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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:20:29 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:20:29 +0000
commit631cd5845e8de329d0e227aaa707d7ea228b8f8f (patch)
treea1b87c8f8cad01cf18f7c5f57a08f102771ed303 /tests/codegen/vec-as-ptr.rs
parentAdding debian version 1.69.0+dfsg1-1. (diff)
downloadrustc-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/codegen/vec-as-ptr.rs')
-rw-r--r--tests/codegen/vec-as-ptr.rs19
1 files changed, 19 insertions, 0 deletions
diff --git a/tests/codegen/vec-as-ptr.rs b/tests/codegen/vec-as-ptr.rs
new file mode 100644
index 000000000..8ff7ba9cb
--- /dev/null
+++ b/tests/codegen/vec-as-ptr.rs
@@ -0,0 +1,19 @@
+// compile-flags: -O -Zmerge-functions=disabled
+
+#![crate_type = "lib"]
+
+// Test that even though we return a *const u8 not a &[u8] or a NonNull<u8>, LLVM knows that this
+// pointer is nonnull.
+// CHECK: nonnull {{i8\*|ptr}} @vec_as_ptr
+#[no_mangle]
+pub fn vec_as_ptr(v: &Vec<u8>) -> *const u8 {
+ v.as_ptr()
+}
+
+// Test that even though we return a *const u8 not a &[u8] or a NonNull<u8>, LLVM knows that this
+// pointer is nonnull.
+// CHECK: nonnull {{i8\*|ptr}} @vec_as_mut_ptr
+#[no_mangle]
+pub fn vec_as_mut_ptr(v: &mut Vec<u8>) -> *mut u8 {
+ v.as_mut_ptr()
+}