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llvm source #1
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clang (assertions trunk)
clang (trunk)
clang 10.0.0
clang 10.0.1
clang 11.0.0
clang 11.0.1
clang 12.0.0
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llc (assertions trunk)
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opt (assertions trunk)
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opt 10.0.0
opt 10.0.1
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opt 11.0.1
opt 12.0.0
opt 12.0.1
opt 13.0.0
opt 14.0.0
opt 15.0.0
opt 16.0.0
opt 17.0.1
opt 18.1.0
opt 3.2
opt 3.3
opt 3.9.1
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Source code
target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128" target triple = "aarch64-none-unknown-eabi" define i16 @add(i32 noundef %n, ptr nocapture noundef readonly %C, i16 noundef %B) { entry: %cmp36.not = icmp eq i32 %n, 0 br i1 %cmp36.not, label %for.end17, label %for.cond1.preheader.lr.ph for.cond1.preheader.lr.ph: ; preds = %entry %conv = sext i16 %B to i32 %0 = zext i32 %n to i64 %tripcount = mul nuw i64 %0, %0 %xtraiter = and i64 %tripcount, 1 %1 = icmp ult i64 %tripcount, 4 br i1 %1, label %for.end17.loopexit.unr-lcssa, label %for.cond1.preheader.lr.ph.new for.cond1.preheader.lr.ph.new: ; preds = %for.cond1.preheader.lr.ph %unroll_iter = and i64 %tripcount, -4 br label %for.cond1.preheader for.cond1.preheader: ; preds = %for.cond1.preheader, %for.cond1.preheader.lr.ph.new %indvar42 = phi i64 [ 0, %for.cond1.preheader.lr.ph.new ], [ %indvar.next43.3, %for.cond1.preheader ] %r.039 = phi i16 [ 0, %for.cond1.preheader.lr.ph.new ], [ %r.2.3, %for.cond1.preheader ] %p.038 = phi i32 [ 0, %for.cond1.preheader.lr.ph.new ], [ %5, %for.cond1.preheader ] %tmp.037 = phi i32 [ 0, %for.cond1.preheader.lr.ph.new ], [ %tmp.2.3, %for.cond1.preheader ] %idxprom = and i64 %indvar42, 4294967292 %arrayidx = getelementptr inbounds i32, ptr %C, i64 %idxprom %2 = load i32, ptr %arrayidx, align 4 %add4 = add nsw i32 %2, %tmp.037 %cmp5 = icmp sgt i32 %add4, %conv %cmp10 = icmp sgt i32 %2, %p.038 %cond = zext i1 %cmp10 to i16 %tmp.2 = select i1 %cmp5, i32 0, i32 %add4 %r.2.v = select i1 %cmp5, i16 10, i16 %cond %r.2 = add i16 %r.2.v, %r.039 %idxprom.1 = or i64 %idxprom, 1 %arrayidx.1 = getelementptr inbounds i32, ptr %C, i64 %idxprom.1 %3 = load i32, ptr %arrayidx.1, align 4 %add4.1 = add nsw i32 %tmp.2, %3 %cmp5.1 = icmp sgt i32 %add4.1, %conv %cmp10.1 = icmp sgt i32 %3, %2 %cond.1 = zext i1 %cmp10.1 to i16 %tmp.2.1 = select i1 %cmp5.1, i32 0, i32 %add4.1 %r.2.v.1 = select i1 %cmp5.1, i16 10, i16 %cond.1 %r.2.1 = add i16 %r.2, %r.2.v.1 %idxprom.2 = or i64 %idxprom, 2 %arrayidx.2 = getelementptr inbounds i32, ptr %C, i64 %idxprom.2 %4 = load i32, ptr %arrayidx.2, align 4 %add4.2 = add nsw i32 %tmp.2.1, %4 %cmp5.2 = icmp sgt i32 %add4.2, %conv %cmp10.2 = icmp sgt i32 %4, %3 %cond.2 = zext i1 %cmp10.2 to i16 %tmp.2.2 = select i1 %cmp5.2, i32 0, i32 %add4.2 %r.2.v.2 = select i1 %cmp5.2, i16 10, i16 %cond.2 %r.2.2 = add i16 %r.2.1, %r.2.v.2 %idxprom.3 = or i64 %idxprom, 3 %arrayidx.3 = getelementptr inbounds i32, ptr %C, i64 %idxprom.3 %5 = load i32, ptr %arrayidx.3, align 4 %add4.3 = add nsw i32 %tmp.2.2, %5 %cmp5.3 = icmp sgt i32 %add4.3, %conv %cmp10.3 = icmp sgt i32 %5, %4 %cond.3 = zext i1 %cmp10.3 to i16 %tmp.2.3 = select i1 %cmp5.3, i32 0, i32 %add4.3 %r.2.v.3 = select i1 %cmp5.3, i16 10, i16 %cond.3 %r.2.3 = add i16 %r.2.2, %r.2.v.3 %indvar.next43.3 = add i64 %indvar42, 4 %niter.ncmp.3 = icmp eq i64 %indvar.next43.3, %unroll_iter br i1 %niter.ncmp.3, label %for.end17.loopexit.unr-lcssa.loopexit, label %for.cond1.preheader for.end17.loopexit.unr-lcssa.loopexit: ; preds = %for.cond1.preheader %6 = and i64 %tripcount, 4294967292 br label %for.end17.loopexit.unr-lcssa for.end17.loopexit.unr-lcssa: ; preds = %for.end17.loopexit.unr-lcssa.loopexit, %for.cond1.preheader.lr.ph %r.2.lcssa.ph = phi i16 [ undef, %for.cond1.preheader.lr.ph ], [ %r.2.3, %for.end17.loopexit.unr-lcssa.loopexit ] %indvar42.unr = phi i64 [ 0, %for.cond1.preheader.lr.ph ], [ %6, %for.end17.loopexit.unr-lcssa.loopexit ] %r.039.unr = phi i16 [ 0, %for.cond1.preheader.lr.ph ], [ %r.2.3, %for.end17.loopexit.unr-lcssa.loopexit ] %p.038.unr = phi i32 [ 0, %for.cond1.preheader.lr.ph ], [ %5, %for.end17.loopexit.unr-lcssa.loopexit ] %tmp.037.unr = phi i32 [ 0, %for.cond1.preheader.lr.ph ], [ %tmp.2.3, %for.end17.loopexit.unr-lcssa.loopexit ] %lcmp.mod.not = icmp eq i64 %xtraiter, 0 br i1 %lcmp.mod.not, label %for.end17, label %for.cond1.preheader.epil for.cond1.preheader.epil: ; preds = %for.end17.loopexit.unr-lcssa %arrayidx.epil = getelementptr inbounds i32, ptr %C, i64 %indvar42.unr %7 = load i32, ptr %arrayidx.epil, align 4 %add4.epil = add nsw i32 %7, %tmp.037.unr %cmp5.epil = icmp sgt i32 %add4.epil, %conv %cmp10.epil = icmp sgt i32 %7, %p.038.unr %cond.epil = zext i1 %cmp10.epil to i16 %r.2.v.epil = select i1 %cmp5.epil, i16 10, i16 %cond.epil %r.2.epil = add i16 %r.2.v.epil, %r.039.unr br label %for.end17 for.end17: ; preds = %for.cond1.preheader.epil, %for.end17.loopexit.unr-lcssa, %entry %r.0.lcssa = phi i16 [ 0, %entry ], [ %r.2.lcssa.ph, %for.end17.loopexit.unr-lcssa ], [ %r.2.epil, %for.cond1.preheader.epil ] ret i16 %r.0.lcssa }
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