diff options
Diffstat (limited to 'src/test/codegen')
| -rw-r--r-- | src/test/codegen/adjustments.rs | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/test/codegen/adjustments.rs b/src/test/codegen/adjustments.rs index b0438f561b9..d9a7acf1129 100644 --- a/src/test/codegen/adjustments.rs +++ b/src/test/codegen/adjustments.rs @@ -26,3 +26,12 @@ pub fn no_op_slice_adjustment(x: &[u8]) -> &[u8] { // CHECK: call void @llvm.memcpy.{{.*}}(i8* [[DST]], i8* [[SRC]], { x } } + +// CHECK-LABEL: @no_op_slice_adjustment2 +#[no_mangle] +pub fn no_op_slice_adjustment2(x: &[u8]) -> &[u8] { + // We used to generate an extra alloca and memcpy for the function's return value, so check + // that there's no memcpy (the slice is written to sret_slot element-wise) +// CHECK-NOT: call void @llvm.memcpy. + no_op_slice_adjustment(x) +} |