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compiler: add alloc attributes to runtime.alloc

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This gives a small improvement now, and is needed to be able to use the
Heap2Stack transform that's available in the Attributor pass. This
Heap2Stack transform could replace our custom OptimizeAllocs pass.

Most of the changes are just IR that changed, the actual change is
relatively small.

To give an example of why this is useful, here is the code size before
this change:

    $ tinygo build -o test -size=short ./testdata/stdlib.go
       code    data     bss |   flash     ram
      95620    1812     968 |   97432    2780

    $ tinygo build -o test -size=short ./testdata/stdlib.go
       code    data     bss |   flash     ram
      95380    1812     968 |   97192    2780

That's a 0.25% reduction. Not a whole lot, but nice for such a small
patch.
This commit is contained in:
Ayke van Laethem
2023-03-11 20:57:40 +01:00
committed by Ron Evans
parent 5ed0cecf0d
commit f180339d6b
17 changed files with 504 additions and 447 deletions
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compiler/testdata/interface.ll
Vendored
+39 -37
View File
@@ -17,56 +17,57 @@ target triple = "wasm32-unknown-wasi"
@"reflect/types.type:interface:{String:func:{}{basic:string}}" = linkonce_odr constant { i8, ptr } { i8 20, ptr @"reflect/types.type:pointer:interface:{String:func:{}{basic:string}}" }, align 4
@"reflect/types.typeid:basic:int" = external constant i8
; Function Attrs: allockind("alloc,zeroed") allocsize(0)
declare noalias nonnull ptr @runtime.alloc(i32, ptr, ptr) #0
declare void @runtime.trackPointer(ptr nocapture readonly, ptr, ptr) #0
declare void @runtime.trackPointer(ptr nocapture readonly, ptr, ptr) #1
; Function Attrs: nounwind
define hidden void @main.init(ptr %context) unnamed_addr #1 {
define hidden void @main.init(ptr %context) unnamed_addr #2 {
entry:
ret void
}
; Function Attrs: nounwind
define hidden %runtime._interface @main.simpleType(ptr %context) unnamed_addr #1 {
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) #6
call void @runtime.trackPointer(ptr null, ptr nonnull %stackalloc, ptr undef) #6
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
ret %runtime._interface { ptr @"reflect/types.type:basic:int", ptr null }
}
; Function Attrs: nounwind
define hidden %runtime._interface @main.pointerType(ptr %context) unnamed_addr #1 {
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) #6
call void @runtime.trackPointer(ptr null, ptr nonnull %stackalloc, ptr undef) #6
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
ret %runtime._interface { ptr @"reflect/types.type:pointer:basic:int", ptr null }
}
; Function Attrs: nounwind
define hidden %runtime._interface @main.interfaceType(ptr %context) unnamed_addr #1 {
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) #6
call void @runtime.trackPointer(ptr null, ptr nonnull %stackalloc, ptr undef) #6
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
ret %runtime._interface { ptr @"reflect/types.type:pointer:named:error", ptr null }
}
; Function Attrs: nounwind
define hidden %runtime._interface @main.anonymousInterfaceType(ptr %context) unnamed_addr #1 {
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) #6
call void @runtime.trackPointer(ptr null, ptr nonnull %stackalloc, ptr undef) #6
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
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 #1 {
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) #6
%typecode = call i1 @runtime.typeAssert(ptr %itf.typecode, ptr nonnull @"reflect/types.typeid:basic:int", ptr undef) #7
br i1 %typecode, label %typeassert.ok, label %typeassert.next
typeassert.next: ; preds = %typeassert.ok, %entry
@@ -76,12 +77,12 @@ typeassert.ok: ; preds = %entry
br label %typeassert.next
}
declare i1 @runtime.typeAssert(ptr, ptr dereferenceable_or_null(1), ptr) #0
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 #1 {
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}}.$typeassert"(ptr %itf.typecode) #6
%0 = call i1 @"interface:{Error:func:{}{basic:string}}.$typeassert"(ptr %itf.typecode) #7
