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compiler: reimplement interface type asserts

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This is a big reimplementation that simplifies the compiler a lot.
Instead of storing the method set in metadata and lowering the type
asserts as a whole program pass, this change just puts the list of
methods in the type code (and a separate global for the interface type).
This commit is contained in:
Ayke van Laethem
2024-07-29 14:16:10 +02:00
parent 6184a6cd35
commit 19e2d12517
18 changed files with 467 additions and 436 deletions
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compiler/testdata/interface.ll
Vendored
+31 -31
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@@ -7,15 +7,19 @@ target triple = "wasm32-unknown-wasi"
%runtime._string = type { ptr, i32 }
@"reflect/types.type:basic:int" = linkonce_odr constant { i8, ptr } { i8 -62, ptr @"reflect/types.type:pointer:basic:int" }, align 4
@"reflect/types.type:pointer:basic:int" = linkonce_odr constant { i8, i16, ptr } { i8 -43, i16 0, ptr @"reflect/types.type:basic:int" }, align 4
@"reflect/types.type:pointer:named:error" = linkonce_odr constant { i8, i16, ptr } { i8 -43, i16 0, ptr @"reflect/types.type:named:error" }, align 4
@"reflect/types.type:named:error" = linkonce_odr constant { i8, i16, ptr, ptr, ptr, [7 x i8] } { i8 116, i16 1, ptr @"reflect/types.type:pointer:named:error", ptr @"reflect/types.type:interface:{Error:func:{}{basic:string}}", ptr @"reflect/types.type.pkgpath.empty", [7 x i8] c".error\00" }, align 4
@"reflect/types.type:pointer:basic:int" = linkonce_odr constant { i8, i16, ptr, { i32, [0 x ptr] } } { i8 -43, i16 0, ptr @"reflect/types.type:basic:int", { i32, [0 x ptr] } zeroinitializer }, align 4
@"reflect/types.type:pointer:named:error" = linkonce_odr constant { i8, i16, ptr, { i32, [0 x ptr] } } { i8 -43, i16 0, ptr @"reflect/types.type:named:error", { i32, [0 x ptr] } zeroinitializer }, align 4
@"reflect/types.signature:Error:func:{}{basic:string}" = linkonce_odr constant i8 0, align 1
@"reflect/types.type:named:error" = linkonce_odr constant { i8, i16, ptr, ptr, ptr, { i32, [1 x ptr] }, [7 x i8] } { i8 116, i16 1, ptr @"reflect/types.type:pointer:named:error", ptr @"reflect/types.type:interface:{Error:func:{}{basic:string}}", ptr @"reflect/types.type.pkgpath.empty", { i32, [1 x ptr] } { i32 1, [1 x ptr] [ptr @"reflect/types.signature:Error:func:{}{basic:string}"] }, [7 x i8] c".error\00" }, align 4
@"reflect/types.type.pkgpath.empty" = linkonce_odr unnamed_addr constant [1 x i8] zeroinitializer, align 1
@"reflect/types.type:interface:{Error:func:{}{basic:string}}" = linkonce_odr constant { i8, ptr } { i8 84, ptr @"reflect/types.type:pointer:interface:{Error:func:{}{basic:string}}" }, align 4
@"reflect/types.type:pointer:interface:{Error:func:{}{basic:string}}" = linkonce_odr constant { i8, i16, ptr } { i8 -43, i16 0, ptr @"reflect/types.type:interface:{Error:func:{}{basic:string}}" }, align 4
@"reflect/types.type:pointer:interface:{String:func:{}{basic:string}}" = linkonce_odr constant { i8, i16, ptr } { i8 -43, i16 0, ptr @"reflect/types.type:interface:{String:func:{}{basic:string}}" }, align 4
@"reflect/types.type:interface:{String:func:{}{basic:string}}" = linkonce_odr constant { i8, ptr } { i8 84, ptr @"reflect/types.type:pointer:interface:{String:func:{}{basic:string}}" }, align 4
@"reflect/types.type:interface:{Error:func:{}{basic:string}}" = linkonce_odr constant { i8, ptr, { i32, [1 x ptr] } } { i8 84, ptr @"reflect/types.type:pointer:interface:{Error:func:{}{basic:string}}", { i32, [1 x ptr] } { i32 1, [1 x ptr] [ptr @"reflect/types.signature:Error:func:{}{basic:string}"] } }, align 4
@"reflect/types.type:pointer:interface:{Error:func:{}{basic:string}}" = linkonce_odr constant { i8, i16, ptr, { i32, [0 x ptr] } } { i8 -43, i16 0, ptr @"reflect/types.type:interface:{Error:func:{}{basic:string}}", { i32, [0 x ptr] } zeroinitializer }, align 4
@"reflect/types.type:pointer:interface:{String:func:{}{basic:string}}" = linkonce_odr constant { i8, i16, ptr, { i32, [0 x ptr] } } { i8 -43, i16 0, ptr @"reflect/types.type:interface:{String:func:{}{basic:string}}", { i32, [0 x ptr] } zeroinitializer }, align 4
