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-rw-r--r--test/Transforms/LoopUnroll/PowerPC/a2-unrolling.ll48
1 files changed, 48 insertions, 0 deletions
diff --git a/test/Transforms/LoopUnroll/PowerPC/a2-unrolling.ll b/test/Transforms/LoopUnroll/PowerPC/a2-unrolling.ll
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+++ b/test/Transforms/LoopUnroll/PowerPC/a2-unrolling.ll
@@ -0,0 +1,48 @@
+; RUN: opt < %s -S -mtriple=powerpc64-unknown-linux-gnu -mcpu=a2 -loop-unroll | FileCheck %s
+define void @unroll_opt_for_size() nounwind optsize {
+entry:
+ br label %loop
+
+loop:
+ %iv = phi i32 [ 0, %entry ], [ %inc, %loop ]
+ %inc = add i32 %iv, 1
+ %exitcnd = icmp uge i32 %inc, 1024
+ br i1 %exitcnd, label %exit, label %loop
+
+exit:
+ ret void
+}
+
+; CHECK-LABEL: @unroll_opt_for_size
+; CHECK: add
+; CHECK-NEXT: add
+; CHECK-NEXT: add
+; CHECK: icmp
+
+define i32 @test(i32* nocapture %a, i32 %n) nounwind uwtable readonly {
+entry:
+ %cmp1 = icmp eq i32 %n, 0
+ br i1 %cmp1, label %for.end, label %for.body
+
+for.body: ; preds = %for.body, %entry
+ %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
+ %sum.02 = phi i32 [ %add, %for.body ], [ 0, %entry ]
+ %arrayidx = getelementptr inbounds i32* %a, i64 %indvars.iv
+ %0 = load i32* %arrayidx, align 4
+ %add = add nsw i32 %0, %sum.02
+ %indvars.iv.next = add i64 %indvars.iv, 1
+ %lftr.wideiv = trunc i64 %indvars.iv.next to i32
+ %exitcond = icmp eq i32 %lftr.wideiv, %n
+ br i1 %exitcond, label %for.end, label %for.body
+
+for.end: ; preds = %for.body, %entry
+ %sum.0.lcssa = phi i32 [ 0, %entry ], [ %add, %for.body ]
+ ret i32 %sum.0.lcssa
+}
+
+; CHECK-LABEL: @test
+; CHECK: unr.cmp{{.*}}:
+; CHECK: for.body.unr{{.*}}:
+; CHECK: for.body:
+; CHECK: br i1 %exitcond.7, label %for.end.loopexit{{.*}}, label %for.body
+