rust/tests/mir-opt
2024-05-17 18:33:37 -03:00
..
building Auto merge of #123332 - Nadrieril:testkind-never, r=matthewjasper 2024-05-07 15:14:20 +00:00
const_prop Update mir-opt tests, add proper regression test 2024-04-28 21:10:09 +01:00
copy-prop Auto merge of #123602 - cjgillot:gvn-borrowed, r=oli-obk 2024-05-03 21:50:13 +00:00
coverage coverage: Add a mir-opt test for branch coverage of match arms 2024-04-22 21:55:33 +10:00
dataflow-const-prop Update mir-opt tests, add proper regression test 2024-04-28 21:10:09 +01:00
dead-store-elimination mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
dest-prop mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
inline Avoid a cast in ptr::slice_from_raw_parts(_mut) 2024-05-06 01:53:54 -07:00
instsimplify Rollup merge of #124230 - reitermarkus:generic-nonzero-stable, r=dtolnay 2024-04-22 20:26:00 +02:00
issues At debuginfo=0, don't inline debuginfo when inlining 2024-04-18 09:35:35 -07:00
nll
pre-codegen Avoid a cast in ptr::slice_from_raw_parts(_mut) 2024-05-06 01:53:54 -07:00
sroa mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
unnamed-fields Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
address_of.address_of_reborrow.SimplifyCfg-initial.after.mir bless mir-opt tests 2024-04-08 15:08:06 +00:00
address_of.borrow_and_cast.SimplifyCfg-initial.after.mir
address_of.rs
array_index_is_temporary.main.SimplifyCfg-pre-optimizations.after.panic-abort.mir Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
array_index_is_temporary.main.SimplifyCfg-pre-optimizations.after.panic-unwind.mir Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
array_index_is_temporary.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
asm_unwind_panic_abort.main.AbortUnwindingCalls.after.mir Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
asm_unwind_panic_abort.rs
async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}.coroutine_by_move.0.panic-abort.mir
async_closure_shims.main-{closure#0}-{closure#0}-{closure#0}.coroutine_by_move.0.panic-unwind.mir
async_closure_shims.main-{closure#0}-{closure#0}.coroutine_closure_by_move.0.panic-abort.mir
async_closure_shims.main-{closure#0}-{closure#0}.coroutine_closure_by_move.0.panic-unwind.mir
async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_ref.0.panic-abort.mir In ConstructCoroutineInClosureShim, pass receiver by ref, not pointer 2024-03-26 12:10:51 -04:00
async_closure_shims.main-{closure#0}-{closure#1}.coroutine_closure_by_ref.0.panic-unwind.mir In ConstructCoroutineInClosureShim, pass receiver by ref, not pointer 2024-03-26 12:10:51 -04:00
async_closure_shims.rs
basic_assignment.main.ElaborateDrops.diff
basic_assignment.main.SimplifyCfg-initial.after.mir bless mir-opt tests 2024-04-08 15:08:06 +00:00
basic_assignment.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
box_expr.main.ElaborateDrops.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
box_expr.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
byte_slice.main.SimplifyCfg-pre-optimizations.after.mir
byte_slice.rs
const_allocation2.main.GVN.after.32bit.mir
const_allocation2.main.GVN.after.64bit.mir
const_allocation2.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
const_allocation3.main.GVN.after.32bit.mir
const_allocation3.main.GVN.after.64bit.mir
const_allocation3.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
const_allocation.main.GVN.after.32bit.mir
const_allocation.main.GVN.after.64bit.mir
const_allocation.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
const_debuginfo.main.ConstDebugInfo.diff
const_debuginfo.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
const_goto_const_eval_fail.f.JumpThreading.diff
const_goto_const_eval_fail.rs
const_promotion_extern_static.BAR-promoted[0].SimplifyCfg-pre-optimizations.after.mir
const_promotion_extern_static.BAR.PromoteTemps.diff
const_promotion_extern_static.BOP.built.after.mir
const_promotion_extern_static.FOO-promoted[0].SimplifyCfg-pre-optimizations.after.mir
const_promotion_extern_static.FOO.PromoteTemps.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
const_promotion_extern_static.rs
coroutine_drop_cleanup.main-{closure#0}.coroutine_drop.0.panic-abort.mir Error on using yield without also using #[coroutine] on the closure 2024-04-24 08:05:29 +00:00
coroutine_drop_cleanup.main-{closure#0}.coroutine_drop.0.panic-unwind.mir Error on using yield without also using #[coroutine] on the closure 2024-04-24 08:05:29 +00:00
coroutine_drop_cleanup.rs Error on using yield without also using #[coroutine] on the closure 2024-04-24 08:05:29 +00:00
coroutine_storage_dead_unwind.main-{closure#0}.StateTransform.before.panic-abort.mir Error on using yield without also using #[coroutine] on the closure 2024-04-24 08:05:29 +00:00
coroutine_storage_dead_unwind.main-{closure#0}.StateTransform.before.panic-unwind.mir Error on using yield without also using #[coroutine] on the closure 2024-04-24 08:05:29 +00:00
coroutine_storage_dead_unwind.rs Error on using yield without also using #[coroutine] on the closure 2024-04-24 08:05:29 +00:00
coroutine_tiny.main-{closure#0}.coroutine_resume.0.mir Error on using yield without also using #[coroutine] on the closure 2024-04-24 08:05:29 +00:00
coroutine_tiny.rs Error on using yield without also using #[coroutine] on the closure 2024-04-24 08:05:29 +00:00
