| ; RUN: llc < %s -verify-coalescing |
| ; PR12911 |
| target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64" |
| target triple = "x86_64-apple-macosx10.7.0" |
| |
| @d = common global i32 0, align 4 |
| @c = common global i32 0, align 4 |
| @b = common global i32 0, align 4 |
| @h = common global i32 0, align 4 |
| @f = common global i32 0, align 4 |
| @g = common global i32 0, align 4 |
| @a = common global i16 0, align 2 |
| @e = common global i32 0, align 4 |
| |
| define void @fn1() nounwind uwtable ssp { |
| entry: |
| %0 = load i32* @d, align 4 |
| %tobool72 = icmp eq i32 %0, 0 |
| br i1 %tobool72, label %for.end32, label %for.cond1.preheader.lr.ph |
| |
| for.cond1.preheader.lr.ph: ; preds = %entry |
| %1 = load i32* @c, align 4 |
| %tobool2 = icmp eq i32 %1, 0 |
| %2 = load i32* @b, align 4 |
| %cmp = icmp sgt i32 %2, 0 |
| %conv = zext i1 %cmp to i32 |
| %3 = load i32* @g, align 4 |
| %tobool4 = icmp eq i32 %3, 0 |
| %4 = load i16* @a, align 2 |
| %tobool9 = icmp eq i16 %4, 0 |
| br label %for.cond1.preheader |
| |
| for.cond1.preheader: ; preds = %for.cond25.loopexit.us-lcssa.us-lcssa, %if.end.us50, %if.end.us, %if.end.us.us, %for.cond1.preheader.lr.ph |
| %j.073 = phi i32 [ undef, %for.cond1.preheader.lr.ph ], [ %j.1.us.us, %if.end.us.us ], [ %j.1.us, %if.end.us ], [ %j.073, %for.cond25.loopexit.us-lcssa.us-lcssa ], [ %j.1.us36, %if.end.us50 ] |
| br i1 %tobool2, label %for.cond1.preheader.split.us, label %for.cond1.preheader.for.cond1.preheader.split_crit_edge |
| |
| for.cond1.preheader.for.cond1.preheader.split_crit_edge: ; preds = %for.cond1.preheader |
| br i1 %tobool9, label %if.end.us50, label %for.cond1.preheader.split.for.cond1.preheader.split.split_crit_edge |
| |
| for.cond1.preheader.split.us: ; preds = %for.cond1.preheader |
| br i1 %tobool9, label %cond.end.us.us, label %cond.end.us |
| |
| cond.false18.us.us: ; preds = %if.end.us.us |
| %5 = load i32* @f, align 4 |
| %sext76 = shl i32 %5, 16 |
| %phitmp75 = ashr exact i32 %sext76, 16 |
| br label %cond.end.us.us |
| |
| if.end.us.us: ; preds = %cond.end.us.us, %if.then.us.us |
| br i1 %tobool4, label %cond.false18.us.us, label %for.cond1.preheader |
| |
| if.then.us.us: ; preds = %cond.end.us.us |
| store i32 0, i32* @f, align 4 |
| br label %if.end.us.us |
| |
| cond.end.us.us: ; preds = %cond.false18.us.us, %for.cond1.preheader.split.us |
| %j.1.us.us = phi i32 [ %j.073, %for.cond1.preheader.split.us ], [ %phitmp75, %cond.false18.us.us ] |
| store i32 %conv, i32* @h, align 4 |
| br i1 %cmp, label %if.then.us.us, label %if.end.us.us |
| |
| cond.end21.us: ; preds = %land.lhs.true12.us, %cond.false18.us |
| %cond22.us = phi i16 [ %add.us, %cond.false18.us ], [ %4, %land.lhs.true12.us ] |
| %conv24.us = sext i16 %cond22.us to i32 |
| br label %cond.end.us |
| |
| cond.false18.us: ; preds = %if.end6.us, %land.lhs.true12.us |
| %add.us = add i16 %4, %conv7.us |
| br label %cond.end21.us |
| |
| land.lhs.true12.us: ; preds = %if.end6.us |
| %conv10.us = sext i16 %conv7.us to i32 |
| %sub.us = sub nsw i32 0, %conv10.us |
| %cmp14.us = icmp slt i32 %sub.us, 1 |
| br i1 %cmp14.us, label %cond.end21.us, label %cond.false18.us |
| |
| if.end6.us: ; preds = %if.end.us |
| %6 = load i32* @f, align 4 |
| %conv7.us = trunc i32 %6 to i16 |
| %tobool11.us = icmp eq i16 %conv7.us, 0 |
| br i1 %tobool11.us, label %cond.false18.us, label %land.lhs.true12.us |
| |
| if.end.us: ; preds = %cond.end.us, %if.then.us |
| br i1 %tobool4, label %if.end6.us, label %for.cond1.preheader |
| |
| if.then.us: ; preds = %cond.end.us |
| store i32 0, i32* @f, align 4 |
| br label %if.end.us |
| |
| cond.end.us: ; preds = %cond.end21.us, %for.cond1.preheader.split.us |
| %j.1.us = phi i32 [ %conv24.us, %cond.end21.us ], [ %j.073, %for.cond1.preheader.split.us ] |
| store i32 %conv, i32* @h, align 4 |
| br i1 %cmp, label %if.then.us, label %if.end.us |
| |
| for.cond1.preheader.split.for.cond1.preheader.split.split_crit_edge: ; preds = %for.cond1.preheader.for.cond1.preheader.split_crit_edge |
| br i1 %tobool4, label %if.end6.us65, label %for.cond25.loopexit.us-lcssa.us-lcssa |
| |
| cond.false18.us40: ; preds = %if.end.us50 |
| %7 = load i32* @f, align 4 |
| %sext = shl i32 %7, 16 |
| %phitmp = ashr exact i32 %sext, 16 |
| br label %if.end.us50 |
| |
| if.end.us50: ; preds = %cond.false18.us40, %for.cond1.preheader.for.cond1.preheader.split_crit_edge |
| %j.1.us36 = phi i32 [ %j.073, %for.cond1.preheader.for.cond1.preheader.split_crit_edge ], [ %phitmp, %cond.false18.us40 ] |
| store i32 0, i32* @h, align 4 |
| br i1 %tobool4, label %cond.false18.us40, label %for.cond1.preheader |
| |
| if.end6.us65: ; preds = %if.end6.us65, %for.cond1.preheader.split.for.cond1.preheader.split.split_crit_edge |
| store i32 0, i32* @h, align 4 |
| br label %if.end6.us65 |
| |
| for.cond25.loopexit.us-lcssa.us-lcssa: ; preds = %for.cond1.preheader.split.for.cond1.preheader.split.split_crit_edge |
| store i32 0, i32* @h, align 4 |
| br label %for.cond1.preheader |
| |
| for.end32: ; preds = %entry |
| ret void |
| } |