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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16446 91177308-0d34-0410-b5e6-96231b3b80d8
25 lines
640 B
Plaintext
25 lines
640 B
Plaintext
; RUN: llvm-as < %s | opt -instcombine -mem2reg -simplifycfg | llvm-dis | \
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; RUN: grep -v store | not grep 'int 1'
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; Test to make sure that instcombine does not accidentally propagate the load
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; into the PHI, which would break the program.
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int %test(bool %C) {
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entry:
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%X = alloca int
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%X2 = alloca int
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store int 1, int* %X
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store int 2, int* %X2
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br bool %C, label %cond_true.i, label %cond_continue.i
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cond_true.i:
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br label %cond_continue.i
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cond_continue.i:
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%mem_tmp.i.0 = phi int* [ %X, %cond_true.i ], [ %X2, %entry ]
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store int 3, int* %X
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%tmp.3 = load int* %mem_tmp.i.0
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ret int %tmp.3
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}
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