diff --git a/analysis.go b/analysis.go
index dfda38bd..e60f7ed9 100644
--- a/analysis.go
+++ b/analysis.go
@@ -1,9 +1,7 @@
-
 package main
 
 import (
 	"go/types"
-
 	"golang.org/x/tools/go/ssa"
 )
 
diff --git a/src/device/arm/arm.go b/src/device/arm/arm.go
index ff6f4c53..5a64c357 100644
--- a/src/device/arm/arm.go
+++ b/src/device/arm/arm.go
@@ -33,6 +33,7 @@ type __reg uint32
 type RegValue = __reg
 
 type __asm string
+
 func Asm(s __asm)
 
 const (
diff --git a/src/examples/blinky/blinky.go b/src/examples/blinky/blinky.go
index b282806e..1479725b 100644
--- a/src/examples/blinky/blinky.go
+++ b/src/examples/blinky/blinky.go
@@ -1,4 +1,3 @@
-
 package main
 
 import (
diff --git a/src/examples/hello/hello.go b/src/examples/hello/hello.go
index a860b4e6..f8389da7 100644
--- a/src/examples/hello/hello.go
+++ b/src/examples/hello/hello.go
@@ -1,4 +1,3 @@
-
 package main
 
 type Thing struct {
@@ -84,7 +83,7 @@ func fib(n int) int {
 	if n <= 2 {
 		return 1
 	}
-	return fib(n - 1) + fib(n - 2)
+	return fib(n-1) + fib(n-2)
 }
 
 func sumrange(n int) int {
diff --git a/src/machine/machine.go b/src/machine/machine.go
index 91df6284..abe43688 100644
--- a/src/machine/machine.go
+++ b/src/machine/machine.go
@@ -1,4 +1,3 @@
-
 package machine
 
 type GPIOConfig struct {
diff --git a/src/machine/machine_avr.go b/src/machine/machine_avr.go
index 664f8399..23222ca3 100644
--- a/src/machine/machine_avr.go
+++ b/src/machine/machine_avr.go
@@ -1,4 +1,3 @@
-
 // +build avr
 
 package machine
@@ -10,7 +9,7 @@ import (
 type GPIOMode uint8
 
 const (
-	GPIO_INPUT  = iota
+	GPIO_INPUT = iota
 	GPIO_OUTPUT
 )
 
diff --git a/src/machine/machine_dummy.go b/src/machine/machine_dummy.go
index 8f355f6c..7c2f986b 100644
--- a/src/machine/machine_dummy.go
+++ b/src/machine/machine_dummy.go
@@ -1,4 +1,3 @@
-
 // +build !avr,!nrf
 
 package machine
@@ -8,7 +7,7 @@ package machine
 type GPIOMode uint8
 
 const (
-	GPIO_INPUT  = iota
+	GPIO_INPUT = iota
 	GPIO_OUTPUT
 )
 
diff --git a/src/machine/machine_nrf.go b/src/machine/machine_nrf.go
index 9f622d84..d1197f5e 100644
--- a/src/machine/machine_nrf.go
+++ b/src/machine/machine_nrf.go
@@ -1,4 +1,3 @@
-
 // +build nrf
 
 package machine
diff --git a/src/runtime/gc.go b/src/runtime/gc.go
index 7596af82..6bb06a75 100644
--- a/src/runtime/gc.go
+++ b/src/runtime/gc.go
@@ -1,4 +1,3 @@
-
 // +build !linux
 
 package runtime
diff --git a/src/runtime/print.go b/src/runtime/print.go
index bb606827..fe119852 100644
--- a/src/runtime/print.go
+++ b/src/runtime/print.go
@@ -1,4 +1,3 @@
-
 package runtime
 