deduplicate_blocks.is_line_doc_comment_2.DeduplicateBlocks.panic-abort.diff
deduplicate_blocks.is_line_doc_comment_2.DeduplicateBlocks.panic-unwind.diff
deduplicate_blocks.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
derefer_complex_case.main.Derefer.panic-abort.diff
derefer_complex_case.main.Derefer.panic-unwind.diff
derefer_complex_case.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
derefer_inline_test.main.Derefer.panic-abort.diff
derefer_inline_test.main.Derefer.panic-unwind.diff
derefer_inline_test.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
derefer_terminator_test.main.Derefer.panic-abort.diff
derefer_terminator_test.main.Derefer.panic-unwind.diff
derefer_terminator_test.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
derefer_test_multiple.main.Derefer.diff
derefer_test_multiple.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
derefer_test.main.Derefer.diff
derefer_test.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
dont_inline_type_id.call.Inline.diff
dont_inline_type_id.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
early_otherwise_branch_3_element_tuple.opt1.EarlyOtherwiseBranch.diff Resolve unsound hoisting of discriminant in EarlyOtherwiseBranch 2024-04-07 21:14:26 +08:00
early_otherwise_branch_3_element_tuple.opt2.EarlyOtherwiseBranch.diff Don't change the otherwise of the switch 2024-04-08 19:20:07 +08:00
early_otherwise_branch_3_element_tuple.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
early_otherwise_branch_68867.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
early_otherwise_branch_68867.try_sum.EarlyOtherwiseBranch.diff Resolve unsound hoisting of discriminant in EarlyOtherwiseBranch 2024-04-07 21:14:26 +08:00
early_otherwise_branch_noopt.noopt1.EarlyOtherwiseBranch.diff
early_otherwise_branch_noopt.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
early_otherwise_branch_soundness.no_deref_ptr.EarlyOtherwiseBranch.diff Resolve unsound hoisting of discriminant in EarlyOtherwiseBranch 2024-04-07 21:14:26 +08:00
early_otherwise_branch_soundness.no_downcast.EarlyOtherwiseBranch.diff Resolve unsound hoisting of discriminant in EarlyOtherwiseBranch 2024-04-07 21:14:26 +08:00
early_otherwise_branch_soundness.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
early_otherwise_branch.opt1.EarlyOtherwiseBranch.diff Resolve unsound hoisting of discriminant in EarlyOtherwiseBranch 2024-04-07 21:14:26 +08:00
early_otherwise_branch.opt2.EarlyOtherwiseBranch.diff Resolve unsound hoisting of discriminant in EarlyOtherwiseBranch 2024-04-07 21:14:26 +08:00
early_otherwise_branch.opt3.EarlyOtherwiseBranch.diff Don't change the otherwise of the switch 2024-04-08 19:20:07 +08:00
early_otherwise_branch.opt4.EarlyOtherwiseBranch.diff Don't change the otherwise of the switch 2024-04-08 19:20:07 +08:00
early_otherwise_branch.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
enum_opt.cand.EnumSizeOpt.32bit.diff
enum_opt.cand.EnumSizeOpt.64bit.diff
enum_opt.invalid.EnumSizeOpt.32bit.diff
enum_opt.invalid.EnumSizeOpt.64bit.diff
enum_opt.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
enum_opt.trunc.EnumSizeOpt.32bit.diff
enum_opt.trunc.EnumSizeOpt.64bit.diff
enum_opt.unin.EnumSizeOpt.32bit.diff
enum_opt.unin.EnumSizeOpt.64bit.diff
fn_ptr_shim.core.ops-function-Fn-call.AddMovesForPackedDrops.before.mir
fn_ptr_shim.rs
funky_arms.float_to_exponential_common.GVN.panic-abort.diff At debuginfo=0, don't inline debuginfo when inlining 2024-04-18 09:35:35 -07:00
funky_arms.float_to_exponential_common.GVN.panic-unwind.diff At debuginfo=0, don't inline debuginfo when inlining 2024-04-18 09:35:35 -07:00
funky_arms.rs
graphviz.main.built.after.dot
graphviz.rs
gvn_copy_moves.fn0.GVN.diff
gvn_copy_moves.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
gvn_uninhabited.f.GVN.panic-abort.diff Dereference immutable borrows in GVN. 2024-04-20 19:22:13 +00:00
gvn_uninhabited.f.GVN.panic-unwind.diff Dereference immutable borrows in GVN. 2024-04-20 19:22:13 +00:00
gvn_uninhabited.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
gvn.arithmetic_checked.GVN.panic-abort.diff
gvn.arithmetic_checked.GVN.panic-unwind.diff
gvn.arithmetic_float.GVN.panic-abort.diff
gvn.arithmetic_float.GVN.panic-unwind.diff
gvn.arithmetic.GVN.panic-abort.diff
gvn.arithmetic.GVN.panic-unwind.diff
gvn.borrowed.GVN.panic-abort.diff Use newly exposed Freeze trait. 2024-04-20 19:25:20 +00:00
gvn.borrowed.GVN.panic-unwind.diff Use newly exposed Freeze trait. 2024-04-20 19:25:20 +00:00
gvn.cast.GVN.panic-abort.diff
gvn.cast.GVN.panic-unwind.diff
gvn.comparison.GVN.panic-abort.diff
gvn.comparison.GVN.panic-unwind.diff
gvn.constant_index_overflow.GVN.panic-abort.diff
gvn.constant_index_overflow.GVN.panic-unwind.diff
gvn.dereferences.GVN.panic-abort.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
gvn.dereferences.GVN.panic-unwind.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
gvn.duplicate_slice.GVN.panic-abort.diff
gvn.duplicate_slice.GVN.panic-unwind.diff
gvn.fn_pointers.GVN.panic-abort.diff Rename Unsafe to Safety 2024-05-17 18:33:37 -03:00
gvn.fn_pointers.GVN.panic-unwind.diff Rename Unsafe to Safety 2024-05-17 18:33:37 -03:00
gvn.indirect_static.GVN.panic-abort.diff
gvn.indirect_static.GVN.panic-unwind.diff
