302 lines
15 KiB
LLVM
302 lines
15 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
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; RUN: opt -p dse -S %s | FileCheck %s
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target datalayout = "E-m:e-i1:8:16-i8:8:16-i64:64-f128:64-v128:64-a:8:16-n32:64"
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define void @widget(ptr %a) {
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; CHECK-LABEL: define void @widget(
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; CHECK-SAME: ptr [[A:%.*]]) {
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; CHECK-NEXT: bb:
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; CHECK-NEXT: [[CALL1:%.*]] = tail call noalias ptr @malloc(i64 0)
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; CHECK-NEXT: store ptr [[CALL1]], ptr [[A]], align 8
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; CHECK-NEXT: [[LOAD:%.*]] = load ptr, ptr [[A]], align 8
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; CHECK-NEXT: [[LOAD2:%.*]] = load i32, ptr [[LOAD]], align 8
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; CHECK-NEXT: [[GETELEMENTPTR:%.*]] = getelementptr i8, ptr [[CALL1]], i64 0
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; CHECK-NEXT: [[GETELEMENTPTR3:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR]], i64 1
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; CHECK-NEXT: [[GETELEMENTPTR4:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR]], i64 8
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; CHECK-NEXT: store i16 0, ptr [[GETELEMENTPTR4]], align 4
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; CHECK-NEXT: [[GETELEMENTPTR5:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR]], i64 12
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; CHECK-NEXT: store i32 0, ptr [[CALL1]], align 4
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; CHECK-NEXT: [[LOAD6:%.*]] = load i32, ptr inttoptr (i64 4 to ptr), align 4
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; CHECK-NEXT: br label [[BB48:%.*]]
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; CHECK: bb7:
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; CHECK-NEXT: br label [[BB9:%.*]]
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; CHECK: bb8:
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; CHECK-NEXT: br label [[BB53:%.*]]
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; CHECK: bb9:
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; CHECK-NEXT: [[PHI:%.*]] = phi ptr [ [[CALL1]], [[BB7:%.*]] ], [ [[A]], [[BB43:%.*]] ]
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; CHECK-NEXT: [[GETELEMENTPTR10:%.*]] = getelementptr i8, ptr [[PHI]], i64 0
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; CHECK-NEXT: [[GETELEMENTPTR11:%.*]] = getelementptr i8, ptr [[PHI]], i64 0
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; CHECK-NEXT: [[GETELEMENTPTR12:%.*]] = getelementptr i8, ptr [[PHI]], i64 0
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; CHECK-NEXT: [[GETELEMENTPTR13:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR12]], i64 1
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; CHECK-NEXT: store i8 0, ptr [[CALL1]], align 1
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; CHECK-NEXT: br label [[BB29:%.*]]
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; CHECK: bb14:
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; CHECK-NEXT: [[GETELEMENTPTR15:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR10]], i64 8
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; CHECK-NEXT: [[LOAD16:%.*]] = load i16, ptr [[CALL1]], align 4
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; CHECK-NEXT: br i1 false, label [[BB22:%.*]], label [[BB17:%.*]]
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; CHECK: bb17:
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; CHECK-NEXT: [[GETELEMENTPTR18:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR11]], i64 8
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; CHECK-NEXT: [[LOAD19:%.*]] = load i16, ptr [[CALL1]], align 4
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; CHECK-NEXT: [[GETELEMENTPTR20:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR12]], i64 8
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; CHECK-NEXT: store i16 0, ptr [[CALL1]], align 4
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; CHECK-NEXT: [[GETELEMENTPTR21:%.*]] = getelementptr i8, ptr [[PHI]], i64 0
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; CHECK-NEXT: br label [[BB25:%.*]]
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; CHECK: bb22:
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; CHECK-NEXT: [[GETELEMENTPTR23:%.*]] = getelementptr i8, ptr [[PHI]], i64 0
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; CHECK-NEXT: [[GETELEMENTPTR24:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR23]], i64 12
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; CHECK-NEXT: br label [[BB25]]
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; CHECK: bb25:
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; CHECK-NEXT: [[PHI26:%.*]] = phi ptr [ [[A]], [[BB17]] ], [ [[CALL1]], [[BB22]] ]
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; CHECK-NEXT: [[PHI27:%.*]] = phi ptr [ [[CALL1]], [[BB17]] ], [ [[CALL1]], [[BB22]] ]
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; CHECK-NEXT: [[PHI28:%.*]] = phi ptr [ [[CALL1]], [[BB17]] ], [ [[CALL1]], [[BB22]] ]
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; CHECK-NEXT: store i32 0, ptr [[CALL1]], align 4
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; CHECK-NEXT: br label [[BB29]]
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; CHECK: bb29:
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; CHECK-NEXT: [[PHI30:%.*]] = phi ptr [ [[CALL1]], [[BB9]] ], [ [[CALL1]], [[BB25]] ]
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; CHECK-NEXT: [[PHI31:%.*]] = phi ptr [ [[CALL1]], [[BB9]] ], [ [[CALL1]], [[BB25]] ]
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; CHECK-NEXT: [[LOAD32:%.*]] = load i8, ptr [[CALL1]], align 4
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; CHECK-NEXT: [[LOAD33:%.*]] = load i8, ptr [[CALL1]], align 4
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; CHECK-NEXT: [[GETELEMENTPTR34:%.*]] = getelementptr i8, ptr [[PHI31]], i64 12
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; CHECK-NEXT: [[GETELEMENTPTR35:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR12]], i64 12
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; CHECK-NEXT: br label [[BB86:%.*]]
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; CHECK: bb36:
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; CHECK-NEXT: [[GETELEMENTPTR37:%.*]] = getelementptr i8, ptr [[PHI30]], i64 12
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; CHECK-NEXT: br label [[BB38:%.*]]
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; CHECK: bb38:
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; CHECK-NEXT: [[GETELEMENTPTR39:%.*]] = getelementptr [0 x i32], ptr [[GETELEMENTPTR34]], i64 0, i64 0
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; CHECK-NEXT: [[LOAD40:%.*]] = load i32, ptr [[CALL1]], align 4
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; CHECK-NEXT: [[GETELEMENTPTR41:%.*]] = getelementptr [0 x i32], ptr [[GETELEMENTPTR37]], i64 0, i64 0
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; CHECK-NEXT: [[LOAD42:%.*]] = load i32, ptr [[CALL1]], align 4
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; CHECK-NEXT: br label [[BB38]]
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; CHECK: bb43:
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; CHECK-NEXT: [[GETELEMENTPTR44:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR12]], i64 8
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; CHECK-NEXT: [[LOAD45:%.*]] = load i16, ptr [[CALL1]], align 4
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; CHECK-NEXT: store i16 0, ptr [[CALL1]], align 4
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; CHECK-NEXT: store i8 0, ptr [[CALL1]], align 4
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; CHECK-NEXT: [[GETELEMENTPTR46:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR12]], i64 12
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; CHECK-NEXT: store i32 0, ptr [[CALL1]], align 4
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; CHECK-NEXT: [[GETELEMENTPTR47:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR12]], i64 16
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; CHECK-NEXT: store i32 0, ptr [[CALL1]], align 4
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; CHECK-NEXT: br label [[BB9]]
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; CHECK: bb48:
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; CHECK-NEXT: [[GETELEMENTPTR49:%.*]] = getelementptr i8, ptr [[CALL1]], i64 0
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; CHECK-NEXT: [[GETELEMENTPTR50:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR49]], i64 1
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; CHECK-NEXT: [[GETELEMENTPTR51:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR49]], i64 8
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; CHECK-NEXT: [[GETELEMENTPTR52:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR49]], i64 12
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; CHECK-NEXT: store i32 0, ptr [[CALL1]], align 4
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; CHECK-NEXT: br label [[BB48]]
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; CHECK: bb53:
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; CHECK-NEXT: [[PHI54:%.*]] = phi ptr [ [[CALL1]], [[BB8:%.*]] ], [ [[A]], [[BB71:%.*]] ]
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; CHECK-NEXT: [[GETELEMENTPTR55:%.*]] = getelementptr i8, ptr [[PHI54]], i64 0
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; CHECK-NEXT: [[GETELEMENTPTR56:%.*]] = getelementptr i8, ptr [[PHI54]], i64 0
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; CHECK-NEXT: [[GETELEMENTPTR57:%.*]] = getelementptr i8, ptr [[PHI54]], i64 0
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; CHECK-NEXT: [[GETELEMENTPTR58:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR57]], i64 1
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; CHECK-NEXT: br label [[BB71]]
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; CHECK: bb59:
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; CHECK-NEXT: [[GETELEMENTPTR60:%.*]] = getelementptr i8, ptr [[PHI54]], i64 0
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; CHECK-NEXT: [[GETELEMENTPTR61:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR60]], i64 12
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; CHECK-NEXT: br label [[BB67:%.*]]
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; CHECK: bb62:
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; CHECK-NEXT: [[GETELEMENTPTR63:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR56]], i64 8
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; CHECK-NEXT: [[LOAD64:%.*]] = load i16, ptr [[CALL1]], align 4
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; CHECK-NEXT: [[GETELEMENTPTR65:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR57]], i64 8
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; CHECK-NEXT: store i16 0, ptr [[CALL1]], align 4