 import (
@@ -96,8 +95,8 @@ func printitf(msg interface{}) {
 func printptr(ptr uintptr) {
 	putchar('0')
 	putchar('x')
-	for i := 0; i < int(unsafe.Sizeof(ptr)) * 2; i++ {
-		nibble := byte(ptr >> (unsafe.Sizeof(ptr) * 8 - 4))
+	for i := 0; i < int(unsafe.Sizeof(ptr))*2; i++ {
+		nibble := byte(ptr >> (unsafe.Sizeof(ptr)*8 - 4))
 		if nibble < 10 {
 			putchar(nibble + '0')
 		} else {
diff --git a/src/runtime/runtime.go b/src/runtime/runtime.go
index 81c73560..228b1ede 100644
--- a/src/runtime/runtime.go
+++ b/src/runtime/runtime.go
@@ -1,4 +1,3 @@
-
 package runtime
 
 const Compiler = "tgo"
diff --git a/src/runtime/runtime_avr.go b/src/runtime/runtime_avr.go
index 939595fb..91e517cb 100644
--- a/src/runtime/runtime_avr.go
+++ b/src/runtime/runtime_avr.go
@@ -1,4 +1,3 @@
-
 // +build avr
 
 package runtime
diff --git a/src/runtime/runtime_nrf.go b/src/runtime/runtime_nrf.go
index 0b62b498..0250113a 100644
--- a/src/runtime/runtime_nrf.go
+++ b/src/runtime/runtime_nrf.go
@@ -1,4 +1,3 @@
-
 // +build nrf
 
 package runtime
@@ -20,16 +19,17 @@ func init() {
 }
 
 func initUART() {
-	nrf.UART0.ENABLE        = nrf.UART0_ENABLE_ENABLE_Enabled
-	nrf.UART0.BAUDRATE      = nrf.UART0_BAUDRATE_BAUDRATE_Baud115200
+	nrf.UART0.ENABLE = nrf.UART0_ENABLE_ENABLE_Enabled
+	nrf.UART0.BAUDRATE = nrf.UART0_BAUDRATE_BAUDRATE_Baud115200
 	nrf.UART0.TASKS_STARTTX = 1
-	nrf.UART0.PSELTXD       = 6 // pin 6 for NRF52840-DK
+	nrf.UART0.PSELTXD = 6 // pin 6 for NRF52840-DK
 }
 
 func initLFCLK() {
 	nrf.CLOCK.LFCLKSRC = nrf.CLOCK_LFCLKSTAT_SRC_Xtal
 	nrf.CLOCK.TASKS_LFCLKSTART = 1
-	for nrf.CLOCK.EVENTS_LFCLKSTARTED == 0 {}
+	for nrf.CLOCK.EVENTS_LFCLKSTARTED == 0 {
+	}
 	nrf.CLOCK.EVENTS_LFCLKSTARTED = 0
 }
 
@@ -41,16 +41,17 @@ func initRTC() {
 
 func putchar(c byte) {
 	nrf.UART0.TXD = nrf.RegValue(c)
-	for nrf.UART0.EVENTS_TXDRDY == 0 {}
+	for nrf.UART0.EVENTS_TXDRDY == 0 {
+	}
 	nrf.UART0.EVENTS_TXDRDY = 0
 }
 
 func sleep(d Duration) {
 	ticks64 := d / 32
 	for ticks64 != 0 {
-		monotime() // update timestamp
+		monotime()                          // update timestamp
 		ticks := uint32(ticks64) & 0x7fffff // 23 bits (to be on the safe side)
-		C.rtc_sleep(C.uint32_t(ticks)) // TODO: not accurate (must be d / 30.5175...)
+		C.rtc_sleep(C.uint32_t(ticks))      // TODO: not accurate (must be d / 30.5175...)
 		ticks64 -= Duration(ticks)
 	}
 }
diff --git a/src/runtime/runtime_unix.go b/src/runtime/runtime_unix.go
index 1cb8256a..aedb197a 100644
--- a/src/runtime/runtime_unix.go
+++ b/src/runtime/runtime_unix.go
@@ -1,4 +1,3 @@
-
 // +build linux
 
