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 // RUN: %clang_cc1 -std=c++11 -triple x86_64-pc-linux -emit-llvm %s -o - | FileCheck %s --check-prefix=LINUX
   4 // RUN: %clang_cc1 -std=c++11 -triple x86_64-apple-macos -emit-llvm %s -o - | FileCheck %s --check-prefix=DARWIN
   5
   6 struct Foo {
   7   Foo();
   8   Foo(const Foo &o);
   9   ~Foo();
  10   int x;
  11 };
  12 int __attribute__((target("default"))) bar(Foo o) { return o.x; }
  13 int __attribute__((target("sse4.2"))) bar(Foo o) { return o.x + 1; }
  14 int __attribute__((target("arch=ivybridge"))) bar(Foo o) { return o.x + 2; }
  15
  16 void usage() {
  17   Foo f;
  18   bar(f);
  19 }
  20
  21 // DARWIN-NOT: inalloca(
  22 // LINUX-NOT: inalloca(
  23
  24 // WINDOWS: define dso_local noundef i32 @"?bar@@YAHUFoo@@@Z"(ptr inalloca(<{ %struct.Foo }>) %0)
  25 // WINDOWS: %[[O:[0-9a-zA-Z]+]] = getelementptr inbounds <{ %struct.Foo }>, ptr %0, i32 0, i32 0
  26 // WINDOWS: %[[X:[0-9a-zA-Z]+]] = getelementptr inbounds %struct.Foo, ptr %[[O]], i32 0, i32 0
  27 // WINDOWS: %[[LOAD:[0-9a-zA-Z]+]] = load i32, ptr %[[X]]
  28 // WINDOWS: ret i32 %[[LOAD]]
  29
  30 // WINDOWS: define dso_local noundef i32 @"?bar@@YAHUFoo@@@Z.sse4.2"(ptr inalloca(<{ %struct.Foo }>) %0)
  31 // WINDOWS: %[[O:[0-9a-zA-Z]+]] = getelementptr inbounds <{ %struct.Foo }>, ptr %0, i32 0, i32 0
  32 // WINDOWS: %[[X:[0-9a-zA-Z]+]] = getelementptr inbounds %struct.Foo, ptr %[[O]], i32 0, i32 0
  33 // WINDOWS: %[[LOAD:[0-9a-zA-Z]+]] = load i32, ptr %[[X]]
  34 // WINDOWS: %[[ADD:[0-9a-zA-Z]+]] = add nsw i32 %[[LOAD]], 1
  35 // WINDOWS: ret i32 %[[ADD]]
  36
  37 // WINDOWS: define dso_local noundef i32 @"?bar@@YAHUFoo@@@Z.arch_ivybridge"(ptr inalloca(<{ %struct.Foo }>) %0)
  38 // WINDOWS: %[[O:[0-9a-zA-Z]+]] = getelementptr inbounds <{ %struct.Foo }>, ptr %0, i32 0, i32 0
  39 // WINDOWS: %[[X:[0-9a-zA-Z]+]] = getelementptr inbounds %struct.Foo, ptr %[[O]], i32 0, i32 0
  40 // WINDOWS: %[[LOAD:[0-9a-zA-Z]+]] = load i32, ptr %[[X]]
  41 // WINDOWS: %[[ADD:[0-9a-zA-Z]+]] = add nsw i32 %[[LOAD]], 2
  42 // WINDOWS: ret i32 %[[ADD]]
  43
  44 // WINDOWS: define dso_local void @"?usage@@YAXXZ"()
  45 // WINDOWS: %[[F:[0-9a-zA-Z]+]] = alloca %struct.Foo
  46 // WINDOWS: %[[ARGMEM:[0-9a-zA-Z]+]] = alloca inalloca <{ %struct.Foo }>
