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compiler: refactor func lowering to the transform package
This commit makes a number of changes: * It avoids a dependency on Compiler.emitStartGoroutine. * It moves the func-lowering pass to the transform package. * It adds testing to func lowering. No functionality should have changed with this commit.
This commit is contained in:
Ayke van Laethem
committed by
Ron Evans
Ron Evans
parent
024a0827ea
commit
374349cfa5
Vendored
+83
@@ -0,0 +1,83 @@
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target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
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target triple = "wasm32-unknown-unknown-wasm"
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%runtime.typecodeID = type { %runtime.typecodeID*, i32 }
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%runtime.funcValueWithSignature = type { i32, %runtime.typecodeID* }
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@"reflect/types.type:func:{basic:int8}{}" = external constant %runtime.typecodeID
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@"reflect/types.type:func:{basic:uint8}{}" = external constant %runtime.typecodeID
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@"reflect/types.type:func:{basic:int}{}" = external constant %runtime.typecodeID
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@"funcInt8$withSignature" = constant %runtime.funcValueWithSignature { i32 ptrtoint (void (i8, i8*, i8*)* @funcInt8 to i32), %runtime.typecodeID* @"reflect/types.type:func:{basic:int8}{}" }
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@"func1Uint8$withSignature" = constant %runtime.funcValueWithSignature { i32 ptrtoint (void (i8, i8*, i8*)* @func1Uint8 to i32), %runtime.typecodeID* @"reflect/types.type:func:{basic:uint8}{}" }
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@"func2Uint8$withSignature" = constant %runtime.funcValueWithSignature { i32 ptrtoint (void (i8, i8*, i8*)* @func2Uint8 to i32), %runtime.typecodeID* @"reflect/types.type:func:{basic:uint8}{}" }
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@"main$withSignature" = constant %runtime.funcValueWithSignature { i32 ptrtoint (void (i32, i8*, i8*)* @"main$1" to i32), %runtime.typecodeID* @"reflect/types.type:func:{basic:int}{}" }
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@"main$2$withSignature" = constant %runtime.funcValueWithSignature { i32 ptrtoint (void (i32, i8*, i8*)* @"main$2" to i32), %runtime.typecodeID* @"reflect/types.type:func:{basic:int}{}" }
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declare i32 @runtime.getFuncPtr(i8*, i32, %runtime.typecodeID*, i8*, i8*)
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declare i32 @runtime.makeGoroutine(i32, i8*, i8*)
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declare void @runtime.nilPanic(i8*, i8*)
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declare i1 @runtime.isnil(i8*, i8*, i8*)
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declare void @"main$1"(i32, i8*, i8*)
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declare void @"main$2"(i32, i8*, i8*)
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declare void @funcInt8(i8, i8*, i8*)
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declare void @func1Uint8(i8, i8*, i8*)
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declare void @func2Uint8(i8, i8*, i8*)
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; Call a function of which only one function with this signature is used as a
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; function value. This means that lowering it to IR is trivial: simply check
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; whether the func value is nil, and if not, call that one function directly.
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define void @runFunc1(i8*, i32, i8, i8* %context, i8* %parentHandle) {
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entry:
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%3 = call i32 @runtime.getFuncPtr(i8* %0, i32 %1, %runtime.typecodeID* @"reflect/types.type:func:{basic:int8}{}", i8* undef, i8* null)
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%4 = inttoptr i32 %3 to void (i8, i8*, i8*)*
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%5 = bitcast void (i8, i8*, i8*)* %4 to i8*
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%6 = call i1 @runtime.isnil(i8* %5, i8* undef, i8* null)
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br i1 %6, label %fpcall.nil, label %fpcall.next
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fpcall.nil:
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call void @runtime.nilPanic(i8* undef, i8* null)
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unreachable
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fpcall.next:
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call void %4(i8 %2, i8* %0, i8* undef)
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ret void
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}
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; There are two functions with this signature used in a func value. That means
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; that we'll have to check at runtime which of the two it is (or whether the
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; func value is nil). This call will thus be lowered to a switch statement.
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define void @runFunc2(i8*, i32, i8, i8* %context, i8* %parentHandle) {
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entry:
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%3 = call i32 @runtime.getFuncPtr(i8* %0, i32 %1, %runtime.typecodeID* @"reflect/types.type:func:{basic:uint8}{}", i8* undef, i8* null)
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%4 = inttoptr i32 %3 to void (i8, i8*, i8*)*
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%5 = bitcast void (i8, i8*, i8*)* %4 to i8*
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%6 = call i1 @runtime.isnil(i8* %5, i8* undef, i8* null)
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br i1 %6, label %fpcall.nil, label %fpcall.next
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fpcall.nil:
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call void @runtime.nilPanic(i8* undef, i8* null)
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unreachable
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fpcall.next:
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call void %4(i8 %2, i8* %0, i8* undef)
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ret void
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}
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; Special case for runtime.makeGoroutine.
