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47 lines
1.1 KiB
LLVM
47 lines
1.1 KiB
LLVM
;
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; Test: ExternalConstant
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;
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; Description:
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; This regression test helps check whether the instruction combining
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; optimization pass correctly handles global variables which are marked
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; as external and constant.
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;
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; If a problem occurs, we should die on an assert(). Otherwise, we
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; should pass through the optimizer without failure.
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;
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; Extra code:
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; RUN: llvm-as < %s | opt -instcombine
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;
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target endian = little
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target pointersize = 32
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%silly = external constant int ; <int*> [#uses=1]
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implementation ; Functions:
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declare void %bzero(sbyte*, uint)
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declare void %bcopy(sbyte*, sbyte*, uint)
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declare int %bcmp(sbyte*, sbyte*, uint)
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declare int %fputs(sbyte*, sbyte*)
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declare int %fputs_unlocked(sbyte*, sbyte*)
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int %function(int %a.1) {
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entry: ; No predecessors!
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%a.0 = alloca int ; <int*> [#uses=2]
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%result = alloca int ; <int*> [#uses=2]
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store int %a.1, int* %a.0
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%tmp.0 = load int* %a.0 ; <int> [#uses=1]
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%tmp.1 = load int* %silly ; <int> [#uses=1]
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%tmp.2 = add int %tmp.0, %tmp.1 ; <int> [#uses=1]
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store int %tmp.2, int* %result
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br label %return
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return: ; preds = %entry
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%tmp.3 = load int* %result ; <int> [#uses=1]
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ret int %tmp.3
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}
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