bounds-checks.rs
issue-75546.rs
issue-75659.rs	Support `true` and `false` as boolean flag params	2023-01-18 20:46:36 +01:00
issue-77812.rs
issue-81408-dllimport-thinlto-windows.rs
issue-84268.rs
issue-85872-multiple-reverse.rs
issue-86106.rs
issue-96274.rs
issue-96497-slice-size-nowrap.rs	bump failing assembly & codegen tests from LLVM 14 to LLVM 15	2023-01-17 20:02:01 +01:00
issue-98156-const-arg-temp-lifetime.rs
issue-98294-get-mut-copy-from-slice-opt.rs
issue-103285-ptr-addr-overflow-check.rs
issue-103840.rs
issue-105386-ub-in-debuginfo.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	Change `src/test` to `tests` in source files, fix tidy and tests	2023-01-11 09:32:13 +00:00
match-optimizes-away.rs
match-unoptimized.rs	Change `src/test` to `tests` in source files, fix tidy and tests	2023-01-11 09:32:13 +00:00
mem-replace-direct-memcpy.rs
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-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
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
slice_as_from_ptr_range.rs
slice-as_chunks.rs
slice-init.rs
slice-iter-len-eq-zero.rs
slice-position-bounds-check.rs
slice-ref-equality.rs
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	Change `src/test` to `tests` in source files, fix tidy and tests	2023-01-11 09:32:13 +00:00
thread-local.rs
to_vec.rs
transmute-scalar.rs	Put `noundef` on all scalars that don't allow uninit	2023-01-17 08:14:35 +01:00
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	Put `noundef` on all scalars that don't allow uninit	2023-01-17 08:14:35 +01:00
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
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

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