llvm/test/Transforms/PhaseOrdering/X86/excessive-unrolling.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes='default<O3>' -unroll-runtime -S %s | FileCheck %s

target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx"

@b = global [58 x double] zeroinitializer, align 16
@c = global [58 x double] zeroinitializer, align 16
@a = global [58 x double] zeroinitializer, align 16

; Test case for #42332, showing excessive unrolling of vector loop.
define void @test_known_trip_count() {
; CHECK-LABEL: @test_known_trip_count(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[WIDE_LOAD:%.*]] = load <2 x double>, ptr @b, align 16
; CHECK-NEXT:    [[WIDE_LOAD3:%.*]] = load <2 x double>, ptr @c, align 16
; CHECK-NEXT:    [[TMP0:%.*]] = fadd <2 x double> [[WIDE_LOAD]], [[WIDE_LOAD3]]
; CHECK-NEXT:    store <2 x double> [[TMP0]], ptr @a, align 16
; CHECK-NEXT:    [[WIDE_LOAD_1:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @b, i64 0, i64 2), align 16
; CHECK-NEXT:    [[WIDE_LOAD3_1:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @c, i64 0, i64 2), align 16
; CHECK-NEXT:    [[TMP1:%.*]] = fadd <2 x double> [[WIDE_LOAD_1]], [[WIDE_LOAD3_1]]
; CHECK-NEXT:    store <2 x double> [[TMP1]], ptr getelementptr inbounds ([58 x double], ptr @a, i64 0, i64 2), align 16
; CHECK-NEXT:    [[WIDE_LOAD_2:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @b, i64 0, i64 4), align 16
; CHECK-NEXT:    [[WIDE_LOAD3_2:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @c, i64 0, i64 4), align 16
; CHECK-NEXT:    [[TMP2:%.*]] = fadd <2 x double> [[WIDE_LOAD_2]], [[WIDE_LOAD3_2]]
; CHECK-NEXT:    store <2 x double> [[TMP2]], ptr getelementptr inbounds ([58 x double], ptr @a, i64 0, i64 4), align 16
; CHECK-NEXT:    [[WIDE_LOAD_3:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @b, i64 0, i64 6), align 16
; CHECK-NEXT:    [[WIDE_LOAD3_3:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @c, i64 0, i64 6), align 16
; CHECK-NEXT:    [[TMP3:%.*]] = fadd <2 x double> [[WIDE_LOAD_3]], [[WIDE_LOAD3_3]]
; CHECK-NEXT:    store <2 x double> [[TMP3]], ptr getelementptr inbounds ([58 x double], ptr @a, i64 0, i64 6), align 16
; CHECK-NEXT:    [[WIDE_LOAD_4:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @b, i64 0, i64 8), align 16
; CHECK-NEXT:    [[WIDE_LOAD3_4:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @c, i64 0, i64 8), align 16
; CHECK-NEXT:    [[TMP4:%.*]] = fadd <2 x double> [[WIDE_LOAD_4]], [[WIDE_LOAD3_4]]
; CHECK-NEXT:    store <2 x double> [[TMP4]], ptr getelementptr inbounds ([58 x double], ptr @a, i64 0, i64 8), align 16
; CHECK-NEXT:    [[WIDE_LOAD_5:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @b, i64 0, i64 10), align 16
; CHECK-NEXT:    [[WIDE_LOAD3_5:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @c, i64 0, i64 10), align 16
; CHECK-NEXT:    [[TMP5:%.*]] = fadd <2 x double> [[WIDE_LOAD_5]], [[WIDE_LOAD3_5]]
; CHECK-NEXT:    store <2 x double> [[TMP5]], ptr getelementptr inbounds ([58 x double], ptr @a, i64 0, i64 10), align 16
; CHECK-NEXT:    [[WIDE_LOAD_6:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @b, i64 0, i64 12), align 16
; CHECK-NEXT:    [[WIDE_LOAD3_6:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @c, i64 0, i64 12), align 16
; CHECK-NEXT:    [[TMP6:%.*]] = fadd <2 x double> [[WIDE_LOAD_6]], [[WIDE_LOAD3_6]]