 package runtime
@@ -30,7 +29,7 @@ func sleep(d Duration) {
 func monotime() uint64 {
 	var ts C.struct_timespec
 	C.clock_gettime(C.CLOCK_MONOTONIC, &ts)
-	return uint64(ts.tv_sec) * 1000 * 1000 + uint64(ts.tv_nsec) / 1000
+	return uint64(ts.tv_sec)*1000*1000 + uint64(ts.tv_nsec)/1000
 }
 
 func abort() {
diff --git a/src/runtime/scheduler.go b/src/runtime/scheduler.go
index 3af75017..22c7394d 100644
--- a/src/runtime/scheduler.go
+++ b/src/runtime/scheduler.go
@@ -1,4 +1,3 @@
-
 package runtime
 
 // This file implements the Go scheduler using coroutines.
@@ -212,7 +211,7 @@ func scheduler(main taskInstance) {
 
 		// Add tasks that are done sleeping to the end of the runqueue so they
 		// will be executed soon.
-		if sleepQueue != nil && now - sleepQueueBaseTime >= uint64(taskPromise(sleepQueue).data) {
+		if sleepQueue != nil && now-sleepQueueBaseTime >= uint64(taskPromise(sleepQueue).data) {
 			scheduleLog("  run <- sleep")
 			t := sleepQueue
 			promise := taskPromise(t)
diff --git a/src/runtime/time.go b/src/runtime/time.go
index 86475de7..3bdddaf3 100644
--- a/src/runtime/time.go
+++ b/src/runtime/time.go
@@ -1,4 +1,3 @@
-
 package runtime
 
 // TODO: use the time package for this.
diff --git a/src/syscall/syscall.go b/src/syscall/syscall.go
index 8571232c..d7ebaf3a 100644
--- a/src/syscall/syscall.go
+++ b/src/syscall/syscall.go
@@ -1,4 +1,3 @@
-
 package syscall
 
 // dummy
diff --git a/src/unsafe/unsafe.go b/src/unsafe/unsafe.go
index 0e7b8c8b..aec105ae 100644
--- a/src/unsafe/unsafe.go
+++ b/src/unsafe/unsafe.go
@@ -1,4 +1,3 @@
-
 package unsafe
 
 // dummy
diff --git a/tgo.go b/tgo.go
index 8a445b83..ff827f3a 100644
--- a/tgo.go
+++ b/tgo.go
@@ -1,4 +1,3 @@
-
 package main
 
 import (
@@ -127,14 +126,14 @@ func NewCompiler(pkgName, triple string, dumpSSA bool) (*Compiler, error) {
 func (c *Compiler) Parse(mainPath string, buildTags []string) error {
 	tripleSplit := strings.Split(c.triple, "-")
 
-	config := loader.Config {
+	config := loader.Config{
 		TypeChecker: types.Config{
 			Sizes: &types.StdSizes{
 				int64(c.targetData.PointerSize()),
 				int64(c.targetData.PrefTypeAlignment(c.i8ptrType)),
 			},
 		},
-		Build: &build.Context {
+		Build: &build.Context{
 			GOARCH:      tripleSplit[0],
 			GOOS:        tripleSplit[2],
 			GOROOT:      ".",
@@ -159,7 +158,7 @@ func (c *Compiler) Parse(mainPath string, buildTags []string) error {
 		}
 	}
 
-	c.program = ssautil.CreateProgram(lprogram, ssa.SanityCheckFunctions | ssa.BareInits)
+	c.program = ssautil.CreateProgram(lprogram, ssa.SanityCheckFunctions|ssa.BareInits)
 	c.program.Build()
 