gvn.multiple_branches.GVN.panic-abort.diff
gvn.multiple_branches.GVN.panic-unwind.diff
gvn.non_freeze.GVN.panic-abort.diff Add tests. 2024-04-20 19:10:23 +00:00
gvn.non_freeze.GVN.panic-unwind.diff Add tests. 2024-04-20 19:10:23 +00:00
gvn.references.GVN.panic-abort.diff
gvn.references.GVN.panic-unwind.diff
gvn.repeat.GVN.panic-abort.diff
gvn.repeat.GVN.panic-unwind.diff
gvn.repeated_index.GVN.panic-abort.diff
gvn.repeated_index.GVN.panic-unwind.diff
gvn.rs Auto merge of #123602 - cjgillot:gvn-borrowed, r=oli-obk 2024-05-03 21:50:13 +00:00
gvn.slices.GVN.panic-abort.diff Dereference immutable borrows in GVN. 2024-04-20 19:22:13 +00:00
gvn.slices.GVN.panic-unwind.diff Dereference immutable borrows in GVN. 2024-04-20 19:22:13 +00:00
gvn.subexpression_elimination.GVN.panic-abort.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
gvn.subexpression_elimination.GVN.panic-unwind.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
gvn.unary.GVN.panic-abort.diff
gvn.unary.GVN.panic-unwind.diff
gvn.wide_ptr_integer.GVN.panic-abort.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
gvn.wide_ptr_integer.GVN.panic-unwind.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
gvn.wide_ptr_provenance.GVN.panic-abort.diff
gvn.wide_ptr_provenance.GVN.panic-unwind.diff
gvn.wide_ptr_same_provenance.GVN.panic-abort.diff
gvn.wide_ptr_same_provenance.GVN.panic-unwind.diff
gvn.wrap_unwrap.GVN.panic-abort.diff
gvn.wrap_unwrap.GVN.panic-unwind.diff
if_condition_int.dont_opt_bool.SimplifyComparisonIntegral.diff
if_condition_int.dont_opt_floats.SimplifyComparisonIntegral.diff
if_condition_int.dont_remove_comparison.SimplifyComparisonIntegral.diff
if_condition_int.opt_char.SimplifyComparisonIntegral.diff
if_condition_int.opt_i8.SimplifyComparisonIntegral.diff
if_condition_int.opt_multiple_ifs.SimplifyComparisonIntegral.diff
if_condition_int.opt_negative.SimplifyComparisonIntegral.diff
if_condition_int.opt_u32.SimplifyComparisonIntegral.diff
if_condition_int.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
inline_coroutine_body.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
inline_coroutine_body.run2-{closure#0}.Inline.panic-abort.diff At debuginfo=0, don't inline debuginfo when inlining 2024-04-18 09:35:35 -07:00
inline_coroutine_body.run2-{closure#0}.Inline.panic-unwind.diff At debuginfo=0, don't inline debuginfo when inlining 2024-04-18 09:35:35 -07:00
inline_generically_if_sized.call.Inline.diff At debuginfo=0, don't inline debuginfo when inlining 2024-04-18 09:35:35 -07:00
inline_generically_if_sized.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
issue_38669.main.SimplifyCfg-initial.after.mir
issue_38669.rs
issue_41110.main.ElaborateDrops.panic-abort.diff
issue_41110.main.ElaborateDrops.panic-unwind.diff
issue_41110.rs
issue_41110.test.ElaborateDrops.panic-abort.diff
issue_41110.test.ElaborateDrops.panic-unwind.diff
issue_41697.{impl#0}-{constant#0}.SimplifyCfg-promote-consts.after.mir
issue_41697.rs
issue_41888.main.ElaborateDrops.panic-abort.diff
issue_41888.main.ElaborateDrops.panic-unwind.diff
issue_41888.rs
issue_62289.rs
issue_62289.test.ElaborateDrops.before.panic-abort.mir Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
issue_62289.test.ElaborateDrops.before.panic-unwind.mir Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
issue_72181_1.f.built.after.mir
issue_72181_1.main.built.after.mir bless mir-opt tests 2024-04-08 15:08:06 +00:00
issue_72181_1.rs
issue_72181.bar.built.after.mir
issue_72181.foo.built.after.mir
issue_72181.main.built.after.mir Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
issue_72181.rs
issue_76432.rs
issue_76432.test.SimplifyComparisonIntegral.panic-abort.diff
issue_76432.test.SimplifyComparisonIntegral.panic-unwind.diff
issue_78192.f.InstSimplify.diff
issue_78192.rs
issue_91633.bar.built.after.mir
issue_91633.foo.built.after.mir
issue_91633.fun.built.after.mir
issue_91633.hey.built.after.mir
issue_91633.rs
issue_99325.main.built.after.32bit.mir bless mir-opt tests 2024-04-08 15:08:06 +00:00
issue_99325.main.built.after.64bit.mir bless mir-opt tests 2024-04-08 15:08:06 +00:00
issue_99325.rs
issue_101973.inner.GVN.panic-abort.diff At debuginfo=0, don't inline debuginfo when inlining 2024-04-18 09:35:35 -07:00
issue_101973.inner.GVN.panic-unwind.diff At debuginfo=0, don't inline debuginfo when inlining 2024-04-18 09:35:35 -07:00
issue_101973.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
issue_104451_unwindable_intrinsics.main.AbortUnwindingCalls.after.panic-abort.mir Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
issue_104451_unwindable_intrinsics.main.AbortUnwindingCalls.after.panic-unwind.mir Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
issue_104451_unwindable_intrinsics.rs
issue_120925_unsafefncast.rs
jump_threading.aggregate.JumpThreading.panic-abort.diff
jump_threading.aggregate.JumpThreading.panic-unwind.diff
jump_threading.assume.JumpThreading.panic-abort.diff
jump_threading.assume.JumpThreading.panic-unwind.diff
jump_threading.custom_discr.JumpThreading.panic-abort.diff
jump_threading.custom_discr.JumpThreading.panic-unwind.diff
jump_threading.dfa.JumpThreading.panic-abort.diff
jump_threading.dfa.JumpThreading.panic-unwind.diff
jump_threading.disappearing_bb.JumpThreading.panic-abort.diff
