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llvm-mirror/test/CodeGen/PowerPC/cr-spills.ll
Hal Finkel 4d8aed70c1 Cleanup PPC CR-spill kill flags and 32- vs. 64-bit instructions 
There were a few places where kill flags were not being set correctly, and
where 32-bit instruction variants were being used with 64-bit registers. After
r178180, this code was being triggered causing llc to assert.

llvm-svn: 178220
2013-03-28 03:38:16 +00:00

410 lines
19 KiB
LLVM
Raw Blame History

; RUN: llc < %s -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr7
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-f128:128:128-v128:128:128-n32:64"
target triple = "powerpc64-unknown-linux-gnu"
; This test case triggers several functions related to cr spilling, both in
; frame lowering and to handle cr register pressure. When the register kill
; flags were not being set correctly, this would cause the register scavenger to
; assert.
@SetupFastFullPelSearch.orig_pels = external unnamed_addr global [768 x i16], align 2
@weight_luma = external global i32
@offset_luma = external global i32
@wp_luma_round = external global i32, align 4
@luma_log_weight_denom = external global i32, align 4
define void @SetupFastFullPelSearch() #0 {
entry:
%mul10 = mul nsw i32 undef, undef
br i1 undef, label %land.end, label %land.lhs.true
land.lhs.true: ; preds = %entry
switch i32 0, label %land.end [
i32 0, label %land.rhs
i32 3, label %land.rhs
]
land.rhs: ; preds = %land.lhs.true, %land.lhs.true
%tobool21 = icmp ne i32 undef, 0
br label %land.end
land.end: ; preds = %land.rhs, %land.lhs.true, %entry
%0 = phi i1 [ %tobool21, %land.rhs ], [ false, %land.lhs.true ], [ false, %entry ]
%cond = load i32** undef, align 8
br i1 undef, label %if.then95, label %for.body.lr.ph
if.then95: ; preds = %land.end
%cmp.i4.i1427 = icmp slt i32 undef, undef
br label %for.body.lr.ph
for.body.lr.ph: ; preds = %if.then95, %land.end
br label %for.body
for.body: ; preds = %for.body, %for.body.lr.ph
br i1 undef, label %for.body, label %for.body252
for.body252: ; preds = %for.inc997, %for.body
%shl263 = add i32 undef, 80
br i1 %0, label %for.cond286.preheader, label %for.cond713.preheader
for.cond286.preheader: ; preds = %for.body252
br label %for.cond290.preheader
for.cond290.preheader: ; preds = %for.end520, %for.cond286.preheader
%srcptr.31595 = phi i16* [ getelementptr inbounds ([768 x i16]* @SetupFastFullPelSearch.orig_pels, i64 0, i64 0), %for.cond286.preheader ], [ null, %for.end520 ]
%1 = load i32* undef, align 4, !tbaa !0
%2 = load i32* @weight_luma, align 4, !tbaa !0
%3 = load i32* @wp_luma_round, align 4, !tbaa !0
%4 = load i32* @luma_log_weight_denom, align 4, !tbaa !0
%5 = load i32* @offset_luma, align 4, !tbaa !0
%incdec.ptr502.sum = add i64 undef, 16
br label %for.body293
for.body293: ; preds = %for.body293, %for.cond290.preheader
%srcptr.41591 = phi i16* [ %srcptr.31595, %for.cond290.preheader ], [ undef, %for.body293 ]
%refptr.11590 = phi i16* [ undef, %for.cond290.preheader ], [ %add.ptr517, %for.body293 ]
