Source file test/codegen/clobberdeadreg.go
1 // asmcheck -gcflags=-clobberdeadreg 2 3 //go:build amd64 4 5 // Copyright 2021 The Go Authors. All rights reserved. 6 // Use of this source code is governed by a BSD-style 7 // license that can be found in the LICENSE file. 8 9 package codegen 10 11 type S struct { 12 a, b, c, d, e, f int 13 } 14 15 func F(a, b, c int, d S) { 16 // -2401018187971961171 is 0xdeaddeaddeaddead 17 // amd64:`MOVQ\t\$-2401018187971961171, AX`, `MOVQ\t\$-2401018187971961171, BX`, `MOVQ\t\$-2401018187971961171, CX` 18 // amd64:`MOVQ\t\$-2401018187971961171, DX`, `MOVQ\t\$-2401018187971961171, SI`, `MOVQ\t\$-2401018187971961171, DI` 19 // amd64:`MOVQ\t\$-2401018187971961171, R8`, `MOVQ\t\$-2401018187971961171, R9`, `MOVQ\t\$-2401018187971961171, R10` 20 // amd64:`MOVQ\t\$-2401018187971961171, R11`, `MOVQ\t\$-2401018187971961171, R12`, `MOVQ\t\$-2401018187971961171, R13` 21 // amd64:-`MOVQ\t\$-2401018187971961171, BP` // frame pointer is not clobbered 22 StackArgsCall([10]int{a, b, c}) 23 // amd64:`MOVQ\t\$-2401018187971961171, R12`, `MOVQ\t\$-2401018187971961171, R13`, `MOVQ\t\$-2401018187971961171, DX` 24 // amd64:-`MOVQ\t\$-2401018187971961171, AX`, -`MOVQ\t\$-2401018187971961171, R11` // register args are not clobbered 25 RegArgsCall(a, b, c, d) 26 } 27 28 //go:noinline 29 func StackArgsCall([10]int) {} 30 31 //go:noinline 32 //go:registerparams 33 func RegArgsCall(int, int, int, S) {} 34