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bors 7a17f577b3 Auto merge of #112157 - erikdesjardins:align, r=nikic 
Resurrect: rustc_target: Add alignment to indirectly-passed by-value types, correcting the alignment of byval on x86 in the process.

Same as #111551, which I [accidentally closed](https://github.com/rust-lang/rust/pull/111551#issuecomment-1571222612) :/

---

This resurrects PR #103830, which has sat idle for a while.

Beyond #103830, this also:
- fixes byval alignment for types containing vectors on Darwin (see `tests/codegen/align-byval-vector.rs`)
- fixes byval alignment for overaligned types on x86 Windows (see `tests/codegen/align-byval.rs`)
- fixes ABI for types with 128bit requested alignment on ARM64 Linux (see `tests/codegen/aarch64-struct-align-128.rs`)

r? `@nikic`

---

`@pcwalton's` original PR description is reproduced below:

Commit 88e4d2c from five years ago removed
support for alignment on indirectly-passed arguments because of problems with
the `i686-pc-windows-msvc` target. Unfortunately, the `memcpy` optimizations I
recently added to LLVM 16 depend on this to forward `memcpy`s. This commit
attempts to fix the problems with `byval` parameters on that target and now
correctly adds the `align` attribute.

The problem is summarized in [this comment] by `@eddyb.` Briefly, 32-bit x86 has
special alignment rules for `byval` parameters: for the most part, their
alignment is forced to 4. This is not well-documented anywhere but in the Clang
source. I looked at the logic in Clang `TargetInfo.cpp` and tried to replicate
it here. The relevant methods in that file are
`X86_32ABIInfo::getIndirectResult()` and
`X86_32ABIInfo::getTypeStackAlignInBytes()`. The `align` parameter attribute
for `byval` parameters in LLVM must match the platform ABI, or miscompilations
will occur. Note that this doesn't use the approach suggested by eddyb, because
I felt it was overkill to store the alignment in `on_stack` when special
handling is really only needed for 32-bit x86.

As a side effect, this should fix #80127, because it will make the `align`
parameter attribute for `byval` parameters match the platform ABI on LLVM
x86-64.

