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adapt tests/codegen/vec-shrink-panik for LLVM 17 #109394

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Mar 23, 2023
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adapt tests/codegen/vec-shrink-panik for LLVM 17 #109394

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23 changes: 14 additions & 9 deletions tests/codegen/vec-shrink-panik.rs
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Original file line number Diff line number Diff line change
@@ -1,3 +1,8 @@
// revisions: old new
// LLVM 17 realizes double panic is not possible and doesn't generate calls
// to panic_cannot_unwind.
// [old]ignore-llvm-version: 17 - 99
// [new]min-llvm-version: 17
// compile-flags: -O
// ignore-debug: the debug assertions get in the way
#![crate_type = "lib"]
Expand All @@ -18,11 +23,11 @@ pub fn shrink_to_fit(vec: &mut Vec<u32>) {
pub fn issue71861(vec: Vec<u32>) -> Box<[u32]> {
// CHECK-NOT: panic

// Call to panic_cannot_unwind in case of double-panic is expected,
// but other panics are not.
// Call to panic_cannot_unwind in case of double-panic is expected
// on LLVM 16 and older, but other panics are not.
// CHECK: cleanup
// CHECK-NEXT: ; call core::panicking::panic_cannot_unwind
// CHECK-NEXT: panic_cannot_unwind
// old-NEXT: ; call core::panicking::panic_cannot_unwind
// old-NEXT: panic_cannot_unwind

// CHECK-NOT: panic
vec.into_boxed_slice()
Expand All @@ -34,14 +39,14 @@ pub fn issue75636<'a>(iter: &[&'a str]) -> Box<[&'a str]> {
// CHECK-NOT: panic

// Call to panic_cannot_unwind in case of double-panic is expected,
// but other panics are not.
// on LLVM 16 and older, but other panics are not.
// CHECK: cleanup
// CHECK-NEXT: ; call core::panicking::panic_cannot_unwind
// CHECK-NEXT: panic_cannot_unwind
// old-NEXT: ; call core::panicking::panic_cannot_unwind
// old-NEXT: panic_cannot_unwind

// CHECK-NOT: panic
iter.iter().copied().collect()
}

// CHECK: ; core::panicking::panic_cannot_unwind
// CHECK: declare void @{{.*}}panic_cannot_unwind
// old: ; core::panicking::panic_cannot_unwind
// old: declare void @{{.*}}panic_cannot_unwind