Commit f95095e9 authored by Sanjay Patel's avatar Sanjay Patel
Browse files

[AArch64] add tests for nnan/ninf/undef FP simplifications; NFC

parent b5b21812

llvm/test/CodeGen/AArch64/fp-const-fold.ll

+128 −0
Original line number Diff line number Diff line
@@ -73,4 +73,132 @@ define double @constant_fold_fma_nan(double* %p) { 
  ret double %r

}



define double @fdiv_nnan_nan_op0(double %x) {

; CHECK-LABEL: fdiv_nnan_nan_op0:

; CHECK:       // %bb.0:

; CHECK-NEXT:    mov x8, #-2251799813685248

; CHECK-NEXT:    fmov d1, x8

; CHECK-NEXT:    fdiv d0, d1, d0

; CHECK-NEXT:    ret

  %r = fdiv nnan double 0xfff8000000000000, %x

  ret double %r

}



define double @fmul_nnan_nan_op1(double %x) {

; CHECK-LABEL: fmul_nnan_nan_op1:

; CHECK:       // %bb.0:

; CHECK-NEXT:    mov x8, #9221120237041090560

; CHECK-NEXT:    fmov d1, x8

; CHECK-NEXT:    fmul d0, d0, d1

; CHECK-NEXT:    ret

  %r = fmul nnan double %x, 0x7ff8000000000000

  ret double %r

}



define double @fdiv_ninf_nan_op0(double %x) {

; CHECK-LABEL: fdiv_ninf_nan_op0:

; CHECK:       // %bb.0:

; CHECK-NEXT:    mov x8, #-2251799813685248

; CHECK-NEXT:    fmov d1, x8

; CHECK-NEXT:    fdiv d0, d1, d0

; CHECK-NEXT:    ret

  %r = fdiv ninf double 0xfff8000000000000, %x

  ret double %r

}



define double @fadd_ninf_nan_op1(double %x) {

; CHECK-LABEL: fadd_ninf_nan_op1:

; CHECK:       // %bb.0:

; CHECK-NEXT:    mov x8, #9221120237041090560

; CHECK-NEXT:    fmov d1, x8

; CHECK-NEXT:    fadd d0, d0, d1

; CHECK-NEXT:    ret

  %r = fadd ninf double %x, 0x7ff8000000000000

  ret double %r

}



define double @fdiv_ninf_inf_op0(double %x) {

; CHECK-LABEL: fdiv_ninf_inf_op0:

; CHECK:       // %bb.0:

; CHECK-NEXT:    mov x8, #9218868437227405312

; CHECK-NEXT:    fmov d1, x8

; CHECK-NEXT:    fdiv d0, d1, d0

; CHECK-NEXT:    ret

  %r = fdiv ninf double 0x7ff0000000000000, %x

  ret double %r

}



define double @fadd_ninf_inf_op1(double %x) {

; CHECK-LABEL: fadd_ninf_inf_op1:

; CHECK:       // %bb.0:

; CHECK-NEXT:    mov x8, #-4503599627370496

; CHECK-NEXT:    fmov d1, x8

; CHECK-NEXT:    fadd d0, d0, d1

; CHECK-NEXT:    ret

  %r = fadd ninf double %x, 0xfff0000000000000

  ret double %r

}



define double @fsub_nnan_inf_op0(double %x) {

; CHECK-LABEL: fsub_nnan_inf_op0:

; CHECK:       // %bb.0:

; CHECK-NEXT:    mov x8, #9218868437227405312

; CHECK-NEXT:    fmov d1, x8

; CHECK-NEXT:    fsub d0, d1, d0

; CHECK-NEXT:    ret

  %r = fsub nnan double 0x7ff0000000000000, %x

  ret double %r

}



define double @fmul_nnan_inf_op1(double %x) {

; CHECK-LABEL: fmul_nnan_inf_op1:

; CHECK:       // %bb.0:

; CHECK-NEXT:    mov x8, #-4503599627370496

; CHECK-NEXT:    fmov d1, x8

; CHECK-NEXT:    fmul d0, d0, d1

; CHECK-NEXT:    ret

  %r = fmul nnan double %x, 0xfff0000000000000

  ret double %r

}



define double @fdiv_nnan_undef_op0(double %x) {

; CHECK-LABEL: fdiv_nnan_undef_op0:

; CHECK:       // %bb.0:

; CHECK-NEXT:    mov x8, #9221120237041090560

; CHECK-NEXT:    fmov d0, x8

; CHECK-NEXT:    ret

  %r = fdiv nnan double undef, %x

  ret double %r

}



define double @fdiv_nnan_undef_op1(double %x) {

; CHECK-LABEL: fdiv_nnan_undef_op1:

; CHECK:       // %bb.0:

; CHECK-NEXT:    mov x8, #9221120237041090560

; CHECK-NEXT:    fmov d0, x8

; CHECK-NEXT:    ret

  %r = fdiv nnan double %x, undef

  ret double %r

}



define double @fdiv_ninf_undef_op0(double %x) {

; CHECK-LABEL: fdiv_ninf_undef_op0:

; CHECK:       // %bb.0:

; CHECK-NEXT:    mov x8, #9221120237041090560

; CHECK-NEXT:    fmov d0, x8

; CHECK-NEXT:    ret

  %r = fdiv ninf double undef, %x

  ret double %r

}



define double @fdiv_ninf_undef_op1(double %x) {

; CHECK-LABEL: fdiv_ninf_undef_op1:

; CHECK:       // %bb.0:

; CHECK-NEXT:    mov x8, #9221120237041090560

; CHECK-NEXT:    fmov d0, x8

; CHECK-NEXT:    ret

  %r = fdiv ninf double %x, undef

  ret double %r

}



declare double @llvm.fma.f64(double, double, double)