diff options
Diffstat (limited to 'llvm/test/Analysis/ScalarEvolution/nsw.ll')
| -rw-r--r-- | llvm/test/Analysis/ScalarEvolution/nsw.ll | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/llvm/test/Analysis/ScalarEvolution/nsw.ll b/llvm/test/Analysis/ScalarEvolution/nsw.ll index 010cf604a87..9d8e2b62a9d 100644 --- a/llvm/test/Analysis/ScalarEvolution/nsw.ll +++ b/llvm/test/Analysis/ScalarEvolution/nsw.ll @@ -76,3 +76,31 @@ for.cond.for.end_crit_edge.i.i: ; preds = %for.body.i.i _ZSt4fillIPiiEvT_S1_RKT0_.exit: ; preds = %entry, %for.cond.for.end_crit_edge.i.i ret void } + +; Various checks for inbounds geps. +define void @test3(i32* %begin, i32* %end) nounwind ssp { +entry: + %cmp7.i.i = icmp eq i32* %begin, %end + br i1 %cmp7.i.i, label %_ZSt4fillIPiiEvT_S1_RKT0_.exit, label %for.body.i.i + +for.body.i.i: ; preds = %entry, %for.body.i.i + %indvar.i.i = phi i64 [ %tmp, %for.body.i.i ], [ 0, %entry ] +; CHECK: %indvar.i.i +; CHECK: {0,+,1}<nuw><nsw><%for.body.i.i> + %tmp = add nsw i64 %indvar.i.i, 1 +; CHECK: %tmp = +; CHECK: {1,+,1}<nuw><nsw><%for.body.i.i> + %ptrincdec.i.i = getelementptr inbounds i32* %begin, i64 %tmp +; CHECK: %ptrincdec.i.i = +; CHECK: {(4 + %begin),+,4}<nsw><%for.body.i.i> + %__first.addr.08.i.i = getelementptr inbounds i32* %begin, i64 %indvar.i.i +; CHECK: %__first.addr.08.i.i +; CHECK: {%begin,+,4}<nsw><%for.body.i.i> + store i32 0, i32* %__first.addr.08.i.i, align 4 + %cmp.i.i = icmp eq i32* %ptrincdec.i.i, %end + br i1 %cmp.i.i, label %_ZSt4fillIPiiEvT_S1_RKT0_.exit, label %for.body.i.i +; CHECK: Loop %for.body.i.i: Unpredictable backedge-taken count. +; CHECK: Loop %for.body.i.i: Unpredictable max backedge-taken count. +_ZSt4fillIPiiEvT_S1_RKT0_.exit: ; preds = %for.body.i.i, %entry + ret void +}
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