[LICM] Check the number of divergent paths from loop header to target block

[jaykang10]

Summary

If the control flow is divergent too much inside loop, it could be better to avoid to move instructions outside loop.

For example, let's say there is a switch instruction with big number of cases inside loop and the instruction is located in one of the case block. In this case, it is not easy to say the instruction is executed.

This patch checks the number of divergent paths from loop header to block which has the instruction. If the number of divergent paths is bigger than threshold, LICM pass does not move the instruction.

The performance improvement from spec2017 for AArch64 is as below.

Benchmark	improvement(%)
500.perlbench_r	2.176103248
502.gcc_r	-0.271585852
505.mcf_r	0.511525241
520.omnetpp_r	-0.008166838
523.xalancbmk_r	0.488642971
525.x264_r	-0.049168496
531.deepsjeng_r	0.021372649
541.leela_r	-0.023171636
557.xz_r	-0.012851939

[lebedev.ri]

As it's stated in the pass description, it is a canonicalization transform, performed without a costmodel,
and it's expected to be undone in backend.

llvm/lib/Transforms/Scalar/LICM.cpp

15–20

[jaykang10]

In D111806#3064156, @lebedev.ri wrote:

As it's stated in the pass description, it is a canonicalization transform, performed without a costmodel,
and it's expected to be undone in backend.

Ah, Thanks for letting me know. @lebedev.ri I missed it.

Let me abandon this patch.

[jaykang10]

I would like to mention one thing.

This patch is not related to register pressure or live range. It checks the number of divergent paths from loop header to the block which has loop invariant code. If the number is too big, the probability of the instruction being executed is small.

LICM pass is already doing similar thing with profile information.

[jaykang10]

In order to get more comments, I open this review again.

[reames]

JFYI, Roman is correct. LICM is a canonicalizing transform. This patch will never be accepted. If the hoisting was not profitable, machine-licm exists precisely to undo it in a cost based way.

As to your point about the profile driven piece, you are correct, that is inconsistent. That should never have landed, or been enabled. I'm digging through the history to figure out how that happened.

[jaykang10]

In D111806#3065330, @reames wrote:

JFYI, Roman is correct. LICM is a canonicalizing transform. This patch will never be accepted. If the hoisting was not profitable, machine-licm exists precisely to undo it in a cost based way.

As to your point about the profile driven piece, you are correct, that is inconsistent. That should never have landed, or been enabled. I'm digging through the history to figure out how that happened.

Thanks for comment @reames.

I can see you start the discussion to revert the commit with profile information.

Once the patch is reverted, let me abandon this patch.

[SjoerdMeijer]

@lebedev.ri , @reames : I am not saying this the right patch, but just wanted to leave a thought about LICM being a canonicalizing transform. The situation where we are in at the moment, is that LICM is deemed a canonicalisation transform, but we don't have a solid solution in the backend to undo this. LoopSink is an IR pass, works with profile info, and is unsuitable if register pressure needs to be taken into account. MachineSink would be the natural place for this, but currently lacks the ability to sink back into loops. Some work was started to address this, D94308, but that needs finishing and isn't the end of the story. It would need more heuristics, and then get enabled, so that is quite a way off from where we want to be.

Long story short, I think it is a bit easy to say this is a canonicalization transformation. I am not ready to challenge this, not sure I ever will, but just saying that we are in a limbo and not really in a good situation with this.

[reames]

In D111806#3066336, @SjoerdMeijer wrote:

..., but we don't have a solid solution in the backend to undo this.

I would have a lot more sympathy for this argument if the examples being presented weren't near trivial sinking. The only example checked in with D87551 is a multiply used to implement a square operation. Such an instruction can (on x86, before regalloc) be trivially moved as a) it's non-faulting, b) it uses only a second register input so moving it as it worst neutral and c) the input and output are the same register class. The only mildly complicated bit is modeling the implicit eflags dead def, but even there, the location we sink to immediately kills it as well.

If we can't handle cases that simple in our sinking transforms, we should not workaround them elsewhere. That's embarrassing, and we should simply fix it.

If we were being presented with hard cases to undo with a cost based transform, I might be willing to entertain the notion that LICM should be non-canonical. As it stands, I don't see such examples.

[modimo]

To keep the conversation coherent I'll talk about the same feedback for D87551 here:

In D111806#3067256, @reames wrote:

If we were being presented with hard cases to undo with a cost based transform, I might be willing to entertain the notion that LICM should be non-canonical. As it stands, I don't see such examples.

The original change that prompted adding this from @wenlei is a more complicated situation https://reviews.llvm.org/D65060#1596899. Specifically, once the values are hoisted out of the 200 switch arms there's not longer a dominating use block to sink them back into. In addition, the block frequency information at that point no longer indicates that there's an issue from the hoisting. Getting MachineLICM to handle that case is complicated and I suspect fragile.

[reames]

In D111806#3079379, @modimo wrote:

To keep the conversation coherent I'll talk about the same feedback for D87551 here:

In D111806#3067256, @reames wrote:

If we were being presented with hard cases to undo with a cost based transform, I might be willing to entertain the notion that LICM should be non-canonical. As it stands, I don't see such examples.

The original change that prompted adding this from @wenlei is a more complicated situation https://reviews.llvm.org/D65060#1596899. Specifically, once the values are hoisted out of the 200 switch arms there's not longer a dominating use block to sink them back into. In addition, the block frequency information at that point no longer indicates that there's an issue from the hoisting. Getting MachineLICM to handle that case is complicated and I suspect fragile.

FYI, I find this very unconvincing. First, the motivating test case appears to have been discussed, but never shared. Second, as discussed, we appeared to have something along the lines of a switch mapping to address offsets, which is then loaded from. We can and do pull such geps down through the phi, and that optimization should probably have triggered on the discussed example. In general, a missing optimization is a *bad* motivation for disabling a canonicalization.