; CHECK-NEXT:    store <2 x double> [[TMP6]], ptr getelementptr inbounds ([58 x double], ptr @a, i64 0, i64 12), align 16
; CHECK-NEXT:    [[WIDE_LOAD_7:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @b, i64 0, i64 14), align 16
; CHECK-NEXT:    [[WIDE_LOAD3_7:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @c, i64 0, i64 14), align 16
; CHECK-NEXT:    [[TMP7:%.*]] = fadd <2 x double> [[WIDE_LOAD_7]], [[WIDE_LOAD3_7]]
; CHECK-NEXT:    store <2 x double> [[TMP7]], ptr getelementptr inbounds ([58 x double], ptr @a, i64 0, i64 14), align 16
; CHECK-NEXT:    [[WIDE_LOAD_8:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @b, i64 0, i64 16), align 16
; CHECK-NEXT:    [[WIDE_LOAD3_8:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @c, i64 0, i64 16), align 16
; CHECK-NEXT:    [[TMP8:%.*]] = fadd <2 x double> [[WIDE_LOAD_8]], [[WIDE_LOAD3_8]]
; CHECK-NEXT:    store <2 x double> [[TMP8]], ptr getelementptr inbounds ([58 x double], ptr @a, i64 0, i64 16), align 16
; CHECK-NEXT:    [[WIDE_LOAD_9:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @b, i64 0, i64 18), align 16
; CHECK-NEXT:    [[WIDE_LOAD3_9:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @c, i64 0, i64 18), align 16
; CHECK-NEXT:    [[TMP9:%.*]] = fadd <2 x double> [[WIDE_LOAD_9]], [[WIDE_LOAD3_9]]
; CHECK-NEXT:    store <2 x double> [[TMP9]], ptr getelementptr inbounds ([58 x double], ptr @a, i64 0, i64 18), align 16
; CHECK-NEXT:    [[WIDE_LOAD_10:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @b, i64 0, i64 20), align 16
; CHECK-NEXT:    [[WIDE_LOAD3_10:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @c, i64 0, i64 20), align 16
; CHECK-NEXT:    [[TMP10:%.*]] = fadd <2 x double> [[WIDE_LOAD_10]], [[WIDE_LOAD3_10]]
; CHECK-NEXT:    store <2 x double> [[TMP10]], ptr getelementptr inbounds ([58 x double], ptr @a, i64 0, i64 20), align 16
; CHECK-NEXT:    [[WIDE_LOAD_11:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @b, i64 0, i64 22), align 16
; CHECK-NEXT:    [[WIDE_LOAD3_11:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @c, i64 0, i64 22), align 16
; CHECK-NEXT:    [[TMP11:%.*]] = fadd <2 x double> [[WIDE_LOAD_11]], [[WIDE_LOAD3_11]]
; CHECK-NEXT:    store <2 x double> [[TMP11]], ptr getelementptr inbounds ([58 x double], ptr @a, i64 0, i64 22), align 16
; CHECK-NEXT:    [[WIDE_LOAD_12:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @b, i64 0, i64 24), align 16
; CHECK-NEXT:    [[WIDE_LOAD3_12:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @c, i64 0, i64 24), align 16
; CHECK-NEXT:    [[TMP12:%.*]] = fadd <2 x double> [[WIDE_LOAD_12]], [[WIDE_LOAD3_12]]
; CHECK-NEXT:    store <2 x double> [[TMP12]], ptr getelementptr inbounds ([58 x double], ptr @a, i64 0, i64 24), align 16
; CHECK-NEXT:    [[WIDE_LOAD_13:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @b, i64 0, i64 26), align 16
; CHECK-NEXT:    [[WIDE_LOAD3_13:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @c, i64 0, i64 26), align 16
; CHECK-NEXT:    [[TMP13:%.*]] = fadd <2 x double> [[WIDE_LOAD_13]], [[WIDE_LOAD3_13]]
; CHECK-NEXT:    store <2 x double> [[TMP13]], ptr getelementptr inbounds ([58 x double], ptr @a, i64 0, i64 26), align 16
; CHECK-NEXT:    [[WIDE_LOAD_14:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @b, i64 0, i64 28), align 16
