diff options
Diffstat (limited to 'src/cmd/compile/internal/wasm/ssa.go')
| -rw-r--r-- | src/cmd/compile/internal/wasm/ssa.go | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/cmd/compile/internal/wasm/ssa.go b/src/cmd/compile/internal/wasm/ssa.go index 31b09016eb..0b2ca3fdbb 100644 --- a/src/cmd/compile/internal/wasm/ssa.go +++ b/src/cmd/compile/internal/wasm/ssa.go @@ -24,7 +24,6 @@ func Init(arch *ssagen.ArchInfo) { arch.ZeroRange = zeroRange arch.Ginsnop = ginsnop - arch.Ginsnopdefer = ginsnop arch.SSAMarkMoves = ssaMarkMoves arch.SSAGenValue = ssaGenValue @@ -126,7 +125,11 @@ func ssaGenValue(s *ssagen.State, v *ssa.Value) { case ssa.OpWasmLoweredStaticCall, ssa.OpWasmLoweredClosureCall, ssa.OpWasmLoweredInterCall: s.PrepareCall(v) if call, ok := v.Aux.(*ssa.AuxCall); ok && call.Fn == ir.Syms.Deferreturn { - // add a resume point before call to deferreturn so it can be called again via jmpdefer + // The runtime needs to inject jumps to + // deferreturn calls using the address in + // _func.deferreturn. Hence, the call to + // deferreturn must itself be a resumption + // point so it gets a target PC. s.Prog(wasm.ARESUMEPOINT) } if v.Op == ssa.OpWasmLoweredClosureCall { |