[lebedev.ri]

This review seems to be stuck/dead, consider abandoning if no longer relevant.

llvm/lib/Transforms/Scalar/LICM.cpp

 //===-- LICM.cpp - Loop Invariant Code Motion Pass ------------------------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 //
 //===----------------------------------------------------------------------===//
 //
 // This pass performs loop invariant code motion, attempting to remove as much
 // code from the body of a loop as possible.  It does this by either hoisting
 // code into the preheader block, or by sinking code to the exit blocks if it is
 // safe.  This pass also promotes must-aliased memory locations in the loop to
 // live in registers, thus hoisting and sinking "invariant" loads and stores.
 //
 // Hoisting operations out of loops is a canonicalization transform.  It
 // enables and simplifies subsequent optimizations in the middle-end.
 // Rematerialization of hoisted instructions to reduce register pressure is the
 // responsibility of the back-end, which has more accurate information about
 // register pressure and also handles other optimizations than LICM that
 // increase live-ranges.
 //
 // This pass uses alias analysis for two purposes:
 //
 //  1. Moving loop invariant loads and calls out of loops.  If we can determine
 //     that a load or call inside of a loop never aliases anything stored to,
 //     we can hoist it or sink it like any other instruction.
 //  2. Scalar Promotion of Memory - If there is a store instruction inside of
 //     the loop, we try to move the store to happen AFTER the loop instead of
static cl::opt<unsigned> HoistSinkColdnessThreshold(
     cl::desc("Relative coldness Threshold of hoisting/sinking destination "
              "block for LICM to be considered beneficial"));
 
 static cl::opt<uint32_t> MaxNumUsesTraversed(
     "licm-max-num-uses-traversed", cl::Hidden, cl::init(8),
     cl::desc("Max num uses visited for identifying load "
              "invariance in loop using invariant start (default = 8)"));
 
+static cl::opt<unsigned> DivergenceThreshold(
+    "licm-divergence-threshold",
+    cl::desc("Max number of divergent paths from loop header to target block"),
+    cl::init(50), cl::Hidden);
+
 // Experimental option to allow imprecision in LICM in pathological cases, in
 // exchange for faster compile. This is to be removed if MemorySSA starts to
 // address the same issue. This flag applies only when LICM uses MemorySSA
 // instead on AliasSetTracker. LICM calls MemorySSAWalker's
 // getClobberingMemoryAccess, up to the value of the Cap, getting perfect
 // accuracy. Afterwards, LICM will call into MemorySSA's getDefiningAccess,
 // which may not be precise, since optimizeUses is capped. The result is
 // correct, but we may not get as "far up" as possible to get which access is

 };
 } // namespace
 
 // Hoisting/sinking instruction out of a loop isn't always beneficial. It's only
 // only worthwhile if the destination block is actually colder than current
 // block.
 static bool worthSinkOrHoistInst(Instruction &I, BasicBlock *DstBlock,
                                  OptimizationRemarkEmitter *ORE,
-                                 BlockFrequencyInfo *BFI) {
+                                 BlockFrequencyInfo *BFI, DominatorTree *DT,
+                                 const Loop *CurLoop) {
   // Check block frequency only when runtime profile is available
   // to avoid pathological cases. With static profile, lean towards
   // hosting because it helps canonicalize the loop for vectorizer.
-  if (!DstBlock->getParent()->hasProfileData())
+  if (!DstBlock->getParent()->hasProfileData()) {
+    // If the control flow is divergent too much inside loop, it could be better
+    // to avoid to move instructions outside loop. For example, let's say there
+    // is a switch instruction with big number of cases inside loop and the
+    // instruction is located in one of the case block. In this case, it is not
+    // easy to say the instruction is executed. Let's check the number of
+    // divergent paths from loop header to block which has the instruction.
+    auto *DN = DT->getNode(I.getParent());
+    unsigned NumDivergentPathToBB = 0;
+    while (CurLoop->getHeader() != DN->getBlock()) {
+      DN = DN->getIDom();
+      NumDivergentPathToBB += DN->getNumChildren();
+    }
+
+    // If the number of divergent paths is bigger than threshold, do not move
+    // the instruction.
+    if (NumDivergentPathToBB > DivergenceThreshold)
+      return false;
+
     return true;
+  }
 
   if (!HoistSinkColdnessThreshold || !BFI)
     return true;
 
   BasicBlock *SrcBlock = I.getParent();
   if (BFI->getBlockFreq(DstBlock).getFrequency() / HoistSinkColdnessThreshold >
       BFI->getBlockFreq(SrcBlock).getFrequency()) {
     ORE->emit([&]() {
for (Instruction &I : llvm::make_early_inc_range(*BB)) {
       // if it is safe to hoist the instruction. We also check block frequency
       // to make sure instruction only gets hoisted into colder blocks.
       // TODO: It may be safe to hoist if we are hoisting to a conditional block
       // and we have accurately duplicated the control flow from the loop header
       // to that block.
       if (CurLoop->hasLoopInvariantOperands(&I) &&
           canSinkOrHoistInst(I, AA, DT, CurLoop, /*CurAST*/ nullptr, MSSAU,
                              true, &Flags, ORE) &&
-          worthSinkOrHoistInst(I, CurLoop->getLoopPreheader(), ORE, BFI) &&
+          worthSinkOrHoistInst(I, CurLoop->getLoopPreheader(), ORE, BFI, DT,
+                               CurLoop) &&
           isSafeToExecuteUnconditionally(
               I, DT, TLI, CurLoop, SafetyInfo, ORE,
               CurLoop->getLoopPreheader()->getTerminator())) {
         hoist(I, DT, CurLoop, CFH.getOrCreateHoistedBlock(BB), SafetyInfo,
               MSSAU, SE, ORE);
         HoistedInstructions.push_back(&I);
         Changed = true;
         continue;
for (auto *UI : Users) {
     auto *User = cast<Instruction>(UI);
 
     if (CurLoop->contains(User))
       continue;
 
     PHINode *PN = cast<PHINode>(User);
     assert(ExitBlockSet.count(PN->getParent()) &&
            "The LCSSA PHI is not in an exit block!");
-    if (!worthSinkOrHoistInst(I, PN->getParent(), ORE, BFI)) {
+    if (!worthSinkOrHoistInst(I, PN->getParent(), ORE, BFI, DT, CurLoop)) {
       return Changed;
     }
 