[this comment]: #80822 (comment)
2023-07-15 15:39:53 +00:00
..
auxiliary
Also move the auxiliary file
2023-03-20 10:25:29 +00:00
avr
Always name the return place.
2023-07-08 15:38:40 +02:00
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
Always name the return place.
2023-07-08 15:38:40 +02:00
issues
cg_llvm: use index-based loop in write_operand_repeatedly
2023-06-11 00:04:53 -04:00
loongarch-abi
tests: Add tests for LoongArch64
2023-04-30 00:06:26 +08:00
non-terminate
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
remap_path_prefix
Give the cross-crate generic some work to do
2023-04-07 15:46:45 -04:00
riscv-abi
Always name the return place.
2023-07-08 15:38:40 +02:00
simd-intrinsic
Always name the return place.
2023-07-08 15:38:40 +02:00
src-hash-algorithm
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
unwind-abis
codegen: add needs-unwind to tests that require it
2023-05-23 16:54:35 +02:00
aarch64-struct-align-128.rs
aarch64-linux: properly handle 128bit aligned aggregates
2023-07-10 19:19:40 -04:00
abi-efiapi.rs
Stabilize abi_efiapi feature
2023-01-11 20:42:13 -05:00
abi-main-signature-16bit-c-int.rs
tests: Add tests for LoongArch64
2023-04-30 00:06:26 +08:00
abi-main-signature-32bit-c-int.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
abi-repr-ext.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
abi-sysv64.rs
Add more codegen tests
2023-01-17 16:23:22 +01:00
abi-x86_64_sysv.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
abi-x86-interrupt.rs
Add more codegen tests
2023-01-17 16:23:22 +01:00
addr-of-mutate.rs
add align attr to addr-of-mutate test
2023-07-10 19:19:36 -04:00
adjustments.rs
Use poison instead of undef
2023-03-16 15:07:04 +01:00
align-byval-vector.rs
implement vector-containing aggregate alignment for x86 darwin
2023-07-10 19:19:36 -04:00
align-byval.rs
i686-windows: make requested alignment > 4 special case apply transitively
2023-07-14 17:48:13 -04:00
align-enum.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
align-fn.rs
Allow all associated functions and add test
2023-04-16 06:31:08 +00:00
align-offset.rs
assume the runtime range of align_offset
2023-05-05 04:22:51 -07:00
align-struct.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
alloc-optimisation.rs
Prevent insta-stable no alloc shim support
2023-05-11 14:35:09 +00:00
array-clone.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
array-codegen.rs
Always name the return place.
2023-07-08 15:38:40 +02:00
array-equality.rs
Merge two different equality specialization traits in core
2023-03-01 14:42:06 -08:00
array-map.rs
update array-map test for removed alloca
2023-07-10 19:19:35 -04:00
ascii-char.rs
Add the basic ascii::Char type
2023-05-03 22:09:33 -07:00
asm-clobber_abi.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
asm-clobbers.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
asm-may_unwind.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
asm-multiple-options.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
asm-options.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
asm-powerpc-clobbers.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
asm-sanitize-llvm.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
asm-target-clobbers.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
async-fn-debug-awaitee-field.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
async-fn-debug-msvc.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
async-fn-debug.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
atomic-operations.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
autovectorize-f32x4.rs
Test from_fn autovectorizes
2023-05-30 20:45:40 -07:00
binary-search-index-no-bound-check.rs
Stop checking for the absense of something that doesn't exist
2023-05-12 21:59:26 -07:00
bool-cmp.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
box-maybe-uninit-llvm14.rs
codegen: allow the dso_local attribute
2023-05-23 16:54:33 +02:00
box-maybe-uninit.rs
codegen: do not require the uwtables attribute
2023-05-23 16:54:34 +02:00
bpf-alu32.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
branch-protection.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
c-variadic-copy.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
c-variadic-opt.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
c-variadic.rs
Add more codegen tests
2023-01-17 16:23:22 +01:00
call-llvm-intrinsics.rs
tests: Add tests for LoongArch64
2023-04-30 00:06:26 +08:00
call-metadata.rs
codegen: allow extra attributes to functions when panic=abort
2023-05-23 16:54:30 +02:00
catch-unwind.rs
tests: Add tests for LoongArch64
2023-04-30 00:06:26 +08:00
cdylib-external-inline-fns.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
cf-protection.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
cfguard-checks.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
cfguard-disabled.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
cfguard-nochecks.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
cfguard-non-msvc.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
codemodels.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
coercions.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
cold-call-declare-and-call.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
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
const_scalar_pair.rs
Explain the reason for why a test exists
2023-05-31 14:07:16 +00:00
consts.rs
Always name the return place.
2023-07-08 15:38:40 +02:00
dealloc-no-unwind.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
debug-alignment.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
debug-column-msvc.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
debug-column.rs
codegen: allow extra attributes to functions when panic=abort
2023-05-23 16:54:30 +02:00
debug-compile-unit-path.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
debug-limited.rs