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; CHECK-NEXT: [[GETELEMENTPTR66:%.*]] = getelementptr i8, ptr [[PHI54]], i64 0
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; CHECK-NEXT: br label [[BB67]]
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; CHECK: bb67:
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; CHECK-NEXT: [[PHI68:%.*]] = phi ptr [ [[A]], [[BB62:%.*]] ], [ [[CALL1]], [[BB59:%.*]] ]
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; CHECK-NEXT: [[PHI69:%.*]] = phi ptr [ [[CALL1]], [[BB62]] ], [ [[CALL1]], [[BB59]] ]
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; CHECK-NEXT: [[PHI70:%.*]] = phi ptr [ [[CALL1]], [[BB62]] ], [ [[CALL1]], [[BB59]] ]
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; CHECK-NEXT: store i32 0, ptr [[CALL1]], align 4
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; CHECK-NEXT: br label [[BB71]]
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; CHECK: bb71:
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; CHECK-NEXT: [[PHI72:%.*]] = phi ptr [ [[CALL1]], [[BB53]] ], [ [[CALL1]], [[BB67]] ]
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; CHECK-NEXT: [[PHI73:%.*]] = phi ptr [ [[CALL1]], [[BB53]] ], [ [[CALL1]], [[BB67]] ]
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; CHECK-NEXT: [[LOAD74:%.*]] = load i8, ptr [[CALL1]], align 4
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; CHECK-NEXT: [[LOAD75:%.*]] = load i8, ptr [[CALL1]], align 4
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; CHECK-NEXT: [[GETELEMENTPTR76:%.*]] = getelementptr i8, ptr [[PHI72]], i64 12
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; CHECK-NEXT: [[GETELEMENTPTR77:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR57]], i64 12
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; CHECK-NEXT: [[GETELEMENTPTR78:%.*]] = getelementptr [0 x i32], ptr [[GETELEMENTPTR76]], i64 0, i64 0
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; CHECK-NEXT: [[LOAD79:%.*]] = load i32, ptr [[CALL1]], align 4
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; CHECK-NEXT: [[GETELEMENTPTR80:%.*]] = getelementptr [0 x i32], ptr [[GETELEMENTPTR77]], i64 0, i64 0
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; CHECK-NEXT: store i32 0, ptr [[CALL1]], align 4
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; CHECK-NEXT: [[LOAD81:%.*]] = load i8, ptr [[CALL1]], align 4
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; CHECK-NEXT: [[GETELEMENTPTR82:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR57]], i64 8
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; CHECK-NEXT: [[LOAD83:%.*]] = load i16, ptr [[CALL1]], align 4
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; CHECK-NEXT: store i16 0, ptr [[CALL1]], align 4
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; CHECK-NEXT: store i8 0, ptr [[CALL1]], align 4
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; CHECK-NEXT: [[GETELEMENTPTR84:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR57]], i64 12
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; CHECK-NEXT: store i32 0, ptr [[CALL1]], align 4
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; CHECK-NEXT: [[GETELEMENTPTR85:%.*]] = getelementptr i8, ptr [[GETELEMENTPTR57]], i64 16
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; CHECK-NEXT: store i32 0, ptr [[CALL1]], align 4
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; CHECK-NEXT: br label [[BB53]]
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; CHECK: bb86:
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; CHECK-NEXT: [[GETELEMENTPTR87:%.*]] = getelementptr [0 x i32], ptr [[GETELEMENTPTR34]], i64 0, i64 0
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; CHECK-NEXT: [[LOAD88:%.*]] = load i32, ptr [[CALL1]], align 4
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; CHECK-NEXT: [[GETELEMENTPTR89:%.*]] = getelementptr [0 x i32], ptr [[GETELEMENTPTR35]], i64 0, i64 0
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; CHECK-NEXT: store i32 0, ptr [[CALL1]], align 4
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; CHECK-NEXT: br label [[BB86]]
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;
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bb:
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%call = tail call ptr @malloc(i64 1)
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tail call void @llvm.memset.p0.i64(ptr %call, i8 0, i64 1, i1 false)
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%call1 = tail call noalias ptr @malloc(i64 0)
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store ptr %call1, ptr %a, align 8
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%load = load ptr, ptr %a, align 8
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%load2 = load i32, ptr %load, align 8
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%getelementptr = getelementptr i8, ptr %call1, i64 0
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%getelementptr3 = getelementptr i8, ptr %getelementptr, i64 1
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store i8 0, ptr %call1, align 1
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%getelementptr4 = getelementptr i8, ptr %getelementptr, i64 8
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store i16 0, ptr %getelementptr4, align 4
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%getelementptr5 = getelementptr i8, ptr %getelementptr, i64 12
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store i32 0, ptr %call1, align 4
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%load6 = load i32, ptr inttoptr (i64 4 to ptr), align 4
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br label %bb48
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bb7: ; No predecessors!