; CHECK-NEXT:    [[WIDE_LOAD3_14:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @c, i64 0, i64 28), align 16
; CHECK-NEXT:    [[TMP14:%.*]] = fadd <2 x double> [[WIDE_LOAD_14]], [[WIDE_LOAD3_14]]
; CHECK-NEXT:    store <2 x double> [[TMP14]], ptr getelementptr inbounds ([58 x double], ptr @a, i64 0, i64 28), align 16
; CHECK-NEXT:    [[WIDE_LOAD_15:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @b, i64 0, i64 30), align 16
; CHECK-NEXT:    [[WIDE_LOAD3_15:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @c, i64 0, i64 30), align 16
; CHECK-NEXT:    [[TMP15:%.*]] = fadd <2 x double> [[WIDE_LOAD_15]], [[WIDE_LOAD3_15]]
; CHECK-NEXT:    store <2 x double> [[TMP15]], ptr getelementptr inbounds ([58 x double], ptr @a, i64 0, i64 30), align 16
; CHECK-NEXT:    [[WIDE_LOAD_16:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @b, i64 0, i64 32), align 16
; CHECK-NEXT:    [[WIDE_LOAD3_16:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @c, i64 0, i64 32), align 16
; CHECK-NEXT:    [[TMP16:%.*]] = fadd <2 x double> [[WIDE_LOAD_16]], [[WIDE_LOAD3_16]]
; CHECK-NEXT:    store <2 x double> [[TMP16]], ptr getelementptr inbounds ([58 x double], ptr @a, i64 0, i64 32), align 16
; CHECK-NEXT:    [[WIDE_LOAD_17:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @b, i64 0, i64 34), align 16
; CHECK-NEXT:    [[WIDE_LOAD3_17:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @c, i64 0, i64 34), align 16
; CHECK-NEXT:    [[TMP17:%.*]] = fadd <2 x double> [[WIDE_LOAD_17]], [[WIDE_LOAD3_17]]
; CHECK-NEXT:    store <2 x double> [[TMP17]], ptr getelementptr inbounds ([58 x double], ptr @a, i64 0, i64 34), align 16
; CHECK-NEXT:    [[WIDE_LOAD_18:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @b, i64 0, i64 36), align 16
; CHECK-NEXT:    [[WIDE_LOAD3_18:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @c, i64 0, i64 36), align 16
; CHECK-NEXT:    [[TMP18:%.*]] = fadd <2 x double> [[WIDE_LOAD_18]], [[WIDE_LOAD3_18]]
; CHECK-NEXT:    store <2 x double> [[TMP18]], ptr getelementptr inbounds ([58 x double], ptr @a, i64 0, i64 36), align 16
; CHECK-NEXT:    [[WIDE_LOAD_19:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @b, i64 0, i64 38), align 16
; CHECK-NEXT:    [[WIDE_LOAD3_19:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @c, i64 0, i64 38), align 16
; CHECK-NEXT:    [[TMP19:%.*]] = fadd <2 x double> [[WIDE_LOAD_19]], [[WIDE_LOAD3_19]]
; CHECK-NEXT:    store <2 x double> [[TMP19]], ptr getelementptr inbounds ([58 x double], ptr @a, i64 0, i64 38), align 16
; CHECK-NEXT:    [[WIDE_LOAD_20:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @b, i64 0, i64 40), align 16
; CHECK-NEXT:    [[WIDE_LOAD3_20:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @c, i64 0, i64 40), align 16
; CHECK-NEXT:    [[TMP20:%.*]] = fadd <2 x double> [[WIDE_LOAD_20]], [[WIDE_LOAD3_20]]
; CHECK-NEXT:    store <2 x double> [[TMP20]], ptr getelementptr inbounds ([58 x double], ptr @a, i64 0, i64 40), align 16
; CHECK-NEXT:    [[WIDE_LOAD_21:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @b, i64 0, i64 42), align 16
; CHECK-NEXT:    [[WIDE_LOAD3_21:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @c, i64 0, i64 42), align 16
; CHECK-NEXT:    [[TMP21:%.*]] = fadd <2 x double> [[WIDE_LOAD_21]], [[WIDE_LOAD3_21]]