     ExitPNs.push_back(PN);
   }
 
   for (auto *PN : ExitPNs) {
 

llvm/test/Transforms/LICM/divergent-path-in-loop.ll

+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt -S -licm < %s | FileCheck %s
+
+; Below loop invariant gep should not be hoisted because the path is divergent
+; too much from loop header to the BB which has the gep.
+; %56 = getelementptr inbounds %struct.info, %struct.info* %0, i64 0, i32 2
+
+%struct.info = type { i8*, i8*, i8* }
+
+define void @test(%struct.info* %0, i1 %cond, i32 %input32, i8 %input8, i8* %input8ptr) {
+; CHECK-LABEL: @test(
+; CHECK-NEXT:    br label [[DOTCRITEDGE56:%.*]]
+; CHECK:       .critedge56.loopexit:
+; CHECK-NEXT:    br label [[DOTCRITEDGE56_BACKEDGE:%.*]]
+; CHECK:       .critedge56.loopexit6:
+; CHECK-NEXT:    br label [[DOTCRITEDGE56_BACKEDGE]]
+; CHECK:       .critedge56:
+; CHECK-NEXT:    br label [[TMP2:%.*]]
+; CHECK:       2:
+; CHECK-NEXT:    br label [[TMP3:%.*]]
+; CHECK:       .loopexit:
+; CHECK-NEXT:    br label [[TMP3]]
+; CHECK:       3:
+; CHECK-NEXT:    br i1 [[COND:%.*]], label [[DOTCRITEDGE239_LOOPEXIT5:%.*]], label [[DOTCRITEDGE1_PREHEADER:%.*]]
+; CHECK:       .critedge1.preheader:
+; CHECK-NEXT:    br label [[DOTCRITEDGE1:%.*]]
+; CHECK:       .critedge1:
+; CHECK-NEXT:    switch i32 [[INPUT32:%.*]], label [[TMP58:%.*]] [
+; CHECK-NEXT:    i32 2, label [[TMP4:%.*]]
+; CHECK-NEXT:    i32 3, label [[TMP5:%.*]]
+; CHECK-NEXT:    i32 7, label [[TMP6:%.*]]
+; CHECK-NEXT:    i32 90, label [[DOTCRITEDGE167_LOOPEXIT:%.*]]
+; CHECK-NEXT:    i32 133, label [[DOTCRITEDGE13:%.*]]
+; CHECK-NEXT:    i32 5, label [[TMP7:%.*]]
+; CHECK-NEXT:    i32 4, label [[TMP8:%.*]]
+; CHECK-NEXT:    i32 6, label [[TMP9:%.*]]
+; CHECK-NEXT:    i32 17, label [[TMP10:%.*]]
+; CHECK-NEXT:    i32 18, label [[TMP11:%.*]]
+; CHECK-NEXT:    i32 16, label [[TMP12:%.*]]
+; CHECK-NEXT:    i32 73, label [[TMP13:%.*]]
+; CHECK-NEXT:    i32 72, label [[TMP13]]
+; CHECK-NEXT:    i32 95, label [[TMP14:%.*]]
+; CHECK-NEXT:    i32 32, label [[DOTCRITEDGE13]]
+; CHECK-NEXT:    i32 31, label [[DOTCRITEDGE13]]
+; CHECK-NEXT:    i32 34, label [[TMP17:%.*]]
+; CHECK-NEXT:    i32 38, label [[DOTCRITEDGE13]]
+; CHECK-NEXT:    i32 37, label [[TMP17]]
+; CHECK-NEXT:    i32 35, label [[TMP17]]
+; CHECK-NEXT:    i32 39, label [[TMP17]]
+; CHECK-NEXT:    i32 36, label [[TMP17]]
+; CHECK-NEXT:    i32 33, label [[TMP17]]
+; CHECK-NEXT:    i32 13, label [[TMP18:%.*]]
+; CHECK-NEXT:    i32 9, label [[TMP18]]
+; CHECK-NEXT:    i32 12, label [[TMP19:%.*]]
+; CHECK-NEXT:    i32 8, label [[TMP19]]
+; CHECK-NEXT:    i32 15, label [[DOTCRITEDGE17:%.*]]
+; CHECK-NEXT:    i32 11, label [[DOTCRITEDGE17]]
+; CHECK-NEXT:    i32 14, label [[TMP20:%.*]]
+; CHECK-NEXT:    i32 10, label [[TMP20]]
+; CHECK-NEXT:    i32 20, label [[DOTCRITEDGE13]]
+; CHECK-NEXT:    i32 19, label [[DOTCRITEDGE13]]
+; CHECK-NEXT:    i32 26, label [[TMP21:%.*]]
+; CHECK-NEXT:    i32 22, label [[TMP21]]
+; CHECK-NEXT:    i32 25, label [[TMP22:%.*]]
+; CHECK-NEXT:    i32 21, label [[TMP22]]
+; CHECK-NEXT:    i32 28, label [[TMP23:%.*]]
+; CHECK-NEXT:    i32 24, label [[TMP24:%.*]]
+; CHECK-NEXT:    i32 27, label [[TMP25:%.*]]
+; CHECK-NEXT:    i32 23, label [[TMP25]]
+; CHECK-NEXT:    i32 29, label [[TMP31:%.*]]
+; CHECK-NEXT:    i32 58, label [[DOTCRITEDGE34:%.*]]
+; CHECK-NEXT:    i32 60, label [[DOTCRITEDGE34]]
+; CHECK-NEXT:    i32 59, label [[DOTCRITEDGE34]]
+; CHECK-NEXT:    i32 57, label [[DOTCRITEDGE34]]
+; CHECK-NEXT:    i32 56, label [[DOTCRITEDGE34]]
+; CHECK-NEXT:    i32 53, label [[TMP32:%.*]]
+; CHECK-NEXT:    i32 55, label [[TMP32]]
+; CHECK-NEXT:    i32 54, label [[TMP32]]
+; CHECK-NEXT:    i32 52, label [[TMP32]]
+; CHECK-NEXT:    i32 51, label [[TMP32]]
+; CHECK-NEXT:    i32 40, label [[TMP59:%.*]]
+; CHECK-NEXT:    i32 41, label [[TMP59]]
+; CHECK-NEXT:    i32 77, label [[DOTCRITEDGE167_LOOPEXIT]]
+; CHECK-NEXT:    i32 76, label [[DOTCRITEDGE167_LOOPEXIT]]
+; CHECK-NEXT:    i32 68, label [[TMP33:%.*]]
+; CHECK-NEXT:    i32 96, label [[TMP60:%.*]]
+; CHECK-NEXT:    i32 97, label [[DOTCRITEDGE13]]
+; CHECK-NEXT:    i32 49, label [[DOTCRITEDGE56_LOOPEXIT:%.*]]
+; CHECK-NEXT:    i32 50, label [[DOTCRITEDGE56_LOOPEXIT]]
+; CHECK-NEXT:    i32 83, label [[TMP34:%.*]]
+; CHECK-NEXT:    i32 67, label [[DOTCRITEDGE56_LOOPEXIT]]
+; CHECK-NEXT:    i32 78, label [[DOTCRITEDGE56_LOOPEXIT]]
+; CHECK-NEXT:    i32 79, label [[DOTCRITEDGE56_LOOPEXIT]]
+; CHECK-NEXT:    i32 80, label [[DOTCRITEDGE56_LOOPEXIT]]
+; CHECK-NEXT:    i32 66, label [[DOTCRITEDGE56_LOOPEXIT]]
+; CHECK-NEXT:    i32 70, label [[DOTCRITEDGE56_LOOPEXIT]]
+; CHECK-NEXT:    i32 47, label [[DOTCRITEDGE167_LOOPEXIT]]
+; CHECK-NEXT:    i32 98, label [[TMP60]]
+; CHECK-NEXT:    i32 99, label [[DOTCRITEDGE13]]
+; CHECK-NEXT:    i32 48, label [[DOTCRITEDGE167_LOOPEXIT]]
+; CHECK-NEXT:    i32 106, label [[TMP60]]
+; CHECK-NEXT:    i32 108, label [[TMP60]]
+; CHECK-NEXT:    i32 109, label [[DOTCRITEDGE13]]
+; CHECK-NEXT:    i32 103, label [[DOTCRITEDGE13]]
+; CHECK-NEXT:    i32 101, label [[DOTCRITEDGE13]]
+; CHECK-NEXT:    i32 105, label [[DOTCRITEDGE167_LOOPEXIT]]
+; CHECK-NEXT:    i32 107, label [[TMP35:%.*]]
+; CHECK-NEXT:    i32 62, label [[DOTCRITEDGE167_LOOPEXIT]]
+; CHECK-NEXT:    i32 30, label [[DOTCRITEDGE167_LOOPEXIT]]
+; CHECK-NEXT:    i32 89, label [[DOTCRITEDGE167_LOOPEXIT]]
+; CHECK-NEXT:    i32 131, label [[DOTCRITEDGE13]]
+; CHECK-NEXT:    i32 110, label [[TMP60]]
+; CHECK-NEXT:    i32 111, label [[TMP36:%.*]]
+; CHECK-NEXT:    i32 69, label [[DOTCRITEDGE56_LOOPEXIT]]
+; CHECK-NEXT:    i32 46, label [[TMP37:%.*]]
+; CHECK-NEXT:    i32 112, label [[TMP38:%.*]]
