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Nia Waldvogel
a40586d092
The compiler now implements the copy builtin directly instead of calling sliceCopy. The length is calculated with the llvm.umax.* intrinsics, and the move is performed by llvm.memmove.*. Both of these operations are easily understood by LLVM's optimization passes. The type's alignment is also provided to llvm.memmove.*, which is useful when rewriting the move. Interp no longer needs to reimplement sliceCopy. Some edge case handling was implemented by sliceCopy but not llvm.memmove.*/llvm.memcpy.*. I copied this over, so copies of external slices should work now. Volatile moves/copies are now run at runtime by interp. There is a 4-byte size increase due to some confusing length logic in sendUSBPacket. I will look at sendUSBPacket in a future PR.
12 lines
347 B
LLVM
12 lines
347 B
LLVM
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64--linux"
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@uminResult = local_unnamed_addr global i32 12
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@sminResult = local_unnamed_addr global i32 -1
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@umaxResult = local_unnamed_addr global i32 -1
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@smaxResult = local_unnamed_addr global i32 12
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define void @runtime.initAll() local_unnamed_addr {
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ret void
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}
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