jump_threading.disappearing_bb.JumpThreading.panic-unwind.diff
jump_threading.duplicate_chain.JumpThreading.panic-abort.diff
jump_threading.duplicate_chain.JumpThreading.panic-unwind.diff
jump_threading.identity.JumpThreading.panic-abort.diff At debuginfo=0, don't inline debuginfo when inlining 2024-04-18 09:35:35 -07:00
jump_threading.identity.JumpThreading.panic-unwind.diff At debuginfo=0, don't inline debuginfo when inlining 2024-04-18 09:35:35 -07:00
jump_threading.multiple_match.JumpThreading.panic-abort.diff
jump_threading.multiple_match.JumpThreading.panic-unwind.diff
jump_threading.mutable_ref.JumpThreading.panic-abort.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
jump_threading.mutable_ref.JumpThreading.panic-unwind.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
jump_threading.mutate_discriminant.JumpThreading.panic-abort.diff
jump_threading.mutate_discriminant.JumpThreading.panic-unwind.diff
jump_threading.renumbered_bb.JumpThreading.panic-abort.diff
jump_threading.renumbered_bb.JumpThreading.panic-unwind.diff
jump_threading.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
jump_threading.too_complex.JumpThreading.panic-abort.diff
jump_threading.too_complex.JumpThreading.panic-unwind.diff
loop_test.main.SimplifyCfg-promote-consts.after.mir
loop_test.rs
lower_array_len.array_bound_mut.NormalizeArrayLen.panic-abort.diff
lower_array_len.array_bound_mut.NormalizeArrayLen.panic-unwind.diff
lower_array_len.array_bound.NormalizeArrayLen.panic-abort.diff
lower_array_len.array_bound.NormalizeArrayLen.panic-unwind.diff
lower_array_len.array_len_by_value.NormalizeArrayLen.panic-abort.diff
lower_array_len.array_len_by_value.NormalizeArrayLen.panic-unwind.diff
lower_array_len.array_len_raw.NormalizeArrayLen.panic-abort.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
lower_array_len.array_len_raw.NormalizeArrayLen.panic-unwind.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
lower_array_len.array_len_reborrow.NormalizeArrayLen.panic-abort.diff
lower_array_len.array_len_reborrow.NormalizeArrayLen.panic-unwind.diff
lower_array_len.array_len.NormalizeArrayLen.panic-abort.diff
lower_array_len.array_len.NormalizeArrayLen.panic-unwind.diff
lower_array_len.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
lower_intrinsics.align_of.LowerIntrinsics.panic-abort.diff
lower_intrinsics.align_of.LowerIntrinsics.panic-unwind.diff
lower_intrinsics.assume.LowerIntrinsics.panic-abort.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
lower_intrinsics.assume.LowerIntrinsics.panic-unwind.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
lower_intrinsics.discriminant.LowerIntrinsics.panic-abort.diff
lower_intrinsics.discriminant.LowerIntrinsics.panic-unwind.diff
lower_intrinsics.f_copy_nonoverlapping.LowerIntrinsics.panic-abort.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
lower_intrinsics.f_copy_nonoverlapping.LowerIntrinsics.panic-unwind.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
lower_intrinsics.forget.LowerIntrinsics.panic-abort.diff
lower_intrinsics.forget.LowerIntrinsics.panic-unwind.diff
lower_intrinsics.make_pointers.LowerIntrinsics.panic-abort.diff Add an intrinsic that lowers to AggregateKind::RawPtr 2024-04-21 11:08:37 -07:00
lower_intrinsics.make_pointers.LowerIntrinsics.panic-unwind.diff Add an intrinsic that lowers to AggregateKind::RawPtr 2024-04-21 11:08:37 -07:00
lower_intrinsics.non_const.LowerIntrinsics.panic-abort.diff
lower_intrinsics.non_const.LowerIntrinsics.panic-unwind.diff
lower_intrinsics.ptr_offset.LowerIntrinsics.panic-abort.diff
lower_intrinsics.ptr_offset.LowerIntrinsics.panic-unwind.diff
lower_intrinsics.read_via_copy_primitive.LowerIntrinsics.panic-abort.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
lower_intrinsics.read_via_copy_primitive.LowerIntrinsics.panic-unwind.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
lower_intrinsics.read_via_copy_uninhabited.LowerIntrinsics.panic-abort.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
lower_intrinsics.read_via_copy_uninhabited.LowerIntrinsics.panic-unwind.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
lower_intrinsics.rs Add an intrinsic that lowers to AggregateKind::RawPtr 2024-04-21 11:08:37 -07:00
lower_intrinsics.size_of.LowerIntrinsics.panic-abort.diff
lower_intrinsics.size_of.LowerIntrinsics.panic-unwind.diff
lower_intrinsics.three_way_compare_char.LowerIntrinsics.panic-abort.diff Add+Use mir::BinOp::Cmp 2024-03-23 23:23:41 -07:00
lower_intrinsics.three_way_compare_char.LowerIntrinsics.panic-unwind.diff Add+Use mir::BinOp::Cmp 2024-03-23 23:23:41 -07:00
lower_intrinsics.three_way_compare_signed.LowerIntrinsics.panic-abort.diff Add+Use mir::BinOp::Cmp 2024-03-23 23:23:41 -07:00
lower_intrinsics.three_way_compare_signed.LowerIntrinsics.panic-unwind.diff Add+Use mir::BinOp::Cmp 2024-03-23 23:23:41 -07:00
lower_intrinsics.three_way_compare_unsigned.LowerIntrinsics.panic-abort.diff Add+Use mir::BinOp::Cmp 2024-03-23 23:23:41 -07:00
lower_intrinsics.three_way_compare_unsigned.LowerIntrinsics.panic-unwind.diff Add+Use mir::BinOp::Cmp 2024-03-23 23:23:41 -07:00
lower_intrinsics.transmute_inhabited.LowerIntrinsics.panic-abort.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
lower_intrinsics.transmute_inhabited.LowerIntrinsics.panic-unwind.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
