31 lines · plain
1; RUN: opt -disable-loop-unrolling -O1 -S < %s | FileCheck %s2;3; Check loop unrolling metadata is honored despite automatic unrolling4; being disabled in the pass builder.5;6target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"7 8; CHECK-LABEL: @forced(9; CHECK: load10; CHECK: load11define void @forced(ptr nocapture %a) {12entry:13 br label %for.body14 15for.body:16 %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]17 %arrayidx = getelementptr inbounds i32, ptr %a, i64 %indvars.iv18 %0 = load i32, ptr %arrayidx, align 419 %inc = add nsw i32 %0, 120 store i32 %inc, ptr %arrayidx, align 421 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 122 %exitcond = icmp eq i64 %indvars.iv.next, 6423 br i1 %exitcond, label %for.end, label %for.body, !llvm.loop !024 25for.end:26 ret void27}28 29!0 = distinct !{!0, !{!"llvm.loop.unroll.enable"},30 !{!"llvm.loop.unroll.count", i32 2}}31