clang/test/CodeGenHIP/printf.cpp

   1 // REQUIRES: amdgpu-registered-target
   2 // RUN: %clang_cc1 -triple amdgcn-amd-amdhsa -x hip -emit-llvm -fcuda-is-device \
   3 // RUN:   -o - %s | FileCheck --enable-var-scope %s
   4
   5 #define __device__ __attribute__((device))
   6
   7 extern "C" __device__ int printf(const char *format, ...);
   8
   9 __device__ int foo1() {
  10   const char *s = "hello world";
  11   return printf("%.*f %*.*s %p\n", 8, 3.14159, 8, 4, s, s);
  12 }
  13
  14 // CHECK-LABEL: @_Z4foo1v()
  15 // CHECK: [[BEGIN:%.*]]   = call i64 @__ockl_printf_begin(i64 0)
  16 // CHECK: [[STRLEN1:%.*]] = phi i64 [ %{{[^,]*}}, %{{[^ ]*}} ], [ 0, %{{[^ ]*}} ]
  17 // CHECK: [[APPEND1:%.*]] = call i64 @__ockl_printf_append_string_n(i64 [[BEGIN]], {{.*}}, i64 [[STRLEN1]], i32 0)
  18 // CHECK: [[APPEND2:%.*]] = call i64 @__ockl_printf_append_args(i64 [[APPEND1]], i32 1, i64 8, i64 0, i64 0, i64 0, i64 0, i64 0, i64 0, i32 0)
  19 // CHECK: [[APPEND3:%.*]] = call i64 @__ockl_printf_append_args(i64 [[APPEND2]], i32 1, i64 4614256650576692846, i64 0, i64 0, i64 0, i64 0, i64 0, i64 0, i32 0)
  20 // CHECK: [[APPEND4:%.*]] = call i64 @__ockl_printf_append_args(i64 [[APPEND3]], i32 1, i64 8, i64 0, i64 0, i64 0, i64 0, i64 0, i64 0, i32 0)
  21 // CHECK: [[APPEND5:%.*]] = call i64 @__ockl_printf_append_args(i64 [[APPEND4]], i32 1, i64 4, i64 0, i64 0, i64 0, i64 0, i64 0, i64 0, i32 0)
  22 // CHECK: [[STRLEN2:%.*]] = phi i64 [ %{{[^,]*}}, %{{[^ ]*}} ], [ 0, %{{[^ ]*}} ]
  23 // CHECK: [[APPEND6:%.*]] = call i64 @__ockl_printf_append_string_n(i64 [[APPEND5]], {{.*}}, i64 [[STRLEN2]], i32 0)
  24 // CHECK: [[PTR2INT:%.*]] = ptrtoint ptr %{{.*}} to i64
  25 // CHECK: [[APPEND7:%.*]] = call i64 @__ockl_printf_append_args(i64 [[APPEND6]], i32 1, i64 [[PTR2INT]], i64 0, i64 0, i64 0, i64 0, i64 0, i64 0, i32 1)
  26 // CHECK: [[RETURN:%.*]]  = trunc i64 [[APPEND7]] to i32
  27 // CHECK: ret i32 [[RETURN]]
  28
  29 __device__ char *dstr;
  30
  31 __device__ int foo2() {
  32   return printf("%s %p\n", dstr, dstr);
  33 }
  34
  35 // CHECK-LABEL: @_Z4foo2v()
  36 // CHECK: [[BEGIN:%.*]]   = call i64 @__ockl_printf_begin(i64 0)
  37 // CHECK: [[STRLEN1:%.*]] = phi i64 [ %{{[^,]*}}, %{{[^ ]*}} ], [ 0, %{{[^ ]*}} ]
  38 // CHECK: [[APPEND1:%.*]] = call i64 @__ockl_printf_append_string_n(i64 [[BEGIN]], {{.*}}, i64 [[STRLEN1]], i32 0)
  39 // CHECK: [[STRLEN2:%.*]] = phi i64 [ %{{[^,]*}}, %{{[^ ]*}} ], [ 0, %{{[^ ]*}} ]
  40 // CHECK: [[APPEND2:%.*]] = call i64 @__ockl_printf_append_string_n(i64 [[APPEND1]], {{.*}}, i64 [[STRLEN2]], i32 0)
  41 // CHECK: [[PTR2INT:%.*]] = ptrtoint ptr %{{.*}} to i64
  42 // CHECK: [[APPEND3:%.*]] = call i64 @__ockl_printf_append_args(i64 [[APPEND2]], i32 1, i64 [[PTR2INT]], i64 0, i64 0, i64 0, i64 0, i64 0, i64 0, i32 1)
  43 // CHECK: [[RETURN:%.*]]  = trunc i64 [[APPEND3]] to i32
  44 // CHECK: ret i32 [[RETURN]]