  47 // WINDOWS: %[[CALL:[0-9a-zA-Z]+]] = call noundef i32 @"?bar@@YAHUFoo@@@Z.resolver"(ptr inalloca(<{ %struct.Foo }>) %[[ARGMEM]])
  48
  49 // WINDOWS: define weak_odr dso_local i32 @"?bar@@YAHUFoo@@@Z.resolver"(ptr %0)
  50 // WINDOWS: %[[RET:[0-9a-zA-Z]+]] = musttail call i32 @"?bar@@YAHUFoo@@@Z.arch_ivybridge"(ptr %0)
  51 // WINDOWS-NEXT: ret i32 %[[RET]]
  52 // WINDOWS: %[[RET:[0-9a-zA-Z]+]] = musttail call i32 @"?bar@@YAHUFoo@@@Z.sse4.2"(ptr %0)
  53 // WINDOWS-NEXT: ret i32 %[[RET]]
  54 // WINDOWS: %[[RET:[0-9a-zA-Z]+]] = musttail call i32 @"?bar@@YAHUFoo@@@Z"(ptr %0)
  55 // WINDOWS-NEXT: ret i32 %[[RET]]
  56
  57
  58 // WINDOWS64: define dso_local noundef i32 @"?bar@@YAHUFoo@@@Z"(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: ret i32 %[[LOAD]]
  62
  63 // WINDOWS64: define dso_local noundef i32 @"?bar@@YAHUFoo@@@Z.sse4.2"(ptr noundef %[[O:[0-9a-zA-Z]+]])
  64 // WINDOWS64: %[[X:[0-9a-zA-Z]+]] = getelementptr inbounds %struct.Foo, ptr %[[O]], i32 0, i32 0
  65 // WINDOWS64: %[[LOAD:[0-9a-zA-Z]+]] = load i32, ptr %[[X]]
  66 // WINDOWS64: %[[ADD:[0-9a-zA-Z]+]] = add nsw i32 %[[LOAD]], 1
  67 // WINDOWS64: ret i32 %[[ADD]]
  68
  69 // WINDOWS64: define dso_local noundef i32 @"?bar@@YAHUFoo@@@Z.arch_ivybridge"(ptr noundef %[[O:[0-9a-zA-Z]+]])
  70 // WINDOWS64: %[[X:[0-9a-zA-Z]+]] = getelementptr inbounds %struct.Foo, ptr %[[O]], i32 0, i32 0
  71 // WINDOWS64: %[[LOAD:[0-9a-zA-Z]+]] = load i32, ptr %[[X]]
  72 // WINDOWS64: %[[ADD:[0-9a-zA-Z]+]] = add nsw i32 %[[LOAD]], 2
  73 // WINDOWS64: ret i32 %[[ADD]]
  74
  75 // WINDOWS64: define dso_local void @"?usage@@YAXXZ"()
  76 // WINDOWS64: %[[F:[0-9a-zA-Z]+]] = alloca %struct.Foo
  77 // WINDOWS64: %[[ARG:[0-9a-zA-Z.]+]] = alloca %struct.Foo
  78 // WINDOWS64: %[[CALL:[0-9a-zA-Z]+]] = call noundef i32 @"?bar@@YAHUFoo@@@Z.resolver"(ptr noundef %[[ARG]])
  79
  80 // WINDOWS64: define weak_odr dso_local i32 @"?bar@@YAHUFoo@@@Z.resolver"(ptr %0)
  81 // WINDOWS64: %[[RET:[0-9a-zA-Z]+]] = musttail call i32 @"?bar@@YAHUFoo@@@Z.arch_ivybridge"(ptr %0)
  82 // WINDOWS64-NEXT: ret i32 %[[RET]]
  83 // WINDOWS64: %[[RET:[0-9a-zA-Z]+]] = musttail call i32 @"?bar@@YAHUFoo@@@Z.sse4.2"(ptr %0)
  84 // WINDOWS64-NEXT: ret i32 %[[RET]]
  85 // WINDOWS64: %[[RET:[0-9a-zA-Z]+]] = musttail call i32 @"?bar@@YAHUFoo@@@Z"(ptr %0)
  86 // WINDOWS64-NEXT: ret i32 %[[RET]]