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https://github.com/c64scene-ar/llvm-6502.git
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3d47402f2e
In ELF and COFF an alias is just another offset in a section. There is no way to represent an alias to something in another file. In MachO, the spec has the N_INDR type which should allow for exactly that, but is not currently implemented. Given that it is specified but not implemented, we error in codegen to avoid miscompiling but don't reject aliases to declarations in the verifier to leave the option open of implementing it. In the past we have used alias to declarations as a way of implementing weakref, which is why it exists in some old tests which this patch updates. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194705 91177308-0d34-0410-b5e6-96231b3b80d8
49 lines
999 B
LLVM
49 lines
999 B
LLVM
; RUN: llc < %s -mtriple=i686-pc-linux-gnu -asm-verbose=false | FileCheck %s
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@bar = global i32 42
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; CHECK-DAG: .globl foo1
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@foo1 = alias i32* @bar
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; CHECK-DAG: .globl foo2
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@foo2 = alias i32* @bar
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%FunTy = type i32()
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define i32 @foo_f() {
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ret i32 0
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}
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; CHECK-DAG: .weak bar_f
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@bar_f = alias weak %FunTy* @foo_f
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@bar_l = alias linkonce_odr i32* @bar
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; CHECK-DAG: .weak bar_l
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@bar_i = alias internal i32* @bar
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; CHECK-DAG: .globl A
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@A = alias bitcast (i32* @bar to i64*)
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; CHECK-DAG: .globl bar_h
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; CHECK-DAG: .hidden bar_h
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@bar_h = hidden alias i32* @bar
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; CHECK-DAG: .globl bar_p
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; CHECK-DAG: .protected bar_p
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@bar_p = protected alias i32* @bar
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; CHECK-DAG: .globl test
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define i32 @test() {
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entry:
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%tmp = load i32* @foo1
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%tmp1 = load i32* @foo2
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%tmp0 = load i32* @bar_i
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%tmp2 = call i32 @foo_f()
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%tmp3 = add i32 %tmp, %tmp2
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%tmp4 = call %FunTy* @bar_f()
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%tmp5 = add i32 %tmp3, %tmp4
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%tmp6 = add i32 %tmp1, %tmp5
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%tmp7 = add i32 %tmp6, %tmp0
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ret i32 %tmp7
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}
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