debuginfo: Fix type description generic enum discriminants.

src/test/debuginfo/generic-enum-with-different-disr-sizes.rs

@@ -0,0 +1,91 @@
+// Copyright 2013-2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// ignore-tidy-linelength
+// min-lldb-version: 310
+
+// compile-flags:-g
+
+// === GDB TESTS ===================================================================================
+// gdb-command:run
+
+// gdb-command:print eight_bytes1
+// gdb-check:$1 = {{RUST$ENUM$DISR = Variant1, __0 = 100}, {RUST$ENUM$DISR = Variant1, __0 = 100}}
+// gdb-command:print four_bytes1
+// gdb-check:$2 = {{RUST$ENUM$DISR = Variant1, __0 = 101}, {RUST$ENUM$DISR = Variant1, __0 = 101}}
+// gdb-command:print two_bytes1
+// gdb-check:$3 = {{RUST$ENUM$DISR = Variant1, __0 = 102}, {RUST$ENUM$DISR = Variant1, __0 = 102}}
+// gdb-command:print one_byte1
+// gdb-check:$4 = {{RUST$ENUM$DISR = Variant1, __0 = 65 'A'}, {RUST$ENUM$DISR = Variant1, __0 = 65 'A'}}
+
+// gdb-command:print eight_bytes2
+// gdb-check:$5 = {{RUST$ENUM$DISR = Variant2, __0 = 100}, {RUST$ENUM$DISR = Variant2, __0 = 100}}
+// gdb-command:print four_bytes2
+// gdb-check:$6 = {{RUST$ENUM$DISR = Variant2, __0 = 101}, {RUST$ENUM$DISR = Variant2, __0 = 101}}
+// gdb-command:print two_bytes2
+// gdb-check:$7 = {{RUST$ENUM$DISR = Variant2, __0 = 102}, {RUST$ENUM$DISR = Variant2, __0 = 102}}
+// gdb-command:print one_byte2
+// gdb-check:$8 = {{RUST$ENUM$DISR = Variant2, __0 = 65 'A'}, {RUST$ENUM$DISR = Variant2, __0 = 65 'A'}}
+
+// gdb-command:continue
+
+// === LLDB TESTS ==================================================================================
+// lldb-command:run
+
+// lldb-command:print eight_bytes1
+// lldb-check:[...]$0 = Variant1(100)
+// lldb-command:print four_bytes1
+// lldb-check:[...]$1 = Variant1(101)
+// lldb-command:print two_bytes1
+// lldb-check:[...]$2 = Variant1(102)
+// lldb-command:print one_byte1
+// lldb-check:[...]$3 = Variant1('A')
+
+// lldb-command:print eight_bytes2
+// lldb-check:[...]$4 = Variant2(100)
+// lldb-command:print four_bytes2
+// lldb-check:[...]$5 = Variant2(101)
+// lldb-command:print two_bytes2
+// lldb-check:[...]$6 = Variant2(102)
+// lldb-command:print one_byte2
+// lldb-check:[...]$7 = Variant2('A')
+
+// lldb-command:continue
+
+#![allow(unused_variables)]
+#![allow(dead_code)]
+#![omit_gdb_pretty_printer_section]
+
+// This test case makes sure that we get correct type descriptions for the enum
+// discriminant of different instantiations of the same generic enum type where,
+// dependending on the generic type parameter(s), the discriminant has a
+// different size in memory.
+
+enum Enum<T> {
+    Variant1(T),
+    Variant2(T)
+}
+
+fn main() {
+    // These are ordered for descending size on purpose
+    let eight_bytes1 = Enum::Variant1(100.0f64);
+    let four_bytes1 = Enum::Variant1(101i32);
+    let two_bytes1 = Enum::Variant1(102i16);
+    let one_byte1 = Enum::Variant1(65u8);
+
+    let eight_bytes2 = Enum::Variant2(100.0f64);
+    let four_bytes2 = Enum::Variant2(101i32);
+    let two_bytes2 = Enum::Variant2(102i16);
+    let one_byte2 = Enum::Variant2(65u8);
+
+    zzz(); // #break
+}
+
+fn zzz() { () }