lower_intrinsics.transmute_ref_dst.LowerIntrinsics.panic-abort.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
lower_intrinsics.transmute_ref_dst.LowerIntrinsics.panic-unwind.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
lower_intrinsics.transmute_to_box_uninhabited.LowerIntrinsics.panic-abort.diff
lower_intrinsics.transmute_to_box_uninhabited.LowerIntrinsics.panic-unwind.diff
lower_intrinsics.transmute_to_mut_uninhabited.LowerIntrinsics.panic-abort.diff
lower_intrinsics.transmute_to_mut_uninhabited.LowerIntrinsics.panic-unwind.diff
lower_intrinsics.transmute_to_ref_uninhabited.LowerIntrinsics.panic-abort.diff
lower_intrinsics.transmute_to_ref_uninhabited.LowerIntrinsics.panic-unwind.diff
lower_intrinsics.transmute_uninhabited.LowerIntrinsics.panic-abort.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
lower_intrinsics.transmute_uninhabited.LowerIntrinsics.panic-unwind.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
lower_intrinsics.unchecked.LowerIntrinsics.panic-abort.diff De-LLVM the unchecked shifts [MCP#693] 2024-03-30 03:32:11 -07:00
lower_intrinsics.unchecked.LowerIntrinsics.panic-unwind.diff De-LLVM the unchecked shifts [MCP#693] 2024-03-30 03:32:11 -07:00
lower_intrinsics.unreachable.LowerIntrinsics.panic-abort.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
lower_intrinsics.unreachable.LowerIntrinsics.panic-unwind.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
lower_intrinsics.with_overflow.LowerIntrinsics.panic-abort.diff
lower_intrinsics.with_overflow.LowerIntrinsics.panic-unwind.diff
lower_intrinsics.wrapping.LowerIntrinsics.panic-abort.diff
lower_intrinsics.wrapping.LowerIntrinsics.panic-unwind.diff
lower_intrinsics.write_via_move_string.LowerIntrinsics.panic-abort.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
lower_intrinsics.write_via_move_string.LowerIntrinsics.panic-unwind.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
lower_slice_len.bound.LowerSliceLenCalls.panic-abort.diff
lower_slice_len.bound.LowerSliceLenCalls.panic-unwind.diff
lower_slice_len.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
match_arm_scopes.complicated_match.panic-abort.SimplifyCfg-initial.after-ElaborateDrops.after.diff Add a non-shallow fake borrow 2024-04-20 16:01:35 +02:00
match_arm_scopes.complicated_match.panic-unwind.SimplifyCfg-initial.after-ElaborateDrops.after.diff Add a non-shallow fake borrow 2024-04-20 16:01:35 +02:00
match_arm_scopes.rs
matches_reduce_branches.bar.MatchBranchSimplification.diff
matches_reduce_branches.foo.MatchBranchSimplification.diff
matches_reduce_branches.match_i8_i16_failed.MatchBranchSimplification.diff Update matches_reduce_branches.rs 2024-04-08 18:54:33 +08:00
matches_reduce_branches.match_i8_i16.MatchBranchSimplification.diff Disable SimplifyToExp in MatchBranchSimplification 2024-04-20 05:37:53 +08:00
matches_reduce_branches.match_i16_i8.MatchBranchSimplification.diff Disable SimplifyToExp in MatchBranchSimplification 2024-04-20 05:37:53 +08:00
matches_reduce_branches.match_i128_u128.MatchBranchSimplification.diff Disable SimplifyToExp in MatchBranchSimplification 2024-04-20 05:37:53 +08:00
matches_reduce_branches.match_nested_if.MatchBranchSimplification.diff
matches_reduce_branches.match_u8_i16_2.MatchBranchSimplification.diff Update matches_reduce_branches.rs 2024-04-08 18:54:33 +08:00
matches_reduce_branches.match_u8_i16_failed.MatchBranchSimplification.diff Update matches_reduce_branches.rs 2024-04-08 18:54:33 +08:00
matches_reduce_branches.match_u8_i16_fallback.MatchBranchSimplification.diff Update matches_reduce_branches.rs 2024-04-08 18:54:33 +08:00
matches_reduce_branches.match_u8_i16.MatchBranchSimplification.diff Disable SimplifyToExp in MatchBranchSimplification 2024-04-20 05:37:53 +08:00
matches_reduce_branches.match_u8_u16_2.MatchBranchSimplification.diff Update matches_reduce_branches.rs 2024-04-08 18:54:33 +08:00
matches_reduce_branches.match_u8_u16.MatchBranchSimplification.diff Disable SimplifyToExp in MatchBranchSimplification 2024-04-20 05:37:53 +08:00
matches_reduce_branches.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
matches_u8.exhaustive_match_i8.MatchBranchSimplification.diff Disable SimplifyToExp in MatchBranchSimplification 2024-04-20 05:37:53 +08:00
matches_u8.exhaustive_match.MatchBranchSimplification.diff Disable SimplifyToExp in MatchBranchSimplification 2024-04-20 05:37:53 +08:00
matches_u8.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
multiple_return_terminators.rs
multiple_return_terminators.test.MultipleReturnTerminators.diff
no_drop_for_inactive_variant.rs
no_drop_for_inactive_variant.unwrap.SimplifyCfg-pre-optimizations.after.panic-abort.mir
no_drop_for_inactive_variant.unwrap.SimplifyCfg-pre-optimizations.after.panic-unwind.mir
no_spurious_drop_after_call.main.ElaborateDrops.before.panic-abort.mir
no_spurious_drop_after_call.main.ElaborateDrops.before.panic-unwind.mir
no_spurious_drop_after_call.rs
nrvo_miscompile_111005.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
nrvo_miscompile_111005.wrong.RenameReturnPlace.diff
nrvo_simple.nrvo.RenameReturnPlace.panic-abort.diff
nrvo_simple.nrvo.RenameReturnPlace.panic-unwind.diff
nrvo_simple.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
