diff options
Diffstat (limited to 'test/Transforms/LoopUnroll/PowerPC/a2-unrolling.ll')
-rw-r--r-- | test/Transforms/LoopUnroll/PowerPC/a2-unrolling.ll | 48 |
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 new file mode 100644 index 0000000..17c91e5 --- /dev/null +++ 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 + |