diff --git a/src/cmd/go.mod b/src/cmd/go.mod
index e4a2eaa908..77ec02a8a9 100644
--- a/src/cmd/go.mod
+++ b/src/cmd/go.mod
@@ -8,5 +8,5 @@ require (
 	golang.org/x/arch v0.0.0-20190815191158-8a70ba74b3a1
 	golang.org/x/crypto v0.0.0-20190325154230-a5d413f7728c
 	golang.org/x/sys v0.0.0-20190502175342-a43fa875dd82 // indirect
-	golang.org/x/tools v0.0.0-20190925211824-e4ea94538f5b
+	golang.org/x/tools v0.0.0-20191018203202-04252eccb9d5
 )
diff --git a/src/cmd/go.sum b/src/cmd/go.sum
index 7c3ee7304b..6a3d609416 100644
--- a/src/cmd/go.sum
+++ b/src/cmd/go.sum
@@ -14,7 +14,7 @@ golang.org/x/sys v0.0.0-20190502175342-a43fa875dd82 h1:vsphBvatvfbhlb4PO1BYSr9dz
 golang.org/x/sys v0.0.0-20190502175342-a43fa875dd82/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/tools v0.0.0-20190925211824-e4ea94538f5b h1:gyG4T6EqWG9fqSgT0VbHhzp8bHbFux5mvlgz1gUkEaQ=
-golang.org/x/tools v0.0.0-20190925211824-e4ea94538f5b/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20191018203202-04252eccb9d5 h1:TFUhCYbgGMOGnRxJv+j0iAcxCjk8oGjXXWNejQBhUUs=
+golang.org/x/tools v0.0.0-20191018203202-04252eccb9d5/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4=
diff --git a/src/cmd/vendor/golang.org/x/tools/go/analysis/passes/asmdecl/asmdecl.go b/src/cmd/vendor/golang.org/x/tools/go/analysis/passes/asmdecl/asmdecl.go
index d41c4e97e3..6e7a76e8c8 100644
--- a/src/cmd/vendor/golang.org/x/tools/go/analysis/passes/asmdecl/asmdecl.go
+++ b/src/cmd/vendor/golang.org/x/tools/go/analysis/passes/asmdecl/asmdecl.go
@@ -79,7 +79,6 @@ var (
 	asmArchArm      = asmArch{name: "arm", bigEndian: false, stack: "R13", lr: true}
 	asmArchArm64    = asmArch{name: "arm64", bigEndian: false, stack: "RSP", lr: true}
 	asmArchAmd64    = asmArch{name: "amd64", bigEndian: false, stack: "SP", lr: false}
-	asmArchAmd64p32 = asmArch{name: "amd64p32", bigEndian: false, stack: "SP", lr: false}
 	asmArchMips     = asmArch{name: "mips", bigEndian: true, stack: "R29", lr: true}
 	asmArchMipsLE   = asmArch{name: "mipsle", bigEndian: false, stack: "R29", lr: true}
 	asmArchMips64   = asmArch{name: "mips64", bigEndian: true, stack: "R29", lr: true}
@@ -94,7 +93,6 @@ var (
 		&asmArchArm,
 		&asmArchArm64,
 		&asmArchAmd64,
-		&asmArchAmd64p32,
 		&asmArchMips,
 		&asmArchMipsLE,
 		&asmArchMips64,
@@ -635,9 +633,6 @@ func asmCheckVar(badf func(string, ...interface{}), fn *asmFunc, line, expr stri
 	case "amd64.LEAQ":
 		dst = 8
 		addr = true
-	case "amd64p32.LEAL":
-		dst = 4
-		addr = true
 	default:
 		switch fn.arch.name {
 		case "386", "amd64":
diff --git a/src/cmd/vendor/golang.org/x/tools/go/analysis/passes/printf/printf.go b/src/cmd/vendor/golang.org/x/tools/go/analysis/passes/printf/printf.go
index f0d7e44c65..b501538055 100644
--- a/src/cmd/vendor/golang.org/x/tools/go/analysis/passes/printf/printf.go
+++ b/src/cmd/vendor/golang.org/x/tools/go/analysis/passes/printf/printf.go
@@ -766,8 +766,8 @@ var printVerbs = []printVerb{
 	{'U', "-#", argRune | argInt},
 	{'v', allFlags, anyType},
 	{'w', allFlags, argError},
-	{'x', sharpNumFlag, argRune | argInt | argString | argPointer},
-	{'X', sharpNumFlag, argRune | argInt | argString | argPointer},
+	{'x', sharpNumFlag, argRune | argInt | argString | argPointer | argFloat | argComplex},
+	{'X', sharpNumFlag, argRune | argInt | argString | argPointer | argFloat | argComplex},
 }
 
