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| author | Andrew Trick <atrick@apple.com> | 2011-03-15 00:37:00 +0000 |
|---|---|---|
| committer | Andrew Trick <atrick@apple.com> | 2011-03-15 00:37:00 +0000 |
| commit | c343c1e27eb1a8901aebbe732a2813150ff46a71 (patch) | |
| tree | 038199cc8588af6e01066a109363633f737185da /test/Analysis/ScalarEvolution/nsw.ll | |
| parent | 5edf24efac40062766c643e08f11bc509d373370 (diff) | |
| download | external_llvm-c343c1e27eb1a8901aebbe732a2813150ff46a71.zip external_llvm-c343c1e27eb1a8901aebbe732a2813150ff46a71.tar.gz external_llvm-c343c1e27eb1a8901aebbe732a2813150ff46a71.tar.bz2 | |
Propagate SCEV no-wrap flags whenever possible.
This needs review.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127638 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Analysis/ScalarEvolution/nsw.ll')
| -rw-r--r-- | test/Analysis/ScalarEvolution/nsw.ll | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/test/Analysis/ScalarEvolution/nsw.ll b/test/Analysis/ScalarEvolution/nsw.ll index 9d8e2b6..da35a6c 100644 --- a/test/Analysis/ScalarEvolution/nsw.ll +++ b/test/Analysis/ScalarEvolution/nsw.ll @@ -35,7 +35,7 @@ bb: ; preds = %bb1, %bb.nph bb1: ; preds = %bb %phitmp = sext i32 %tmp8 to i64 ; <i64> [#uses=1] ; CHECK: %phitmp -; CHECK-NEXT: --> {1,+,1}<%bb> +; CHECK-NEXT: --> {1,+,1}<nuw><nsw><%bb> %tmp9 = getelementptr double* %p, i64 %phitmp ; <double*> [#uses=1] ; CHECK: %tmp9 ; CHECK-NEXT: --> {(8 + %p),+,8}<%bb> @@ -62,11 +62,11 @@ for.body.lr.ph.i.i: ; preds = %entry for.body.i.i: ; preds = %for.body.i.i, %for.body.lr.ph.i.i %__first.addr.02.i.i = phi i32* [ %begin, %for.body.lr.ph.i.i ], [ %ptrincdec.i.i, %for.body.i.i ] ; CHECK: %__first.addr.02.i.i -; CHECK-NEXT: --> {%begin,+,4}<nsw><%for.body.i.i> +; CHECK-NEXT: --> {%begin,+,4}<nw><%for.body.i.i> store i32 0, i32* %__first.addr.02.i.i, align 4 %ptrincdec.i.i = getelementptr inbounds i32* %__first.addr.02.i.i, i64 1 ; CHECK: %ptrincdec.i.i -; CHECK-NEXT: --> {(4 + %begin),+,4}<nsw><%for.body.i.i> +; CHECK-NEXT: --> {(4 + %begin),+,4}<nw><%for.body.i.i> %cmp.i.i = icmp eq i32* %ptrincdec.i.i, %end br i1 %cmp.i.i, label %for.cond.for.end_crit_edge.i.i, label %for.body.i.i @@ -88,7 +88,7 @@ for.body.i.i: ; preds = %entry, %for.body.i. ; CHECK: %indvar.i.i ; CHECK: {0,+,1}<nuw><nsw><%for.body.i.i> %tmp = add nsw i64 %indvar.i.i, 1 -; CHECK: %tmp = +; CHECK: %tmp = ; CHECK: {1,+,1}<nuw><nsw><%for.body.i.i> %ptrincdec.i.i = getelementptr inbounds i32* %begin, i64 %tmp ; CHECK: %ptrincdec.i.i = @@ -99,8 +99,8 @@ for.body.i.i: ; preds = %entry, %for.body.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. +; CHECK: Loop %for.body.i.i: backedge-taken count is ((-4 + (-1 * %begin) + %end) /u 4) +; CHECK: Loop %for.body.i.i: max backedge-taken count is ((-4 + (-1 * %begin) + %end) /u 4) _ZSt4fillIPiiEvT_S1_RKT0_.exit: ; preds = %for.body.i.i, %entry ret void }
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