xref: /llvm-project/llvm/test/CodeGen/RISCV/bfloat-isnan.ll (revision 32597685574e594d745df1bb15dc0e626bd60566)
1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2
2; RUN: llc -mtriple=riscv32 -mattr=+zfbfmin -verify-machineinstrs \
3; RUN:   -target-abi ilp32f < %s | FileCheck %s
4; RUN: llc -mtriple=riscv64 -mattr=+zfbfmin -verify-machineinstrs \
5; RUN:   -target-abi lp64f < %s | FileCheck %s
6
7define zeroext i1 @bfloat_is_nan(bfloat %a) nounwind {
8; CHECK-LABEL: bfloat_is_nan:
9; CHECK:       # %bb.0:
10; CHECK-NEXT:    fcvt.s.bf16 fa5, fa0
11; CHECK-NEXT:    feq.s a0, fa5, fa5
12; CHECK-NEXT:    xori a0, a0, 1
13; CHECK-NEXT:    ret
14  %1 = fcmp uno bfloat %a, 0.000000e+00
15  ret i1 %1
16}
17
18define zeroext i1 @bfloat_not_nan(bfloat %a) nounwind {
19; CHECK-LABEL: bfloat_not_nan:
20; CHECK:       # %bb.0:
21; CHECK-NEXT:    fcvt.s.bf16 fa5, fa0
22; CHECK-NEXT:    feq.s a0, fa5, fa5
23; CHECK-NEXT:    ret
24  %1 = fcmp ord bfloat %a, 0.000000e+00
25  ret i1 %1
26}
27