+; CHECK-NEXT:    i32 113, label [[DOTCRITEDGE13]]
+; CHECK-NEXT:    i32 115, label [[TMP42:%.*]]
+; CHECK-NEXT:    i32 42, label [[TMP43:%.*]]
+; CHECK-NEXT:    i32 43, label [[TMP43]]
+; CHECK-NEXT:    i32 45, label [[TMP43]]
+; CHECK-NEXT:    i32 44, label [[TMP43]]
+; CHECK-NEXT:    i32 119, label [[TMP48:%.*]]
+; CHECK-NEXT:    i32 121, label [[DOTCRITEDGE13]]
+; CHECK-NEXT:    i32 123, label [[DOTCRITEDGE148:%.*]]
+; CHECK-NEXT:    i32 0, label [[TMP50:%.*]]
+; CHECK-NEXT:    i32 1, label [[TMP60]]
+; CHECK-NEXT:    i32 65, label [[DOTCRITEDGE167_LOOPEXIT]]
+; CHECK-NEXT:    i32 64, label [[TMP51:%.*]]
+; CHECK-NEXT:    i32 63, label [[TMP51]]
+; CHECK-NEXT:    i32 117, label [[TMP52:%.*]]
+; CHECK-NEXT:    i32 116, label [[TMP52]]
+; CHECK-NEXT:    i32 61, label [[DOTCRITEDGE56_LOOPEXIT]]
+; CHECK-NEXT:    i32 88, label [[DOTCRITEDGE167_LOOPEXIT]]
+; CHECK-NEXT:    i32 85, label [[DOTCRITEDGE167_LOOPEXIT]]
+; CHECK-NEXT:    i32 125, label [[DOTCRITEDGE13]]
+; CHECK-NEXT:    i32 82, label [[DOTCRITEDGE13]]
+; CHECK-NEXT:    i32 86, label [[DOTCRITEDGE167_LOOPEXIT]]
+; CHECK-NEXT:    i32 126, label [[TMP60]]
+; CHECK-NEXT:    i32 127, label [[DOTCRITEDGE13]]
+; CHECK-NEXT:    i32 87, label [[TMP53:%.*]]
+; CHECK-NEXT:    i32 129, label [[TMP54:%.*]]
+; CHECK-NEXT:    i32 91, label [[TMP57:%.*]]
+; CHECK-NEXT:    ]
+; CHECK:       4:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE56_LOOPEXIT]], label [[DOTCRITEDGE1_BACKEDGE:%.*]]
+; CHECK:       .critedge1.backedge:
+; CHECK-NEXT:    br label [[DOTCRITEDGE1]]
+; CHECK:       5:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE56_LOOPEXIT]], label [[DOTCRITEDGE1_BACKEDGE]]
+; CHECK:       6:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE56_LOOPEXIT]], label [[DOTCRITEDGE1_BACKEDGE]]
+; CHECK:       7:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE239_LOOPEXIT8:%.*]], label [[DOTCRITEDGE56_BACKEDGE]]
+; CHECK:       .critedge56.backedge:
+; CHECK-NEXT:    br label [[DOTCRITEDGE56]]
+; CHECK:       8:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE239_LOOPEXIT8]], label [[DOTCRITEDGE56_BACKEDGE]]
+; CHECK:       9:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE56_LOOPEXIT]], label [[DOTCRITEDGE1_BACKEDGE]]
+; CHECK:       10:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE239_LOOPEXIT8]], label [[DOTCRITEDGE160:%.*]]
+; CHECK:       11:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE239_LOOPEXIT8]], label [[DOTCRITEDGE56_BACKEDGE]]
+; CHECK:       12:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE239_LOOPEXIT8]], label [[DOTCRITEDGE160]]
+; CHECK:       13:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE7:%.*]], label [[DOTCRITEDGE6_PREHEADER:%.*]]
+; CHECK:       .critedge6.preheader:
+; CHECK-NEXT:    br label [[DOTCRITEDGE6:%.*]]
+; CHECK:       .critedge6:
+; CHECK-NEXT:    br i1 false, label [[DOTCRITEDGE7_LOOPEXIT:%.*]], label [[DOTCRITEDGE6]]
+; CHECK:       .critedge7.loopexit:
+; CHECK-NEXT:    br label [[DOTCRITEDGE7]]
+; CHECK:       .critedge7:
+; CHECK-NEXT:    switch i32 [[INPUT32]], label [[DOTCRITEDGE239_LOOPEXIT:%.*]] [
+; CHECK-NEXT:    i32 8, label [[DOTCRITEDGE13]]
+; CHECK-NEXT:    i32 18, label [[DOTLOOPEXIT2:%.*]]
+; CHECK-NEXT:    i32 6, label [[DOTCRITEDGE13]]
+; CHECK-NEXT:    ]
+; CHECK:       14:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE239_LOOPEXIT7:%.*]], label [[DOTPREHEADER3:%.*]]
+; CHECK:       .preheader3:
+; CHECK-NEXT:    br label [[TMP15:%.*]]
+; CHECK:       15:
+; CHECK-NEXT:    br i1 false, label [[DOTLOOPEXIT4:%.*]], label [[TMP15]]
+; CHECK:       .loopexit2:
+; CHECK-NEXT:    br label [[TMP16:%.*]]
+; CHECK:       .loopexit4:
+; CHECK-NEXT:    br label [[TMP16]]
+; CHECK:       16:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE167:%.*]], label [[DOTCRITEDGE10_PREHEADER:%.*]]
+; CHECK:       .critedge10.preheader:
+; CHECK-NEXT:    br label [[DOTCRITEDGE10:%.*]]
+; CHECK:       .critedge10:
+; CHECK-NEXT:    br label [[DOTCRITEDGE10]]
+; CHECK:       17:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE239_LOOPEXIT8]], label [[DOTCRITEDGE56_BACKEDGE]]
+; CHECK:       18:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE56_LOOPEXIT]], label [[DOTCRITEDGE1_BACKEDGE]]
+; CHECK:       19:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE56_LOOPEXIT]], label [[DOTCRITEDGE1_BACKEDGE]]
+; CHECK:       .critedge17:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE56_LOOPEXIT]], label [[DOTCRITEDGE1_BACKEDGE]]
+; CHECK:       20:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE56_LOOPEXIT]], label [[DOTCRITEDGE1_BACKEDGE]]
+; CHECK:       21:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE239_LOOPEXIT8]], label [[DOTCRITEDGE30:%.*]]
+; CHECK:       22:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE239_LOOPEXIT8]], label [[DOTCRITEDGE24:%.*]]
+; CHECK:       23:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE239_LOOPEXIT8]], label [[DOTCRITEDGE160]]
+; CHECK:       24:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE239_LOOPEXIT8]], label [[DOTCRITEDGE24]]
+; CHECK:       .critedge24:
+; CHECK-NEXT:    br label [[DOTCRITEDGE56_BACKEDGE]]
+; CHECK:       25:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE239_LOOPEXIT8]], label [[DOTCRITEDGE30]]
+; CHECK:       .critedge30:
+; CHECK-NEXT:    switch i8 [[INPUT8:%.*]], label [[TMP30:%.*]] [
+; CHECK-NEXT:    i8 10, label [[TMP26:%.*]]
+; CHECK-NEXT:    i8 11, label [[TMP27:%.*]]
+; CHECK-NEXT:    i8 12, label [[TMP28:%.*]]
+; CHECK-NEXT:    i8 15, label [[TMP29:%.*]]
+; CHECK-NEXT:    ]
+; CHECK:       26:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE239_LOOPEXIT8]], label [[DOTCRITEDGE32:%.*]]
