builtin-nan-exception.c
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// RUN: %clang -target aarch64 -emit-llvm -S %s -o - | FileCheck %s
// RUN: %clang -target lanai -emit-llvm -S %s -o - | FileCheck %s
// RUN: %clang -target riscv64 -emit-llvm -S %s -o - | FileCheck %s
// RUN: %clang -target x86_64 -emit-llvm -S %s -o - | FileCheck %s
// Run a variety of targets to ensure there's no target-based difference.
// An SNaN with no payload is formed by setting the bit after the
// the quiet bit (MSB of the significand).
// CHECK: float 0x7FF8000000000000, float 0x7FF4000000000000
float f[] = {
__builtin_nanf(""),
__builtin_nansf(""),
};
// Doubles are created and converted to floats.
// Converting (truncating) to float quiets the NaN (sets the MSB
// of the significand) and raises the APFloat invalidOp exception
// but that should not cause a compilation error in the default
// (ignore FP exceptions) mode.
// CHECK: float 0x7FF8000000000000, float 0x7FFC000000000000
float converted_to_float[] = {
__builtin_nan(""),
__builtin_nans(""),
};
// CHECK: double 0x7FF8000000000000, double 0x7FF4000000000000
double d[] = {
__builtin_nan(""),
__builtin_nans(""),
};