%LineSadBlk0.01588 = phi i32 [ 0, %for.cond290.preheader ], [ %add346, %for.body293 ]
%LineSadBlk1.01587 = phi i32 [ 0, %for.cond290.preheader ], [ %add402, %for.body293 ]
%LineSadBlk3.01586 = phi i32 [ 0, %for.cond290.preheader ], [ %add514, %for.body293 ]
%LineSadBlk2.01585 = phi i32 [ 0, %for.cond290.preheader ], [ %add458, %for.body293 ]
%6 = load i16* %refptr.11590, align 2, !tbaa !3
%conv294 = zext i16 %6 to i32
%mul295 = mul nsw i32 %conv294, %2
%add296 = add nsw i32 %mul295, %3
%shr = ashr i32 %add296, %4
%add297 = add nsw i32 %shr, %5
%cmp.i.i1513 = icmp sgt i32 %add297, 0
%cond.i.i1514 = select i1 %cmp.i.i1513, i32 %add297, i32 0
%cmp.i4.i1515 = icmp slt i32 %cond.i.i1514, %1
%cond.i5.i1516 = select i1 %cmp.i4.i1515, i32 %cond.i.i1514, i32 %1
%7 = load i16* %srcptr.41591, align 2, !tbaa !3
%conv300 = zext i16 %7 to i32
%sub301 = sub nsw i32 %cond.i5.i1516, %conv300
%idxprom302 = sext i32 %sub301 to i64
%arrayidx303 = getelementptr inbounds i32* %cond, i64 %idxprom302
%8 = load i32* %arrayidx303, align 4, !tbaa !0
%add304 = add nsw i32 %8, %LineSadBlk0.01588
%9 = load i32* undef, align 4, !tbaa !0
%add318 = add nsw i32 %add304, %9
%10 = load i16* undef, align 2, !tbaa !3
%conv321 = zext i16 %10 to i32
%mul322 = mul nsw i32 %conv321, %2
%add323 = add nsw i32 %mul322, %3
%shr324 = ashr i32 %add323, %4
%add325 = add nsw i32 %shr324, %5
%cmp.i.i1505 = icmp sgt i32 %add325, 0
%cond.i.i1506 = select i1 %cmp.i.i1505, i32 %add325, i32 0
%cmp.i4.i1507 = icmp slt i32 %cond.i.i1506, %1
%cond.i5.i1508 = select i1 %cmp.i4.i1507, i32 %cond.i.i1506, i32 %1
%sub329 = sub nsw i32 %cond.i5.i1508, 0
%idxprom330 = sext i32 %sub329 to i64
%arrayidx331 = getelementptr inbounds i32* %cond, i64 %idxprom330
%11 = load i32* %arrayidx331, align 4, !tbaa !0
%add332 = add nsw i32 %add318, %11
%cmp.i.i1501 = icmp sgt i32 undef, 0
%cond.i.i1502 = select i1 %cmp.i.i1501, i32 undef, i32 0
%cmp.i4.i1503 = icmp slt i32 %cond.i.i1502, %1
%cond.i5.i1504 = select i1 %cmp.i4.i1503, i32 %cond.i.i1502, i32 %1
%incdec.ptr341 = getelementptr inbounds i16* %srcptr.41591, i64 4
%12 = load i16* null, align 2, !tbaa !3
%conv342 = zext i16 %12 to i32
%sub343 = sub nsw i32 %cond.i5.i1504, %conv342
%idxprom344 = sext i32 %sub343 to i64
%arrayidx345 = getelementptr inbounds i32* %cond, i64 %idxprom344
%13 = load i32* %arrayidx345, align 4, !tbaa !0
%add346 = add nsw i32 %add332, %13
%incdec.ptr348 = getelementptr inbounds i16* %refptr.11590, i64 5
%14 = load i16* null, align 2, !tbaa !3
%conv349 = zext i16 %14 to i32
%mul350 = mul nsw i32 %conv349, %2
%add351 = add nsw i32 %mul350, %3
%shr352 = ashr i32 %add351, %4
%add353 = add nsw i32 %shr352, %5
%cmp.i.i1497 = icmp sgt i32 %add353, 0
%cond.i.i1498 = select i1 %cmp.i.i1497, i32 %add353, i32 0
%cmp.i4.i1499 = icmp slt i32 %cond.i.i1498, %1
%cond.i5.i1500 = select i1 %cmp.i4.i1499, i32 %cond.i.i1498, i32 %1
%incdec.ptr355 = getelementptr inbounds i16* %srcptr.41591, i64 5
%15 = load i16* %incdec.ptr341, align 2, !tbaa !3
%conv356 = zext i16 %15 to i32
