diff options
Diffstat (limited to 'src/cmd/compile/internal/ssa/stackalloc.go')
| -rw-r--r-- | src/cmd/compile/internal/ssa/stackalloc.go | 26 |
1 files changed, 4 insertions, 22 deletions
diff --git a/src/cmd/compile/internal/ssa/stackalloc.go b/src/cmd/compile/internal/ssa/stackalloc.go index d41f3996af..3e24b48a69 100644 --- a/src/cmd/compile/internal/ssa/stackalloc.go +++ b/src/cmd/compile/internal/ssa/stackalloc.go @@ -25,8 +25,6 @@ type stackAllocState struct { values []stackValState interfere [][]ID // interfere[v.id] = values that interfere with v. names []LocalSlot - slots []int - used []bool nArgSlot, // Number of Values sourced to arg slot nNotNeed, // Number of Values not needing a stack slot @@ -57,12 +55,6 @@ func putStackAllocState(s *stackAllocState) { for i := range s.names { s.names[i] = LocalSlot{} } - for i := range s.slots { - s.slots[i] = 0 - } - for i := range s.used { - s.used[i] = false - } s.f.Cache.stackAllocState = s s.f = nil s.live = nil @@ -218,25 +210,15 @@ func (s *stackAllocState) stackalloc() { // Each time we assign a stack slot to a value v, we remember // the slot we used via an index into locations[v.Type]. - slots := s.slots - if n := f.NumValues(); cap(slots) >= n { - slots = slots[:n] - } else { - slots = make([]int, n) - s.slots = slots - } + slots := f.Cache.allocIntSlice(f.NumValues()) + defer f.Cache.freeIntSlice(slots) for i := range slots { slots[i] = -1 } // Pick a stack slot for each value needing one. - var used []bool - if n := f.NumValues(); cap(s.used) >= n { - used = s.used[:n] - } else { - used = make([]bool, n) - s.used = used - } + used := f.Cache.allocBoolSlice(f.NumValues()) + defer f.Cache.freeBoolSlice(used) for _, b := range f.Blocks { for _, v := range b.Values { if !s.values[v.ID].needSlot { |