More in-depth documentation for the new debuginfo options
2023-03-31 07:28:39 -04:00
debug-line-directives-only.rs
More in-depth documentation for the new debuginfo options
2023-03-31 07:28:39 -04:00
debug-line-tables-only.rs
More in-depth documentation for the new debuginfo options
2023-03-31 07:28:39 -04:00
debug-linkage-name.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
debug-vtable.rs
Fix test
2023-05-11 14:35:10 +00:00
debuginfo-constant-locals.rs
Turn on ConstDebugInfo pass.
2023-04-22 23:41:48 +02:00
debuginfo-generic-closure-env-names.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
deduced-param-attrs.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
default-requires-uwtable.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
drop-in-place-noalias.rs
drop-in-place-noalias test: needs -O to ensure attributes are added on nopt builders
2023-05-22 20:20:45 -04:00
drop.rs
codegen: add needs-unwind to tests that require it
2023-05-23 16:54:35 +02:00
dst-vtable-align-nonzero.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
dst-vtable-size-range.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
enable-lto-unit-splitting.rs
Add cross-language LLVM CFI support to the Rust compiler
2023-05-03 22:41:29 +00:00
enum-bounds-check-derived-idx.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
enum-bounds-check-issue-13926.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
enum-bounds-check-issue-82871.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
enum-bounds-check.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
enum-debug-clike.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
enum-debug-niche-2.rs
Fix codegen tests
2023-06-10 08:31:06 +00:00
enum-debug-niche.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
enum-debug-tagged.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
enum-discriminant-value.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
enum-match.rs
Always name the return place.
2023-07-08 15:38:40 +02:00
enum-u128.rs
Add test
2023-06-10 16:58:51 +00:00
export-no-mangle.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
external-no-mangle-fns.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
external-no-mangle-statics.rs
codegen: allow the dso_local attribute
2023-05-23 16:54:33 +02:00
fastcall-inreg.rs
Put noundef on all scalars that don't allow uninit
2023-01-17 08:14:35 +01:00
fatptr.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
fewer-names.rs
Always name the return place.
2023-07-08 15:38:40 +02:00
ffi-const.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
ffi-out-of-bounds-loads.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
ffi-pure.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
ffi-returns-twice.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
float_math.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
fn-impl-trait-self.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
foo.s
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
force-frame-pointers.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
force-no-unwind-tables.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
force-unwind-tables.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
frame-pointer.rs
Add more codegen tests
2023-01-17 16:23:22 +01:00
function-arguments-noopt.rs
rustc_target: Add alignment to indirectly-passed by-value types, correcting the
2023-07-10 19:19:30 -04:00
function-arguments.rs
rustc_target: Add alignment to indirectly-passed by-value types, correcting the
2023-07-10 19:19:30 -04:00
gdb_debug_script_load.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
generator-debug-msvc.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
generator-debug.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
generic-debug.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
global_asm_include.rs
tests: Add tests for LoongArch64
2023-04-30 00:06:26 +08:00
global_asm_x2.rs
tests: Add tests for LoongArch64
2023-04-30 00:06:26 +08:00
global_asm.rs
tests: Add tests for LoongArch64
2023-04-30 00:06:26 +08:00
i686-macosx-deployment-target.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
i686-no-macosx-deployment-target.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
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
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
inline-debuginfo.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
inline-function-args-debug-info.rs
Preserve argument indexes when inlining MIR
2023-04-11 11:07:48 +10:00
inline-hint.rs
Permit MIR inlining without #[inline]
2023-04-07 15:46:43 -04:00
instrument-coverage.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
instrument-mcount.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
integer-cmp.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
integer-overflow.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
internalize-closures.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
intrinsic-no-unnamed-attr.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
iter-repeat-n-trivial-drop.rs
Bless codegen test.
2023-07-14 12:37:29 +00:00
layout-size-checks.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
lifetime_start_end.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
link_section.rs
codegen: allow the dso_local attribute
2023-05-23 16:54:33 +02:00
link-dead-code.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
loads.rs
Add more codegen tests
2023-01-17 16:23:22 +01:00
local-generics-in-exe-internalized.rs
Permit MIR inlining without #[inline]
2023-04-07 15:46:43 -04:00
lto-removes-invokes.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
mainsubprogram.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
mainsubprogramstart.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
match-optimized.rs
Always name the return place.
2023-07-08 15:38:40 +02:00
match-optimizes-away.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
