clang/test/Frontend/fixed_point_shift_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 short _Accum sa_const1 = 1.0hk << 2;
   5 // CHECK-DAG: @sa_const1 = {{.*}}global i16 512
   6 short _Accum sa_const2 = 0.5hk << 2;
   7 // CHECK-DAG: @sa_const2 = {{.*}}global i16 256
   8 short _Accum sa_const3 = 10.0hk >> 3;
   9 // CHECK-DAG: @sa_const3 = {{.*}}global i16 160
  10 short _Accum sa_const4 = 0.0546875hk << 8;
  11 // CHECK-DAG: @sa_const4 = {{.*}}global i16 1792
  12 short _Accum sa_const5 = -1.0hk << 2;
  13 // CHECK-DAG: @sa_const5 = {{.*}}global i16 -512
  14 short _Accum sa_const6 = -255.0hk >> 8;
  15 // CHECK-DAG: @sa_const6 = {{.*}}global i16 -128
  16
  17 _Fract f_const1 = -1.0r >> 5;
  18 // CHECK-DAG: @f_const1 = {{.*}}global i16 -1024
  19 _Fract f_const2 = 0.0052490234375r >> 3;
  20 // CHECK-DAG: @f_const2 = {{.*}}global i16 21
  21 _Fract f_const3 = -0.0001r << 5;
  22 // CHECK-DAG: @f_const3 = {{.*}}global i16 -96
  23 _Fract f_const4 = -0.75r >> 15;
  24 // CHECK-DAG: @f_const4 = {{.*}}global i16 -1
  25 _Fract f_const5 = 0.078216552734375r << 3;
  26 // CHECK-DAG: @f_const5 = {{.*}}global i16 20504
  27
  28 unsigned _Fract uf_const1 = 0.375ur >> 13;
  29 // SIGNED-DAG:   @uf_const1 = {{.*}}global i16 3
  30 // UNSIGNED-DAG: @uf_const1 = {{.*}}global i16 1
  31 unsigned _Fract uf_const2 = 0.0546875ur << 3;
  32 // SIGNED-DAG:   @uf_const2 = {{.*}}global i16 28672
  33 // UNSIGNED-DAG: @uf_const2 = {{.*}}global i16 14336
  34
  35 _Sat short _Accum ssa_const1 = (_Sat short _Accum)31.875hk << 4;
  36 // CHECK-DAG: @ssa_const1 = {{.*}}global i16 32767
  37 _Sat short _Accum ssa_const2 = (_Sat short _Accum) - 1.0hk << 8;
  38 // CHECK-DAG: @ssa_const2 = {{.*}}global i16 -32768
  39 _Sat short _Accum ssa_const3 = (_Sat short _Accum)128.0hk << 8;
  40 // CHECK-DAG: @ssa_const3 = {{.*}}global i16 32767
  41 _Sat short _Fract ssf_const1 = (_Sat short _Fract) - 0.5hr << 3;
  42 // CHECK-DAG: @ssf_const1 = {{.*}}global i8 -128
  43
  44 _Sat unsigned _Fract suf_const1 = (_Sat unsigned _Fract)0.5r << 1;
  45 // SIGNED-DAG:   @suf_const1 = {{.*}}global i16 -1
  46 // UNSIGNED-DAG: @suf_const1 = {{.*}}global i16 32767
  47 _Sat unsigned _Fract suf_const2 = (_Sat unsigned _Fract)0.25r << 1;
  48 // SIGNED-DAG:   @suf_const2 = {{.*}}global i16 -32768
  49 // UNSIGNED-DAG: @suf_const2 = {{.*}}global i16 16384
  50 _Sat unsigned _Accum sua_const2 = (_Sat unsigned _Accum)128.0uk << 10;
  51 // SIGNED-DAG:   @sua_const2 = {{.*}}global i32 -1
  52 // UNSIGNED-DAG: @sua_const2 = {{.*}}global i32 2147483647