cmd/compile: remove most uses of duintxx

The only remaining uses of duintxx
are in the implementation of duintNN.
I hope to inline those once I figure out why
CL 40864 is broken.

Note that some uses of duintxx with width Widthint
were converted into duintptr.
I did that, since #19954 is officially going to move forward.

Passes toolstash-check.

Change-Id: Id25253b711ea589d0199b51be9a3c18ca1af59ce
Reviewed-on: https://go-review.googlesource.com/41398
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>

src/cmd/compile/internal/gc/obj.go

@@ -332,8 +332,8 @@ func slicebytes(nam *Node, s string, len int) {
 	}
 	off = int(nam.Xoffset)
 	off = dsymptr(nam.Sym.Linksym(), off, sym.Linksym(), 0)
-	off = duintxx(nam.Sym.Linksym(), off, uint64(len), Widthint)
-	duintxx(nam.Sym.Linksym(), off, uint64(len), Widthint)
+	off = duintptr(nam.Sym.Linksym(), off, uint64(len))
+	duintptr(nam.Sym.Linksym(), off, uint64(len))
 }
 
 func dsname(s *obj.LSym, off int, t string) int {

src/cmd/compile/internal/gc/reflect.go

@@ -459,7 +459,7 @@ func dgopkgpath(s *types.Sym, ot int, pkg *types.Pkg) int {
 
 func dgopkgpathLSym(s *obj.LSym, ot int, pkg *types.Pkg) int {
 	if pkg == nil {
-		return duintxx(s, ot, 0, Widthptr)
+		return duintptr(s, ot, 0)
 	}
 
 	if pkg == localpkg && myimportpath == "" {
@@ -479,7 +479,7 @@ func dgopkgpathLSym(s *obj.LSym, ot int, pkg *types.Pkg) int {
 // dgopkgpathOffLSym writes an offset relocation in s at offset ot to the pkg path symbol.
 func dgopkgpathOffLSym(s *obj.LSym, ot int, pkg *types.Pkg) int {
 	if pkg == nil {
-		return duintxx(s, ot, 0, 4)
+		return duint32(s, ot, 0)
 	}
 	if pkg == localpkg && myimportpath == "" {
 		// If we don't know the full import path of the package being compiled
@@ -673,7 +673,7 @@ func dextratypeData(s *types.Sym, ot int, t *types.Type) int {
 }
 
 func dmethodptrOffLSym(s *obj.LSym, ot int, x *obj.LSym) int {
-	duintxx(s, ot, 0, 4)
+	duint32(s, ot, 0)
 	r := obj.Addrel(s)
 	r.Off = int32(ot)
 	r.Siz = 4
@@ -1204,8 +1204,8 @@ ok:
 		ot = dgopkgpath(s, ot, tpkg)
 
 		ot = dsymptr(s.Linksym(), ot, s.Linksym(), ot+Widthptr+2*Widthint+uncommonSize(t))
-		ot = duintxx(s.Linksym(), ot, uint64(n), Widthint)
-		ot = duintxx(s.Linksym(), ot, uint64(n), Widthint)
+		ot = duintptr(s.Linksym(), ot, uint64(n))
+		ot = duintptr(s.Linksym(), ot, uint64(n))
 		dataAdd := imethodSize() * n
 		ot = dextratype(s, ot, t, dataAdd)
 
@@ -1297,8 +1297,8 @@ ok:
 		}
 		ot = dgopkgpath(s, ot, pkg)
 		ot = dsymptr(s.Linksym(), ot, s.Linksym(), ot+Widthptr+2*Widthint+uncommonSize(t))
-		ot = duintxx(s.Linksym(), ot, uint64(n), Widthint)
-		ot = duintxx(s.Linksym(), ot, uint64(n), Widthint)
+		ot = duintptr(s.Linksym(), ot, uint64(n))
+		ot = duintptr(s.Linksym(), ot, uint64(n))
 
 		dataAdd := n * structfieldSize()
 		ot = dextratype(s, ot, t, dataAdd)
@@ -1575,7 +1575,7 @@ func dalgsym(t *types.Type) *types.Sym {
 
 		ot := 0
 		ot = dsymptr(hashfunc.Linksym(), ot, Runtimepkg.Lookup("memhash_varlen").Linksym(), 0)
-		ot = duintxx(hashfunc.Linksym(), ot, uint64(t.Width), Widthptr) // size encoded in closure
+		ot = duintptr(hashfunc.Linksym(), ot, uint64(t.Width)) // size encoded in closure
 		ggloblsym(hashfunc, int32(ot), obj.DUPOK|obj.RODATA)
 
 		// make equality closure
@@ -1585,7 +1585,7 @@ func dalgsym(t *types.Type) *types.Sym {
 
 		ot = 0
 		ot = dsymptr(eqfunc.Linksym(), ot, Runtimepkg.Lookup("memequal_varlen").Linksym(), 0)
-		ot = duintxx(eqfunc.Linksym(), ot, uint64(t.Width), Widthptr)
+		ot = duintptr(eqfunc.Linksym(), ot, uint64(t.Width))
 		ggloblsym(eqfunc, int32(ot), obj.DUPOK|obj.RODATA)
 	} else {
 		// generate an alg table specific to this type