clang/test/Frontend/fixed_point_same_fbits.c

   1 // RUN: %clang -ffixed-point -S -emit-llvm -o - %s | FileCheck %s -check-prefix=DEFAULT
   2 // RUN: %clang_cc1 -ffixed-point -fpadding-on-unsigned-fixed-point -S -emit-llvm -o - %s | FileCheck %s -check-prefix=SAME
   3
   4 /* The scale for unsigned fixed point types should be the same as that of signed
   5  * fixed point types when -fsame-fbits is enabled. */
   6
   7 void func(void) {
   8   unsigned short _Accum u_short_accum = 0.5uhk;
   9   unsigned _Accum u_accum = 0.5uk;
  10   unsigned long _Accum u_long_accum = 0.5ulk;
  11   unsigned short _Fract u_short_fract = 0.5uhr;
  12   unsigned _Fract u_fract = 0.5ur;
  13   unsigned long _Fract u_long_fract = 0.5ulr;
  14
  15 // DEFAULT: store i16 128, ptr {{.*}}, align 2
  16 // DEFAULT: store i32 32768, ptr {{.*}}, align 4
  17 // DEFAULT: store i64 2147483648, ptr {{.*}}, align 8
  18 // DEFAULT: store i8  -128, ptr {{.*}}, align 1
  19 // DEFAULT: store i16 -32768, ptr {{.*}}, align 2
  20 // DEFAULT: store i32 -2147483648, ptr {{.*}}, align 4
  21
  22 // SAME: store i16 64, ptr {{.*}}, align 2
  23 // SAME: store i32 16384, ptr {{.*}}, align 4
  24 // SAME: store i64 1073741824, ptr {{.*}}, align 8
  25 // SAME: store i8  64, ptr {{.*}}, align 1
  26 // SAME: store i16 16384, ptr {{.*}}, align 2
  27 // SAME: store i32 1073741824, ptr {{.*}}, align 4
  28 }