+; CHECK:       27:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE239_LOOPEXIT8]], label [[DOTCRITEDGE32]]
+; CHECK:       28:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE239_LOOPEXIT8]], label [[DOTCRITEDGE32]]
+; CHECK:       29:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE239_LOOPEXIT8]], label [[DOTCRITEDGE32]]
+; CHECK:       30:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE239_LOOPEXIT8]], label [[DOTCRITEDGE32]]
+; CHECK:       .critedge32:
+; CHECK-NEXT:    br label [[DOTCRITEDGE56_BACKEDGE]]
+; CHECK:       31:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE239_LOOPEXIT8]], label [[DOTCRITEDGE56_BACKEDGE]]
+; CHECK:       .critedge34:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE239_LOOPEXIT]], label [[DOTCRITEDGE1_BACKEDGE]]
+; CHECK:       32:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE239_LOOPEXIT]], label [[DOTCRITEDGE1_BACKEDGE]]
+; CHECK:       33:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE167]], label [[DOTCRITEDGE56_LOOPEXIT6:%.*]]
+; CHECK:       34:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE239:%.*]], label [[DOTCRITEDGE_PREHEADER:%.*]]
+; CHECK:       .critedge.preheader:
+; CHECK-NEXT:    br label [[DOTCRITEDGE:%.*]]
+; CHECK:       .critedge:
+; CHECK-NEXT:    br label [[DOTCRITEDGE]]
+; CHECK:       35:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE167_LOOPEXIT]], label [[DOTCRITEDGE1_BACKEDGE]]
+; CHECK:       36:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE239_LOOPEXIT]], label [[DOTCRITEDGE59:%.*]]
+; CHECK:       .critedge59:
+; CHECK-NEXT:    switch i8 [[INPUT8]], label [[DOTCRITEDGE13]] [
+; CHECK-NEXT:    i8 30, label [[DOTLOOPEXIT:%.*]]
+; CHECK-NEXT:    i8 62, label [[DOTLOOPEXIT]]
+; CHECK-NEXT:    ]
+; CHECK:       37:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE61:%.*]], label [[DOTCRITEDGE167_LOOPEXIT]]
+; CHECK:       38:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE167_LOOPEXIT]], label [[DOTCRITEDGE1_BACKEDGE]]
+; CHECK:       .critedge61:
+; CHECK-NEXT:    switch i8 [[INPUT8]], label [[DOTCRITEDGE62:%.*]] [
+; CHECK-NEXT:    i8 90, label [[TMP39:%.*]]
+; CHECK-NEXT:    i8 69, label [[TMP39]]
+; CHECK-NEXT:    i8 49, label [[TMP39]]
+; CHECK-NEXT:    i8 50, label [[TMP39]]
+; CHECK-NEXT:    i8 68, label [[TMP39]]
+; CHECK-NEXT:    i8 65, label [[TMP39]]
+; CHECK-NEXT:    i8 63, label [[TMP39]]
+; CHECK-NEXT:    i8 43, label [[TMP39]]
+; CHECK-NEXT:    ]
+; CHECK:       39:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE167_LOOPEXIT]], label [[DOTPREHEADER:%.*]]
+; CHECK:       .preheader:
+; CHECK-NEXT:    br label [[TMP40:%.*]]
+; CHECK:       40:
+; CHECK-NEXT:    switch i8 [[INPUT8]], label [[DOTCRITEDGE62_LOOPEXIT:%.*]] [
+; CHECK-NEXT:    i8 49, label [[TMP41:%.*]]
+; CHECK-NEXT:    i8 50, label [[TMP41]]
+; CHECK-NEXT:    i8 65, label [[TMP41]]
+; CHECK-NEXT:    i8 43, label [[TMP41]]
+; CHECK-NEXT:    i8 63, label [[TMP41]]
+; CHECK-NEXT:    i8 68, label [[TMP41]]
+; CHECK-NEXT:    i8 69, label [[TMP41]]
+; CHECK-NEXT:    i8 90, label [[TMP41]]
+; CHECK-NEXT:    ]
+; CHECK:       41:
+; CHECK-NEXT:    br label [[TMP40]]
+; CHECK:       .critedge62.loopexit:
+; CHECK-NEXT:    br label [[DOTCRITEDGE62]]
+; CHECK:       .critedge62:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE167_LOOPEXIT]], label [[DOTCRITEDGE1_BACKEDGE]]
+; CHECK:       42:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE239_LOOPEXIT7]], label [[DOTCRITEDGE167]]
+; CHECK:       43:
+; CHECK-NEXT:    switch i8 [[INPUT8]], label [[DOTCRITEDGE90:%.*]] [
+; CHECK-NEXT:    i8 90, label [[TMP44:%.*]]
+; CHECK-NEXT:    i8 69, label [[TMP44]]
+; CHECK-NEXT:    i8 49, label [[TMP44]]
+; CHECK-NEXT:    i8 50, label [[TMP44]]
+; CHECK-NEXT:    i8 68, label [[TMP44]]
+; CHECK-NEXT:    i8 65, label [[TMP44]]
+; CHECK-NEXT:    i8 63, label [[TMP44]]
+; CHECK-NEXT:    i8 43, label [[TMP44]]
+; CHECK-NEXT:    ]
+; CHECK:       44:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE167_LOOPEXIT]], label [[DOTPREHEADER1:%.*]]
+; CHECK:       .preheader1:
+; CHECK-NEXT:    br label [[TMP45:%.*]]
+; CHECK:       45:
+; CHECK-NEXT:    switch i8 [[INPUT8]], label [[DOTCRITEDGE90_LOOPEXIT:%.*]] [
+; CHECK-NEXT:    i8 49, label [[TMP46:%.*]]
+; CHECK-NEXT:    i8 50, label [[TMP46]]
+; CHECK-NEXT:    i8 65, label [[TMP46]]
+; CHECK-NEXT:    i8 43, label [[TMP46]]
+; CHECK-NEXT:    i8 63, label [[TMP46]]
+; CHECK-NEXT:    i8 68, label [[TMP46]]
+; CHECK-NEXT:    i8 69, label [[TMP46]]
+; CHECK-NEXT:    i8 90, label [[TMP46]]
+; CHECK-NEXT:    ]
+; CHECK:       46:
+; CHECK-NEXT:    br label [[TMP45]]
+; CHECK:       .critedge90.loopexit:
+; CHECK-NEXT:    br label [[DOTCRITEDGE90]]
+; CHECK:       .critedge90:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE167_LOOPEXIT]], label [[TMP47:%.*]]
+; CHECK:       47:
+; CHECK-NEXT:    switch i32 [[INPUT32]], label [[DOTCRITEDGE239_LOOPEXIT]] [
+; CHECK-NEXT:    i32 116, label [[TMP49:%.*]]
+; CHECK-NEXT:    i32 6, label [[DOTCRITEDGE13]]
+; CHECK-NEXT:    ]
+; CHECK:       48:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE239]], label [[DOTCRITEDGE105_PREHEADER:%.*]]
+; CHECK:       .critedge105.preheader:
+; CHECK-NEXT:    br label [[DOTCRITEDGE105:%.*]]
+; CHECK:       .critedge105:
+; CHECK-NEXT:    br label [[DOTCRITEDGE105]]
+; CHECK:       49:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE167_LOOPEXIT]], label [[DOTCRITEDGE1_BACKEDGE]]
+; CHECK:       .critedge148:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE167_LOOPEXIT]], label [[DOTCRITEDGE1_BACKEDGE]]