%sub357 = sub nsw i32 %cond.i5.i1500, %conv356
%idxprom358 = sext i32 %sub357 to i64
%arrayidx359 = getelementptr inbounds i32* %cond, i64 %idxprom358
%16 = load i32* %arrayidx359, align 4, !tbaa !0
%add360 = add nsw i32 %16, %LineSadBlk1.01587
%incdec.ptr362 = getelementptr inbounds i16* %refptr.11590, i64 6
%17 = load i16* %incdec.ptr348, align 2, !tbaa !3
%conv363 = zext i16 %17 to i32
%mul364 = mul nsw i32 %conv363, %2
%add365 = add nsw i32 %mul364, %3
%shr366 = ashr i32 %add365, %4
%add367 = add nsw i32 %shr366, %5
%cmp.i.i1493 = icmp sgt i32 %add367, 0
%cond.i.i1494 = select i1 %cmp.i.i1493, i32 %add367, i32 0
%cmp.i4.i1495 = icmp slt i32 %cond.i.i1494, %1
%cond.i5.i1496 = select i1 %cmp.i4.i1495, i32 %cond.i.i1494, i32 %1
%incdec.ptr369 = getelementptr inbounds i16* %srcptr.41591, i64 6
%18 = load i16* %incdec.ptr355, align 2, !tbaa !3
%conv370 = zext i16 %18 to i32
%sub371 = sub nsw i32 %cond.i5.i1496, %conv370
%idxprom372 = sext i32 %sub371 to i64
%arrayidx373 = getelementptr inbounds i32* %cond, i64 %idxprom372
%19 = load i32* %arrayidx373, align 4, !tbaa !0
%add374 = add nsw i32 %add360, %19
%incdec.ptr376 = getelementptr inbounds i16* %refptr.11590, i64 7
%20 = load i16* %incdec.ptr362, align 2, !tbaa !3
%conv377 = zext i16 %20 to i32
%mul378 = mul nsw i32 %conv377, %2
%add379 = add nsw i32 %mul378, %3
%shr380 = ashr i32 %add379, %4
%add381 = add nsw i32 %shr380, %5
%cmp.i.i1489 = icmp sgt i32 %add381, 0
%cond.i.i1490 = select i1 %cmp.i.i1489, i32 %add381, i32 0
%cmp.i4.i1491 = icmp slt i32 %cond.i.i1490, %1
%cond.i5.i1492 = select i1 %cmp.i4.i1491, i32 %cond.i.i1490, i32 %1
%incdec.ptr383 = getelementptr inbounds i16* %srcptr.41591, i64 7
%21 = load i16* %incdec.ptr369, align 2, !tbaa !3
%conv384 = zext i16 %21 to i32
%sub385 = sub nsw i32 %cond.i5.i1492, %conv384
%idxprom386 = sext i32 %sub385 to i64
%arrayidx387 = getelementptr inbounds i32* %cond, i64 %idxprom386
%22 = load i32* %arrayidx387, align 4, !tbaa !0
%add388 = add nsw i32 %add374, %22
%23 = load i16* %incdec.ptr376, align 2, !tbaa !3
%conv391 = zext i16 %23 to i32
%mul392 = mul nsw i32 %conv391, %2
%add395 = add nsw i32 0, %5
%cmp.i.i1485 = icmp sgt i32 %add395, 0
%cond.i.i1486 = select i1 %cmp.i.i1485, i32 %add395, i32 0
%cmp.i4.i1487 = icmp slt i32 %cond.i.i1486, %1
%cond.i5.i1488 = select i1 %cmp.i4.i1487, i32 %cond.i.i1486, i32 %1
%incdec.ptr397 = getelementptr inbounds i16* %srcptr.41591, i64 8
%24 = load i16* %incdec.ptr383, align 2, !tbaa !3
%conv398 = zext i16 %24 to i32
%sub399 = sub nsw i32 %cond.i5.i1488, %conv398
%idxprom400 = sext i32 %sub399 to i64
%arrayidx401 = getelementptr inbounds i32* %cond, i64 %idxprom400
%25 = load i32* %arrayidx401, align 4, !tbaa !0
%add402 = add nsw i32 %add388, %25
%incdec.ptr404 = getelementptr inbounds i16* %refptr.11590, i64 9
%cmp.i4.i1483 = icmp slt i32 undef, %1
%cond.i5.i1484 = select i1 %cmp.i4.i1483, i32 undef, i32 %1
%26 = load i16* %incdec.ptr397, align 2, !tbaa !3
%conv412 = zext i16 %26 to i32
%sub413 = sub nsw i32 %cond.i5.i1484, %conv412
