derek.holloway
7502bf64a4
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63 lines
2.5 KiB
LLVM
63 lines
2.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
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; RUN: opt -S -passes=loop-unroll-full -unroll-full-max-count=1 %s | FileCheck %s
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@GlobIntONE = global i32 0, align 4
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; Make sure we don't reuse the phi (undef, X) for X.
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define ptr @test() {
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; CHECK-LABEL: define ptr @test() {
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; CHECK-NEXT: [[ENTRY:.*:]]
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; CHECK-NEXT: br label %[[FOR_BODY_PEEL_BEGIN:.*]]
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; CHECK: [[FOR_BODY_PEEL_BEGIN]]:
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; CHECK-NEXT: br label %[[FOR_BODY_PEEL:.*]]
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; CHECK: [[FOR_BODY_PEEL]]:
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; CHECK-NEXT: br i1 true, label %[[CLEANUP_PEEL:.*]], label %[[CLEANUP_LOOPEXIT_PEEL:.*]]
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; CHECK: [[CLEANUP_LOOPEXIT_PEEL]]:
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; CHECK-NEXT: br label %[[CLEANUP_PEEL]]
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; CHECK: [[CLEANUP_PEEL]]:
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; CHECK-NEXT: [[RETVAL_2_PEEL:%.*]] = phi ptr [ undef, %[[FOR_BODY_PEEL]] ], [ @GlobIntONE, %[[CLEANUP_LOOPEXIT_PEEL]] ]
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; CHECK-NEXT: br i1 true, label %[[FOR_BODY_PEEL_NEXT:.*]], label %[[CLEANUP2:.*]]
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; CHECK: [[FOR_BODY_PEEL_NEXT]]:
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; CHECK-NEXT: br label %[[FOR_BODY_PEEL_NEXT1:.*]]
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; CHECK: [[FOR_BODY_PEEL_NEXT1]]:
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; CHECK-NEXT: br label %[[ENTRY_PEEL_NEWPH:.*]]
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; CHECK: [[ENTRY_PEEL_NEWPH]]:
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; CHECK-NEXT: br label %[[FOR_BODY:.*]]
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; CHECK: [[FOR_BODY]]:
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; CHECK-NEXT: br i1 false, label %[[CLEANUP:.*]], label %[[CLEANUP_LOOPEXIT:.*]]
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; CHECK: [[CLEANUP_LOOPEXIT]]:
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; CHECK-NEXT: br label %[[CLEANUP]]
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; CHECK: [[CLEANUP]]:
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; CHECK-NEXT: br i1 false, label %[[FOR_BODY]], label %[[CLEANUP2_LOOPEXIT:.*]], !llvm.loop [[LOOP0:![0-9]+]]
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; CHECK: [[CLEANUP2_LOOPEXIT]]:
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; CHECK-NEXT: [[RETVAL_2_LCSSA_PH:%.*]] = phi ptr [ @GlobIntONE, %[[CLEANUP]] ]
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; CHECK-NEXT: br label %[[CLEANUP2]]
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; CHECK: [[CLEANUP2]]:
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; CHECK-NEXT: [[RETVAL_2_LCSSA:%.*]] = phi ptr [ [[RETVAL_2_PEEL]], %[[CLEANUP_PEEL]] ], [ [[RETVAL_2_LCSSA_PH]], %[[CLEANUP2_LOOPEXIT]] ]
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; CHECK-NEXT: ret ptr [[RETVAL_2_LCSSA]]
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;
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entry:
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br label %for.body
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for.body:
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%retval.0 = phi ptr [ undef, %entry ], [ %retval.2, %cleanup ]
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%cmp1.not = phi i1 [ true, %entry ], [ false, %cleanup ]
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br i1 %cmp1.not, label %cleanup, label %cleanup.loopexit
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cleanup.loopexit:
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br label %cleanup
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cleanup:
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%retval.2 = phi ptr [ %retval.0, %for.body ], [ @GlobIntONE, %cleanup.loopexit ]
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br i1 %cmp1.not, label %for.body, label %cleanup2
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cleanup2:
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%retval.2.lcssa = phi ptr [ %retval.2, %cleanup ]
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ret ptr %retval.2.lcssa
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}
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;.
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; CHECK: [[LOOP0]] = distinct !{[[LOOP0]], [[META1:![0-9]+]]}
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; CHECK: [[META1]] = !{!"llvm.loop.peeled.count", i32 1}
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;.
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