clang/test/CodeGenOpenCL/amdgcn-automatic-variable.cl

// RUN: %clang_cc1 -O0 -cl-std=CL1.2 -triple amdgcn---amdgizcl -emit-llvm %s -o - | FileCheck -check-prefixes=CHECK,CL12 %s
// RUN: %clang_cc1 -O0 -cl-std=CL2.0 -triple amdgcn---amdgizcl -emit-llvm %s -o - | FileCheck -check-prefixes=CHECK,CL20 %s

// CL12-LABEL: define{{.*}} void @func1(ptr addrspace(5) noundef %x)
// CL20-LABEL: define{{.*}} void @func1(ptr noundef %x)
void func1(int *x) {
  // CL12: %[[x_addr:.*]] = alloca ptr addrspace(5){{.*}}addrspace(5)
  // CL12: store ptr addrspace(5) %x, ptr addrspace(5) %[[x_addr]]
  // CL12: %[[r0:.*]] = load ptr addrspace(5), ptr addrspace(5) %[[x_addr]]
  // CL12: store i32 1, ptr addrspace(5) %[[r0]]
  // CL20: %[[x_addr:.*]] = alloca ptr{{.*}}addrspace(5)
  // CL20: store ptr %x, ptr addrspace(5) %[[x_addr]]
  // CL20: %[[r0:.*]] = load ptr, ptr addrspace(5) %[[x_addr]]
  // CL20: store i32 1, ptr %[[r0]]
  *x = 1;
}

// CHECK-LABEL: define{{.*}} void @func2()
void func2(void) {
  // CHECK: %lv1 = alloca i32, align 4, addrspace(5)
  // CHECK: %lv2 = alloca i32, align 4, addrspace(5)
  // CHECK: %la = alloca [100 x i32], align 4, addrspace(5)
  // CL12: %lp1 = alloca ptr addrspace(5), align 4, addrspace(5)
  // CL12: %lp2 = alloca ptr addrspace(5), align 4, addrspace(5)
  // CL20: %lp1 = alloca ptr, align 8, addrspace(5)
  // CL20: %lp2 = alloca ptr, align 8, addrspace(5)
  // CHECK: %lvc = alloca i32, align 4, addrspace(5)

  // CHECK: store i32 1, ptr addrspace(5) %lv1
  int lv1;
  lv1 = 1;
  // CHECK: store i32 2, ptr addrspace(5) %lv2
  int lv2 = 2;

  // CHECK: %[[arrayidx:.*]] = getelementptr inbounds [100 x i32], ptr addrspace(5) %la, i64 0, i64 0
  // CHECK: store i32 3, ptr addrspace(5) %[[arrayidx]], align 4
  int la[100];
  la[0] = 3;

  // CL12: store ptr addrspace(5) %lv1, ptr addrspace(5) %lp1, align 4
  // CL20: %[[r0:.*]] = addrspacecast ptr addrspace(5) %lv1 to ptr
  // CL20: store ptr %[[r0]], ptr addrspace(5) %lp1, align 8
  int *lp1 = &lv1;

  // CHECK: %[[arraydecay:.*]] = getelementptr inbounds [100 x i32], ptr addrspace(5) %la, i64 0, i64 0
  // CL12: store ptr addrspace(5) %[[arraydecay]], ptr addrspace(5) %lp2, align 4
  // CL20: %[[r1:.*]] = addrspacecast ptr addrspace(5) %[[arraydecay]] to ptr
  // CL20: store ptr %[[r1]], ptr addrspace(5) %lp2, align 8
  int *lp2 = la;

  // CL12: call void @func1(ptr addrspace(5) noundef %lv1)
  // CL20: %[[r2:.*]] = addrspacecast ptr addrspace(5) %lv1 to ptr
  // CL20: call void @func1(ptr noundef %[[r2]])
  func1(&lv1);

  // CHECK: store i32 4, ptr addrspace(5) %lvc
  // CHECK: store i32 4, ptr addrspace(5) %lv1
  const int lvc = 4;
  lv1 = lvc;
}

// CHECK-LABEL: define{{.*}} void @func3()
// CHECK: %a = alloca [16 x [1 x float]], align 4, addrspace(5)
// CHECK: call void @llvm.memset.p5.i64(ptr addrspace(5) align 4 %a, i8 0, i64 64, i1 false)
void func3(void) {
  float a[16][1] = {{0.}};
}