1 // RUN: %clang_cc1 -no-opaque-pointers -std=c++11 -triple i686-windows-msvc -emit-llvm %s -o - | FileCheck %s --check-prefix=WINDOWS
2 // RUN: %clang_cc1 -no-opaque-pointers -std=c++11 -triple x86_64-windows-msvc -emit-llvm %s -o - | FileCheck %s --check-prefix=WINDOWS64
3 
4 struct Foo {
5   Foo();
6   Foo(const Foo &o);
7   ~Foo();
8   int x;
9 };
10 int __attribute__((target("default"))) bar(Foo o) { return o.x; }
11 int __attribute__((target("sse4.2"))) bar(Foo o) { return o.x + 1; }
12 int __attribute__((target("arch=ivybridge"))) bar(Foo o) { return o.x + 2; }
13 
14 void usage() {
15   Foo f;
16   bar(f);
17 }
18 
19 // WINDOWS: define dso_local noundef i32 @"?bar@@YAHUFoo@@@Z"(<{ %struct.Foo }>* inalloca(<{ %struct.Foo }>) %0)
20 // WINDOWS: %[[O:[0-9a-zA-Z]+]] = getelementptr inbounds <{ %struct.Foo }>, <{ %struct.Foo }>* %0, i32 0, i32 0
21 // WINDOWS: %[[X:[0-9a-zA-Z]+]] = getelementptr inbounds %struct.Foo, %struct.Foo* %[[O]], i32 0, i32 0
22 // WINDOWS: %[[LOAD:[0-9a-zA-Z]+]] = load i32, i32* %[[X]]
23 // WINDOWS: ret i32 %[[LOAD]]
24 
25 // WINDOWS: define dso_local noundef i32 @"?bar@@YAHUFoo@@@Z.sse4.2"(<{ %struct.Foo }>* inalloca(<{ %struct.Foo }>) %0)
26 // WINDOWS: %[[O:[0-9a-zA-Z]+]] = getelementptr inbounds <{ %struct.Foo }>, <{ %struct.Foo }>* %0, i32 0, i32 0
27 // WINDOWS: %[[X:[0-9a-zA-Z]+]] = getelementptr inbounds %struct.Foo, %struct.Foo* %[[O]], i32 0, i32 0
28 // WINDOWS: %[[LOAD:[0-9a-zA-Z]+]] = load i32, i32* %[[X]]
29 // WINDOWS: %[[ADD:[0-9a-zA-Z]+]] = add nsw i32 %[[LOAD]], 1
30 // WINDOWS: ret i32 %[[ADD]]
31 
32 // WINDOWS: define dso_local noundef i32 @"?bar@@YAHUFoo@@@Z.arch_ivybridge"(<{ %struct.Foo }>* inalloca(<{ %struct.Foo }>) %0)
33 // WINDOWS: %[[O:[0-9a-zA-Z]+]] = getelementptr inbounds <{ %struct.Foo }>, <{ %struct.Foo }>* %0, i32 0, i32 0
34 // WINDOWS: %[[X:[0-9a-zA-Z]+]] = getelementptr inbounds %struct.Foo, %struct.Foo* %[[O]], i32 0, i32 0
35 // WINDOWS: %[[LOAD:[0-9a-zA-Z]+]] = load i32, i32* %[[X]]
36 // WINDOWS: %[[ADD:[0-9a-zA-Z]+]] = add nsw i32 %[[LOAD]], 2
37 // WINDOWS: ret i32 %[[ADD]]
38 
39 // WINDOWS: define dso_local void @"?usage@@YAXXZ"()
40 // WINDOWS: %[[F:[0-9a-zA-Z]+]] = alloca %struct.Foo
41 // WINDOWS: %[[ARGMEM:[0-9a-zA-Z]+]] = alloca inalloca <{ %struct.Foo }>
42 // WINDOWS: %[[CALL:[0-9a-zA-Z]+]] = call noundef i32 @"?bar@@YAHUFoo@@@Z.resolver"(<{ %struct.Foo }>* inalloca(<{ %struct.Foo }>) %[[ARGMEM]])
43 
