67 lines
2.2 KiB
LLVM
67 lines
2.2 KiB
LLVM
; RUN: opt < %s -globalopt -S | FileCheck %s
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@c = global i8 42
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@i = internal global i8 42
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; CHECK: @ia = internal global i8 42
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@ia = internal alias i8, i8* @i
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@llvm.used = appending global [3 x i8*] [i8* bitcast (void ()* @fa to i8*), i8* bitcast (void ()* @f to i8*), i8* @ca], section "llvm.metadata"
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; CHECK-DAG: @llvm.used = appending global [3 x i8*] [i8* @ca, i8* bitcast (void ()* @f to i8*), i8* bitcast (void ()* @fa to i8*)], section "llvm.metadata"
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@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"
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; CHECK-DAG: @llvm.compiler.used = appending global [2 x i8*] [i8* bitcast (void ()* @fa3 to i8*), i8* @ia], section "llvm.metadata"
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@sameAsUsed = global [3 x i8*] [i8* bitcast (void ()* @fa to i8*), i8* bitcast (void ()* @f to i8*), i8* @ca]
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; CHECK-DAG: @sameAsUsed = local_unnamed_addr global [3 x i8*] [i8* bitcast (void ()* @f to i8*), i8* bitcast (void ()* @f to i8*), i8* @c]
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@other = global i32* bitcast (void ()* @fa to i32*)
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; CHECK-DAG: @other = local_unnamed_addr global i32* bitcast (void ()* @f to i32*)
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@fa = internal alias void (), void ()* @f
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; CHECK: @fa = internal alias void (), void ()* @f
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@fa2 = internal alias void (), void ()* @f
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; CHECK-NOT: @fa2
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@fa3 = internal alias void (), void ()* @f
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; CHECK: @fa3
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@ca = internal alias i8, i8* @c
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; CHECK: @ca = internal alias i8, i8* @c
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define void @f() {
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ret void
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}
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define i8* @g() {
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ret i8* bitcast (void ()* @fa to i8*);
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}
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define i8* @g2() {
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ret i8* bitcast (void ()* @fa2 to i8*);
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}
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define i8* @h() {
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ret i8* @ca
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}
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; Check that GlobalOpt doesn't try to resolve aliases with GEP operands.
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%struct.S = type { i32, i32, i32 }
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@s = global %struct.S { i32 1, i32 2, i32 3 }, align 4
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@alias1 = alias i32, i32* getelementptr inbounds (%struct.S, %struct.S* @s, i64 0, i32 1)
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@alias2 = alias i32, i32* getelementptr inbounds (%struct.S, %struct.S* @s, i64 0, i32 2)
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; CHECK: load i32, i32* @alias1, align 4
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; CHECK: load i32, i32* @alias2, align 4
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define i32 @foo1() {
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entry:
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%0 = load i32, i32* @alias1, align 4
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%1 = load i32, i32* @alias2, align 4
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%add = add nsw i32 %1, %0
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ret i32 %add
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}
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