mirror of https://go.googlesource.com/go
22 lines
435 B
Go
22 lines
435 B
Go
// run
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// Test for 6g register move bug. The optimizer gets confused
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// about 32- vs 64-bit moves during splitContractIndex.
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// Issue 3918.
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package main
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func main() {
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const c = 0x123400005678
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index, offset := splitContractIndex(c)
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if index != (c&0xffffffff)>>5 || offset != c+1 {
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println("BUG", index, offset)
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}
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}
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func splitContractIndex(ce uint64) (index uint32, offset uint64) {
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h := uint32(ce)
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return h >> 5, ce + 1
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}
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