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br label %bb9
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bb8: ; No predecessors!
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br label %bb53
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bb9: ; preds = %bb43, %bb7
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%phi = phi ptr [ %call1, %bb7 ], [ %a, %bb43 ]
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%getelementptr10 = getelementptr i8, ptr %phi, i64 0
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%getelementptr11 = getelementptr i8, ptr %phi, i64 0
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%getelementptr12 = getelementptr i8, ptr %phi, i64 0
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%getelementptr13 = getelementptr i8, ptr %getelementptr12, i64 1
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store i8 0, ptr %call1, align 1
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br label %bb29
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bb14: ; No predecessors!
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%getelementptr15 = getelementptr i8, ptr %getelementptr10, i64 8
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%load16 = load i16, ptr %call1, align 4
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br i1 false, label %bb22, label %bb17
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bb17: ; preds = %bb14
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%getelementptr18 = getelementptr i8, ptr %getelementptr11, i64 8
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%load19 = load i16, ptr %call1, align 4
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%getelementptr20 = getelementptr i8, ptr %getelementptr12, i64 8
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store i16 0, ptr %call1, align 4
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%getelementptr21 = getelementptr i8, ptr %phi, i64 0
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br label %bb25
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bb22: ; preds = %bb14
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%getelementptr23 = getelementptr i8, ptr %phi, i64 0
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%getelementptr24 = getelementptr i8, ptr %getelementptr23, i64 12
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br label %bb25
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bb25: ; preds = %bb22, %bb17
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%phi26 = phi ptr [ %a, %bb17 ], [ %call1, %bb22 ]
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%phi27 = phi ptr [ %call1, %bb17 ], [ %call1, %bb22 ]
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%phi28 = phi ptr [ %call1, %bb17 ], [ %call1, %bb22 ]
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store i32 0, ptr %call1, align 4
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br label %bb29
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bb29: ; preds = %bb25, %bb9
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%phi30 = phi ptr [ %call1, %bb9 ], [ %call1, %bb25 ]
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%phi31 = phi ptr [ %call1, %bb9 ], [ %call1, %bb25 ]
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%load32 = load i8, ptr %call1, align 4
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%load33 = load i8, ptr %call1, align 4
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%getelementptr34 = getelementptr i8, ptr %phi31, i64 12
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%getelementptr35 = getelementptr i8, ptr %getelementptr12, i64 12
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br label %bb86
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bb36: ; No predecessors!
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%getelementptr37 = getelementptr i8, ptr %phi30, i64 12
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br label %bb38
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bb38: ; preds = %bb38, %bb36
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%getelementptr39 = getelementptr [0 x i32], ptr %getelementptr34, i64 0, i64 0
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%load40 = load i32, ptr %call1, align 4
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%getelementptr41 = getelementptr [0 x i32], ptr %getelementptr37, i64 0, i64 0
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%load42 = load i32, ptr %call1, align 4
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br label %bb38
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bb43: ; No predecessors!
