clang/test/Frontend/fixed_point_add_const.c

   1 // RUN: %clang_cc1 -ffixed-point -triple x86_64-unknown-linux-gnu -S -emit-llvm %s -o - | FileCheck %s --check-prefixes=CHECK,SIGNED
   2 // RUN: %clang_cc1 -ffixed-point -triple x86_64-unknown-linux-gnu -fpadding-on-unsigned-fixed-point -S -emit-llvm %s -o - | FileCheck %s --check-prefixes=CHECK,UNSIGNED
   3
   4 // Addition between different fixed point types
   5 short _Accum sa_const = 1.0hk + 2.0hk;
   6 // CHECK-DAG: @sa_const  = {{.*}}global i16 384, align 2
   7 _Accum a_const = 1.0hk + 2.0k;
   8 // CHECK-DAG: @a_const   = {{.*}}global i32 98304, align 4
   9 long _Accum la_const = 1.0hk + 2.0lk;
  10 // CHECK-DAG: @la_const  = {{.*}}global i64 6442450944, align 8
  11 short _Accum sa_const2 = 0.5hr + 2.0hk;
  12 // CHECK-DAG: @sa_const2  = {{.*}}global i16 320, align 2
  13 short _Accum sa_const3 = 0.5r + 2.0hk;
  14 // CHECK-DAG: @sa_const3  = {{.*}}global i16 320, align 2
  15 short _Accum sa_const4 = 0.5lr + 2.0hk;
  16 // CHECK-DAG: @sa_const4  = {{.*}}global i16 320, align 2
  17
  18 // Unsigned addition
  19 unsigned short _Accum usa_const = 1.0uhk + 2.0uhk;
  20 // SIGNED-DAG:   @usa_const = {{.*}}global i16 768, align 2
  21 // UNSIGNED-DAG: @usa_const = {{.*}}global i16 384, align 2
  22
  23 // Unsigned + signed
  24 short _Accum sa_const5 = 1.0uhk + 2.0hk;
  25 // CHECK-DAG: @sa_const5 = {{.*}}global i16 384, align 2
  26
  27 // Addition with negative number
  28 short _Accum sa_const6 = 0.5hr + (-2.0hk);
  29 // CHECK-DAG: @sa_const6 = {{.*}}global i16 -192, align 2
  30
  31 // Int addition
  32 unsigned short _Accum usa_const2 = 2 + 0.5uhk;
  33 // SIGNED-DAG:   @usa_const2 = {{.*}}global i16 640, align 2
  34 // UNSIGNED-DAG: @usa_const2 = {{.*}}global i16 320, align 2
  35 short _Accum sa_const7 = 2 + (-0.5hk);
  36 // CHECK-DAG: @sa_const7 = {{.*}}global i16 192, align 2
  37 short _Accum sa_const8 = 257 + (-2.0hk);
  38 // CHECK-DAG: @sa_const8 = {{.*}}global i16 32640, align 2
  39 long _Fract lf_const = -0.5lr + 1;
  40 // CHECK-DAG: @lf_const  = {{.*}}global i32 1073741824, align 4
  41
  42 // Saturated addition
  43 _Sat short _Accum sat_sa_const = (_Sat short _Accum)128.0hk + 128.0hk;
  44 // CHECK-DAG: @sat_sa_const = {{.*}}global i16 32767, align 2
  45 _Sat unsigned short _Accum sat_usa_const = (_Sat unsigned short _Accum)128.0uhk + 128.0uhk;
  46 // SIGNED-DAG:   @sat_usa_const = {{.*}}global i16 -1, align 2
  47 // UNSIGNED-DAG: @sat_usa_const = {{.*}}global i16 32767, align 2
  48 _Sat short _Accum sat_sa_const2 = (_Sat short _Accum)128.0hk + 128;
  49 // CHECK-DAG: @sat_sa_const2 = {{.*}}global i16 32767, align 2
  50 _Sat unsigned short _Accum sat_usa_const2 = (_Sat unsigned short _Accum)128.0uhk + 128;
  51 // SIGNED-DAG:   @sat_usa_const2 = {{.*}}global i16 -1, align 2
  52 // UNSIGNED-DAG: @sat_usa_const2 = {{.*}}global i16 32767, align 2
  53 _Sat unsigned short _Accum sat_usa_const3 = (_Sat unsigned short _Accum)0.5uhk + (-2);
  54 // CHECK-DAG:   @sat_usa_const3 = {{.*}}global i16 0, align 2