clang/test/Frontend/fixed_point_mul_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 // Multiplication between different fixed point types
   5 short _Accum sa_const = 2.0hk * 2.0hk;
   6 // CHECK-DAG: @sa_const  = {{.*}}global i16 512, align 2
   7 _Accum a_const = 3.0hk * 2.0k;
   8 // CHECK-DAG: @a_const   = {{.*}}global i32 196608, align 4
   9 long _Accum la_const = 4.0hk * 2.0lk;
  10 // CHECK-DAG: @la_const  = {{.*}}global i64 17179869184, align 8
  11 short _Accum sa_const2 = 0.5hr * 2.0hk;
  12 // CHECK-DAG: @sa_const2  = {{.*}}global i16 128, align 2
  13 short _Accum sa_const3 = 0.5r * 3.0hk;
  14 // CHECK-DAG: @sa_const3  = {{.*}}global i16 192, align 2
  15 short _Accum sa_const4 = 0.5lr * 4.0hk;
  16 // CHECK-DAG: @sa_const4  = {{.*}}global i16 256, align 2
  17
  18 // Unsigned multiplication
  19 unsigned short _Accum usa_const = 1.0uhk * 2.0uhk;
  20 // SIGNED-DAG:   @usa_const = {{.*}}global i16 512, align 2
  21 // UNSIGNED-DAG: @usa_const = {{.*}}global i16 256, align 2
  22
  23 // Unsigned * signed
  24 short _Accum sa_const5 = 20.0uhk * 3.0hk;
  25 // CHECK-DAG: @sa_const5 = {{.*}}global i16 7680, align 2
  26
  27 // Multiplication with negative number
  28 short _Accum sa_const6 = 0.5hr * (-2.0hk);
  29 // CHECK-DAG: @sa_const6 = {{.*}}global i16 -128, align 2
  30
  31 // Int multiplication
  32 unsigned short _Accum usa_const2 = 5 * 10.5uhk;
  33 // SIGNED-DAG:   @usa_const2 = {{.*}}global i16 13440, align 2
  34 // UNSIGNED-DAG: @usa_const2 = {{.*}}global i16 6720, align 2
  35 short _Accum sa_const7 = 3 * (-0.5hk);
  36 // CHECK-DAG: @sa_const7 = {{.*}}global i16 -192, align 2
  37 short _Accum sa_const8 = 100 * (-2.0hk);
  38 // CHECK-DAG: @sa_const8 = {{.*}}global i16 -25600, align 2
  39 long _Fract lf_const = -0.25lr * 3;
  40 // CHECK-DAG: @lf_const  = {{.*}}global i32 -1610612736, align 4
  41
  42 // Saturated multiplication
  43 _Sat short _Accum sat_sa_const = (_Sat short _Accum)128.0hk * 3.0hk;
  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 -32768, align 2
  50 _Sat unsigned short _Accum sat_usa_const2 = (_Sat unsigned short _Accum)128.0uhk * 30;
  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