diff options
Diffstat (limited to 'src/cmd/compile/internal/ssagen/pgen.go')
| -rw-r--r-- | src/cmd/compile/internal/ssagen/pgen.go | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/cmd/compile/internal/ssagen/pgen.go b/src/cmd/compile/internal/ssagen/pgen.go index 62567535d7..93157bfa11 100644 --- a/src/cmd/compile/internal/ssagen/pgen.go +++ b/src/cmd/compile/internal/ssagen/pgen.go @@ -114,7 +114,10 @@ func (s *ssafn) AllocFrame(f *ssa.Func) { } } - sort.Sort(byStackVar(fn.Dcl)) + // Use sort.Stable instead of sort.Sort so stack layout (and thus + // compiler output) is less sensitive to frontend changes that + // introduce or remove unused variables. + sort.Stable(byStackVar(fn.Dcl)) // Reassign stack offsets of the locals that are used. lastHasPtr := false |