1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2 ; RUN: llc -mtriple=arm64 -fp-contract=fast -o - %s | FileCheck %s
5 ; Make sure we don't try to fold an fneg into +0.0, creating an illegal constant
6 ; -0.0. It's also good, though not essential, that we don't resort to a litpool.
7 define double @test_fms_fold(double %a, double %b) {
8 ; CHECK-LABEL: test_fms_fold:
10 ; CHECK-NEXT: movi d2, #0000000000000000
11 ; CHECK-NEXT: fmul d1, d1, d2
12 ; CHECK-NEXT: fnmsub d0, d0, d2, d1
14 %mul = fmul double %a, 0.000000e+00
15 %mul1 = fmul double %b, 0.000000e+00
16 %sub = fsub double %mul, %mul1