diff options
Diffstat (limited to 'src/cmd/internal/obj/mips/obj0.go')
| -rw-r--r-- | src/cmd/internal/obj/mips/obj0.go | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/cmd/internal/obj/mips/obj0.go b/src/cmd/internal/obj/mips/obj0.go index 135a8df3aa..91bba90d41 100644 --- a/src/cmd/internal/obj/mips/obj0.go +++ b/src/cmd/internal/obj/mips/obj0.go @@ -35,6 +35,7 @@ import ( "cmd/internal/sys" "encoding/binary" "fmt" + "log" "math" ) @@ -536,6 +537,21 @@ func preprocess(ctxt *obj.Link, cursym *obj.LSym, newprog obj.ProgAlloc) { p.From.Reg = REGSP } } + + if p.To.Type == obj.TYPE_REG && p.To.Reg == REGSP && p.Spadj == 0 { + f := c.cursym.Func() + if f.FuncFlag&objabi.FuncFlag_SPWRITE == 0 { + c.cursym.Func().FuncFlag |= objabi.FuncFlag_SPWRITE + if ctxt.Debugvlog || !ctxt.IsAsm { + ctxt.Logf("auto-SPWRITE: %s %v\n", c.cursym.Name, p) + if !ctxt.IsAsm { + ctxt.Diag("invalid auto-SPWRITE in non-assembly") + ctxt.DiagFlush() + log.Fatalf("bad SPWRITE") + } + } + } + } } if c.ctxt.Arch.Family == sys.MIPS { |