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7b093a1c2f
functions. Make the function attributes pass add it to known library functions and when it can deduce it. llvm-svn: 185735
24 lines
478 B
LLVM
24 lines
478 B
LLVM
; RUN: opt < %s -functionattrs -S | FileCheck %s
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; CHECK: define i32* @a(i32** nocapture readonly %p)
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define i32* @a(i32** %p) {
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%tmp = load i32** %p
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ret i32* %tmp
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}
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; CHECK: define i32* @b(i32* %q)
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define i32* @b(i32 *%q) {
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%mem = alloca i32*
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store i32* %q, i32** %mem
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%tmp = call i32* @a(i32** %mem)
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ret i32* %tmp
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}
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; CHECK: define i32* @c(i32* readnone %r)
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@g = global i32 0
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define i32* @c(i32 *%r) {
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%a = icmp eq i32* %r, null
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store i32 1, i32* @g
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ret i32* %r
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}
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