packed_struct_drop_aligned.main.SimplifyCfg-pre-optimizations.after.panic-abort.mir
packed_struct_drop_aligned.main.SimplifyCfg-pre-optimizations.after.panic-unwind.mir
packed_struct_drop_aligned.rs
README.md mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
reference_prop.debuginfo.ReferencePropagation.diff
reference_prop.dominate_storage.ReferencePropagation.diff
reference_prop.maybe_dead.ReferencePropagation.diff
reference_prop.multiple_storage.ReferencePropagation.diff
reference_prop.mut_raw_then_mut_shr.ReferencePropagation.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
reference_prop.read_through_raw.ReferencePropagation.diff
reference_prop.reference_propagation_const_ptr.ReferencePropagation.diff GVN borrowed locals too. 2024-04-20 19:19:06 +00:00
reference_prop.reference_propagation_mut_ptr.ReferencePropagation.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
reference_prop.reference_propagation_mut.ReferencePropagation.diff
reference_prop.reference_propagation.ReferencePropagation.diff GVN borrowed locals too. 2024-04-20 19:19:06 +00:00
reference_prop.rs Auto merge of #123602 - cjgillot:gvn-borrowed, r=oli-obk 2024-05-03 21:50:13 +00:00
reference_prop.unique_with_copies.ReferencePropagation.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
remove_fake_borrows.match_guard.CleanupPostBorrowck.panic-abort.diff Add a non-shallow fake borrow 2024-04-20 16:01:35 +02:00
remove_fake_borrows.match_guard.CleanupPostBorrowck.panic-unwind.diff Add a non-shallow fake borrow 2024-04-20 16:01:35 +02:00
remove_fake_borrows.rs
remove_never_const.no_codegen.PreCodegen.after.mir
remove_never_const.rs
remove_storage_markers.main.RemoveStorageMarkers.panic-abort.diff
remove_storage_markers.main.RemoveStorageMarkers.panic-unwind.diff
remove_storage_markers.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
remove_unneeded_drops.cannot_opt_generic.RemoveUnneededDrops.panic-abort.diff At debuginfo=0, don't inline debuginfo when inlining 2024-04-18 09:35:35 -07:00
remove_unneeded_drops.cannot_opt_generic.RemoveUnneededDrops.panic-unwind.diff At debuginfo=0, don't inline debuginfo when inlining 2024-04-18 09:35:35 -07:00
remove_unneeded_drops.dont_opt.RemoveUnneededDrops.panic-abort.diff At debuginfo=0, don't inline debuginfo when inlining 2024-04-18 09:35:35 -07:00
remove_unneeded_drops.dont_opt.RemoveUnneededDrops.panic-unwind.diff At debuginfo=0, don't inline debuginfo when inlining 2024-04-18 09:35:35 -07:00
remove_unneeded_drops.opt_generic_copy.RemoveUnneededDrops.panic-abort.diff At debuginfo=0, don't inline debuginfo when inlining 2024-04-18 09:35:35 -07:00
remove_unneeded_drops.opt_generic_copy.RemoveUnneededDrops.panic-unwind.diff At debuginfo=0, don't inline debuginfo when inlining 2024-04-18 09:35:35 -07:00
remove_unneeded_drops.opt.RemoveUnneededDrops.panic-abort.diff At debuginfo=0, don't inline debuginfo when inlining 2024-04-18 09:35:35 -07:00
remove_unneeded_drops.opt.RemoveUnneededDrops.panic-unwind.diff At debuginfo=0, don't inline debuginfo when inlining 2024-04-18 09:35:35 -07:00
remove_unneeded_drops.rs
remove_zsts.get_union.PreCodegen.after.mir
remove_zsts.get_union.RemoveZsts.diff
remove_zsts.rs
retag.{impl#0}-foo_shr.SimplifyCfg-pre-optimizations.after.panic-abort.mir
retag.{impl#0}-foo_shr.SimplifyCfg-pre-optimizations.after.panic-unwind.mir
retag.{impl#0}-foo.SimplifyCfg-pre-optimizations.after.panic-abort.mir
retag.{impl#0}-foo.SimplifyCfg-pre-optimizations.after.panic-unwind.mir
retag.array_casts.SimplifyCfg-pre-optimizations.after.panic-abort.mir Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
retag.array_casts.SimplifyCfg-pre-optimizations.after.panic-unwind.mir Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
retag.box_to_raw_mut.SimplifyCfg-pre-optimizations.after.panic-abort.mir
retag.box_to_raw_mut.SimplifyCfg-pre-optimizations.after.panic-unwind.mir
retag.core.ptr-drop_in_place.Test.SimplifyCfg-make_shim.after.panic-abort.mir
retag.core.ptr-drop_in_place.Test.SimplifyCfg-make_shim.after.panic-unwind.mir
retag.main-{closure#0}.SimplifyCfg-pre-optimizations.after.panic-abort.mir
retag.main-{closure#0}.SimplifyCfg-pre-optimizations.after.panic-unwind.mir
retag.main.SimplifyCfg-pre-optimizations.after.panic-abort.mir Rename Unsafe to Safety 2024-05-17 18:33:37 -03:00
retag.main.SimplifyCfg-pre-optimizations.after.panic-unwind.mir Rename Unsafe to Safety 2024-05-17 18:33:37 -03:00
retag.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
return_an_array.rs
separate_const_switch.identity.JumpThreading.diff At debuginfo=0, don't inline debuginfo when inlining 2024-04-18 09:35:35 -07:00
separate_const_switch.rs
separate_const_switch.too_complex.JumpThreading.diff
set_no_discriminant.f.JumpThreading.diff
set_no_discriminant.generic.JumpThreading.diff
set_no_discriminant.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
simplify_arm_identity.rs
simplify_arm.id_try.SimplifyArmIdentity.diff
simplify_arm.id_try.SimplifyBranchSame.diff
simplify_arm.rs
simplify_cfg.main.SimplifyCfg-initial.diff
simplify_cfg.main.SimplifyCfg-post-analysis.diff
simplify_cfg.rs
simplify_dead_blocks.assert_nonzero_nonmax.SimplifyCfg-after-unreachable-enum-branching.diff
simplify_dead_blocks.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
simplify_if.main.SimplifyConstCondition-after-const-prop.panic-abort.diff