+; CHECK:       50:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE239_LOOPEXIT7]], label [[DOTCRITEDGE167]]
+; CHECK:       51:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE167_LOOPEXIT]], label [[DOTCRITEDGE1_BACKEDGE]]
+; CHECK:       52:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE239_LOOPEXIT]], label [[DOTCRITEDGE1_BACKEDGE]]
+; CHECK:       53:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE56_LOOPEXIT6]], label [[DOTCRITEDGE167]]
+; CHECK:       54:
+; CHECK-NEXT:    br i1 [[COND]], label [[TMP55:%.*]], label [[DOTCRITEDGE1_BACKEDGE]]
+; CHECK:       55:
+; CHECK-NEXT:    [[TMP56:%.*]] = getelementptr inbounds [[STRUCT_INFO:%.*]], %struct.info* [[TMP0:%.*]], i64 0, i32 2
+; CHECK-NEXT:    store i8* [[INPUT8PTR:%.*]], i8** [[TMP56]], align 8
+; CHECK-NEXT:    br label [[DOTCRITEDGE13]]
+; CHECK:       57:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE56_LOOPEXIT]], label [[DOTCRITEDGE1_BACKEDGE]]
+; CHECK:       58:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE239_LOOPEXIT8]], label [[DOTCRITEDGE160]]
+; CHECK:       .critedge160:
+; CHECK-NEXT:    br label [[DOTCRITEDGE56_BACKEDGE]]
+; CHECK:       59:
+; CHECK-NEXT:    br label [[DOTCRITEDGE56_BACKEDGE]]
+; CHECK:       .critedge167.loopexit:
+; CHECK-NEXT:    br label [[DOTCRITEDGE167]]
+; CHECK:       .critedge167:
+; CHECK-NEXT:    br label [[TMP2]]
+; CHECK:       60:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE239_LOOPEXIT]], label [[DOTCRITEDGE1_BACKEDGE]]
+; CHECK:       .critedge13:
+; CHECK-NEXT:    br i1 [[COND]], label [[DOTCRITEDGE239_LOOPEXIT]], label [[DOTCRITEDGE1_BACKEDGE]]
+; CHECK:       .critedge239.loopexit:
+; CHECK-NEXT:    br label [[DOTCRITEDGE239]]
+; CHECK:       .critedge239.loopexit5:
+; CHECK-NEXT:    br label [[DOTCRITEDGE239]]
+; CHECK:       .critedge239.loopexit7:
+; CHECK-NEXT:    br label [[DOTCRITEDGE239]]
+; CHECK:       .critedge239.loopexit8:
+; CHECK-NEXT:    br label [[DOTCRITEDGE239]]
+; CHECK:       .critedge239:
+; CHECK-NEXT:    ret void
+;
+  br label %.critedge56
+
+.critedge56:                                      ; preds = %59, %.critedge160, %57, %53, %33, %31, %.critedge32, %.critedge24, %20, %.critedge17, %19, %18, %17, %11, %9, %8, %7, %6, %5, %4, %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1, %1
+  br label %2
+
+2:                                                ; preds = %.critedge167, %.critedge56
+  br label %3
+
+3:                                                ; preds = %.critedge59, %.critedge59, %2
+  br i1 %cond, label %.critedge239, label %.critedge1
+
+.critedge1:                                       ; preds = %.critedge13, %60, %57, %54, %52, %51, %.critedge148, %49, %.critedge62, %38, %35, %32, %.critedge34, %20, %.critedge17, %19, %18, %9, %6, %5, %4, %3
+  switch i32 %input32, label %58 [
+  i32 2, label %4
+  i32 3, label %5
+  i32 7, label %6
+  i32 90, label %.critedge167
+  i32 133, label %.critedge13
+  i32 5, label %7
+  i32 4, label %8
+  i32 6, label %9
+  i32 17, label %10
+  i32 18, label %11
+  i32 16, label %12
+  i32 73, label %13
+  i32 72, label %13
+  i32 95, label %14
+  i32 32, label %.critedge13
+  i32 31, label %.critedge13
+  i32 34, label %17
+  i32 38, label %.critedge13
+  i32 37, label %17
+  i32 35, label %17
+  i32 39, label %17
+  i32 36, label %17
+  i32 33, label %17
+  i32 13, label %18
+  i32 9, label %18
+  i32 12, label %19
+  i32 8, label %19
+  i32 15, label %.critedge17
+  i32 11, label %.critedge17
+  i32 14, label %20
+  i32 10, label %20
+  i32 20, label %.critedge13
+  i32 19, label %.critedge13
+  i32 26, label %21
+  i32 22, label %21
+  i32 25, label %22
+  i32 21, label %22
+  i32 28, label %23
+  i32 24, label %24
+  i32 27, label %25
+  i32 23, label %25
+  i32 29, label %31
+  i32 58, label %.critedge34
+  i32 60, label %.critedge34
+  i32 59, label %.critedge34
+  i32 57, label %.critedge34
+  i32 56, label %.critedge34
+  i32 53, label %32
+  i32 55, label %32
+  i32 54, label %32
+  i32 52, label %32
+  i32 51, label %32
+  i32 40, label %59
+  i32 41, label %59
+  i32 77, label %.critedge167
+  i32 76, label %.critedge167
+  i32 68, label %33
+  i32 96, label %60
+  i32 97, label %.critedge13
+  i32 49, label %.critedge56
+  i32 50, label %.critedge56
+  i32 83, label %34
+  i32 67, label %.critedge56
+  i32 78, label %.critedge56
+  i32 79, label %.critedge56
+  i32 80, label %.critedge56
+  i32 66, label %.critedge56
+  i32 70, label %.critedge56
+  i32 47, label %.critedge167
+  i32 98, label %60
+  i32 99, label %.critedge13
+  i32 48, label %.critedge167
+  i32 106, label %60
+  i32 108, label %60
+  i32 109, label %.critedge13
+  i32 103, label %.critedge13
+  i32 101, label %.critedge13
+  i32 105, label %.critedge167
+  i32 107, label %35
+  i32 62, label %.critedge167
+  i32 30, label %.critedge167
+  i32 89, label %.critedge167
+  i32 131, label %.critedge13
+  i32 110, label %60
+  i32 111, label %36
+  i32 69, label %.critedge56
+  i32 46, label %37
+  i32 112, label %38
+  i32 113, label %.critedge13
+  i32 115, label %42
+  i32 42, label %43
+  i32 43, label %43
+  i32 45, label %43
+  i32 44, label %43
+  i32 119, label %48
+  i32 121, label %.critedge13
+  i32 123, label %.critedge148
+  i32 0, label %50
+  i32 1, label %60
+  i32 65, label %.critedge167
+  i32 64, label %51
+  i32 63, label %51
+  i32 117, label %52
+  i32 116, label %52
+  i32 61, label %.critedge56
+  i32 88, label %.critedge167
+  i32 85, label %.critedge167
+  i32 125, label %.critedge13
+  i32 82, label %.critedge13
+  i32 86, label %.critedge167
+  i32 126, label %60
+  i32 127, label %.critedge13
+  i32 87, label %53
+  i32 129, label %54
