clang/test/CodeGenCXX/attr-target-mv-inalloca.cpp

   1 // RUN: %clang_cc1 -std=c++11 -triple i686-windows-msvc -emit-llvm %s -o - | FileCheck %s --check-prefix=WINDOWS
   2 // RUN: %clang_cc1 -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"(ptr inalloca(<{ %struct.Foo }>) %0)
  20 // WINDOWS: %[[O:[0-9a-zA-Z]+]] = getelementptr inbounds <{ %struct.Foo }>, ptr %0, i32 0, i32 0
  21 // WINDOWS: %[[X:[0-9a-zA-Z]+]] = getelementptr inbounds %struct.Foo, ptr %[[O]], i32 0, i32 0
  22 // WINDOWS: %[[LOAD:[0-9a-zA-Z]+]] = load i32, ptr %[[X]]
  23 // WINDOWS: ret i32 %[[LOAD]]
  24
  25 // WINDOWS: define dso_local noundef i32 @"?bar@@YAHUFoo@@@Z.sse4.2"(ptr inalloca(<{ %struct.Foo }>) %0)
  26 // WINDOWS: %[[O:[0-9a-zA-Z]+]] = getelementptr inbounds <{ %struct.Foo }>, ptr %0, i32 0, i32 0
  27 // WINDOWS: %[[X:[0-9a-zA-Z]+]] = getelementptr inbounds %struct.Foo, ptr %[[O]], i32 0, i32 0
  28 // WINDOWS: %[[LOAD:[0-9a-zA-Z]+]] = load i32, ptr %[[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"(ptr inalloca(<{ %struct.Foo }>) %0)
  33 // WINDOWS: %[[O:[0-9a-zA-Z]+]] = getelementptr inbounds <{ %struct.Foo }>, ptr %0, i32 0, i32 0
  34 // WINDOWS: %[[X:[0-9a-zA-Z]+]] = getelementptr inbounds %struct.Foo, ptr %[[O]], i32 0, i32 0
  35 // WINDOWS: %[[LOAD:[0-9a-zA-Z]+]] = load i32, ptr %[[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"(ptr inalloca(<{ %struct.Foo }>) %[[ARGMEM]])
  43
  44 // WINDOWS: define weak_odr dso_local i32 @"?bar@@YAHUFoo@@@Z.resolver"(ptr %0)
  45 // WINDOWS: %[[RET:[0-9a-zA-Z]+]] = musttail call i32 @"?bar@@YAHUFoo@@@Z.arch_ivybridge"(ptr %0)
  46 // WINDOWS-NEXT: ret i32 %[[RET]]
  47 // WINDOWS: %[[RET:[0-9a-zA-Z]+]] = musttail call i32 @"?bar@@YAHUFoo@@@Z.sse4.2"(ptr %0)
  48 // WINDOWS-NEXT: ret i32 %[[RET]]
  49 // WINDOWS: %[[RET:[0-9a-zA-Z]+]] = musttail call i32 @"?bar@@YAHUFoo@@@Z"(ptr %0)
  50 // WINDOWS-NEXT: ret i32 %[[RET]]
  51
  52
  53 // WINDOWS64: define dso_local noundef i32 @"?bar@@YAHUFoo@@@Z"(ptr noundef %[[O:[0-9a-zA-Z]+]])
  54 // WINDOWS64: %[[X:[0-9a-zA-Z]+]] = getelementptr inbounds %struct.Foo, ptr %[[O]], i32 0, i32 0
  55 // WINDOWS64: %[[LOAD:[0-9a-zA-Z]+]] = load i32, ptr %[[X]]
  56 // WINDOWS64: ret i32 %[[LOAD]]
  57
  58 // WINDOWS64: define dso_local noundef i32 @"?bar@@YAHUFoo@@@Z.sse4.2"(ptr noundef %[[O:[0-9a-zA-Z]+]])
  59 // WINDOWS64: %[[X:[0-9a-zA-Z]+]] = getelementptr inbounds %struct.Foo, ptr %[[O]], i32 0, i32 0
  60 // WINDOWS64: %[[LOAD:[0-9a-zA-Z]+]] = load i32, ptr %[[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"(ptr noundef %[[O:[0-9a-zA-Z]+]])
  65 // WINDOWS64: %[[X:[0-9a-zA-Z]+]] = getelementptr inbounds %struct.Foo, ptr %[[O]], i32 0, i32 0
  66 // WINDOWS64: %[[LOAD:[0-9a-zA-Z]+]] = load i32, ptr %[[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"(ptr noundef %[[ARG]])
  74
  75 // WINDOWS64: define weak_odr dso_local i32 @"?bar@@YAHUFoo@@@Z.resolver"(ptr %0)
  76 // WINDOWS64: %[[RET:[0-9a-zA-Z]+]] = musttail call i32 @"?bar@@YAHUFoo@@@Z.arch_ivybridge"(ptr %0)
  77 // WINDOWS64-NEXT: ret i32 %[[RET]]
  78 // WINDOWS64: %[[RET:[0-9a-zA-Z]+]] = musttail call i32 @"?bar@@YAHUFoo@@@Z.sse4.2"(ptr %0)
  79 // WINDOWS64-NEXT: ret i32 %[[RET]]
  80 // WINDOWS64: %[[RET:[0-9a-zA-Z]+]] = musttail call i32 @"?bar@@YAHUFoo@@@Z"(ptr %0)
  81 // WINDOWS64-NEXT: ret i32 %[[RET]]