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%getelementptr44 = getelementptr i8, ptr %getelementptr12, i64 8
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%load45 = load i16, ptr %call1, align 4
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store i16 0, ptr %call1, align 4
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store i8 0, ptr %call1, align 4
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%getelementptr46 = getelementptr i8, ptr %getelementptr12, i64 12
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store i32 0, ptr %call1, align 4
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%getelementptr47 = getelementptr i8, ptr %getelementptr12, i64 16
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store i32 0, ptr %call1, align 4
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br label %bb9
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bb48: ; preds = %bb48, %bb
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%getelementptr49 = getelementptr i8, ptr %call1, i64 0
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%getelementptr50 = getelementptr i8, ptr %getelementptr49, i64 1
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store i8 0, ptr %call1, align 1
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%getelementptr51 = getelementptr i8, ptr %getelementptr49, i64 8
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store i16 0, ptr %call1, align 4
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%getelementptr52 = getelementptr i8, ptr %getelementptr49, i64 12
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store i32 0, ptr %call1, align 4
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br label %bb48
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bb53: ; preds = %bb71, %bb8
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%phi54 = phi ptr [ %call1, %bb8 ], [ %a, %bb71 ]
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%getelementptr55 = getelementptr i8, ptr %phi54, i64 0
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%getelementptr56 = getelementptr i8, ptr %phi54, i64 0
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%getelementptr57 = getelementptr i8, ptr %phi54, i64 0
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%getelementptr58 = getelementptr i8, ptr %getelementptr57, i64 1
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br label %bb71
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bb59: ; No predecessors!
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%getelementptr60 = getelementptr i8, ptr %phi54, i64 0
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%getelementptr61 = getelementptr i8, ptr %getelementptr60, i64 12
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br label %bb67
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bb62: ; No predecessors!
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%getelementptr63 = getelementptr i8, ptr %getelementptr56, i64 8
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%load64 = load i16, ptr %call1, align 4
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%getelementptr65 = getelementptr i8, ptr %getelementptr57, i64 8
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store i16 0, ptr %call1, align 4
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%getelementptr66 = getelementptr i8, ptr %phi54, i64 0
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br label %bb67
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bb67: ; preds = %bb62, %bb59
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%phi68 = phi ptr [ %a, %bb62 ], [ %call1, %bb59 ]
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%phi69 = phi ptr [ %call1, %bb62 ], [ %call1, %bb59 ]
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%phi70 = phi ptr [ %call1, %bb62 ], [ %call1, %bb59 ]
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store i32 0, ptr %call1, align 4
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br label %bb71
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bb71: ; preds = %bb67, %bb53
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%phi72 = phi ptr [ %call1, %bb53 ], [ %call1, %bb67 ]
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%phi73 = phi ptr [ %call1, %bb53 ], [ %call1, %bb67 ]
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%load74 = load i8, ptr %call1, align 4
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%load75 = load i8, ptr %call1, align 4
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%getelementptr76 = getelementptr i8, ptr %phi72, i64 12
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%getelementptr77 = getelementptr i8, ptr %getelementptr57, i64 12
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%getelementptr78 = getelementptr [0 x i32], ptr %getelementptr76, i64 0, i64 0
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%load79 = load i32, ptr %call1, align 4
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%getelementptr80 = getelementptr [0 x i32], ptr %getelementptr77, i64 0, i64 0
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store i32 0, ptr %call1, align 4
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%load81 = load i8, ptr %call1, align 4
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%getelementptr82 = getelementptr i8, ptr %getelementptr57, i64 8
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%load83 = load i16, ptr %call1, align 4
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store i16 0, ptr %call1, align 4
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store i8 0, ptr %call1, align 4
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%getelementptr84 = getelementptr i8, ptr %getelementptr57, i64 12
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store i32 0, ptr %call1, align 4
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%getelementptr85 = getelementptr i8, ptr %getelementptr57, i64 16
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store i32 0, ptr %call1, align 4
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br label %bb53
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bb86: ; preds = %bb86, %bb29
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%getelementptr87 = getelementptr [0 x i32], ptr %getelementptr34, i64 0, i64 0
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%load88 = load i32, ptr %call1, align 4
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%getelementptr89 = getelementptr [0 x i32], ptr %getelementptr35, i64 0, i64 0
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store i32 0, ptr %call1, align 4
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br label %bb86
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}
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declare ptr @malloc(i64)
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; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
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declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #0
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attributes #0 = { nocallback nofree nounwind willreturn memory(argmem: write) }
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