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c82b6a1ed2
when deciding whether to mark a function readnone/readonly. Since the pass is currently run before SROA, this may be quite helpful. Requested by Chris on IRC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57050 91177308-0d34-0410-b5e6-96231b3b80d8
11 lines
246 B
LLVM
11 lines
246 B
LLVM
; RUN: llvm-as < %s | opt -addreadattrs | llvm-dis | grep readnone | count 2
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declare i32 @g(i32*) readnone
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define i32 @f() {
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%x = alloca i32 ; <i32*> [#uses=2]
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store i32 0, i32* %x
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%y = call i32 @g(i32* %x) ; <i32> [#uses=1]
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ret i32 %y
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}
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