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cmd/internal/gc: sync nowritebarrier checks and write barrier insertion
Change-Id: I348223d0336e28d95b8e68d7653aa547acc7c9c3 Reviewed-on: https://go-review.googlesource.com/10262 Reviewed-by: Austin Clements <austin@google.com>
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@ -785,6 +785,9 @@ abop: // asymmetric binary
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var sys_wbptr *Node
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var sys_wbptr *Node
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func cgen_wbptr(n, res *Node) {
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func cgen_wbptr(n, res *Node) {
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if Curfn != nil && Curfn.Func.Nowritebarrier {
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Yyerror("write barrier prohibited")
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}
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if Debug_wb > 0 {
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if Debug_wb > 0 {
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Warn("write barrier")
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Warn("write barrier")
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}
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}
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@ -828,6 +831,9 @@ func cgen_wbptr(n, res *Node) {
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}
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}
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func cgen_wbfat(n, res *Node) {
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func cgen_wbfat(n, res *Node) {
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if Curfn != nil && Curfn.Func.Nowritebarrier {
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Yyerror("write barrier prohibited")
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}
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if Debug_wb > 0 {
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if Debug_wb > 0 {
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Warn("write barrier")
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Warn("write barrier")
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}
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}
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@ -2217,6 +2217,9 @@ func applywritebarrier(n *Node, init **NodeList) *Node {
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return n
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return n
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}
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}
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// Use slow path always for race detector.
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// Use slow path always for race detector.
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if Curfn != nil && Curfn.Func.Nowritebarrier {
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Yyerror("write barrier prohibited")
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}
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if Debug_wb > 0 {
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if Debug_wb > 0 {
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Warnl(int(n.Lineno), "write barrier")
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Warnl(int(n.Lineno), "write barrier")
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}
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}
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