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1eb0465fa5
Fixes #57097 Change-Id: I6ab659abbca1ae0ac8710674d39aec116fab0baa Reviewed-on: https://go-review.googlesource.com/c/go/+/455336 Reviewed-by: Keith Randall <khr@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Keith Randall <khr@golang.org>
43 lines
578 B
Go
43 lines
578 B
Go
// +build amd64
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// asmcheck -gcflags=-spectre=ret
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package codegen
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func CallFunc(f func()) {
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// amd64:`CALL\truntime.retpoline`
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f()
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}
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func CallInterface(x interface{ M() }) {
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// amd64:`CALL\truntime.retpoline`
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x.M()
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}
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// Check to make sure that jump tables are disabled
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// when retpoline is on. See issue 57097.
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func noJumpTables(x int) int {
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switch x {
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case 0:
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return 0
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case 1:
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return 1
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case 2:
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return 2
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case 3:
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return 3
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case 4:
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return 4
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case 5:
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return 5
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case 6:
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return 6
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case 7:
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return 7
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case 8:
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return 8
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case 9:
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return 9
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}
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return 10
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}
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