internal-noalias.ll
1.81 KB
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; RUN: opt -S -passes=attributor -aa-pipeline='basic-aa' -attributor-disable=false -attributor-max-iterations-verify -attributor-annotate-decl-cs -attributor-max-iterations=5 < %s | FileCheck %s
define dso_local i32 @visible(i32* noalias %A, i32* noalias %B) #0 {
entry:
%call1 = call i32 @noalias_args(i32* %A, i32* %B)
%call2 = call i32 @noalias_args_argmem(i32* %A, i32* %B)
%add = add nsw i32 %call1, %call2
ret i32 %add
}
; CHECK: define private i32 @noalias_args(i32* nocapture nofree nonnull readonly align 4 dereferenceable(4) %A, i32* noalias nocapture nofree nonnull readonly align 4 dereferenceable(4) %B)
define private i32 @noalias_args(i32* %A, i32* %B) #0 {
entry:
%0 = load i32, i32* %A, align 4
%1 = load i32, i32* %B, align 4
%add = add nsw i32 %0, %1
%call = call i32 @noalias_args_argmem(i32* %A, i32* %B)
%add2 = add nsw i32 %add, %call
ret i32 %add2
}
; FIXME: Should be something like this.
; define internal i32 @noalias_args_argmem(i32* noalias nocapture readonly %A, i32* noalias nocapture readonly %B)
; CHECK: define internal i32 @noalias_args_argmem(i32* nocapture nofree nonnull readonly align 4 dereferenceable(4) %A, i32* nocapture nofree nonnull readonly align 4 dereferenceable(4) %B)
;
define internal i32 @noalias_args_argmem(i32* %A, i32* %B) #1 {
entry:
%0 = load i32, i32* %A, align 4
%1 = load i32, i32* %B, align 4
%add = add nsw i32 %0, %1
ret i32 %add
}
define dso_local i32 @visible_local(i32* %A) #0 {
entry:
%B = alloca i32, align 4
store i32 5, i32* %B, align 4
%call1 = call i32 @noalias_args(i32* %A, i32* nonnull %B)
%call2 = call i32 @noalias_args_argmem(i32* %A, i32* nonnull %B)
%add = add nsw i32 %call1, %call2
ret i32 %add
}
attributes #0 = { noinline nounwind uwtable willreturn }
attributes #1 = { argmemonly noinline nounwind uwtable willreturn}