; RUN: opt -simplifycfg -S < %s | FileCheck %s target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" target triple = "x86_64-unknown-linux-gnu" ; Function Attrs: norecurse nounwind uwtable define void @Test(i32* nocapture %res, i32* nocapture readnone %c, i32* nocapture readonly %d, i32* nocapture readonly %p) #0 { entry: br label %for.body ; CHECK-LABEL: @Test ; CHECK: load i32, i32* {{.*}}, align 4, !llvm.mem.parallel_loop_access !0 ; CHECK: load i32, i32* {{.*}}, align 4, !llvm.mem.parallel_loop_access !0 ; CHECK: store i32 {{.*}}, align 4, !llvm.mem.parallel_loop_access !0 ; CHECK-NOT: load ; CHECK-NOT: store for.body: ; preds = %cond.end, %entry %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %cond.end ] %arrayidx = getelementptr inbounds i32, i32* %p, i64 %indvars.iv %0 = load i32, i32* %arrayidx, align 4, !llvm.mem.parallel_loop_access !0 %cmp1 = icmp eq i32 %0, 0 br i1 %cmp1, label %cond.true, label %cond.false cond.false: ; preds = %for.body %arrayidx3 = getelementptr inbounds i32, i32* %res, i64 %indvars.iv %v = load i32, i32* %arrayidx3, align 4, !llvm.mem.parallel_loop_access !0 %arrayidx7 = getelementptr inbounds i32, i32* %d, i64 %indvars.iv %1 = load i32, i32* %arrayidx7, align 4, !llvm.mem.parallel_loop_access !0 %add = add nsw i32 %1, %v br label %cond.end cond.true: ; preds = %for.body %arrayidx4 = getelementptr inbounds i32, i32* %res, i64 %indvars.iv %w = load i32, i32* %arrayidx4, align 4, !llvm.mem.parallel_loop_access !0 %arrayidx8 = getelementptr inbounds i32, i32* %d, i64 %indvars.iv %2 = load i32, i32* %arrayidx8, align 4, !llvm.mem.parallel_loop_access !0 %add2 = add nsw i32 %2, %w br label %cond.end cond.end: ; preds = %for.body, %cond.false %cond = phi i32 [ %add, %cond.false ], [ %add2, %cond.true ] %arrayidx9 = getelementptr inbounds i32, i32* %res, i64 %indvars.iv store i32 %cond, i32* %arrayidx9, align 4, !llvm.mem.parallel_loop_access !0 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 %exitcond = icmp eq i64 %indvars.iv.next, 16 br i1 %exitcond, label %for.end, label %for.body, !llvm.loop !0 for.end: ; preds = %cond.end ret void } attributes #0 = { norecurse nounwind uwtable } !0 = distinct !{!0, !1} !1 = !{!"llvm.loop.vectorize.enable", i1 true}