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define void @sleepFuncValue(i8*, i32, i8* nocapture readnone %context, i8* nocapture readnone %parentHandle) {
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entry:
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%2 = call i32 @runtime.getFuncPtr(i8* %0, i32 %1, %runtime.typecodeID* @"reflect/types.type:func:{basic:int}{}", i8* undef, i8* null)
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%3 = call i32 @runtime.makeGoroutine(i32 %2, i8* undef, i8* null)
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%4 = inttoptr i32 %3 to void (i32, i8*, i8*)*
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call void %4(i32 8, i8* %0, i8* null)
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ret void
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}
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+121
@@ -0,0 +1,121 @@
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target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
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target triple = "wasm32-unknown-unknown-wasm"
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%runtime.typecodeID = type { %runtime.typecodeID*, i32 }
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%runtime.funcValueWithSignature = type { i32, %runtime.typecodeID* }
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@"reflect/types.type:func:{basic:int8}{}" = external constant %runtime.typecodeID
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@"reflect/types.type:func:{basic:uint8}{}" = external constant %runtime.typecodeID
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@"reflect/types.type:func:{basic:int}{}" = external constant %runtime.typecodeID
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@"funcInt8$withSignature" = constant %runtime.funcValueWithSignature { i32 ptrtoint (void (i8, i8*, i8*)* @funcInt8 to i32), %runtime.typecodeID* @"reflect/types.type:func:{basic:int8}{}" }
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@"func1Uint8$withSignature" = constant %runtime.funcValueWithSignature { i32 ptrtoint (void (i8, i8*, i8*)* @func1Uint8 to i32), %runtime.typecodeID* @"reflect/types.type:func:{basic:uint8}{}" }
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@"func2Uint8$withSignature" = constant %runtime.funcValueWithSignature { i32 ptrtoint (void (i8, i8*, i8*)* @func2Uint8 to i32), %runtime.typecodeID* @"reflect/types.type:func:{basic:uint8}{}" }
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@"main$withSignature" = constant %runtime.funcValueWithSignature { i32 ptrtoint (void (i32, i8*, i8*)* @"main$1" to i32), %runtime.typecodeID* @"reflect/types.type:func:{basic:int}{}" }
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@"main$2$withSignature" = constant %runtime.funcValueWithSignature { i32 ptrtoint (void (i32, i8*, i8*)* @"main$2" to i32), %runtime.typecodeID* @"reflect/types.type:func:{basic:int}{}" }
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declare i32 @runtime.getFuncPtr(i8*, i32, %runtime.typecodeID*, i8*, i8*)
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declare i32 @runtime.makeGoroutine(i32, i8*, i8*)
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declare void @runtime.nilPanic(i8*, i8*)
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declare i1 @runtime.isnil(i8*, i8*, i8*)
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declare void @"main$1"(i32, i8*, i8*)
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declare void @"main$2"(i32, i8*, i8*)
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declare void @funcInt8(i8, i8*, i8*)
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declare void @func1Uint8(i8, i8*, i8*)
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declare void @func2Uint8(i8, i8*, i8*)
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; Call a function of which only one function with this signature is used as a
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; function value. This means that lowering it to IR is trivial: simply check
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; whether the func value is nil, and if not, call that one function directly.
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define void @runFunc1(i8*, i32, i8, i8* %context, i8* %parentHandle) {
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entry:
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%3 = icmp eq i32 %1, 0
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%4 = select i1 %3, void (i8, i8*, i8*)* null, void (i8, i8*, i8*)* @funcInt8
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%5 = bitcast void (i8, i8*, i8*)* %4 to i8*
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%6 = call i1 @runtime.isnil(i8* %5, i8* undef, i8* null)
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br i1 %6, label %fpcall.nil, label %fpcall.next
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fpcall.nil:
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call void @runtime.nilPanic(i8* undef, i8* null)
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unreachable
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fpcall.next:
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call void %4(i8 %2, i8* %0, i8* undef)
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ret void
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}
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; There are two functions with this signature used in a func value. That means
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; that we'll have to check at runtime which of the two it is (or whether the
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; func value is nil). This call will thus be lowered to a switch statement.
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define void @runFunc2(i8*, i32, i8, i8* %context, i8* %parentHandle) {
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entry:
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br i1 false, label %fpcall.nil, label %fpcall.next
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fpcall.nil:
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call void @runtime.nilPanic(i8* undef, i8* null)
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unreachable
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fpcall.next:
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switch i32 %1, label %func.default [
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i32 0, label %func.nil
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i32 1, label %func.call1
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i32 2, label %func.call2
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]
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func.nil:
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call void @runtime.nilPanic(i8* undef, i8* null)
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unreachable
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func.call1:
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call void @func1Uint8(i8 %2, i8* %0, i8* undef)
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br label %func.next
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func.call2:
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call void @func2Uint8(i8 %2, i8* %0, i8* undef)
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br label %func.next
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func.next:
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ret void
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func.default:
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unreachable
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}
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; Special case for runtime.makeGoroutine.
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define void @sleepFuncValue(i8*, i32, i8* nocapture readnone %context, i8* nocapture readnone %parentHandle) {
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entry:
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switch i32 %1, label %func.default [
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i32 0, label %func.nil
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i32 1, label %func.call1
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i32 2, label %func.call2
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]
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func.nil:
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call void @runtime.nilPanic(i8* undef, i8* null)
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unreachable
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func.call1:
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%2 = call i32 @runtime.makeGoroutine(i32 ptrtoint (void (i32, i8*, i8*)* @"main$1" to i32), i8* undef, i8* null)
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%3 = inttoptr i32 %2 to void (i32, i8*, i8*)*
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call void %3(i32 8, i8* %0, i8* null)
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br label %func.next
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func.call2:
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%4 = call i32 @runtime.makeGoroutine(i32 ptrtoint (void (i32, i8*, i8*)* @"main$2" to i32), i8* undef, i8* null)
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%5 = inttoptr i32 %4 to void (i32, i8*, i8*)*
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call void %5(i32 8, i8* %0, i8* null)
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br label %func.next
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func.next:
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ret void
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func.default:
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unreachable
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}
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