llvm-6502/test/Transforms/GlobalOpt/alias-used.ll

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; RUN: opt < %s -globalopt -S | FileCheck %s
@c = global i8 42
@i = internal global i8 42
; CHECK: @ia = internal global i8 42
@ia = alias internal i8* @i
@llvm.used = appending global [3 x i8*] [i8* bitcast (void ()* @fa to i8*), i8* bitcast (void ()* @f to i8*), i8* @ca], section "llvm.metadata"
; CHECK-DAG: @llvm.used = appending global [3 x i8*] [i8* bitcast (void ()* @fa to i8*), i8* bitcast (void ()* @f to i8*), i8* @ca], section "llvm.metadata"
@llvm.compiler.used = appending global [4 x i8*] [i8* bitcast (void ()* @fa3 to i8*), i8* bitcast (void ()* @fa to i8*), i8* @ia, i8* @i], section "llvm.metadata"
; CHECK-DAG: @llvm.compiler.used = appending global [2 x i8*] [i8* bitcast (void ()* @fa3 to i8*), i8* @ia], section "llvm.metadata"
@sameAsUsed = global [3 x i8*] [i8* bitcast (void ()* @fa to i8*), i8* bitcast (void ()* @f to i8*), i8* @ca]
; CHECK-DAG: @sameAsUsed = global [3 x i8*] [i8* bitcast (void ()* @f to i8*), i8* bitcast (void ()* @f to i8*), i8* @c]
@other = global i32* bitcast (void ()* @fa to i32*)
; CHECK-DAG: @other = global i32* bitcast (void ()* @f to i32*)
@fa = alias internal void ()* @f
; CHECK: @fa = alias internal void ()* @f
@fa2 = alias internal void ()* @f
; CHECK-NOT: @fa2
@fa3 = alias internal void ()* @f
; CHECK: @fa3
@ca = alias internal i8* @c
; CHECK: @ca = alias internal i8* @c
define void @f() {
ret void
}
define i8* @g() {
ret i8* bitcast (void ()* @fa to i8*);
}
define i8* @g2() {
ret i8* bitcast (void ()* @fa2 to i8*);
}
define i8* @h() {
ret i8* @ca
}