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-big-type.rs
Always name the return place.
2023-07-08 15:38:40 +02:00
mem-replace-simple-type.rs
Always name the return place.
2023-07-08 15:38:40 +02:00
merge-functions.rs
Update the minimum external LLVM to 14
2023-02-10 16:06:25 -08:00
mir_zst_stores.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
mir-inlined-line-numbers.rs
codegen: allow extra attributes to functions when panic=abort
2023-05-23 16:54:30 +02:00
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
update codegent test to be independent of panic strategy
2023-06-14 12:52:02 +02:00
naked-noinline.rs
codegen: allow the dso_local attribute
2023-05-23 16:54:33 +02:00
no-assumes-on-casts.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
no-dllimport-w-cross-lang-lto.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
no-jump-tables.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
no-plt.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
noalias-box-off.rs
make noalias-box-off filecheck more precise
2023-05-20 19:41:28 -04:00
noalias-box.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
noalias-flag.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
noalias-refcell.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
noalias-rwlockreadguard.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
noalias-unpin.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
noreturn-uninhabited.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
noreturnflag.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
nounwind.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
nrvo.rs
Disable nrvo mir opt
2023-05-08 03:55:41 -07:00
optimize-attr-1.rs
typos
2023-04-17 09:16:07 +02:00
option-as-slice.rs
ci: add a runner for vanilla LLVM 16
2023-04-16 11:50:20 -07:00
option-nonzero-eq.rs
Also assume wrap-around discriminants in as MIR building
2023-05-18 10:28:36 -07:00
packed.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
panic-abort-windows.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
panic-in-drop-abort.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
panic-unwind-default-uwtable.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
personality_lifetimes.rs
codegen: add needs-unwind to tests that require it
2023-05-23 16:54:35 +02:00
pgo-counter-bias.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
pgo-instrumentation.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
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
codegen: allow the dso_local attribute
2023-05-23 16:54:33 +02:00
README.md
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
refs.rs
Add more codegen tests
2023-01-17 16:23:22 +01:00
repeat-trusted-len.rs
Always name the return place.
2023-07-08 15:38:40 +02:00
repr-transparent-aggregates-1.rs
test-various: run codegen and assembly tests
2023-07-02 02:22:22 +02:00
repr-transparent-aggregates-2.rs
tests: Add tests for LoongArch64
2023-04-30 00:06:26 +08:00
repr-transparent-aggregates-3.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
repr-transparent-sysv64.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
repr-transparent.rs
tests: Add tests for LoongArch64
2023-04-30 00:06:26 +08:00
sanitizer_memtag_attr_check.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
sanitizer_scs_attr_check.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
sanitizer-cfi-add-canonical-jump-tables-flag.rs
Add cross-language LLVM CFI support to the Rust compiler
2023-05-03 22:41:29 +00:00
sanitizer-cfi-add-enable-split-lto-unit-flag.rs
Add cross-language LLVM CFI support to the Rust compiler
2023-05-03 22:41:29 +00:00
sanitizer-cfi-emit-type-checks-attr-no-sanitize.rs
Add cross-language LLVM CFI support to the Rust compiler
2023-05-03 22:41:29 +00:00
sanitizer-cfi-emit-type-checks.rs
Add cross-language LLVM CFI support to the Rust compiler
2023-05-03 22:41:29 +00:00
sanitizer-cfi-emit-type-metadata-attr-cfi-encoding.rs
Add cross-language LLVM CFI support to the Rust compiler
2023-05-03 22:41:29 +00:00
sanitizer-cfi-emit-type-metadata-id-itanium-cxx-abi.rs
Fix a codegen test
2023-06-22 15:36:46 +00:00
sanitizer-cfi-emit-type-metadata-itanium-cxx-abi-generalized.rs
Add cross-language LLVM CFI support to the Rust compiler
2023-05-03 22:41:29 +00:00
sanitizer-cfi-emit-type-metadata-itanium-cxx-abi-normalized-generalized.rs
Add cross-language LLVM CFI support to the Rust compiler
2023-05-03 22:41:29 +00:00
sanitizer-cfi-emit-type-metadata-itanium-cxx-abi-normalized.rs
Add cross-language LLVM CFI support to the Rust compiler
2023-05-03 22:41:29 +00:00
sanitizer-cfi-emit-type-metadata-itanium-cxx-abi.rs
Add cross-language LLVM CFI support to the Rust compiler
2023-05-03 22:41:29 +00:00
sanitizer-cfi-emit-type-metadata-trait-objects.rs
CFI: Fix encode_region: unexpected ReEarlyBound(0, 'a)
2023-05-23 16:44:03 +00:00
sanitizer-cfi-generalize-pointers.rs
Add cross-language LLVM CFI support to the Rust compiler
2023-05-03 22:41:29 +00:00
sanitizer-cfi-normalize-integers.rs
Add cross-language LLVM CFI support to the Rust compiler
2023-05-03 22:41:29 +00:00
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
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
sanitizer-kcfi-emit-kcfi-operand-bundle-attr-no-sanitize.rs
Add cross-language LLVM CFI support to the Rust compiler
2023-05-03 22:41:29 +00:00
sanitizer-kcfi-emit-kcfi-operand-bundle-itanium-cxx-abi-generalized.rs
Add cross-language LLVM CFI support to the Rust compiler
2023-05-03 22:41:29 +00:00
sanitizer-kcfi-emit-kcfi-operand-bundle-itanium-cxx-abi-normalized-generalized.rs
Add cross-language LLVM CFI support to the Rust compiler
2023-05-03 22:41:29 +00:00
sanitizer-kcfi-emit-kcfi-operand-bundle-itanium-cxx-abi-normalized.rs
Add cross-language LLVM CFI support to the Rust compiler
2023-05-03 22:41:29 +00:00
sanitizer-kcfi-emit-kcfi-operand-bundle-itanium-cxx-abi.rs
