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26 lines
759 B
LLVM
26 lines
759 B
LLVM
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; Ensure that llvm-reduce doesn't try to remove the first BB of a
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; function when the second BB has multiple predecessors, since that
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; results in invalid IR. This issue was fixed by:
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; https://reviews.llvm.org/D131026
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; RUN: llvm-reduce --delta-passes=basic-blocks --test %python --test-arg %p/Inputs/remove-bbs.py -abort-on-invalid-reduction %s -o %t
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define void @f(ptr %x0) {
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uninteresting:
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%x2 = alloca ptr, i32 0, align 8
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%x3 = alloca ptr, i32 0, align 8
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br label %interesting1
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; this block has 2 predecessors and can't become the entry block
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interesting1:
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%x5 = icmp ne ptr %x0, null
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br i1 %x5, label %interesting2, label %interesting1
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interesting2:
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store ptr null, ptr null, align 8
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br label %interesting3
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interesting3:
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ret void
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}
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