simplify_if.main.SimplifyConstCondition-after-const-prop.panic-unwind.diff
simplify_if.rs
simplify_locals_fixedpoint.foo.SimplifyLocals-final.panic-abort.diff
simplify_locals_fixedpoint.foo.SimplifyLocals-final.panic-unwind.diff
simplify_locals_fixedpoint.rs
simplify_locals_removes_unused_consts.main.SimplifyLocals-before-const-prop.panic-abort.diff
simplify_locals_removes_unused_consts.main.SimplifyLocals-before-const-prop.panic-unwind.diff
simplify_locals_removes_unused_consts.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
simplify_locals_removes_unused_discriminant_reads.map.SimplifyLocals-before-const-prop.diff
simplify_locals_removes_unused_discriminant_reads.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
simplify_locals.c.SimplifyLocals-before-const-prop.diff
simplify_locals.d1.SimplifyLocals-before-const-prop.diff
simplify_locals.d2.SimplifyLocals-before-const-prop.diff
simplify_locals.expose_provenance.SimplifyLocals-before-const-prop.diff rename expose_addr to expose_provenance 2024-04-03 16:00:38 +02:00
simplify_locals.r.SimplifyLocals-before-const-prop.diff
simplify_locals.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
simplify_locals.t1.SimplifyLocals-before-const-prop.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
simplify_locals.t2.SimplifyLocals-before-const-prop.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
simplify_locals.t3.SimplifyLocals-before-const-prop.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
simplify_locals.t4.SimplifyLocals-before-const-prop.diff Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
simplify_match.main.GVN.panic-abort.diff
simplify_match.main.GVN.panic-unwind.diff
simplify_match.rs
simplify_try_if_let.{impl#0}-append.SimplifyArmIdentity.diff
simplify_try_if_let.rs
slice_drop_shim.core.ptr-drop_in_place.[String].AddMovesForPackedDrops.before.mir
slice_drop_shim.rs
ssa_unreachable_116212.rs
storage_ranges.main.nll.0.mir
storage_ranges.rs
switch_to_self.rs
switch_to_self.test.MatchBranchSimplification.diff
tls_access.main.PreCodegen.after.mir Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
tls_access.rs
uninhabited_enum.process_never.SimplifyLocals-final.after.mir Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
uninhabited_enum.process_void.SimplifyLocals-final.after.mir Remove MIR unsafe check 2024-04-03 08:50:12 +00:00
uninhabited_enum.rs
uninhabited_fallthrough_elimination.eliminate_fallthrough.UnreachableEnumBranching.diff
uninhabited_fallthrough_elimination.keep_fallthrough.UnreachableEnumBranching.diff
uninhabited_fallthrough_elimination.rs
unreachable_diverging.main.UnreachablePropagation.panic-abort.diff
unreachable_diverging.main.UnreachablePropagation.panic-unwind.diff
unreachable_diverging.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
unreachable_enum_branching.byref.UnreachableEnumBranching.panic-abort.diff
unreachable_enum_branching.byref.UnreachableEnumBranching.panic-unwind.diff
unreachable_enum_branching.custom_discriminant.UnreachableEnumBranching.panic-abort.diff
unreachable_enum_branching.custom_discriminant.UnreachableEnumBranching.panic-unwind.diff
unreachable_enum_branching.otherwise_t1.UnreachableEnumBranching.panic-abort.diff
unreachable_enum_branching.otherwise_t1.UnreachableEnumBranching.panic-unwind.diff
unreachable_enum_branching.otherwise_t2.UnreachableEnumBranching.panic-abort.diff
unreachable_enum_branching.otherwise_t2.UnreachableEnumBranching.panic-unwind.diff
unreachable_enum_branching.otherwise_t3.UnreachableEnumBranching.panic-abort.diff
unreachable_enum_branching.otherwise_t3.UnreachableEnumBranching.panic-unwind.diff
unreachable_enum_branching.otherwise_t4_unreachable_default_2.UnreachableEnumBranching.panic-abort.diff
unreachable_enum_branching.otherwise_t4_unreachable_default_2.UnreachableEnumBranching.panic-unwind.diff
unreachable_enum_branching.otherwise_t4_unreachable_default.UnreachableEnumBranching.panic-abort.diff
unreachable_enum_branching.otherwise_t4_unreachable_default.UnreachableEnumBranching.panic-unwind.diff
unreachable_enum_branching.otherwise_t4.UnreachableEnumBranching.panic-abort.diff
unreachable_enum_branching.otherwise_t4.UnreachableEnumBranching.panic-unwind.diff
unreachable_enum_branching.otherwise_t5_unreachable_default.UnreachableEnumBranching.panic-abort.diff
unreachable_enum_branching.otherwise_t5_unreachable_default.UnreachableEnumBranching.panic-unwind.diff
unreachable_enum_branching.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
unreachable_enum_branching.simple.UnreachableEnumBranching.panic-abort.diff
unreachable_enum_branching.simple.UnreachableEnumBranching.panic-unwind.diff
unreachable.as_match.UnreachablePropagation.panic-abort.diff
unreachable.as_match.UnreachablePropagation.panic-unwind.diff
unreachable.if_let.UnreachablePropagation.panic-abort.diff
unreachable.if_let.UnreachablePropagation.panic-unwind.diff
unreachable.rs mir-opt tests: rename unit-test -> test-mir-pass 2024-04-20 13:19:34 +02:00
unusual_item_types.{impl#0}-ASSOCIATED_CONSTANT.built.after.mir
unusual_item_types.core.ptr-drop_in_place.Vec_i32_.AddMovesForPackedDrops.before.mir
unusual_item_types.E-V-{constant#0}.built.after.mir
unusual_item_types.rs
unusual_item_types.Test-X-{constructor#0}.built.after.mir

