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runtime: require explicit GC layouts

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This commit is contained in:
Jake Bailey
2026-08-07 10:21:19 -07:00
committed by Ron Evans
parent 1a4cb2032e
commit a7360d5ad3
28 changed files with 279 additions and 108 deletions
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compiler/channel.go
+4 -2
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@@ -14,8 +14,10 @@ import (
)
func (b *builder) createMakeChan(expr *ssa.MakeChan) llvm.Value {
elementSize := b.targetData.TypeAllocSize(b.getLLVMType(expr.Type().Underlying().(*types.Chan).Elem()))
elementType := b.getLLVMType(expr.Type().Underlying().(*types.Chan).Elem())
elementSize := b.targetData.TypeAllocSize(elementType)
elementSizeValue := llvm.ConstInt(b.uintptrType, elementSize, false)
elementLayout := b.createObjectLayout(elementType, expr.Pos())
bufSize := b.getValue(expr.Size, getPos(expr))
b.createChanBoundsCheck(elementSize, bufSize, expr.Size.Type().Underlying().(*types.Basic), expr.Pos())
if bufSize.Type().IntTypeWidth() < b.uintptrType.IntTypeWidth() {
@@ -23,7 +25,7 @@ func (b *builder) createMakeChan(expr *ssa.MakeChan) llvm.Value {
} else if bufSize.Type().IntTypeWidth() > b.uintptrType.IntTypeWidth() {
bufSize = b.CreateTrunc(bufSize, b.uintptrType, "")
}
return b.createRuntimeCall("chanMake", []llvm.Value{elementSizeValue, bufSize}, "")
return b.createRuntimeCall("chanMake", []llvm.Value{elementSizeValue, bufSize, elementLayout}, "")
}
// createChanSend emits a pseudo chan send operation. It is lowered to the