test/Transforms/LoopVectorize/extract-value-widen.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals none --version 6
; RUN: opt < %s -passes=loop-vectorize -force-vector-width=2 -force-vector-interleave=1 -S 2>%t | FileCheck %s

; Regression test for https://github.com/llvm/llvm-project/issues/193275

define void @func(ptr %p) {
; CHECK-LABEL: define void @func(
; CHECK-SAME: ptr [[P:%.*]]) {
; CHECK-NEXT:  [[ENTRY:.*:]]
; CHECK-NEXT:    br label %[[VECTOR_PH:.*]]
; CHECK:       [[VECTOR_PH]]:
; CHECK-NEXT:    br label %[[VECTOR_BODY:.*]]
; CHECK:       [[VECTOR_BODY]]:
; CHECK-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[VECTOR_BODY]] ]
; CHECK-NEXT:    [[TMP0:%.*]] = call { i64, i1 } @llvm.sadd.with.overflow.i64(i64 [[INDEX]], i64 1)
; CHECK-NEXT:    [[TMP2:%.*]] = extractvalue { i64, i1 } [[TMP0]], 0
; CHECK-NEXT:    [[TMP3:%.*]] = getelementptr [8 x i8], ptr [[P]], i64 [[TMP2]]
; CHECK-NEXT:    store <2 x i64> zeroinitializer, ptr [[TMP3]], align 8
; CHECK-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 2
; CHECK-NEXT:    [[TMP4:%.*]] = icmp eq i64 [[INDEX_NEXT]], -9223372036854775808
; CHECK-NEXT:    br i1 [[TMP4]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
; CHECK:       [[MIDDLE_BLOCK]]:
; CHECK-NEXT:    br label %[[EXIT:.*]]
; CHECK:       [[EXIT]]:
; CHECK-NEXT:    ret void
;
entry:
  br label %loop.header

loop.header:
  %iv.1 = phi i64 [ 0, %entry ], [ %iv.next1, %loop.header ]
  %iv.2 = phi i64 [ 0, %entry ], [ %iv.next2, %loop.header ]
  %res1 = call { i64, i1 } @llvm.sadd.with.overflow.i64(i64 %iv.1, i64 1)
  %iv.next1 = extractvalue { i64, i1 } %res1, 0
  %arrayidx37 = getelementptr [8 x i8], ptr %p, i64 %iv.next1
  store i64 0, ptr %arrayidx37, align 8
  %res2 = tail call { i64, i1 } @llvm.sadd.with.overflow.i64(i64 %iv.2, i64 1)
  %iv.next2 = extractvalue { i64, i1 } %res2, 0
  %overflow2 = extractvalue { i64, i1 } %res2, 1
  br i1 %overflow2, label %exit, label %loop.header

exit:
  ret void
}