This folder contains tests for MIR optimizations.

The mir-opt test format emits MIR to extra files that you can automatically update by specifying --bless on the command line (just like ui tests updating .stderr files).

--blessable test format

By default 32 bit and 64 bit targets use the same dump files, which can be problematic in the presence of pointers in constants or other bit width dependent things. In that case you can add

// EMIT_MIR_FOR_EACH_BIT_WIDTH

to your test, causing separate files to be generated for 32bit and 64bit systems.

Testing a particular MIR pass

If you are only testing the behavior of a particular mir-opt pass on some specific input (as is usually the case), you should add

//@ test-mir-pass: PassName

to the top of the file. This makes sure that other passes don't run which means you'll get the input you expected and your test won't break when other code changes. This also lets you test passes that are disabled by default.

Emit a diff of the mir for a specific optimization

This is what you want most often when you want to see how an optimization changes the MIR.

// EMIT_MIR $file_name_of_some_mir_dump.diff

Emit mir after a specific optimization

Use this if you are just interested in the final state after an optimization.

// EMIT_MIR $file_name_of_some_mir_dump.after.mir

Emit mir before a specific optimization

This exists mainly for completeness and is rarely useful.

// EMIT_MIR $file_name_of_some_mir_dump.before.mir

FileCheck directives

The LLVM FileCheck tool is used to verify the contents of output MIR against CHECK directives present in the test file. This works on the runtime MIR, generated by --emit=mir, and not on the output of a individual passes.

Use // skip-filecheck to prevent FileCheck from running.

To check MIR for function foo, start with a // CHECK-LABEL fn foo( directive.

{{regex}} syntax allows to match regex.

[[name:regex]] syntax allows to bind name to a string matching regex, and refer to it as [[name]] in later directives, regex should be written not to match a leading space. Use [[my_local:_.*]] to name a local, and [[my_bb:bb.*]] to name a block.

Documentation for FileCheck is available here: https://www.llvm.org/docs/CommandGuide/FileCheck.html