%idxprom414 = sext i32 %sub413 to i64
%arrayidx415 = getelementptr inbounds i32* %cond, i64 %idxprom414
%27 = load i32* %arrayidx415, align 4, !tbaa !0
%add416 = add nsw i32 %27, %LineSadBlk2.01585
%incdec.ptr418 = getelementptr inbounds i16* %refptr.11590, i64 10
%28 = load i16* %incdec.ptr404, align 2, !tbaa !3
%conv419 = zext i16 %28 to i32
%mul420 = mul nsw i32 %conv419, %2
%add421 = add nsw i32 %mul420, %3
%shr422 = ashr i32 %add421, %4
%add423 = add nsw i32 %shr422, %5
%cmp.i.i1477 = icmp sgt i32 %add423, 0
%cond.i.i1478 = select i1 %cmp.i.i1477, i32 %add423, i32 0
%cmp.i4.i1479 = icmp slt i32 %cond.i.i1478, %1
%cond.i5.i1480 = select i1 %cmp.i4.i1479, i32 %cond.i.i1478, i32 %1
%incdec.ptr425 = getelementptr inbounds i16* %srcptr.41591, i64 10
%sub427 = sub nsw i32 %cond.i5.i1480, 0
%idxprom428 = sext i32 %sub427 to i64
%arrayidx429 = getelementptr inbounds i32* %cond, i64 %idxprom428
%29 = load i32* %arrayidx429, align 4, !tbaa !0
%add430 = add nsw i32 %add416, %29
%incdec.ptr432 = getelementptr inbounds i16* %refptr.11590, i64 11
%30 = load i16* %incdec.ptr418, align 2, !tbaa !3
%conv433 = zext i16 %30 to i32
%mul434 = mul nsw i32 %conv433, %2
%add435 = add nsw i32 %mul434, %3
%shr436 = ashr i32 %add435, %4
%add437 = add nsw i32 %shr436, %5
%cmp.i.i1473 = icmp sgt i32 %add437, 0
%cond.i.i1474 = select i1 %cmp.i.i1473, i32 %add437, i32 0
%cmp.i4.i1475 = icmp slt i32 %cond.i.i1474, %1
%cond.i5.i1476 = select i1 %cmp.i4.i1475, i32 %cond.i.i1474, i32 %1
%31 = load i16* %incdec.ptr425, align 2, !tbaa !3
%conv440 = zext i16 %31 to i32
%sub441 = sub nsw i32 %cond.i5.i1476, %conv440
%idxprom442 = sext i32 %sub441 to i64
%arrayidx443 = getelementptr inbounds i32* %cond, i64 %idxprom442
%32 = load i32* %arrayidx443, align 4, !tbaa !0
%add444 = add nsw i32 %add430, %32
%incdec.ptr446 = getelementptr inbounds i16* %refptr.11590, i64 12
%33 = load i16* %incdec.ptr432, align 2, !tbaa !3
%conv447 = zext i16 %33 to i32
%mul448 = mul nsw i32 %conv447, %2
%add449 = add nsw i32 %mul448, %3
%shr450 = ashr i32 %add449, %4
%add451 = add nsw i32 %shr450, %5
%cmp.i.i1469 = icmp sgt i32 %add451, 0
%cond.i.i1470 = select i1 %cmp.i.i1469, i32 %add451, i32 0
%cmp.i4.i1471 = icmp slt i32 %cond.i.i1470, %1
%cond.i5.i1472 = select i1 %cmp.i4.i1471, i32 %cond.i.i1470, i32 %1
%incdec.ptr453 = getelementptr inbounds i16* %srcptr.41591, i64 12
%34 = load i16* undef, align 2, !tbaa !3
%conv454 = zext i16 %34 to i32
%sub455 = sub nsw i32 %cond.i5.i1472, %conv454
%idxprom456 = sext i32 %sub455 to i64
%arrayidx457 = getelementptr inbounds i32* %cond, i64 %idxprom456
%35 = load i32* %arrayidx457, align 4, !tbaa !0
%add458 = add nsw i32 %add444, %35
%incdec.ptr460 = getelementptr inbounds i16* %refptr.11590, i64 13
%36 = load i16* %incdec.ptr446, align 2, !tbaa !3
%conv461 = zext i16 %36 to i32
%mul462 = mul nsw i32 %conv461, %2
%add463 = add nsw i32 %mul462, %3
%shr464 = ashr i32 %add463, %4
%add465 = add nsw i32 %shr464, %5
%cmp.i.i1465 = icmp sgt i32 %add465, 0
%cond.i.i1466 = select i1 %cmp.i.i1465, i32 %add465, i32 0