@"reflect/types.signature:String:func:{}{basic:string}" = linkonce_odr constant i8 0, align 1
@"reflect/types.type:interface:{String:func:{}{basic:string}}" = linkonce_odr constant { i8, ptr, { i32, [1 x ptr] } } { i8 84, ptr @"reflect/types.type:pointer:interface:{String:func:{}{basic:string}}", { i32, [1 x ptr] } { i32 1, [1 x ptr] [ptr @"reflect/types.signature:String:func:{}{basic:string}"] } }, align 4
@"reflect/types.typeid:basic:int" = external constant i8
@"interface:{Error:func:{}{basic:string}}$itfmethods" = linkonce_odr unnamed_addr constant { i32, [1 x ptr] } { i32 1, [1 x ptr] [ptr @"reflect/types.signature:Error:func:{}{basic:string}"] }, align 4
@"interface:{String:func:{}{basic:string}}$itfmethods" = linkonce_odr unnamed_addr constant { i32, [1 x ptr] } { i32 1, [1 x ptr] [ptr @"reflect/types.signature:String:func:{}{basic:string}"] }, align 4
; Function Attrs: allockind("alloc,zeroed") allocsize(0)
declare noalias nonnull ptr @runtime.alloc(i32, ptr, ptr) #0
@@ -32,8 +36,8 @@ entry:
define hidden %runtime._interface @main.simpleType(ptr %context) unnamed_addr #2 {
entry:
%stackalloc = alloca i8, align 1
call void @runtime.trackPointer(ptr nonnull @"reflect/types.type:basic:int", ptr nonnull %stackalloc, ptr undef) #7
call void @runtime.trackPointer(ptr null, ptr nonnull %stackalloc, ptr undef) #7
call void @runtime.trackPointer(ptr nonnull @"reflect/types.type:basic:int", ptr nonnull %stackalloc, ptr undef) #5
call void @runtime.trackPointer(ptr null, ptr nonnull %stackalloc, ptr undef) #5
ret %runtime._interface { ptr @"reflect/types.type:basic:int", ptr null }
}
@@ -41,8 +45,8 @@ entry:
define hidden %runtime._interface @main.pointerType(ptr %context) unnamed_addr #2 {
entry:
%stackalloc = alloca i8, align 1
call void @runtime.trackPointer(ptr nonnull @"reflect/types.type:pointer:basic:int", ptr nonnull %stackalloc, ptr undef) #7
call void @runtime.trackPointer(ptr null, ptr nonnull %stackalloc, ptr undef) #7
call void @runtime.trackPointer(ptr nonnull @"reflect/types.type:pointer:basic:int", ptr nonnull %stackalloc, ptr undef) #5
call void @runtime.trackPointer(ptr null, ptr nonnull %stackalloc, ptr undef) #5
ret %runtime._interface { ptr @"reflect/types.type:pointer:basic:int", ptr null }
}
@@ -50,8 +54,8 @@ entry:
define hidden %runtime._interface @main.interfaceType(ptr %context) unnamed_addr #2 {
entry:
%stackalloc = alloca i8, align 1
call void @runtime.trackPointer(ptr nonnull @"reflect/types.type:pointer:named:error", ptr nonnull %stackalloc, ptr undef) #7
call void @runtime.trackPointer(ptr null, ptr nonnull %stackalloc, ptr undef) #7
call void @runtime.trackPointer(ptr nonnull @"reflect/types.type:pointer:named:error", ptr nonnull %stackalloc, ptr undef) #5
call void @runtime.trackPointer(ptr null, ptr nonnull %stackalloc, ptr undef) #5
ret %runtime._interface { ptr @"reflect/types.type:pointer:named:error", ptr null }
}
@@ -59,15 +63,15 @@ entry:
define hidden %runtime._interface @main.anonymousInterfaceType(ptr %context) unnamed_addr #2 {
entry:
%stackalloc = alloca i8, align 1
call void @runtime.trackPointer(ptr nonnull @"reflect/types.type:pointer:interface:{String:func:{}{basic:string}}", ptr nonnull %stackalloc, ptr undef) #7
call void @runtime.trackPointer(ptr null, ptr nonnull %stackalloc, ptr undef) #7
call void @runtime.trackPointer(ptr nonnull @"reflect/types.type:pointer:interface:{String:func:{}{basic:string}}", ptr nonnull %stackalloc, ptr undef) #5
call void @runtime.trackPointer(ptr null, ptr nonnull %stackalloc, ptr undef) #5
ret %runtime._interface { ptr @"reflect/types.type:pointer:interface:{String:func:{}{basic:string}}", ptr null }
}
; Function Attrs: nounwind
define hidden i1 @main.isInt(ptr %itf.typecode, ptr %itf.value, ptr %context) unnamed_addr #2 {
entry:
%typecode = call i1 @runtime.typeAssert(ptr %itf.typecode, ptr nonnull @"reflect/types.typeid:basic:int", ptr undef) #7
%typecode = call i1 @runtime.typeAssert(ptr %itf.typecode, ptr nonnull @"reflect/types.typeid:basic:int", ptr undef) #5
br i1 %typecode, label %typeassert.ok, label %typeassert.next
typeassert.next: ; preds = %typeassert.ok, %entry
@@ -82,7 +86,7 @@ declare i1 @runtime.typeAssert(ptr, ptr dereferenceable_or_null(1), ptr) #1
