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compiler: allow slices of empty structs.

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Fixes https://github.com/tinygo-org/tinygo/issues/2749
This commit is contained in:
Dan Kegel
2022-04-05 15:47:50 -07:00
committed by Ron Evans
parent 3dc1e403ea
commit 7af24c7864
2 changed files with 8 additions and 1 deletions
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compiler/compiler.go
+5 -1
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@@ -1554,7 +1554,11 @@ func (c *compilerContext) maxSliceSize(elementType llvm.Type) uint64 {
// Determine the maximum allowed size for a slice. The biggest possible
// pointer (starting from 0) would be maxPointerValue*sizeof(elementType) so
// divide by the element type to get the real maximum size.
maxSize := maxPointerValue / c.targetData.TypeAllocSize(elementType)
elementSize := c.targetData.TypeAllocSize(elementType)
if elementSize == 0 {
elementSize = 1
}
maxSize := maxPointerValue / elementSize
// len(slice) is an int. Make sure the length remains small enough to fit in
// an int.