 	c.mainPkg = c.program.ImportedPackage(mainPath)
@@ -1219,7 +1218,7 @@ func (c *Compiler) parseExpr(frame *Frame, expr ssa.Value) (llvm.Value, error) {
 		if !boundsCheck.IsNil() {
 			constZero := llvm.ConstInt(c.intType, 0, false)
 			isNegative := c.builder.CreateICmp(llvm.IntSLT, index, constZero, "") // index < 0
-			isTooBig := c.builder.CreateICmp(llvm.IntSGE, index, buflen, "") // index >= len(value)
+			isTooBig := c.builder.CreateICmp(llvm.IntSGE, index, buflen, "")      // index >= len(value)
 			isOverflow := c.builder.CreateOr(isNegative, isTooBig, "")
 			c.builder.CreateCall(boundsCheck, []llvm.Value{isOverflow}, "")
 		}
@@ -1382,7 +1381,7 @@ func (c *Compiler) parseBinOp(frame *Frame, binop *ssa.BinOp) (llvm.Value, error
 	if typNamed, ok := typ.(*types.Named); ok {
 		typ = typNamed.Underlying()
 	}
-	signed := typ.(*types.Basic).Info() & types.IsUnsigned == 0
+	signed := typ.(*types.Basic).Info()&types.IsUnsigned == 0
 	switch binop.Op {
 	case token.ADD: // +
 		return c.builder.CreateAdd(x, y, ""), nil
@@ -1404,7 +1403,7 @@ func (c *Compiler) parseBinOp(frame *Frame, binop *ssa.BinOp) (llvm.Value, error
 		}
 	case token.AND: // &
 		return c.builder.CreateAnd(x, y, ""), nil
-	case token.OR:  // |
+	case token.OR: // |
 		return c.builder.CreateOr(x, y, ""), nil
 	case token.XOR: // ^
 		return c.builder.CreateXor(x, y, ""), nil
@@ -1487,10 +1486,10 @@ func (c *Compiler) parseConst(expr *ssa.Const) (llvm.Value, error) {
 				return llvm.Value{}, errors.New("todo: non-null constant pointer")
 			}
 			return llvm.ConstNull(c.i8ptrType), nil
-		} else if typ.Info() & types.IsUnsigned != 0 {
+		} else if typ.Info()&types.IsUnsigned != 0 {
 			n, _ := constant.Uint64Val(expr.Value)
 			return llvm.ConstInt(llvmType, n, false), nil
-		} else if typ.Info() & types.IsInteger != 0 { // signed
+		} else if typ.Info()&types.IsInteger != 0 { // signed
 			n, _ := constant.Int64Val(expr.Value)
 			return llvm.ConstInt(llvmType, uint64(n), true), nil
 		} else {
@@ -1532,13 +1531,13 @@ func (c *Compiler) parseConvert(frame *Frame, typeTo types.Type, x ssa.Value) (l
 			return c.builder.CreateBitCast(value, llvmTypeTo, ""), nil
 		}
 
-		if typeTo.Info() & types.IsInteger == 0 { // if not integer
+		if typeTo.Info()&types.IsInteger == 0 { // if not integer
 			return llvm.Value{}, errors.New("todo: convert: extend non-integer type")
 		}
 
 		if sizeFrom > sizeTo {
 			return c.builder.CreateTrunc(value, llvmTypeTo, ""), nil
-		} else if typeTo.Info() & types.IsUnsigned != 0 { // if unsigned
+		} else if typeTo.Info()&types.IsUnsigned != 0 { // if unsigned
 			return c.builder.CreateZExt(value, llvmTypeTo, ""), nil
 		} else { // if signed
 			return c.builder.CreateSExt(value, llvmTypeTo, ""), nil
@@ -1718,7 +1717,6 @@ func Compile(pkgName, runtimePath, outpath, target string, printIR, dumpSSA bool
 	return nil
 }
 
-
 func main() {
 	outpath := flag.String("o", "", "output filename")
 	printIR := flag.Bool("printir", false, "print LLVM IR")
@@ -1734,7 +1732,7 @@ func main() {
 		return
 	}
 
-	os.Setenv("CC", "clang -target=" + *target)
+	os.Setenv("CC", "clang -target="+*target)
 
 	err := Compile(flag.Args()[0], *runtime, *outpath, *target, *printIR, *dumpSSA)
 	if err != nil {