Add cross-language LLVM CFI support to the Rust compiler
2023-05-03 22:41:29 +00:00
sanitizer-kcfi-emit-kcfi-operand-bundle.rs
Add cross-language LLVM CFI support to the Rust compiler
2023-05-03 22:41:29 +00:00
sanitizer-kcfi-emit-type-metadata-trait-objects.rs
CFI: Fix encode_region: unexpected ReEarlyBound(0, 'a)
2023-05-23 16:44:03 +00:00
sanitizer-memory-track-orgins.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
sanitizer-no-sanitize-inlining.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
sanitizer-no-sanitize.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
sanitizer-recover.rs
Add more codegen tests
2023-01-17 16:23:22 +01:00
sanitizer-safestack-attr-check.rs
Add SafeStack support to rustc
2023-05-26 15:18:54 -04:00
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
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
simd_arith_offset.rs
Always name the return place.
2023-07-08 15:38:40 +02:00
simd-wide-sum.rs
Reenable all cases of simd-wide-sum
2023-07-11 20:21:32 -07:00
slice_as_from_ptr_range.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
slice-as_chunks.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
slice-indexing.rs
Use nuw when calculating slice lengths from Ranges
2023-03-05 15:15:22 -08:00
slice-init.rs
Fortify codegen test.
2023-07-10 16:01:18 +00:00
slice-iter-fold.rs
add codegen test for slice::Iter::fold
2023-06-12 23:47:08 +02:00
slice-iter-len-eq-zero.rs
Always name the return place.
2023-07-08 15:38:40 +02:00
slice-iter-nonnull.rs
Remove useless assumes from slice::iter(_mut)
2023-05-12 17:34:55 -07:00
slice-position-bounds-check.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
slice-ref-equality.rs
Perform reference propagation earlier.
2023-07-10 16:01:18 +00:00
slice-reverse.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
slice-windows-no-bounds-check.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
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
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
sparc-struct-abi.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
split-lto-unit.rs
Add cross-language LLVM CFI support to the Rust compiler
2023-05-03 22:41:29 +00:00
sse42-implies-crc32.rs
Update the minimum external LLVM to 14
2023-02-10 16:06:25 -08:00
stack-probes-call.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
stack-probes-inline.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
stack-protector.rs
tests: be even more permissive on attributes in one test
2023-06-23 09:48:00 -04:00
static-relocation-model-msvc.rs
Add more codegen tests
2023-01-17 16:23:22 +01:00
staticlib-external-inline-fns.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
stores.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
swap-large-types.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
swap-simd-types.rs
Use load-store instead of memcpy for short integer arrays
2023-06-04 00:51:49 -07:00
swap-small-types.rs
Use load-store instead of memcpy for short integer arrays
2023-06-04 00:51:49 -07:00
target-cpu-on-functions.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
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
tests: adapt for LLVM change 5b386b864c7619897c51a1da97d78f1cf6f3eff6
2023-04-17 10:53:18 -04:00
tied-features-strength.rs
Create a structure to define the features from to_llvm_features.
2023-05-22 14:46:40 +01:00
to_vec.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
transmute-optimized.rs
Add transmute optimization tests and some extra comments
2023-04-19 23:17:35 -07:00
transmute-scalar.rs
Always name the return place.
2023-07-08 15:38:40 +02:00
try_identity.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
try_question_mark_nop.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
tune-cpu-on-functions.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
tuple-layout-opt.rs
codegen: allow the dso_local attribute
2023-05-23 16:54:33 +02:00
unchecked_shifts.rs
[libs] Simplify unchecked_{shl,shr}
2023-06-16 16:03:19 -07:00
unchecked-float-casts.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
uninit-consts.rs
Always name the return place.
2023-07-08 15:38:40 +02:00
union-abi.rs
Always name the return place.
2023-07-08 15:38:40 +02:00
unpadded-simd.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
unwind-and-panic-abort.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
unwind-extern-exports.rs
codegen: add needs-unwind to tests that require it
2023-05-23 16:54:35 +02:00
unwind-extern-imports.rs
codegen: add needs-unwind to tests that require it
2023-05-23 16:54:35 +02:00
used_with_arg.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
var-names.rs
Always name the return place.
2023-07-08 15:38:40 +02:00
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
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
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
llvm 16 finally reconizes some additional vec in-place conversions as noops
2023-04-03 15:29:46 +02:00
vec-iter-collect-len.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
vec-optimizes-away.rs
Prevent insta-stable no alloc shim support
2023-05-11 14:35:09 +00:00
vec-shrink-panik.rs
use indexed loop instead of ptr bumping
2023-06-14 22:22:41 +02:00
vecdeque_no_panic.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
virtual-function-elimination-32bit.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
virtual-function-elimination.rs
Fix a codegen test with some hard-coded hashes
2023-04-05 15:59:29 +00:00
wasm_casts_trapping.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
wasm_exceptions.rs
add codegen-test: wasm-exceptions
2023-07-01 20:24:15 +02:00
x86_64-macosx-deployment-target.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
x86_64-no-macosx-deployment-target.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
zip.rs
Move /src/test to /tests
2023-01-11 09:32:08 +00:00
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