| ; RUN: llc -mtriple=arm64 -fp-contract=fast -o - %s | FileCheck %s | |
| ; Make sure we don't try to fold an fneg into +0.0, creating an illegal constant | |
| ; -0.0. It's also good, though not essential, that we don't resort to a litpool. | |
| define double @test_fms_fold(double %a, double %b) { | |
| ; CHECK-LABEL: test_fms_fold: | |
| ; CHECK: fmov {{d[0-9]+}}, xzr | |
| ; CHECK: ret | |
| %mul = fmul double %a, 0.000000e+00 | |
| %mul1 = fmul double %b, 0.000000e+00 | |
| %sub = fsub double %mul, %mul1 | |
| ret double %sub | |
| } |