Matthias Krüger c772af78e9

Rollup merge of #146732 - durin42:llvm-22-less-assumes, r=nikic ...

tests: relax expectations after llvm change 902ddda120a5

LLVM 22 is able to drop assumes that seem to not help further optimizations, which actually seems to dramatically _help_ further optimizations in some of our small test cases.

I'm a little unclear how to fix the last failure, in `tests/codegen-llvm/issues/issue-122600-ptr-discriminant-update.rs`:

```
-; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite, inaccessiblemem: write) uwtable
+; Function Attrs: mustprogress nofree norecurse nosync nounwind nonlazybind willreturn memory(argmem: readwrite, inaccessiblemem: write) uwtable
 define void ``@update(ptr`` noundef captures(none) %s) unnamed_addr #0 {
 start:
-  %_3.sroa.0.0.copyload = load i8, ptr %s, align 1
-  %0 = trunc nuw i8 %_3.sroa.0.0.copyload to i1
-  %1 = xor i1 %0, true
-  tail call void ``@llvm.assume(i1`` %1)
   store i8 1, ptr %s, align 1
   ret void
 }
```

I'm just not conversant enough in LLVM IR to follow the changes here.

``@rustbot`` label llvm-main
r? nikic

2025-09-27 21:25:57 +02:00

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and-masked-comparison-131162.rs

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assert-for-loop-bounds-check-71997.rs

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cows-dont-have-branches-117763.rs

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elided-division-by-zero-check-74917.rs

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for-loop-inner-assert-91109.rs

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issue-13018.rs

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issue-15953.rs

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issue-27130.rs

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issue-32031.rs

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issue-32364.rs

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issue-34634.rs

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issue-34947-pow-i32.rs

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issue-36010-some-box-is_some.rs

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issue-37945.rs

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issue-45222.rs

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issue-45466.rs

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issue-45964-bounds-check-slice-pos.rs

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issue-47278.rs

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issue-47442.rs

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issue-56267-2.rs

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issue-56267.rs

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issue-56927.rs

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issue-58881.rs

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issue-59352.rs

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issue-64219-fn-ptr-call-returning-never-is-noreturn.rs

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issue-68667-unwrap-combinators.rs

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issue-69101-bounds-check.rs

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issue-73031.rs

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issue-73258.rs

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issue-73338-effecient-cmp.rs

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issue-73396-bounds-check-after-position.rs

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issue-73827-bounds-check-index-in-subexpr.rs

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issue-74938-array-split-at.rs

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issue-75525-bounds-checks.rs

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issue-75546.rs

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issue-75659.rs

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issue-75978.rs

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issue-77812.rs

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issue-84268.rs

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issue-85872-multiple-reverse.rs

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issue-86106.rs

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issue-86109-eliminate-div-by-zero-check.rs

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issue-93036-assert-index.rs

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issue-96274.rs

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issue-96497-slice-size-nowrap.rs

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issue-98294-get-mut-copy-from-slice-opt.rs

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issue-98678-async.rs

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issue-98678-closure-coroutine.rs

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issue-98678-enum.rs

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issue-98678-struct-union.rs

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issue-99960.rs

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issue-101048.rs

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issue-101082.rs

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issue-101814.rs

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issue-103132.rs

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issue-103285-ptr-addr-overflow-check.rs

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issue-103327.rs

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issue-103840.rs

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issue-105386-ub-in-debuginfo.rs

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issue-106369.rs

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issue-107681-unwrap_unchecked.rs

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issue-108395-branchy-bool-match.rs

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issue-109328-split_first.rs

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issue-110797-enum-jump-same.rs

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issue-111603.rs

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issue-112509-slice-get-andthen-get.rs

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issue-113757-bounds-check-after-cmp-max.rs

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issue-114312.rs

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issue-115385-llvm-jump-threading.rs

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issue-116878.rs

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issue-118306.rs

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issue-118392.rs

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issue-119422.rs

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issue-121719-common-field-offset.rs

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issue-122600-ptr-discriminant-update.rs

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issue-122734-match-eq.rs

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issue-123712-str-to-lower-autovectorization.rs

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issue-126585.rs

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issue-129795.rs

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issue-136329-optnone-noinline.rs

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iter-max-no-unwrap-failed-129583.rs

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looping-over-ne-bytes-133528.rs

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matches-logical-or-141497.rs

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no-bounds-check-after-assert-110971.rs

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no-panic-for-pop-after-assert-71257.rs

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num-is-digit-to-digit-59352.rs

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saturating-sub-index-139759.rs

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slice-index-bounds-check-80075.rs

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str-to-string-128690.rs

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