After investigation by @asbirlea, the issue that caused the revert appears to be an issue in the original source, rather than a problem with the compiler. This patch enables MemorySSA DSE again. This reverts commit 915310bf14cbac58a81fd60e0fa9dc8d341108e2.
26 lines
499 B
LLVM
26 lines
499 B
LLVM
; RUN: opt -dse -disable-output < %s
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; test that we don't crash
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declare void @bar()
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define void @foo() {
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bb1:
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%memtmp3.i = alloca [21 x i8], align 1
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%0 = getelementptr inbounds [21 x i8], [21 x i8]* %memtmp3.i, i64 0, i64 0
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br label %bb3
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bb2:
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call void @llvm.lifetime.end.p0i8(i64 -1, i8* %0)
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br label %bb3
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bb3:
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call void @bar()
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call void @llvm.lifetime.end.p0i8(i64 -1, i8* %0)
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br label %bb4
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bb4:
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ret void
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}
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declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture) nounwind
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