add -nobounds (similar to -gcflags=-B)

main.go

@@ -1514,6 +1514,7 @@ func main() {
 	printCommands := flag.Bool("x", false, "Print commands")
 	parallelism := flag.Int("p", runtime.GOMAXPROCS(0), "the number of build jobs that can run in parallel")
 	nodebug := flag.Bool("no-debug", false, "strip debug information")
+	nobounds := flag.Bool("nobounds", false, "do not emit bounds checks")
 	ocdCommandsString := flag.String("ocd-commands", "", "OpenOCD commands, overriding target spec (can specify multiple separated by commas)")
 	ocdOutput := flag.Bool("ocd-output", false, "print OCD daemon output during debug")
 	port := flag.String("port", "", "flash port (can specify multiple candidates separated by commas)")
@@ -1625,6 +1626,7 @@ func main() {
 		SkipDWARF:       *skipDwarf,
 		Semaphore:       make(chan struct{}, *parallelism),
 		Debug:           !*nodebug,
+		Nobounds:        *nobounds,
 		PrintSizes:      *printSize,
 		PrintStacks:     *printStacks,
 		PrintAllocs:     printAllocs,