 // okPrintfArg compares the formatState to the arguments actually present,
diff --git a/src/cmd/vendor/golang.org/x/tools/go/analysis/validate.go b/src/cmd/vendor/golang.org/x/tools/go/analysis/validate.go
index b984ab6c2d..be98143461 100644
--- a/src/cmd/vendor/golang.org/x/tools/go/analysis/validate.go
+++ b/src/cmd/vendor/golang.org/x/tools/go/analysis/validate.go
@@ -9,13 +9,10 @@ import (
 // Validate reports an error if any of the analyzers are misconfigured.
 // Checks include:
 // that the name is a valid identifier;
-// that analyzer names are unique;
 // that the Requires graph is acyclic;
 // that analyzer fact types are unique;
 // that each fact type is a pointer.
 func Validate(analyzers []*Analyzer) error {
-	names := make(map[string]bool)
-
 	// Map each fact type to its sole generating analyzer.
 	factTypes := make(map[reflect.Type]*Analyzer)
 
@@ -39,10 +36,6 @@ func Validate(analyzers []*Analyzer) error {
 			if !validIdent(a.Name) {
 				return fmt.Errorf("invalid analyzer name %q", a)
 			}
-			if names[a.Name] {
-				return fmt.Errorf("duplicate analyzer name %q", a)
-			}
-			names[a.Name] = true
 
 			if a.Doc == "" {
 				return fmt.Errorf("analyzer %q is undocumented", a)
diff --git a/src/cmd/vendor/modules.txt b/src/cmd/vendor/modules.txt
index 6ed3e16e2a..12f8740f4d 100644
--- a/src/cmd/vendor/modules.txt
+++ b/src/cmd/vendor/modules.txt
@@ -31,7 +31,7 @@ golang.org/x/crypto/ssh/terminal
 ## explicit
 golang.org/x/sys/unix
 golang.org/x/sys/windows
-# golang.org/x/tools v0.0.0-20190925211824-e4ea94538f5b
+# golang.org/x/tools v0.0.0-20191018203202-04252eccb9d5
 ## explicit
 golang.org/x/tools/go/analysis
 golang.org/x/tools/go/analysis/internal/analysisflags
diff --git a/src/cmd/vet/testdata/print/print.go b/src/cmd/vet/testdata/print/print.go
index 7a4783aee4..fca594925f 100644
--- a/src/cmd/vet/testdata/print/print.go
+++ b/src/cmd/vet/testdata/print/print.go
@@ -81,8 +81,8 @@ func PrintfTests() {
 	fmt.Printf("%T %T", 3, i)
 	fmt.Printf("%U %U", 3, i)
 	fmt.Printf("%v %v", 3, i)
-	fmt.Printf("%x %x %x %x", 3, i, "hi", s)
-	fmt.Printf("%X %X %X %X", 3, i, "hi", s)
+	fmt.Printf("%x %x %x %x %x %x %x", 3, i, "hi", s, x, c, fslice)
+	fmt.Printf("%X %X %X %X %X %X %X", 3, i, "hi", s, x, c, fslice)
 	fmt.Printf("%.*s %d %g", 3, "hi", 23, 2.3)
 	fmt.Printf("%s", &stringerv)
 	fmt.Printf("%v", &stringerv)
@@ -125,7 +125,6 @@ func PrintfTests() {
 	fmt.Printf("%t", 23)                        // ERROR "Printf format %t has arg 23 of wrong type int"
 	fmt.Printf("%U", x)                         // ERROR "Printf format %U has arg x of wrong type float64"
 	fmt.Printf("%x", nil)                       // ERROR "Printf format %x has arg nil of wrong type untyped nil"
-	fmt.Printf("%X", 2.3)                       // ERROR "Printf format %X has arg 2.3 of wrong type float64"
 	fmt.Printf("%s", stringerv)                 // ERROR "Printf format %s has arg stringerv of wrong type .*print.ptrStringer"
 	fmt.Printf("%t", stringerv)                 // ERROR "Printf format %t has arg stringerv of wrong type .*print.ptrStringer"
 	fmt.Printf("%s", embeddedStringerv)         // ERROR "Printf format %s has arg embeddedStringerv of wrong type .*print.embeddedStringer"