%cmp.i4.i1467 = icmp slt i32 %cond.i.i1466, %1
%cond.i5.i1468 = select i1 %cmp.i4.i1467, i32 %cond.i.i1466, i32 %1
%incdec.ptr467 = getelementptr inbounds i16* %srcptr.41591, i64 13
%37 = load i16* %incdec.ptr453, align 2, !tbaa !3
%conv468 = zext i16 %37 to i32
%sub469 = sub nsw i32 %cond.i5.i1468, %conv468
%idxprom470 = sext i32 %sub469 to i64
%arrayidx471 = getelementptr inbounds i32* %cond, i64 %idxprom470
%38 = load i32* %arrayidx471, align 4, !tbaa !0
%add472 = add nsw i32 %38, %LineSadBlk3.01586
%incdec.ptr474 = getelementptr inbounds i16* %refptr.11590, i64 14
%add477 = add nsw i32 0, %3
%shr478 = ashr i32 %add477, %4
%add479 = add nsw i32 %shr478, %5
%cmp.i.i1461 = icmp sgt i32 %add479, 0
%cond.i.i1462 = select i1 %cmp.i.i1461, i32 %add479, i32 0
%cmp.i4.i1463 = icmp slt i32 %cond.i.i1462, %1
%cond.i5.i1464 = select i1 %cmp.i4.i1463, i32 %cond.i.i1462, i32 %1
%incdec.ptr481 = getelementptr inbounds i16* %srcptr.41591, i64 14
%39 = load i16* %incdec.ptr467, align 2, !tbaa !3
%conv482 = zext i16 %39 to i32
%sub483 = sub nsw i32 %cond.i5.i1464, %conv482
%idxprom484 = sext i32 %sub483 to i64
%arrayidx485 = getelementptr inbounds i32* %cond, i64 %idxprom484
%40 = load i32* %arrayidx485, align 4, !tbaa !0
%add486 = add nsw i32 %add472, %40
%incdec.ptr488 = getelementptr inbounds i16* %refptr.11590, i64 15
%41 = load i16* %incdec.ptr474, align 2, !tbaa !3
%conv489 = zext i16 %41 to i32
%mul490 = mul nsw i32 %conv489, %2
%add491 = add nsw i32 %mul490, %3
%shr492 = ashr i32 %add491, %4
%add493 = add nsw i32 %shr492, %5
%cmp.i.i1457 = icmp sgt i32 %add493, 0
%cond.i.i1458 = select i1 %cmp.i.i1457, i32 %add493, i32 0
%cmp.i4.i1459 = icmp slt i32 %cond.i.i1458, %1
%cond.i5.i1460 = select i1 %cmp.i4.i1459, i32 %cond.i.i1458, i32 %1
%incdec.ptr495 = getelementptr inbounds i16* %srcptr.41591, i64 15
%42 = load i16* %incdec.ptr481, align 2, !tbaa !3
%conv496 = zext i16 %42 to i32
%sub497 = sub nsw i32 %cond.i5.i1460, %conv496
%idxprom498 = sext i32 %sub497 to i64
%arrayidx499 = getelementptr inbounds i32* %cond, i64 %idxprom498
%43 = load i32* %arrayidx499, align 4, !tbaa !0
%add500 = add nsw i32 %add486, %43
%44 = load i16* %incdec.ptr488, align 2, !tbaa !3
%conv503 = zext i16 %44 to i32
%mul504 = mul nsw i32 %conv503, %2
%add505 = add nsw i32 %mul504, %3
%shr506 = ashr i32 %add505, %4
%add507 = add nsw i32 %shr506, %5
%cmp.i.i1453 = icmp sgt i32 %add507, 0
%cond.i.i1454 = select i1 %cmp.i.i1453, i32 %add507, i32 0
%cmp.i4.i1455 = icmp slt i32 %cond.i.i1454, %1
%cond.i5.i1456 = select i1 %cmp.i4.i1455, i32 %cond.i.i1454, i32 %1
%45 = load i16* %incdec.ptr495, align 2, !tbaa !3
%conv510 = zext i16 %45 to i32
%sub511 = sub nsw i32 %cond.i5.i1456, %conv510
%idxprom512 = sext i32 %sub511 to i64
%arrayidx513 = getelementptr inbounds i32* %cond, i64 %idxprom512
%46 = load i32* %arrayidx513, align 4, !tbaa !0
%add514 = add nsw i32 %add500, %46
%add.ptr517 = getelementptr inbounds i16* %refptr.11590, i64 %incdec.ptr502.sum
%exitcond1692 = icmp eq i32 undef, 4
