derek.holloway
7502bf64a4
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71 lines
2.8 KiB
LLVM
71 lines
2.8 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-interchange -verify-dom-info -verify-loop-info -S -da-enable-dependence-test=all 2>&1 | FileCheck %s
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@A = common global [100 x [100 x i64]] zeroinitializer
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@N = dso_local local_unnamed_addr global i64 100, align 8
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; Inner loop induction variable exit condition depends on
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; an outer loop invariant, can do interchange.
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;
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define void @interchange_04(i64 %k) {
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; CHECK-LABEL: define void @interchange_04(
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; CHECK-SAME: i64 [[K:%.*]]) {
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; CHECK-NEXT: [[ENTRY:.*:]]
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; CHECK-NEXT: [[TMP0:%.*]] = load i64, ptr @N, align 4
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; CHECK-NEXT: br label %[[FOR2_PREHEADER:.*]]
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; CHECK: [[FOR1_HEADER_PREHEADER:.*]]:
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; CHECK-NEXT: br label %[[FOR1_HEADER:.*]]
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; CHECK: [[FOR1_HEADER]]:
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; CHECK-NEXT: [[I:%.*]] = phi i64 [ [[I_NEXT:%.*]], %[[FOR1_INC10:.*]] ], [ 0, %[[FOR1_HEADER_PREHEADER]] ]
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; CHECK-NEXT: br label %[[FOR2_SPLIT1:.*]]
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; CHECK: [[FOR2_PREHEADER]]:
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; CHECK-NEXT: br label %[[FOR2:.*]]
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; CHECK: [[FOR2]]:
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; CHECK-NEXT: [[J:%.*]] = phi i64 [ [[TMP1:%.*]], %[[FOR2_SPLIT:.*]] ], [ 0, %[[FOR2_PREHEADER]] ]
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; CHECK-NEXT: br label %[[FOR1_HEADER_PREHEADER]]
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; CHECK: [[FOR2_SPLIT1]]:
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; CHECK-NEXT: [[ARRAYIDX5:%.*]] = getelementptr inbounds [100 x [100 x i64]], ptr @A, i64 0, i64 [[J]], i64 [[I]]
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; CHECK-NEXT: [[LV:%.*]] = load i64, ptr [[ARRAYIDX5]], align 4
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; CHECK-NEXT: [[ADD:%.*]] = add nsw i64 [[LV]], [[K]]
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; CHECK-NEXT: store i64 [[ADD]], ptr [[ARRAYIDX5]], align 4
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; CHECK-NEXT: [[J_NEXT:%.*]] = add nuw nsw i64 [[J]], 1
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; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[TMP0]], [[J]]
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; CHECK-NEXT: br label %[[FOR1_INC10]]
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; CHECK: [[FOR2_SPLIT]]:
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; CHECK-NEXT: [[TMP1]] = add nuw nsw i64 [[J]], 1
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; CHECK-NEXT: [[TMP2:%.*]] = icmp ne i64 [[TMP0]], [[J]]
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; CHECK-NEXT: br i1 [[TMP2]], label %[[FOR2]], label %[[FOR_END12:.*]]
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; CHECK: [[FOR1_INC10]]:
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; CHECK-NEXT: [[I_NEXT]] = add nuw nsw i64 [[I]], 1
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; CHECK-NEXT: [[EXITCOND26:%.*]] = icmp eq i64 [[I]], 99
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; CHECK-NEXT: br i1 [[EXITCOND26]], label %[[FOR2_SPLIT]], label %[[FOR1_HEADER]]
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; CHECK: [[FOR_END12]]:
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; CHECK-NEXT: ret void
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;
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entry:
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%0 = load i64, ptr @N, align 4
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br label %for1.header
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for1.header:
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%i = phi i64 [ 0, %entry ], [ %i.next, %for1.inc10 ]
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br label %for2
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for2:
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%j = phi i64 [ %j.next, %for2 ], [ 0, %for1.header ]
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%arrayidx5 = getelementptr inbounds [100 x [100 x i64]], ptr @A, i64 0, i64 %j, i64 %i
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%lv = load i64, ptr %arrayidx5
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%add = add nsw i64 %lv, %k
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store i64 %add, ptr %arrayidx5
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%j.next = add nuw nsw i64 %j, 1
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%exitcond = icmp ne i64 %0, %j
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br i1 %exitcond, label %for2, label %for1.inc10
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for1.inc10:
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%i.next = add nuw nsw i64 %i, 1
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%exitcond26 = icmp eq i64 %i, 99
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br i1 %exitcond26, label %for.end12, label %for1.header
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for.end12:
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ret void
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}
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