+  i32 91, label %57
+  ]
+
+4:                                                ; preds = %.critedge1
+  br i1 %cond, label %.critedge56, label %.critedge1
+
+5:                                                ; preds = %.critedge1
+  br i1 %cond, label %.critedge56, label %.critedge1
+
+6:                                                ; preds = %.critedge1
+  br i1 %cond, label %.critedge56, label %.critedge1
+
+7:                                                ; preds = %.critedge1
+  br i1 %cond, label %.critedge239, label %.critedge56
+
+8:                                                ; preds = %.critedge1
+  br i1 %cond, label %.critedge239, label %.critedge56
+
+9:                                                ; preds = %.critedge1
+  br i1 %cond, label %.critedge56, label %.critedge1
+
+10:                                               ; preds = %.critedge1
+  br i1 %cond, label %.critedge239, label %.critedge160
+
+11:                                               ; preds = %.critedge1
+  br i1 %cond, label %.critedge239, label %.critedge56
+
+12:                                               ; preds = %.critedge1
+  br i1 %cond, label %.critedge239, label %.critedge160
+
+13:                                               ; preds = %.critedge1, %.critedge1
+  br i1 %cond, label %.critedge7, label %.critedge6
+
+.critedge6:                                       ; preds = %.critedge6, %13
+  br i1 false, label %.critedge7, label %.critedge6
+
+.critedge7:                                       ; preds = %.critedge6, %13
+  switch i32 %input32, label %.critedge239 [
+  i32 8, label %.critedge13
+  i32 18, label %16
+  i32 6, label %.critedge13
+  ]
+
+14:                                               ; preds = %.critedge1
+  br i1 %cond, label %.critedge239, label %15
+
+15:                                               ; preds = %15, %14
+  br i1 false, label %16, label %15
+
+16:                                               ; preds = %15, %.critedge7
+  br i1 %cond, label %.critedge167, label %.critedge10
+
+.critedge10:                                      ; preds = %.critedge10, %16
+  br label %.critedge10
+
+17:                                               ; preds = %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1
+  br i1 %cond, label %.critedge239, label %.critedge56
+
+18:                                               ; preds = %.critedge1, %.critedge1
+  br i1 %cond, label %.critedge56, label %.critedge1
+
+19:                                               ; preds = %.critedge1, %.critedge1
+  br i1 %cond, label %.critedge56, label %.critedge1
+
+.critedge17:                                      ; preds = %.critedge1, %.critedge1
+  br i1 %cond, label %.critedge56, label %.critedge1
+
+20:                                               ; preds = %.critedge1, %.critedge1
+  br i1 %cond, label %.critedge56, label %.critedge1
+
+21:                                               ; preds = %.critedge1, %.critedge1
+  br i1 %cond, label %.critedge239, label %.critedge30
+
+22:                                               ; preds = %.critedge1, %.critedge1
+  br i1 %cond, label %.critedge239, label %.critedge24
+
+23:                                               ; preds = %.critedge1
+  br i1 %cond, label %.critedge239, label %.critedge160
+
+24:                                               ; preds = %.critedge1
+  br i1 %cond, label %.critedge239, label %.critedge24
+
+.critedge24:                                      ; preds = %24, %22
+  br label %.critedge56
+
+25:                                               ; preds = %.critedge1, %.critedge1
+  br i1 %cond, label %.critedge239, label %.critedge30
+
+.critedge30:                                      ; preds = %25, %21
+  switch i8 %input8, label %30 [
+  i8 10, label %26
+  i8 11, label %27
+  i8 12, label %28
+  i8 15, label %29
+  ]
+
+26:                                               ; preds = %.critedge30
+  br i1 %cond, label %.critedge239, label %.critedge32
+
+27:                                               ; preds = %.critedge30
+  br i1 %cond, label %.critedge239, label %.critedge32
+
+28:                                               ; preds = %.critedge30
+  br i1 %cond, label %.critedge239, label %.critedge32
+
+29:                                               ; preds = %.critedge30
+  br i1 %cond, label %.critedge239, label %.critedge32
+
+30:                                               ; preds = %.critedge30
+  br i1 %cond, label %.critedge239, label %.critedge32
+
+.critedge32:                                      ; preds = %30, %29, %28, %27, %26
+  br label %.critedge56
+
+31:                                               ; preds = %.critedge1
+  br i1 %cond, label %.critedge239, label %.critedge56
+
+.critedge34:                                      ; preds = %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1
+  br i1 %cond, label %.critedge239, label %.critedge1
+
+32:                                               ; preds = %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1
+  br i1 %cond, label %.critedge239, label %.critedge1
+
+33:                                               ; preds = %.critedge1
+  br i1 %cond, label %.critedge167, label %.critedge56
+
+34:                                               ; preds = %.critedge1
+  br i1 %cond, label %.critedge239, label %.critedge
+
+.critedge:                                        ; preds = %.critedge, %34
+  br label %.critedge
+
+35:                                               ; preds = %.critedge1
+  br i1 %cond, label %.critedge167, label %.critedge1
+
