derek.holloway
7502bf64a4
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45 lines
2.0 KiB
LLVM
45 lines
2.0 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals none --version 6
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; RUN: opt < %s -passes=loop-vectorize -force-vector-width=2 -force-vector-interleave=1 -S 2>%t | FileCheck %s
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; Regression test for https://github.com/llvm/llvm-project/issues/193275
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define void @func(ptr %p) {
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; CHECK-LABEL: define void @func(
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; CHECK-SAME: ptr [[P:%.*]]) {
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; CHECK-NEXT: [[ENTRY:.*:]]
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; CHECK-NEXT: br label %[[VECTOR_PH:.*]]
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; CHECK: [[VECTOR_PH]]:
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; CHECK-NEXT: br label %[[VECTOR_BODY:.*]]
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; CHECK: [[VECTOR_BODY]]:
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; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
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; CHECK-NEXT: [[TMP0:%.*]] = call { i64, i1 } @llvm.sadd.with.overflow.i64(i64 [[INDEX]], i64 1)
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; CHECK-NEXT: [[TMP2:%.*]] = extractvalue { i64, i1 } [[TMP0]], 0
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; CHECK-NEXT: [[TMP3:%.*]] = getelementptr [8 x i8], ptr [[P]], i64 [[TMP2]]
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; CHECK-NEXT: store <2 x i64> zeroinitializer, ptr [[TMP3]], align 8
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; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 2
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; CHECK-NEXT: [[TMP4:%.*]] = icmp eq i64 [[INDEX_NEXT]], -9223372036854775808
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; CHECK-NEXT: br i1 [[TMP4]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
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; CHECK: [[MIDDLE_BLOCK]]:
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; CHECK-NEXT: br label %[[EXIT:.*]]
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; CHECK: [[EXIT]]:
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; CHECK-NEXT: ret void
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;
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entry:
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br label %loop.header
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loop.header:
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%iv.1 = phi i64 [ 0, %entry ], [ %iv.next1, %loop.header ]
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%iv.2 = phi i64 [ 0, %entry ], [ %iv.next2, %loop.header ]
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%res1 = call { i64, i1 } @llvm.sadd.with.overflow.i64(i64 %iv.1, i64 1)
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%iv.next1 = extractvalue { i64, i1 } %res1, 0
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%arrayidx37 = getelementptr [8 x i8], ptr %p, i64 %iv.next1
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store i64 0, ptr %arrayidx37, align 8
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%res2 = tail call { i64, i1 } @llvm.sadd.with.overflow.i64(i64 %iv.2, i64 1)
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%iv.next2 = extractvalue { i64, i1 } %res2, 0
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%overflow2 = extractvalue { i64, i1 } %res2, 1
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br i1 %overflow2, label %exit, label %loop.header
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exit:
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ret void
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}
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