From 64d98f8ee037282c35007b64c2649055c56af1db Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:19:03 +0200 Subject: Merging upstream version 1.68.2+dfsg1. Signed-off-by: Daniel Baumann --- .../ui/structs-enums/codegen-tag-static-padding.rs | 59 ---------------------- 1 file changed, 59 deletions(-) delete mode 100644 src/test/ui/structs-enums/codegen-tag-static-padding.rs (limited to 'src/test/ui/structs-enums/codegen-tag-static-padding.rs') diff --git a/src/test/ui/structs-enums/codegen-tag-static-padding.rs b/src/test/ui/structs-enums/codegen-tag-static-padding.rs deleted file mode 100644 index 8aa087c01..000000000 --- a/src/test/ui/structs-enums/codegen-tag-static-padding.rs +++ /dev/null @@ -1,59 +0,0 @@ -// run-pass -#![allow(non_upper_case_globals)] - -// Issue #13186 - -// For simplicity of explanations assuming code is compiled for x86_64 -// Linux ABI. - -// Size of TestOption is 16, and alignment of TestOption is 8. -// Size of u8 is 1, and alignment of u8 is 1. -// So size of Request is 24, and alignment of Request must be 8: -// the maximum alignment of its fields. -// Last 7 bytes of Request struct are not occupied by any fields. - - - -enum TestOption { - TestNone, - TestSome(T), -} - -pub struct Request { - foo: TestOption, - bar: u8, -} - -fn default_instance() -> &'static Request { - static instance: Request = Request { - // LLVM does not allow to specify alignment of expressions, thus - // alignment of `foo` in constant is 1, not 8. - foo: TestOption::TestNone, - bar: 17, - // Space after last field is not occupied by any data, but it is - // reserved to make struct aligned properly. If compiler does - // not insert padding after last field when emitting constant, - // size of struct may be not equal to size of struct, and - // compiler crashes in internal assertion check. - }; - &instance -} - -fn non_default_instance() -> &'static Request { - static instance: Request = Request { - foo: TestOption::TestSome(0x1020304050607080), - bar: 19, - }; - &instance -} - -pub fn main() { - match default_instance() { - &Request { foo: TestOption::TestNone, bar: 17 } => {}, - _ => panic!(), - }; - match non_default_instance() { - &Request { foo: TestOption::TestSome(0x1020304050607080), bar: 19 } => {}, - _ => panic!(), - }; -} -- cgit v1.2.3