+36:                                               ; preds = %.critedge1
+  br i1 %cond, label %.critedge239, label %.critedge59
+
+.critedge59:                                      ; preds = %36
+  switch i8 %input8, label %.critedge13 [
+  i8 30, label %3
+  i8 62, label %3
+  ]
+
+37:                                               ; preds = %.critedge1
+  br i1 %cond, label %.critedge61, label %.critedge167
+
+38:                                               ; preds = %.critedge1
+  br i1 %cond, label %.critedge167, label %.critedge1
+
+.critedge61:                                      ; preds = %37
+  switch i8 %input8, label %.critedge62 [
+  i8 90, label %39
+  i8 69, label %39
+  i8 49, label %39
+  i8 50, label %39
+  i8 68, label %39
+  i8 65, label %39
+  i8 63, label %39
+  i8 43, label %39
+  ]
+
+39:                                               ; preds = %.critedge61, %.critedge61, %.critedge61, %.critedge61, %.critedge61, %.critedge61, %.critedge61, %.critedge61
+  br i1 %cond, label %.critedge167, label %40
+
+40:                                               ; preds = %41, %39
+  switch i8 %input8, label %.critedge62 [
+  i8 49, label %41
+  i8 50, label %41
+  i8 65, label %41
+  i8 43, label %41
+  i8 63, label %41
+  i8 68, label %41
+  i8 69, label %41
+  i8 90, label %41
+  ]
+
+41:                                               ; preds = %40, %40, %40, %40, %40, %40, %40, %40
+  br label %40
+
+.critedge62:                                      ; preds = %40, %.critedge61
+  br i1 %cond, label %.critedge167, label %.critedge1
+
+42:                                               ; preds = %.critedge1
+  br i1 %cond, label %.critedge239, label %.critedge167
+
+43:                                               ; preds = %.critedge1, %.critedge1, %.critedge1, %.critedge1
+  switch i8 %input8, label %.critedge90 [
+  i8 90, label %44
+  i8 69, label %44
+  i8 49, label %44
+  i8 50, label %44
+  i8 68, label %44
+  i8 65, label %44
+  i8 63, label %44
+  i8 43, label %44
+  ]
+
+44:                                               ; preds = %43, %43, %43, %43, %43, %43, %43, %43
+  br i1 %cond, label %.critedge167, label %45
+
+45:                                               ; preds = %46, %44
+  switch i8 %input8, label %.critedge90 [
+  i8 49, label %46
+  i8 50, label %46
+  i8 65, label %46
+  i8 43, label %46
+  i8 63, label %46
+  i8 68, label %46
+  i8 69, label %46
+  i8 90, label %46
+  ]
+
+46:                                               ; preds = %45, %45, %45, %45, %45, %45, %45, %45
+  br label %45
+
+.critedge90:                                      ; preds = %45, %43
+  br i1 %cond, label %.critedge167, label %47
+
+47:                                               ; preds = %.critedge90
+  switch i32 %input32, label %.critedge239 [
+  i32 116, label %49
+  i32 6, label %.critedge13
+  ]
+
+48:                                               ; preds = %.critedge1
+  br i1 %cond, label %.critedge239, label %.critedge105
+
+.critedge105:                                     ; preds = %.critedge105, %48
+  br label %.critedge105
+
+49:                                               ; preds = %47
+  br i1 %cond, label %.critedge167, label %.critedge1
+
+.critedge148:                                     ; preds = %.critedge1
+  br i1 %cond, label %.critedge167, label %.critedge1
+
+50:                                               ; preds = %.critedge1
+  br i1 %cond, label %.critedge239, label %.critedge167
+
+51:                                               ; preds = %.critedge1, %.critedge1
+  br i1 %cond, label %.critedge167, label %.critedge1
+
+52:                                               ; preds = %.critedge1, %.critedge1
+  br i1 %cond, label %.critedge239, label %.critedge1
+
+53:                                               ; preds = %.critedge1
+  br i1 %cond, label %.critedge56, label %.critedge167
+
+54:                                               ; preds = %.critedge1
+  br i1 %cond, label %55, label %.critedge1
+
+55:                                               ; preds = %54
+  %56 = getelementptr inbounds %struct.info, %struct.info* %0, i64 0, i32 2
+  store i8* %input8ptr, i8** %56, align 8
+  br label %.critedge13
+
+57:                                               ; preds = %.critedge1
+  br i1 %cond, label %.critedge56, label %.critedge1
+
+58:                                               ; preds = %.critedge1
+  br i1 %cond, label %.critedge239, label %.critedge160
+
+.critedge160:                                     ; preds = %58, %23, %12, %10
+  br label %.critedge56
+
+59:                                               ; preds = %.critedge1, %.critedge1
+  br label %.critedge56
+
+.critedge167:                                     ; preds = %53, %51, %50, %.critedge148, %49, %.critedge90, %44, %42, %.critedge62, %39, %38, %37, %35, %33, %16, %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1
+  br label %2
+
+60:                                               ; preds = %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1
+  br i1 %cond, label %.critedge239, label %.critedge1
+
+.critedge13:                                      ; preds = %55, %47, %.critedge59, %.critedge7, %.critedge7, %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1, %.critedge1
+  br i1 %cond, label %.critedge239, label %.critedge1
+
+.critedge239:                                     ; preds = %.critedge13, %60, %58, %52, %50, %48, %47, %42, %36, %34, %32, %.critedge34, %31, %30, %29, %28, %27, %26, %25, %24, %23, %22, %21, %17, %14, %.critedge7, %12, %11, %10, %8, %7, %3
+  ret void
+}
+