diff options
| -rw-r--r-- | src/cmd/compile/internal/base/debug.go | 1 | ||||
| -rw-r--r-- | src/cmd/compile/internal/ssagen/ssa.go | 2 |
2 files changed, 3 insertions, 0 deletions
diff --git a/src/cmd/compile/internal/base/debug.go b/src/cmd/compile/internal/base/debug.go index 7590dc1bfa..71712ab1a5 100644 --- a/src/cmd/compile/internal/base/debug.go +++ b/src/cmd/compile/internal/base/debug.go @@ -39,6 +39,7 @@ type DebugFlags struct { Libfuzzer int `help:"enable coverage instrumentation for libfuzzer"` LocationLists int `help:"print information about DWARF location list creation"` Nil int `help:"print information about nil checks"` + NoOpenDefer int `help:"disable open-coded defers"` PCTab string `help:"print named pc-value table"` Panic int `help:"show all compiler panics"` Slice int `help:"print information about slice compilation"` diff --git a/src/cmd/compile/internal/ssagen/ssa.go b/src/cmd/compile/internal/ssagen/ssa.go index 67c9e9c198..0a49ca214d 100644 --- a/src/cmd/compile/internal/ssagen/ssa.go +++ b/src/cmd/compile/internal/ssagen/ssa.go @@ -470,6 +470,8 @@ func buildssa(fn *ir.Func, worker int) *ssa.Func { s.hasOpenDefers = base.Flag.N == 0 && s.hasdefer && !s.curfn.OpenCodedDeferDisallowed() switch { + case base.Debug.NoOpenDefer != 0: + s.hasOpenDefers = false case s.hasOpenDefers && (base.Ctxt.Flag_shared || base.Ctxt.Flag_dynlink) && base.Ctxt.Arch.Name == "386": // Don't support open-coded defers for 386 ONLY when using shared // libraries, because there is extra code (added by rewriteToUseGot()) |