Add lowering test

Author: badumbatish

clang/test/CIR/Lowering/builtin_isfpclass.c

@@ -0,0 +1,125 @@
+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-llvm %s -o %t.ll
+// RUN: FileCheck --input-file=%t.ll %s
+
+int finite(double);
+
+// CHECK: define {{.*}}@test_is_finite
+void test_is_finite(__fp16 *H, float F, double D, long double LD) {
+    volatile int res;
+    res = __builtin_isinf(*H);
+    // CHECK: call i1 @llvm.is.fpclass.f16(half %{{.*}}, i32 516)
+    res = __builtin_isinf(F);
+    // CHECK: call i1 @llvm.is.fpclass.f32(float %{{.*}}, i32 516)
+    res = __builtin_isinf(D);
+    // CHECK: call i1 @llvm.is.fpclass.f64(double %{{.*}}, i32 516)
+    res = __builtin_isinf(LD);
+    // CHECK: call i1 @llvm.is.fpclass.f80(x86_fp80 %{{.*}}, i32 516)
+
+    res = __builtin_isfinite(*H);
+    // CHECK: call i1 @llvm.is.fpclass.f16(half %{{.*}}, i32 504)
+    res = __builtin_isfinite(F);
+    // CHECK: call i1 @llvm.is.fpclass.f32(float %{{.*}}, i32 504)
+    res = finite(D);
+    // CHECK: call i32 @finite(double %{{.*}})
+
+    res = __builtin_isnormal(*H);
+    // CHECK: call i1 @llvm.is.fpclass.f16(half %{{.*}}, i32 264)
+    res = __builtin_isnormal(F);
+    // CHECK: call i1 @llvm.is.fpclass.f32(float %{{.*}}, i32 264)
+
+    res = __builtin_issubnormal(F);
+    // CHECK: call i1 @llvm.is.fpclass.f32(float %{{.*}}, i32 144)
+    res = __builtin_iszero(F);
+    // CHECK: call i1 @llvm.is.fpclass.f32(float %{{.*}}, i32 96)
+    res = __builtin_issignaling(F);
+    // CHECK: call i1 @llvm.is.fpclass.f32(float %{{.*}}, i32 1)
+}
+
+_Bool check_isfpclass_finite(float x) {
+  return __builtin_isfpclass(x, 504 /*Finite*/);
+}
+
+// CHECK: define {{.*}}@check_isfpclass_finite
+// CHECK: call i1 @llvm.is.fpclass.f32(float %{{.*}}, i32 504)
+
+_Bool check_isfpclass_nan_f32(float x) {
+  return __builtin_isfpclass(x, 3 /*NaN*/);
+}
+
+// CHECK: define {{.*}}@check_isfpclass_nan_f32
+// CHECK: call i1 @llvm.is.fpclass.f32(float %{{.*}}, i32 3)
+
+_Bool check_isfpclass_snan_f64(double x) {
+  return __builtin_isfpclass(x, 1 /*SNaN*/);
+}
+
+// CHECK: define {{.*}}@check_isfpclass_snan_f64
+// CHECK: call i1 @llvm.is.fpclass.f64(double %{{.*}}, i32 1)
+
+
+_Bool check_isfpclass_zero_f16(_Float16 x) {
+  return __builtin_isfpclass(x, 96 /*Zero*/);
+}
+
+// CHECK: define {{.*}}@check_isfpclass_zero_f16
+// CHECK: call i1 @llvm.is.fpclass.f16(half %{{.*}}, i32 96)
+
+// Update when we support FP pragma in functions.
+
+// _Bool check_isfpclass_finite_strict(float x) {
+// #pragma STDC FENV_ACCESS ON
+//   return __builtin_isfpclass(x, 504 /*Finite*/);
+// }
+// 
+// _Bool check_isfpclass_nan_f32_strict(float x) {
+// #pragma STDC FENV_ACCESS ON
+//   return __builtin_isfpclass(x, 3 /*NaN*/);
+// }
+// 
+// _Bool check_isfpclass_snan_f64_strict(double x) {
+// #pragma STDC FENV_ACCESS ON
+//   return __builtin_isfpclass(x, 1 /*NaN*/);
+// }
+// 
+// _Bool check_isfpclass_zero_f16_strict(_Float16 x) {
+// #pragma STDC FENV_ACCESS ON
+//   return __builtin_isfpclass(x, 96 /*Zero*/);
+// }
+// 
+// _Bool check_isnan(float x) {
+// #pragma STDC FENV_ACCESS ON
+//   return __builtin_isnan(x);
+// }
+// 
+// _Bool check_isinf(float x) {
+// #pragma STDC FENV_ACCESS ON
+//   return __builtin_isinf(x);
+// }
+// 
+// _Bool check_isfinite(float x) {
+// #pragma STDC FENV_ACCESS ON
+//   return __builtin_isfinite(x);
+// }
+// 
+// _Bool check_isnormal(float x) {
+// #pragma STDC FENV_ACCESS ON
+//   return __builtin_isnormal(x);
+// }
+// 
+// typedef float __attribute__((ext_vector_type(4))) float4;
+// typedef double __attribute__((ext_vector_type(4))) double4;
+// typedef int __attribute__((ext_vector_type(4))) int4;
+// typedef long __attribute__((ext_vector_type(4))) long4;
+// 
+// int4 check_isfpclass_nan_v4f32(float4 x) {
+//   return __builtin_isfpclass(x, 3 /*NaN*/);
+// }
+// 
+// int4 check_isfpclass_nan_strict_v4f32(float4 x) {
+// #pragma STDC FENV_ACCESS ON
+//   return __builtin_isfpclass(x, 3 /*NaN*/);
+// }
+// 
+// long4 check_isfpclass_nan_v4f64(double4 x) {
+//   return __builtin_isfpclass(x, 3 /*NaN*/);
+// }