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test/nilptr5_aix.go
38 строк
993 B
Cherry Mui
cmd/compile: duplicate nil check to two branches of write barrier
19 сен 2025, 17:13
19 сен 2025, 17:13
f9e61a9
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// errorcheck -0 -d=nil //go:build aix // Copyright 2018 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // Test that nil checks are removed. // Optimization is enabled. package p func f5(p *float32, q *float64, r *float32, s *float64) float64 { x := float64(*p) // ERROR "generated nil check" y := *q // ERROR "generated nil check" *r = 7 // ERROR "removed nil check" *s = 9 // ERROR "removed nil check" return x + y } type T [29]byte func f6(p, q *T) { x := *p // ERROR "generated nil check" *q = x // ERROR "removed nil check" } // make sure to remove nil check for memory move (issue #18003) func f8(t *[8]int) [8]int { return *t // ERROR "generated nil check" } // On AIX, a write nil check is removed, but a read nil check // remains (for the write barrier). func f9(x **int, y *int) { *x = y // ERROR "generated nil check" "removed nil check" }