br i1 %0, label %typeassert.ok, label %typeassert.next
typeassert.next: ; preds = %typeassert.ok, %entry
@@ -91,12 +92,12 @@ typeassert.ok: ; preds = %entry
br label %typeassert.next
}
declare i1 @"interface:{Error:func:{}{basic:string}}.$typeassert"(ptr) #2
declare i1 @"interface:{Error:func:{}{basic:string}}.$typeassert"(ptr) #3
; Function Attrs: nounwind
define hidden i1 @main.isStringer(ptr %itf.typecode, ptr %itf.value, ptr %context) unnamed_addr #1 {
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}}.$typeassert"(ptr %itf.typecode) #6
%0 = call i1 @"interface:{String:func:{}{basic:string}}.$typeassert"(ptr %itf.typecode) #7
br i1 %0, label %typeassert.ok, label %typeassert.next
typeassert.next: ; preds = %typeassert.ok, %entry
@@ -106,33 +107,34 @@ typeassert.ok: ; preds = %entry
br label %typeassert.next
}
declare i1 @"interface:{String:func:{}{basic:string}}.$typeassert"(ptr) #3
declare i1 @"interface:{String:func:{}{basic:string}}.$typeassert"(ptr) #4
; Function Attrs: nounwind
define hidden i8 @main.callFooMethod(ptr %itf.typecode, ptr %itf.value, ptr %context) unnamed_addr #1 {
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$invoke"(ptr %itf.value, i32 3, ptr %itf.typecode, ptr undef) #6
%0 = call i8 @"interface:{String:func:{}{basic:string},main.foo:func:{basic:int}{basic:uint8}}.foo$invoke"(ptr %itf.value, i32 3, ptr %itf.typecode, ptr undef) #7
ret i8 %0
}
declare i8 @"interface:{String:func:{}{basic:string},main.foo:func:{basic:int}{basic:uint8}}.foo$invoke"(ptr, i32, ptr, ptr) #4
declare i8 @"interface:{String:func:{}{basic:string},main.foo:func:{basic:int}{basic:uint8}}.foo$invoke"(ptr, i32, ptr, ptr) #5
; Function Attrs: nounwind
define hidden %runtime._string @main.callErrorMethod(ptr %itf.typecode, ptr %itf.value, ptr %context) unnamed_addr #1 {
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$invoke"(ptr %itf.value, ptr %itf.typecode, ptr undef) #6
%0 = call %runtime._string @"interface:{Error:func:{}{basic:string}}.Error$invoke"(ptr %itf.value, ptr %itf.typecode, ptr undef) #7
%1 = extractvalue %runtime._string %0, 0
call void @runtime.trackPointer(ptr %1, ptr nonnull %stackalloc, ptr undef) #6
call void @runtime.trackPointer(ptr %1, ptr nonnull %stackalloc, ptr undef) #7
ret %runtime._string %0
}
declare %runtime._string @"interface:{Error:func:{}{basic:string}}.Error$invoke"(ptr, ptr, ptr) #5
declare %runtime._string @"interface:{Error:func:{}{basic:string}}.Error$invoke"(ptr, ptr, ptr) #6
attributes #0 = { "target-features"="+bulk-memory,+nontrapping-fptoint,+sign-ext" }
attributes #1 = { nounwind "target-features"="+bulk-memory,+nontrapping-fptoint,+sign-ext" }
attributes #2 = { "target-features"="+bulk-memory,+nontrapping-fptoint,+sign-ext" "tinygo-methods"="reflect/methods.Error() string" }
attributes #3 = { "target-features"="+bulk-memory,+nontrapping-fptoint,+sign-ext" "tinygo-methods"="reflect/methods.String() string" }
attributes #4 = { "target-features"="+bulk-memory,+nontrapping-fptoint,+sign-ext" "tinygo-invoke"="main.$methods.foo(int) uint8" "tinygo-methods"="reflect/methods.String() string; main.$methods.foo(int) uint8" }
attributes #5 = { "target-features"="+bulk-memory,+nontrapping-fptoint,+sign-ext" "tinygo-invoke"="reflect/methods.Error() string" "tinygo-methods"="reflect/methods.Error() string" }
attributes #6 = { nounwind }
attributes #0 = { allockind("alloc,zeroed") allocsize(0) "alloc-family"="runtime.alloc" "target-features"="+bulk-memory,+nontrapping-fptoint,+sign-ext" }
attributes #1 = { "target-features"="+bulk-memory,+nontrapping-fptoint,+sign-ext" }
attributes #2 = { nounwind "target-features"="+bulk-memory,+nontrapping-fptoint,+sign-ext" }
attributes #3 = { "target-features"="+bulk-memory,+nontrapping-fptoint,+sign-ext" "tinygo-methods"="reflect/methods.Error() string" }
attributes #4 = { "target-features"="+bulk-memory,+nontrapping-fptoint,+sign-ext" "tinygo-methods"="reflect/methods.String() string" }
attributes #5 = { "target-features"="+bulk-memory,+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,+nontrapping-fptoint,+sign-ext" "tinygo-invoke"="reflect/methods.Error() string" "tinygo-methods"="reflect/methods.Error() string" }
attributes #7 = { nounwind }