Add test case to show that we don't set the kill flag properly for fast isel handling of fneg.
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -fast-isel -fast-isel-abort=3 -mtriple=x86_64-apple-darwin10 -stop-after=expand-isel-pseudos | FileCheck %s

; Make sure we output the right kill flag for the xor conversion.

define void @goo(double* %x, double* %y) nounwind {
; CHECK: %[[REG2:.*]]:gr64 = COPY $rsi
; CHECK-NEXT: %[[REG0:.*]]:gr64 = COPY $rdi
; CHECK-NEXT: %[[REG1:.*]]:gr64 = COPY killed %[[REG0]]
; CHECK-NEXT: %[[REG3:.*]]:gr64 = COPY killed %[[REG2]]
; CHECK-NEXT: %[[REG10:.*]]:fr64 = MOVSDrm %[[REG1]], 1, $noreg, 0, $noreg :: (load 8 from %ir.x)
; CHECK-NEXT: %[[REG6:.*]]:gr64 = MOVSDto64rr %[[REG10]]
; CHECK-NEXT: %[[REG7:.*]]:gr64 = MOV64ri -9223372036854775808
; CHECK-NEXT: %[[REG8:.*]]:gr64 = XOR64rr killed %[[REG6]], %[[REG7]], implicit-def $eflags
; CHECK-NEXT: %[[REG9:.*]]:fr64 = MOV64toSDrr killed %[[REG8]]
; CHECK-NEXT: MOVSDmr %[[REG3]], 1, $noreg, 0, $noreg, killed %[[REG9]] :: (store 8 into %ir.y)
; CHECK-NEXT: RETQ
  %a = load double, double* %x
  %b = fsub double -0.0, %a
  store double %b, double* %y
  ret void
}