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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:20:29 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:20:29 +0000 |
commit | 631cd5845e8de329d0e227aaa707d7ea228b8f8f (patch) | |
tree | a1b87c8f8cad01cf18f7c5f57a08f102771ed303 /tests/mir-opt/const_prop/transmute.rs | |
parent | Adding debian version 1.69.0+dfsg1-1. (diff) | |
download | rustc-631cd5845e8de329d0e227aaa707d7ea228b8f8f.tar.xz rustc-631cd5845e8de329d0e227aaa707d7ea228b8f8f.zip |
Merging upstream version 1.70.0+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/mir-opt/const_prop/transmute.rs')
-rw-r--r-- | tests/mir-opt/const_prop/transmute.rs | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/tests/mir-opt/const_prop/transmute.rs b/tests/mir-opt/const_prop/transmute.rs new file mode 100644 index 000000000..b753cdccd --- /dev/null +++ b/tests/mir-opt/const_prop/transmute.rs @@ -0,0 +1,61 @@ +// unit-test: ConstProp +// compile-flags: -O --crate-type=lib + +use std::mem::transmute; + +// EMIT_MIR transmute.less_as_i8.ConstProp.diff +pub fn less_as_i8() -> i8 { + unsafe { transmute(std::cmp::Ordering::Less) } +} + +// EMIT_MIR transmute.from_char.ConstProp.diff +pub fn from_char() -> i32 { + unsafe { transmute('R') } +} + +// EMIT_MIR transmute.valid_char.ConstProp.diff +pub fn valid_char() -> char { + unsafe { transmute(0x52_u32) } +} + +// EMIT_MIR transmute.invalid_char.ConstProp.diff +pub unsafe fn invalid_char() -> char { + unsafe { transmute(i32::MAX) } +} + +// EMIT_MIR transmute.invalid_bool.ConstProp.diff +pub unsafe fn invalid_bool() -> bool { + unsafe { transmute(-1_i8) } +} + +// EMIT_MIR transmute.undef_union_as_integer.ConstProp.diff +pub unsafe fn undef_union_as_integer() -> u32 { + union Union32 { value: u32, unit: () } + unsafe { transmute(Union32 { unit: () }) } +} + +// EMIT_MIR transmute.unreachable_direct.ConstProp.diff +pub unsafe fn unreachable_direct() -> ! { + let x: Never = unsafe { transmute(()) }; + match x {} +} + +// EMIT_MIR transmute.unreachable_ref.ConstProp.diff +pub unsafe fn unreachable_ref() -> ! { + let x: &Never = unsafe { transmute(1_usize) }; + match *x {} +} + +// EMIT_MIR transmute.unreachable_mut.ConstProp.diff +pub unsafe fn unreachable_mut() -> ! { + let x: &mut Never = unsafe { transmute(1_usize) }; + match *x {} +} + +// EMIT_MIR transmute.unreachable_box.ConstProp.diff +pub unsafe fn unreachable_box() -> ! { + let x: Box<Never> = unsafe { transmute(1_usize) }; + match *x {} +} + +enum Never {} |