; Function Attrs: nounwind
define hidden i1 @main.isError(ptr %itf.typecode, ptr %itf.value, ptr %context) unnamed_addr #2 {
entry:
%0 = call i1 @"interface:{Error:func:{}{basic:string}}.$typeassert"(ptr %itf.typecode) #7
%0 = call i1 @runtime.typeImplementsMethodSet(ptr %itf.typecode, ptr nonnull @"interface:{Error:func:{}{basic:string}}$itfmethods", ptr undef) #5
br i1 %0, label %typeassert.ok, label %typeassert.next
typeassert.next: ; preds = %typeassert.ok, %entry
@@ -92,12 +96,12 @@ typeassert.ok: ; preds = %entry
br label %typeassert.next
}
declare i1 @"interface:{Error:func:{}{basic:string}}.$typeassert"(ptr) #3
declare i1 @runtime.typeImplementsMethodSet(ptr, ptr, ptr) #1
; Function Attrs: nounwind
define hidden i1 @main.isStringer(ptr %itf.typecode, ptr %itf.value, ptr %context) unnamed_addr #2 {
entry:
%0 = call i1 @"interface:{String:func:{}{basic:string}}.$typeassert"(ptr %itf.typecode) #7
%0 = call i1 @runtime.typeImplementsMethodSet(ptr %itf.typecode, ptr nonnull @"interface:{String:func:{}{basic:string}}$itfmethods", ptr undef) #5
br i1 %0, label %typeassert.ok, label %typeassert.next
typeassert.next: ; preds = %typeassert.ok, %entry
@@ -107,34 +111,30 @@ typeassert.ok: ; preds = %entry
br label %typeassert.next
}
declare i1 @"interface:{String:func:{}{basic:string}}.$typeassert"(ptr) #4
; Function Attrs: nounwind
define hidden i8 @main.callFooMethod(ptr %itf.typecode, ptr %itf.value, ptr %context) unnamed_addr #2 {
entry:
%0 = call i8 @"interface:{String:func:{}{basic:string},main.foo:func:{basic:int}{basic:uint8}}.foo$invoke"(ptr %itf.value, i32 3, ptr %itf.typecode, ptr undef) #7
%0 = call i8 @"interface:{String:func:{}{basic:string},main.foo:func:{basic:int}{basic:uint8}}.foo$invoke"(ptr %itf.value, i32 3, ptr %itf.typecode, ptr undef) #5
ret i8 %0
}
declare i8 @"interface:{String:func:{}{basic:string},main.foo:func:{basic:int}{basic:uint8}}.foo$invoke"(ptr, i32, ptr, ptr) #5
declare i8 @"interface:{String:func:{}{basic:string},main.foo:func:{basic:int}{basic:uint8}}.foo$invoke"(ptr, i32, ptr, ptr) #3
; Function Attrs: nounwind
define hidden %runtime._string @main.callErrorMethod(ptr %itf.typecode, ptr %itf.value, ptr %context) unnamed_addr #2 {
entry:
%stackalloc = alloca i8, align 1
%0 = call %runtime._string @"interface:{Error:func:{}{basic:string}}.Error$invoke"(ptr %itf.value, ptr %itf.typecode, ptr undef) #7
%0 = call %runtime._string @"interface:{Error:func:{}{basic:string}}.Error$invoke"(ptr %itf.value, ptr %itf.typecode, ptr undef) #5
%1 = extractvalue %runtime._string %0, 0
call void @runtime.trackPointer(ptr %1, ptr nonnull %stackalloc, ptr undef) #7
call void @runtime.trackPointer(ptr %1, ptr nonnull %stackalloc, ptr undef) #5
ret %runtime._string %0
}
declare %runtime._string @"interface:{Error:func:{}{basic:string}}.Error$invoke"(ptr, ptr, ptr) #6
declare %runtime._string @"interface:{Error:func:{}{basic:string}}.Error$invoke"(ptr, ptr, ptr) #4
attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
attributes #1 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
attributes #2 = { nounwind "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" }
attributes #3 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" "tinygo-methods"="reflect/methods.Error() string" }
attributes #4 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" "tinygo-methods"="reflect/methods.String() string" }
attributes #5 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" "tinygo-invoke"="main.$methods.foo(int) uint8" "tinygo-methods"="reflect/methods.String() string; main.$methods.foo(int) uint8" }
attributes #6 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" "tinygo-invoke"="reflect/methods.Error() string" "tinygo-methods"="reflect/methods.Error() string" }
attributes #7 = { nounwind }
attributes #3 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" "tinygo-invoke"="main.$methods.foo(int) uint8" "tinygo-methods"="reflect/methods.String() string; main.$methods.foo(int) uint8" }
attributes #4 = { "target-features"="+bulk-memory,+mutable-globals,+nontrapping-fptoint,+sign-ext" "tinygo-invoke"="reflect/methods.Error() string" "tinygo-methods"="reflect/methods.Error() string" }
attributes #5 = { nounwind }