br i1 %exitcond1692, label %for.end520, label %for.body293
for.end520: ; preds = %for.body293
store i32 %add346, i32* undef, align 4, !tbaa !0
store i32 %add402, i32* undef, align 4, !tbaa !0
store i32 %add458, i32* undef, align 4, !tbaa !0
store i32 %add514, i32* null, align 4, !tbaa !0
br i1 undef, label %for.end543, label %for.cond290.preheader
for.end543: ; preds = %for.end520
br i1 undef, label %for.inc997, label %for.body549
for.body549: ; preds = %for.inc701, %for.end543
%call554 = call i16* null(i16**** null, i32 signext undef, i32 signext %shl263) #1
br label %for.cond559.preheader
for.cond559.preheader: ; preds = %for.cond559.preheader, %for.body549
br i1 undef, label %for.inc701, label %for.cond559.preheader
for.inc701: ; preds = %for.cond559.preheader
br i1 undef, label %for.inc997, label %for.body549
for.cond713.preheader: ; preds = %for.end850, %for.body252
br label %for.body716
for.body716: ; preds = %for.body716, %for.cond713.preheader
br i1 undef, label %for.end850, label %for.body716
for.end850: ; preds = %for.body716
br i1 undef, label %for.end873, label %for.cond713.preheader
for.end873: ; preds = %for.end850
br i1 undef, label %for.inc997, label %for.body879
for.body879: ; preds = %for.inc992, %for.end873
br label %for.cond889.preheader
for.cond889.preheader: ; preds = %for.end964, %for.body879
br i1 undef, label %for.cond894.preheader.lr.ph, label %for.end964
for.cond894.preheader.lr.ph: ; preds = %for.cond889.preheader
br label %for.body898.lr.ph.us
for.end957.us: ; preds = %for.body946.us
br i1 undef, label %for.body898.lr.ph.us, label %for.end964
for.body946.us: ; preds = %for.body930.us, %for.body946.us
br i1 false, label %for.body946.us, label %for.end957.us
for.body930.us: ; preds = %for.body914.us, %for.body930.us
br i1 undef, label %for.body930.us, label %for.body946.us
for.body914.us: ; preds = %for.body898.us, %for.body914.us
br i1 undef, label %for.body914.us, label %for.body930.us
for.body898.us: ; preds = %for.body898.lr.ph.us, %for.body898.us
br i1 undef, label %for.body898.us, label %for.body914.us
for.body898.lr.ph.us: ; preds = %for.end957.us, %for.cond894.preheader.lr.ph
br label %for.body898.us
for.end964: ; preds = %for.end957.us, %for.cond889.preheader
%inc990 = add nsw i32 undef, 1
br i1 false, label %for.inc992, label %for.cond889.preheader
for.inc992: ; preds = %for.end964
br i1 false, label %for.inc997, label %for.body879
for.inc997: ; preds = %for.inc992, %for.end873, %for.inc701, %for.end543
%cmp250 = icmp slt i32 undef, %mul10
br i1 %cmp250, label %for.body252, label %for.end999
for.end999: ; preds = %for.inc997
ret void
}
attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-frame-pointer-elim-non-leaf"="true" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { nounwind }
!0 = metadata !{metadata !"int", metadata !1}
!1 = metadata !{metadata !"omnipotent char", metadata !2}
!2 = metadata !{metadata !"Simple C/C++ TBAA"}
!3 = metadata !{metadata !"short", metadata !1}
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