Disable statistics on Release builds and move tests that depend on -stats.

Summary:
Statistics are still available in Release+Asserts (any +Asserts builds),
and stats can also be turned on with LLVM_ENABLE_STATS.

Move some of the FastISel stats that were moved under DEBUG()
back out of DEBUG(), since stats are disabled across the board now.

Many tests depend on grepping "-stats" output.  Move those into
a orig_dir/Stats/. so that they can be marked as unsupported
when building without statistics.

Differential Revision: http://llvm-reviews.chandlerc.com/D486

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176733 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 44 insertions, 0 deletions

diff --git a/test/Transforms/LoopUnroll/Stats/runtime-loop3.ll b/test/Transforms/LoopUnroll/Stats/runtime-loop3.ll
new file mode 100644
index 0000000000..55cf22373e
--- /dev/null
+++ b/test/Transforms/LoopUnroll/Stats/runtime-loop3.ll
@@ -0,0 +1,44 @@
+; RUN: opt < %s -disable-output -stats -loop-unroll -unroll-runtime -unroll-threshold=400 -info-output-file - | FileCheck %s --check-prefix=STATS
+
+; Test that nested loops can be unrolled.  We need to increase threshold to do it
+
+; STATS: 2 loop-unroll - Number of loops unrolled (completely or otherwise)
+
+define i32 @nested(i32* nocapture %a, i32 %n, i32 %m) nounwind uwtable readonly {
+entry:
+  %cmp11 = icmp sgt i32 %n, 0
+  br i1 %cmp11, label %for.cond1.preheader.lr.ph, label %for.end7
+
+for.cond1.preheader.lr.ph:                        ; preds = %entry
+  %cmp28 = icmp sgt i32 %m, 0
+  br label %for.cond1.preheader
+
+for.cond1.preheader:                              ; preds = %for.inc5, %for.cond1.preheader.lr.ph
+  %indvars.iv16 = phi i64 [ 0, %for.cond1.preheader.lr.ph ], [ %indvars.iv.next17, %for.inc5 ]
+  %sum.012 = phi i32 [ 0, %for.cond1.preheader.lr.ph ], [ %sum.1.lcssa, %for.inc5 ]
+  br i1 %cmp28, label %for.body3, label %for.inc5
+
+for.body3:                                        ; preds = %for.cond1.preheader, %for.body3
+  %indvars.iv = phi i64 [ %indvars.iv.next, %for.body3 ], [ 0, %for.cond1.preheader ]
+  %sum.19 = phi i32 [ %add4, %for.body3 ], [ %sum.012, %for.cond1.preheader ]
+  %0 = add nsw i64 %indvars.iv, %indvars.iv16
+  %arrayidx = getelementptr inbounds i32* %a, i64 %0
+  %1 = load i32* %arrayidx, align 4
+  %add4 = add nsw i32 %1, %sum.19
+  %indvars.iv.next = add i64 %indvars.iv, 1
+  %lftr.wideiv = trunc i64 %indvars.iv.next to i32
+  %exitcond = icmp eq i32 %lftr.wideiv, %m
+  br i1 %exitcond, label %for.inc5, label %for.body3
+
+for.inc5:                                         ; preds = %for.body3, %for.cond1.preheader
+  %sum.1.lcssa = phi i32 [ %sum.012, %for.cond1.preheader ], [ %add4, %for.body3 ]
+  %indvars.iv.next17 = add i64 %indvars.iv16, 1
+  %lftr.wideiv18 = trunc i64 %indvars.iv.next17 to i32
+  %exitcond19 = icmp eq i32 %lftr.wideiv18, %n
+  br i1 %exitcond19, label %for.end7, label %for.cond1.preheader
+
+for.end7:                                         ; preds = %for.inc5, %entry
+  %sum.0.lcssa = phi i32 [ 0, %entry ], [ %sum.1.lcssa, %for.inc5 ]
+  ret i32 %sum.0.lcssa
+}
+