From 9a2402566102dd54c66f55a62da93e1c7d93f761 Mon Sep 17 00:00:00 2001
From: Richard Diamond <wichard@vitalitystudios.com>
Date: Tue, 15 Sep 2015 16:22:16 -0500
Subject: Avoid loading the whole gdb debug scripts section.

This is so LLVM isn't forced to load every byte of it. Also sets the alignment of
the load. Adds a test for the debug script section.
---
 src/test/codegen/adjustments.rs           |  2 ++
 src/test/codegen/coercions.rs             |  2 ++
 src/test/codegen/extern-functions.rs      |  1 +
 src/test/codegen/function-arguments.rs    |  1 +
 src/test/codegen/gdb_debug_script_load.rs | 25 +++++++++++++++++++++++++
 src/test/codegen/link_section.rs          |  2 ++
 src/test/codegen/loads.rs                 |  2 ++
 src/test/codegen/stores.rs                |  2 ++
 8 files changed, 37 insertions(+)
 create mode 100644 src/test/codegen/gdb_debug_script_load.rs

(limited to 'src/test/codegen')

diff --git a/src/test/codegen/adjustments.rs b/src/test/codegen/adjustments.rs
index d9a7acf1129..a61fa84398e 100644
--- a/src/test/codegen/adjustments.rs
+++ b/src/test/codegen/adjustments.rs
@@ -10,6 +10,8 @@
 
 // compile-flags: -C no-prepopulate-passes
 
+#![crate_type = "lib"]
+
 // Hack to get the correct size for the length part in slices
 // CHECK: @helper([[USIZE:i[0-9]+]])
 #[no_mangle]
diff --git a/src/test/codegen/coercions.rs b/src/test/codegen/coercions.rs
index 2a136d7024d..c8c9f5b407c 100644
--- a/src/test/codegen/coercions.rs
+++ b/src/test/codegen/coercions.rs
@@ -10,6 +10,8 @@
 
 // compile-flags: -C no-prepopulate-passes
 
+#![crate_type = "lib"]
+
 static X: i32 = 5;
 
 // CHECK-LABEL: @raw_ptr_to_raw_ptr_noop
diff --git a/src/test/codegen/extern-functions.rs b/src/test/codegen/extern-functions.rs
index 4c30b5ce02f..ff9d54e67e4 100644
--- a/src/test/codegen/extern-functions.rs
+++ b/src/test/codegen/extern-functions.rs
@@ -10,6 +10,7 @@
 
 // compile-flags: -C no-prepopulate-passes
 
+#![crate_type = "lib"]
 #![feature(unwind_attributes)]
 
 extern {
diff --git a/src/test/codegen/function-arguments.rs b/src/test/codegen/function-arguments.rs
index 7706c97380b..90ced88324e 100644
--- a/src/test/codegen/function-arguments.rs
+++ b/src/test/codegen/function-arguments.rs
@@ -10,6 +10,7 @@
 
 // compile-flags: -C no-prepopulate-passes
 
+#![crate_type = "lib"]
 #![feature(allocator)]
 
 pub struct S {
diff --git a/src/test/codegen/gdb_debug_script_load.rs b/src/test/codegen/gdb_debug_script_load.rs
new file mode 100644
index 00000000000..efaca29752b
--- /dev/null
+++ b/src/test/codegen/gdb_debug_script_load.rs
@@ -0,0 +1,25 @@
+// Copyright 2015 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
+// ignore-windows
+// ignore-macos
+
+// compile-flags: -g -C no-prepopulate-passes
+
+#![feature(start)]
+
+// CHECK-LABEL: @main
+// CHECK: load volatile i8, i8* getelementptr inbounds ([[B:\[[0-9]* x i8\]]], [[B]]* @__rustc_debug_gdb_scripts_section__, i32 0, i32 0), align 1
+
+#[start]
+fn start(_: isize, _: *const *const u8) -> isize {
+    return 0;
+}
diff --git a/src/test/codegen/link_section.rs b/src/test/codegen/link_section.rs
index 99b43552b0d..5ad3854c05c 100644
--- a/src/test/codegen/link_section.rs
+++ b/src/test/codegen/link_section.rs
@@ -10,6 +10,8 @@
 
 // compile-flags: -C no-prepopulate-passes
 
+#![crate_type = "lib"]
+
 // CHECK: @VAR1 = constant i32 1, section ".test_one"
 #[no_mangle]
 #[link_section = ".test_one"]
diff --git a/src/test/codegen/loads.rs b/src/test/codegen/loads.rs
index b51da69fef2..21f23b6ea18 100644
--- a/src/test/codegen/loads.rs
+++ b/src/test/codegen/loads.rs
@@ -10,6 +10,8 @@
 
 // compile-flags: -C no-prepopulate-passes
 
+#![crate_type = "lib"]
+
 pub struct Bytes {
   a: u8,
   b: u8,
diff --git a/src/test/codegen/stores.rs b/src/test/codegen/stores.rs
index 72862ea8b6f..5d2d47e1bf3 100644
--- a/src/test/codegen/stores.rs
+++ b/src/test/codegen/stores.rs
@@ -10,6 +10,8 @@
 
 // compile-flags: -C no-prepopulate-passes
 
+#![crate_type = "lib"]
+
 pub struct Bytes {
   a: u8,
   b: u8,
-- 
cgit 1.4.1-3-g733a5