xref: /llvm-project/clang/test/Frontend/fixed_point_mul_const.c (revision c5de4dd1eab00df76c1a68c5f397304ceacb71f2)
1*c5de4dd1SFangrui Song // RUN: %clang_cc1 -ffixed-point -triple x86_64-unknown-linux-gnu -emit-llvm %s -o - | FileCheck %s --check-prefixes=CHECK,SIGNED
2*c5de4dd1SFangrui Song // RUN: %clang_cc1 -ffixed-point -triple x86_64-unknown-linux-gnu -fpadding-on-unsigned-fixed-point -emit-llvm %s -o - | FileCheck %s --check-prefixes=CHECK,UNSIGNED
344ebc2c8SBevin Hansson 
444ebc2c8SBevin Hansson // Multiplication between different fixed point types
544ebc2c8SBevin Hansson short _Accum sa_const = 2.0hk * 2.0hk;
644ebc2c8SBevin Hansson // CHECK-DAG: @sa_const  = {{.*}}global i16 512, align 2
744ebc2c8SBevin Hansson _Accum a_const = 3.0hk * 2.0k;
844ebc2c8SBevin Hansson // CHECK-DAG: @a_const   = {{.*}}global i32 196608, align 4
944ebc2c8SBevin Hansson long _Accum la_const = 4.0hk * 2.0lk;
1044ebc2c8SBevin Hansson // CHECK-DAG: @la_const  = {{.*}}global i64 17179869184, align 8
1144ebc2c8SBevin Hansson short _Accum sa_const2 = 0.5hr * 2.0hk;
1244ebc2c8SBevin Hansson // CHECK-DAG: @sa_const2  = {{.*}}global i16 128, align 2
1344ebc2c8SBevin Hansson short _Accum sa_const3 = 0.5r * 3.0hk;
1444ebc2c8SBevin Hansson // CHECK-DAG: @sa_const3  = {{.*}}global i16 192, align 2
1544ebc2c8SBevin Hansson short _Accum sa_const4 = 0.5lr * 4.0hk;
1644ebc2c8SBevin Hansson // CHECK-DAG: @sa_const4  = {{.*}}global i16 256, align 2
1744ebc2c8SBevin Hansson 
1844ebc2c8SBevin Hansson // Unsigned multiplication
1944ebc2c8SBevin Hansson unsigned short _Accum usa_const = 1.0uhk * 2.0uhk;
2044ebc2c8SBevin Hansson // SIGNED-DAG:   @usa_const = {{.*}}global i16 512, align 2
2144ebc2c8SBevin Hansson // UNSIGNED-DAG: @usa_const = {{.*}}global i16 256, align 2
2244ebc2c8SBevin Hansson 
2344ebc2c8SBevin Hansson // Unsigned * signed
2444ebc2c8SBevin Hansson short _Accum sa_const5 = 20.0uhk * 3.0hk;
2544ebc2c8SBevin Hansson // CHECK-DAG: @sa_const5 = {{.*}}global i16 7680, align 2
2644ebc2c8SBevin Hansson 
2744ebc2c8SBevin Hansson // Multiplication with negative number
2844ebc2c8SBevin Hansson short _Accum sa_const6 = 0.5hr * (-2.0hk);
2944ebc2c8SBevin Hansson // CHECK-DAG: @sa_const6 = {{.*}}global i16 -128, align 2
3044ebc2c8SBevin Hansson 
3144ebc2c8SBevin Hansson // Int multiplication
3244ebc2c8SBevin Hansson unsigned short _Accum usa_const2 = 5 * 10.5uhk;
3344ebc2c8SBevin Hansson // SIGNED-DAG:   @usa_const2 = {{.*}}global i16 13440, align 2
3444ebc2c8SBevin Hansson // UNSIGNED-DAG: @usa_const2 = {{.*}}global i16 6720, align 2
3544ebc2c8SBevin Hansson short _Accum sa_const7 = 3 * (-0.5hk);
3644ebc2c8SBevin Hansson // CHECK-DAG: @sa_const7 = {{.*}}global i16 -192, align 2
3744ebc2c8SBevin Hansson short _Accum sa_const8 = 100 * (-2.0hk);
3844ebc2c8SBevin Hansson // CHECK-DAG: @sa_const8 = {{.*}}global i16 -25600, align 2
3944ebc2c8SBevin Hansson long _Fract lf_const = -0.25lr * 3;
4044ebc2c8SBevin Hansson // CHECK-DAG: @lf_const  = {{.*}}global i32 -1610612736, align 4
4144ebc2c8SBevin Hansson 
4244ebc2c8SBevin Hansson // Saturated multiplication
4344ebc2c8SBevin Hansson _Sat short _Accum sat_sa_const = (_Sat short _Accum)128.0hk * 3.0hk;
4444ebc2c8SBevin Hansson // CHECK-DAG: @sat_sa_const = {{.*}}global i16 32767, align 2
4544ebc2c8SBevin Hansson _Sat unsigned short _Accum sat_usa_const = (_Sat unsigned short _Accum)128.0uhk * 128.0uhk;
4644ebc2c8SBevin Hansson // SIGNED-DAG:   @sat_usa_const = {{.*}}global i16 -1, align 2
4744ebc2c8SBevin Hansson // UNSIGNED-DAG: @sat_usa_const = {{.*}}global i16 32767, align 2
4844ebc2c8SBevin Hansson _Sat short _Accum sat_sa_const2 = (_Sat short _Accum)128.0hk * -128;
4944ebc2c8SBevin Hansson // CHECK-DAG: @sat_sa_const2 = {{.*}}global i16 -32768, align 2
5044ebc2c8SBevin Hansson _Sat unsigned short _Accum sat_usa_const2 = (_Sat unsigned short _Accum)128.0uhk * 30;
5144ebc2c8SBevin Hansson // SIGNED-DAG:   @sat_usa_const2 = {{.*}}global i16 -1, align 2
5244ebc2c8SBevin Hansson // UNSIGNED-DAG: @sat_usa_const2 = {{.*}}global i16 32767, align 2
5344ebc2c8SBevin Hansson _Sat unsigned short _Accum sat_usa_const3 = (_Sat unsigned short _Accum)0.5uhk * (-2);
5444ebc2c8SBevin Hansson // CHECK-DAG:   @sat_usa_const3 = {{.*}}global i16 0, align 2
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