xref: /llvm-project/llvm/test/CodeGen/RISCV/float-isnan.ll (revision fe558efe71c12a665d4e1b5e7638baaacfe84cf7)
1910ca0e4SSam Elliott; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2910ca0e4SSam Elliott; RUN: llc -mtriple=riscv32 -mattr=+f -target-abi ilp32f -verify-machineinstrs \
384bacb18SShao-Ce SUN; RUN:   < %s | FileCheck %s
4910ca0e4SSam Elliott; RUN: llc -mtriple=riscv64 -mattr=+f -target-abi lp64f -verify-machineinstrs \
584bacb18SShao-Ce SUN; RUN:   < %s | FileCheck %s
6*fe558efeSShao-Ce SUN; RUN: llc -mtriple=riscv32 -mattr=+zfinx -target-abi ilp32 -verify-machineinstrs \
7*fe558efeSShao-Ce SUN; RUN:   < %s | FileCheck --check-prefix=CHECKZFINX %s
8*fe558efeSShao-Ce SUN; RUN: llc -mtriple=riscv64 -mattr=+zfinx -target-abi lp64 -verify-machineinstrs \
9*fe558efeSShao-Ce SUN; RUN:   < %s | FileCheck --check-prefix=CHECKZFINX %s
10910ca0e4SSam Elliott
11910ca0e4SSam Elliottdefine zeroext i1 @float_is_nan(float %a) nounwind {
1284bacb18SShao-Ce SUN; CHECK-LABEL: float_is_nan:
1384bacb18SShao-Ce SUN; CHECK:       # %bb.0:
1484bacb18SShao-Ce SUN; CHECK-NEXT:    feq.s a0, fa0, fa0
1584bacb18SShao-Ce SUN; CHECK-NEXT:    xori a0, a0, 1
1684bacb18SShao-Ce SUN; CHECK-NEXT:    ret
17*fe558efeSShao-Ce SUN;
18*fe558efeSShao-Ce SUN; CHECKZFINX-LABEL: float_is_nan:
19*fe558efeSShao-Ce SUN; CHECKZFINX:       # %bb.0:
20*fe558efeSShao-Ce SUN; CHECKZFINX-NEXT:    feq.s a0, a0, a0
21*fe558efeSShao-Ce SUN; CHECKZFINX-NEXT:    xori a0, a0, 1
22*fe558efeSShao-Ce SUN; CHECKZFINX-NEXT:    ret
23910ca0e4SSam Elliott  %1 = fcmp uno float %a, 0.000000e+00
24910ca0e4SSam Elliott  ret i1 %1
25910ca0e4SSam Elliott}
26910ca0e4SSam Elliott
27910ca0e4SSam Elliottdefine zeroext i1 @float_not_nan(float %a) nounwind {
2884bacb18SShao-Ce SUN; CHECK-LABEL: float_not_nan:
2984bacb18SShao-Ce SUN; CHECK:       # %bb.0:
3084bacb18SShao-Ce SUN; CHECK-NEXT:    feq.s a0, fa0, fa0
3184bacb18SShao-Ce SUN; CHECK-NEXT:    ret
32*fe558efeSShao-Ce SUN;
33*fe558efeSShao-Ce SUN; CHECKZFINX-LABEL: float_not_nan:
34*fe558efeSShao-Ce SUN; CHECKZFINX:       # %bb.0:
35*fe558efeSShao-Ce SUN; CHECKZFINX-NEXT:    feq.s a0, a0, a0
36*fe558efeSShao-Ce SUN; CHECKZFINX-NEXT:    ret
37910ca0e4SSam Elliott  %1 = fcmp ord float %a, 0.000000e+00
38910ca0e4SSam Elliott  ret i1 %1
39910ca0e4SSam Elliott}
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