pkg/compiler: check for unused declarations

Error on unused structs/unions/resources/flags.
Finds tons of bugs.

1 files changed, 13 insertions, 0 deletions

diff --git a/pkg/compiler/testdata/all.txt b/pkg/compiler/testdata/all.txt
index 69ad6d181..a5a097de3 100644
--- a/pkg/compiler/testdata/all.txt
+++ b/pkg/compiler/testdata/all.txt
@@ -7,6 +7,7 @@ foo$2(a ptr[out, array[int32]])
 foo$3(a union_arg)
 foo$4() r0
 foo$5(a int8['a':'z'])
+foo$6(a ptr[in, strings])
 
 resource r0[intptr]
 
@@ -38,6 +39,8 @@ strings {
 string_flags1 = "foo", "barbaz"
 string_flags2 = ""
 int_flags = 0, 1
+_ = 1, 2
+_ = C1, C2
 
 # Proc type.
 
@@ -45,6 +48,8 @@ proc_struct1 {
 	f1	proc[C0, 8, int8]
 }
 
+foo$proc1(a ptr[in, proc_struct1])
+
 # Len/bytesize types.
 
 type len_templ1[DATA1, DATA2] {
@@ -122,6 +127,8 @@ bitfield0 {
 	f2	int8:2
 }
 
+foo$bitfield0(a ptr[in, bitfield0])
+
 # Type templates.
 
 type type0 int8
@@ -184,6 +191,8 @@ foo$templ3(a ptr[in, templ_struct1[1]], b ptr[in, templ_struct1[2]])
 foo$templ4(a ptr[in, templ_struct1[3]])
 foo$templ5(a ptr[in, templ_struct1[3]])
 foo$templ6(a ptr[in, templ_struct4])
+foo$templ7(a ptr[in, templ_struct5], b ptr[in, templ_struct6], c ptr[in, templ_union], d ptr[in, type3])
+foo$templ8(a ptr[in, templ_templ_use])
 
 # Structs.
 
@@ -195,8 +204,12 @@ s1 {
 	f1	int8
 } [size[C2]]
 
+foo$s0(a ptr[in, s0], b ptr[in, s1])
+
 # Unions.
 
 u0 [
 	f1	int32
 ]
+
+foo$u0(a ptr[in, u0])