eb34afde4b
Some instructions emitted by LLVM (like movaps) expect 16-byte alignment, while the allocator assumed that 8-byte alignment is good enough. TODO: this issue came to light with LLVM optimizing a complex128 store to the movaps instruction, which must be aligned. It looks like this means that the <2 x double> IR type is actually 16-byte aligned instead of 8-byte like a double. If this is the case, the alignment of complex numbers needs to be updated in the whole compiler.
13 строки
315 Б
Go
13 строки
315 Б
Go
package runtime
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const GOARCH = "amd64"
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// The bitness of the CPU (e.g. 8, 32, 64).
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const TargetBits = 64
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// Align a pointer.
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// Note that some amd64 instructions (like movaps) expect 16-byte aligned
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// memory, thus the result must be 16-byte aligned.
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func align(ptr uintptr) uintptr {
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return (ptr + 15) &^ 15
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}
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