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Diffstat (limited to 'test/Transforms/IndVarSimplify/pr20680.ll')
| -rw-r--r-- | test/Transforms/IndVarSimplify/pr20680.ll | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/test/Transforms/IndVarSimplify/pr20680.ll b/test/Transforms/IndVarSimplify/pr20680.ll new file mode 100644 index 000000000000..88a7fd765d0b --- /dev/null +++ b/test/Transforms/IndVarSimplify/pr20680.ll @@ -0,0 +1,219 @@ +; RUN: opt < %s -indvars -S | FileCheck %s + +@a = common global i32 0, align 4 +@c = common global i32 0, align 4 +@b = common global i32 0, align 4 + +define void @f() { +; CHECK-LABEL: @f( +; CHECK-LABEL: entry: +; CHECK: br label %[[for_cond2_preheader:.*]] + +; CHECK: [[for_cond2_preheader]]: +; CHECK-NEXT: %[[indvars_iv:.*]] = phi i32 [ %[[indvars_iv_next:.*]], %[[for_inc13:.*]] ], [ -14, %entry ] +; br i1 {{.*}}, label %[[for_inc13]], label % +entry: + %0 = load i32* @a, align 4 + %tobool2 = icmp eq i32 %0, 0 + %1 = load i32* @a, align 4 + %tobool = icmp eq i32 %1, 0 + br label %for.cond2.preheader + +for.cond2.preheader: ; preds = %for.inc13, %entry + %storemerge15 = phi i8 [ -14, %entry ], [ %inc14, %for.inc13 ] + br i1 %tobool2, label %for.inc13, label %for.body3.lr.ph + +for.body3.lr.ph: ; preds = %for.cond2.preheader + %tobool5 = icmp eq i8 %storemerge15, 0 + %conv7 = sext i8 %storemerge15 to i32 + %2 = add nsw i32 %conv7, 1 + %3 = icmp ult i32 %2, 3 + %div = select i1 %3, i32 %conv7, i32 0 + br i1 %tobool5, label %for.body3.lr.ph.split.us, label %for.body3.lr.ph.for.body3.lr.ph.split_crit_edge + +for.body3.lr.ph.for.body3.lr.ph.split_crit_edge: ; preds = %for.body3.lr.ph + br label %for.body3.lr.ph.split + +for.body3.lr.ph.split.us: ; preds = %for.body3.lr.ph + br i1 %tobool, label %for.body3.lr.ph.split.us.split.us, label %for.body3.lr.ph.split.us.for.body3.lr.ph.split.us.split_crit_edge + +for.body3.lr.ph.split.us.for.body3.lr.ph.split.us.split_crit_edge: ; preds = %for.body3.lr.ph.split.us + br label %for.body3.lr.ph.split.us.split + +for.body3.lr.ph.split.us.split.us: ; preds = %for.body3.lr.ph.split.us + br label %for.body3.us.us + +for.body3.us.us: ; preds = %for.cond2.loopexit.us.us, %for.body3.lr.ph.split.us.split.us + br i1 true, label %cond.false.us.us, label %cond.end.us.us + +cond.false.us.us: ; preds = %for.body3.us.us + br label %cond.end.us.us + +cond.end.us.us: ; preds = %cond.false.us.us, %for.body3.us.us + %cond.us.us = phi i32 [ %div, %cond.false.us.us ], [ %conv7, %for.body3.us.us ] + %4 = load i32* @b, align 4 + %cmp91.us.us = icmp slt i32 %4, 1 + br i1 %cmp91.us.us, label %for.inc.lr.ph.us.us, label %for.cond2.loopexit.us.us + +for.cond2.loopexit.us.us: ; preds = %for.cond8.for.cond2.loopexit_crit_edge.us.us, %cond.end.us.us + br i1 true, label %for.cond2.for.inc13_crit_edge.us-lcssa.us.us-lcssa.us, label %for.body3.us.us + +for.inc.lr.ph.us.us: ; preds = %cond.end.us.us + br label %for.inc.us.us + +for.cond8.for.cond2.loopexit_crit_edge.us.us: ; preds = %for.inc.us.us + %inc.lcssa.us.us = phi i32 [ %inc.us.us, %for.inc.us.us ] + store i32 %inc.lcssa.us.us, i32* @b, align 4 + br label %for.cond2.loopexit.us.us + +for.inc.us.us: ; preds = %for.inc.us.us, %for.inc.lr.ph.us.us + %5 = phi i32 [ %4, %for.inc.lr.ph.us.us ], [ %inc.us.us, %for.inc.us.us ] + %inc.us.us = add nsw i32 %5, 1 + %cmp9.us.us = icmp slt i32 %inc.us.us, 1 + br i1 %cmp9.us.us, label %for.inc.us.us, label %for.cond8.for.cond2.loopexit_crit_edge.us.us + +for.cond2.for.inc13_crit_edge.us-lcssa.us.us-lcssa.us: ; preds = %for.cond2.loopexit.us.us + %cond.lcssa.ph.us.ph.us = phi i32 [ %cond.us.us, %for.cond2.loopexit.us.us ] + br label %for.cond2.for.inc13_crit_edge.us-lcssa.us + +for.body3.lr.ph.split.us.split: ; preds = %for.body3.lr.ph.split.us.for.body3.lr.ph.split.us.split_crit_edge + br label %for.body3.us + +for.body3.us: ; preds = %for.cond2.loopexit.us, %for.body3.lr.ph.split.us.split + br i1 true, label %cond.false.us, label %cond.end.us + +cond.false.us: ; preds = %for.body3.us + br label %cond.end.us + +cond.end.us: ; preds = %cond.false.us, %for.body3.us + %cond.us = phi i32 [ %div, %cond.false.us ], [ %conv7, %for.body3.us ] + %6 = load i32* @b, align 4 + %cmp91.us = icmp slt i32 %6, 1 + br i1 %cmp91.us, label %for.inc.lr.ph.us, label %for.cond2.loopexit.us + +for.inc.us: ; preds = %for.inc.lr.ph.us, %for.inc.us + %7 = phi i32 [ %6, %for.inc.lr.ph.us ], [ %inc.us, %for.inc.us ] + %inc.us = add nsw i32 %7, 1 + %cmp9.us = icmp slt i32 %inc.us, 1 + br i1 %cmp9.us, label %for.inc.us, label %for.cond8.for.cond2.loopexit_crit_edge.us + +for.cond2.loopexit.us: ; preds = %for.cond8.for.cond2.loopexit_crit_edge.us, %cond.end.us + br i1 false, label %for.cond2.for.inc13_crit_edge.us-lcssa.us.us-lcssa, label %for.body3.us + +for.inc.lr.ph.us: ; preds = %cond.end.us + br label %for.inc.us + +for.cond8.for.cond2.loopexit_crit_edge.us: ; preds = %for.inc.us + %inc.lcssa.us = phi i32 [ %inc.us, %for.inc.us ] + store i32 %inc.lcssa.us, i32* @b, align 4 + br label %for.cond2.loopexit.us + +for.cond2.for.inc13_crit_edge.us-lcssa.us.us-lcssa: ; preds = %for.cond2.loopexit.us + %cond.lcssa.ph.us.ph = phi i32 [ %cond.us, %for.cond2.loopexit.us ] + br label %for.cond2.for.inc13_crit_edge.us-lcssa.us + +for.cond2.for.inc13_crit_edge.us-lcssa.us: ; preds = %for.cond2.for.inc13_crit_edge.us-lcssa.us.us-lcssa, %for.cond2.for.inc13_crit_edge.us-lcssa.us.us-lcssa.us + %cond.lcssa.ph.us = phi i32 [ %cond.lcssa.ph.us.ph, %for.cond2.for.inc13_crit_edge.us-lcssa.us.us-lcssa ], [ %cond.lcssa.ph.us.ph.us, %for.cond2.for.inc13_crit_edge.us-lcssa.us.us-lcssa.us ] + br label %for.cond2.for.inc13_crit_edge + +for.body3.lr.ph.split: ; preds = %for.body3.lr.ph.for.body3.lr.ph.split_crit_edge + br i1 %tobool, label %for.body3.lr.ph.split.split.us, label %for.body3.lr.ph.split.for.body3.lr.ph.split.split_crit_edge + +for.body3.lr.ph.split.for.body3.lr.ph.split.split_crit_edge: ; preds = %for.body3.lr.ph.split + br label %for.body3.lr.ph.split.split + +for.body3.lr.ph.split.split.us: ; preds = %for.body3.lr.ph.split + br label %for.body3.us3 + +for.body3.us3: ; preds = %for.cond2.loopexit.us11, %for.body3.lr.ph.split.split.us + br i1 false, label %cond.false.us4, label %cond.end.us5 + +cond.false.us4: ; preds = %for.body3.us3 + br label %cond.end.us5 + +cond.end.us5: ; preds = %cond.false.us4, %for.body3.us3 + %cond.us6 = phi i32 [ %div, %cond.false.us4 ], [ %conv7, %for.body3.us3 ] + %8 = load i32* @b, align 4 + %cmp91.us7 = icmp slt i32 %8, 1 + br i1 %cmp91.us7, label %for.inc.lr.ph.us12, label %for.cond2.loopexit.us11 + +for.inc.us8: ; preds = %for.inc.lr.ph.us12, %for.inc.us8 + %9 = phi i32 [ %8, %for.inc.lr.ph.us12 ], [ %inc.us9, %for.inc.us8 ] + %inc.us9 = add nsw i32 %9, 1 + %cmp9.us10 = icmp slt i32 %inc.us9, 1 + br i1 %cmp9.us10, label %for.inc.us8, label %for.cond8.for.cond2.loopexit_crit_edge.us13 + +for.cond2.loopexit.us11: ; preds = %for.cond8.for.cond2.loopexit_crit_edge.us13, %cond.end.us5 + br i1 true, label %for.cond2.for.inc13_crit_edge.us-lcssa.us-lcssa.us, label %for.body3.us3 + +for.inc.lr.ph.us12: ; preds = %cond.end.us5 + br label %for.inc.us8 + +for.cond8.for.cond2.loopexit_crit_edge.us13: ; preds = %for.inc.us8 + %inc.lcssa.us14 = phi i32 [ %inc.us9, %for.inc.us8 ] + store i32 %inc.lcssa.us14, i32* @b, align 4 + br label %for.cond2.loopexit.us11 + +for.cond2.for.inc13_crit_edge.us-lcssa.us-lcssa.us: ; preds = %for.cond2.loopexit.us11 + %cond.lcssa.ph.ph.us = phi i32 [ %cond.us6, %for.cond2.loopexit.us11 ] + br label %for.cond2.for.inc13_crit_edge.us-lcssa + +for.body3.lr.ph.split.split: ; preds = %for.body3.lr.ph.split.for.body3.lr.ph.split.split_crit_edge + br label %for.body3 + +for.cond8.for.cond2.loopexit_crit_edge: ; preds = %for.inc + %inc.lcssa = phi i32 [ %inc, %for.inc ] + store i32 %inc.lcssa, i32* @b, align 4 + br label %for.cond2.loopexit + +for.cond2.loopexit: ; preds = %cond.end, %for.cond8.for.cond2.loopexit_crit_edge + br i1 false, label %for.cond2.for.inc13_crit_edge.us-lcssa.us-lcssa, label %for.body3 + +for.body3: ; preds = %for.cond2.loopexit, %for.body3.lr.ph.split.split + br i1 false, label %cond.false, label %cond.end + +cond.false: ; preds = %for.body3 + br label %cond.end + +cond.end: ; preds = %cond.false, %for.body3 + %cond = phi i32 [ %div, %cond.false ], [ %conv7, %for.body3 ] + %10 = load i32* @b, align 4 + %cmp91 = icmp slt i32 %10, 1 + br i1 %cmp91, label %for.inc.lr.ph, label %for.cond2.loopexit + +for.inc.lr.ph: ; preds = %cond.end + br label %for.inc + +for.inc: ; preds = %for.inc, %for.inc.lr.ph + %11 = phi i32 [ %10, %for.inc.lr.ph ], [ %inc, %for.inc ] + %inc = add nsw i32 %11, 1 + %cmp9 = icmp slt i32 %inc, 1 + br i1 %cmp9, label %for.inc, label %for.cond8.for.cond2.loopexit_crit_edge + +for.cond2.for.inc13_crit_edge.us-lcssa.us-lcssa: ; preds = %for.cond2.loopexit + %cond.lcssa.ph.ph = phi i32 [ %cond, %for.cond2.loopexit ] + br label %for.cond2.for.inc13_crit_edge.us-lcssa + +for.cond2.for.inc13_crit_edge.us-lcssa: ; preds = %for.cond2.for.inc13_crit_edge.us-lcssa.us-lcssa, %for.cond2.for.inc13_crit_edge.us-lcssa.us-lcssa.us + %cond.lcssa.ph = phi i32 [ %cond.lcssa.ph.ph, %for.cond2.for.inc13_crit_edge.us-lcssa.us-lcssa ], [ %cond.lcssa.ph.ph.us, %for.cond2.for.inc13_crit_edge.us-lcssa.us-lcssa.us ] + br label %for.cond2.for.inc13_crit_edge + +for.cond2.for.inc13_crit_edge: ; preds = %for.cond2.for.inc13_crit_edge.us-lcssa, %for.cond2.for.inc13_crit_edge.us-lcssa.us + %cond.lcssa = phi i32 [ %cond.lcssa.ph, %for.cond2.for.inc13_crit_edge.us-lcssa ], [ %cond.lcssa.ph.us, %for.cond2.for.inc13_crit_edge.us-lcssa.us ] + store i32 %cond.lcssa, i32* @c, align 4 + br label %for.inc13 + +; CHECK: [[for_inc13]]: +; CHECK-NEXT: %[[indvars_iv_next]] = add nuw nsw i32 %[[indvars_iv]], 1 +; CHECK-NEXT: %[[exitcond4:.*]] = icmp ne i32 %[[indvars_iv]], -1 +; CHECK-NEXT: br i1 %[[exitcond4]], label %[[for_cond2_preheader]], label %[[for_end15:.*]] +for.inc13: ; preds = %for.cond2.for.inc13_crit_edge, %for.cond2.preheader + %inc14 = add i8 %storemerge15, 1 + %cmp = icmp ugt i8 %inc14, 50 + br i1 %cmp, label %for.cond2.preheader, label %for.end15 + +; CHECK: [[for_end15]]: +; CHECK-NEXT: ret void +for.end15: ; preds = %for.inc13 + ret void +} |