44 // WINDOWS: define weak_odr dso_local i32 @"?bar@@YAHUFoo@@@Z.resolver"(<{ %struct.Foo }>* %0)
45 // WINDOWS: %[[RET:[0-9a-zA-Z]+]] = musttail call i32 @"?bar@@YAHUFoo@@@Z.arch_ivybridge"(<{ %struct.Foo }>* %0)
46 // WINDOWS-NEXT: ret i32 %[[RET]]
47 // WINDOWS: %[[RET:[0-9a-zA-Z]+]] = musttail call i32 @"?bar@@YAHUFoo@@@Z.sse4.2"(<{ %struct.Foo }>* %0)
48 // WINDOWS-NEXT: ret i32 %[[RET]]
49 // WINDOWS: %[[RET:[0-9a-zA-Z]+]] = musttail call i32 @"?bar@@YAHUFoo@@@Z"(<{ %struct.Foo }>* %0)
50 // WINDOWS-NEXT: ret i32 %[[RET]]
51 
52 
53 // WINDOWS64: define dso_local noundef i32 @"?bar@@YAHUFoo@@@Z"(%struct.Foo* noundef %[[O:[0-9a-zA-Z]+]])
54 // WINDOWS64: %[[X:[0-9a-zA-Z]+]] = getelementptr inbounds %struct.Foo, %struct.Foo* %[[O]], i32 0, i32 0
55 // WINDOWS64: %[[LOAD:[0-9a-zA-Z]+]] = load i32, i32* %[[X]]
56 // WINDOWS64: ret i32 %[[LOAD]]
57 
58 // WINDOWS64: define dso_local noundef i32 @"?bar@@YAHUFoo@@@Z.sse4.2"(%struct.Foo* noundef %[[O:[0-9a-zA-Z]+]])
59 // WINDOWS64: %[[X:[0-9a-zA-Z]+]] = getelementptr inbounds %struct.Foo, %struct.Foo* %[[O]], i32 0, i32 0
60 // WINDOWS64: %[[LOAD:[0-9a-zA-Z]+]] = load i32, i32* %[[X]]
61 // WINDOWS64: %[[ADD:[0-9a-zA-Z]+]] = add nsw i32 %[[LOAD]], 1
62 // WINDOWS64: ret i32 %[[ADD]]
63 
64 // WINDOWS64: define dso_local noundef i32 @"?bar@@YAHUFoo@@@Z.arch_ivybridge"(%struct.Foo* noundef %[[O:[0-9a-zA-Z]+]])
65 // WINDOWS64: %[[X:[0-9a-zA-Z]+]] = getelementptr inbounds %struct.Foo, %struct.Foo* %[[O]], i32 0, i32 0
66 // WINDOWS64: %[[LOAD:[0-9a-zA-Z]+]] = load i32, i32* %[[X]]
67 // WINDOWS64: %[[ADD:[0-9a-zA-Z]+]] = add nsw i32 %[[LOAD]], 2
68 // WINDOWS64: ret i32 %[[ADD]]
69 
70 // WINDOWS64: define dso_local void @"?usage@@YAXXZ"()
71 // WINDOWS64: %[[F:[0-9a-zA-Z]+]] = alloca %struct.Foo
72 // WINDOWS64: %[[ARG:[0-9a-zA-Z.]+]] = alloca %struct.Foo
73 // WINDOWS64: %[[CALL:[0-9a-zA-Z]+]] = call noundef i32 @"?bar@@YAHUFoo@@@Z.resolver"(%struct.Foo* noundef %[[ARG]])
74 
75 // WINDOWS64: define weak_odr dso_local i32 @"?bar@@YAHUFoo@@@Z.resolver"(%struct.Foo* %0)
76 // WINDOWS64: %[[RET:[0-9a-zA-Z]+]] = musttail call i32 @"?bar@@YAHUFoo@@@Z.arch_ivybridge"(%struct.Foo* %0)
77 // WINDOWS64-NEXT: ret i32 %[[RET]]
78 // WINDOWS64: %[[RET:[0-9a-zA-Z]+]] = musttail call i32 @"?bar@@YAHUFoo@@@Z.sse4.2"(%struct.Foo* %0)
79 // WINDOWS64-NEXT: ret i32 %[[RET]]
80 // WINDOWS64: %[[RET:[0-9a-zA-Z]+]] = musttail call i32 @"?bar@@YAHUFoo@@@Z"(%struct.Foo* %0)
81 // WINDOWS64-NEXT: ret i32 %[[RET]]
82