; CHECK-NEXT:    store <2 x double> [[TMP21]], ptr getelementptr inbounds ([58 x double], ptr @a, i64 0, i64 42), align 16
; CHECK-NEXT:    [[WIDE_LOAD_22:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @b, i64 0, i64 44), align 16
; CHECK-NEXT:    [[WIDE_LOAD3_22:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @c, i64 0, i64 44), align 16
; CHECK-NEXT:    [[TMP22:%.*]] = fadd <2 x double> [[WIDE_LOAD_22]], [[WIDE_LOAD3_22]]
; CHECK-NEXT:    store <2 x double> [[TMP22]], ptr getelementptr inbounds ([58 x double], ptr @a, i64 0, i64 44), align 16
; CHECK-NEXT:    [[WIDE_LOAD_23:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @b, i64 0, i64 46), align 16
; CHECK-NEXT:    [[WIDE_LOAD3_23:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @c, i64 0, i64 46), align 16
; CHECK-NEXT:    [[TMP23:%.*]] = fadd <2 x double> [[WIDE_LOAD_23]], [[WIDE_LOAD3_23]]
; CHECK-NEXT:    store <2 x double> [[TMP23]], ptr getelementptr inbounds ([58 x double], ptr @a, i64 0, i64 46), align 16
; CHECK-NEXT:    [[WIDE_LOAD_24:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @b, i64 0, i64 48), align 16
; CHECK-NEXT:    [[WIDE_LOAD3_24:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @c, i64 0, i64 48), align 16
; CHECK-NEXT:    [[TMP24:%.*]] = fadd <2 x double> [[WIDE_LOAD_24]], [[WIDE_LOAD3_24]]
; CHECK-NEXT:    store <2 x double> [[TMP24]], ptr getelementptr inbounds ([58 x double], ptr @a, i64 0, i64 48), align 16
; CHECK-NEXT:    [[WIDE_LOAD_25:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @b, i64 0, i64 50), align 16
; CHECK-NEXT:    [[WIDE_LOAD3_25:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @c, i64 0, i64 50), align 16
; CHECK-NEXT:    [[TMP25:%.*]] = fadd <2 x double> [[WIDE_LOAD_25]], [[WIDE_LOAD3_25]]
; CHECK-NEXT:    store <2 x double> [[TMP25]], ptr getelementptr inbounds ([58 x double], ptr @a, i64 0, i64 50), align 16
; CHECK-NEXT:    [[WIDE_LOAD_26:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @b, i64 0, i64 52), align 16
; CHECK-NEXT:    [[WIDE_LOAD3_26:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @c, i64 0, i64 52), align 16
; CHECK-NEXT:    [[TMP26:%.*]] = fadd <2 x double> [[WIDE_LOAD_26]], [[WIDE_LOAD3_26]]
; CHECK-NEXT:    store <2 x double> [[TMP26]], ptr getelementptr inbounds ([58 x double], ptr @a, i64 0, i64 52), align 16
; CHECK-NEXT:    [[WIDE_LOAD_27:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @b, i64 0, i64 54), align 16
; CHECK-NEXT:    [[WIDE_LOAD3_27:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @c, i64 0, i64 54), align 16
; CHECK-NEXT:    [[TMP27:%.*]] = fadd <2 x double> [[WIDE_LOAD_27]], [[WIDE_LOAD3_27]]
; CHECK-NEXT:    store <2 x double> [[TMP27]], ptr getelementptr inbounds ([58 x double], ptr @a, i64 0, i64 54), align 16
; CHECK-NEXT:    [[WIDE_LOAD_28:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @b, i64 0, i64 56), align 16
; CHECK-NEXT:    [[WIDE_LOAD3_28:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @c, i64 0, i64 56), align 16
; CHECK-NEXT:    [[TMP28:%.*]] = fadd <2 x double> [[WIDE_LOAD_28]], [[WIDE_LOAD3_28]]
; CHECK-NEXT:    store <2 x double> [[TMP28]], ptr getelementptr inbounds ([58 x double], ptr @a, i64 0, i64 56), align 16
; CHECK-NEXT:    [[WIDE_LOAD_29:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @b, i64 1, i64 0), align 16
; CHECK-NEXT:    [[WIDE_LOAD3_29:%.*]] = load <2 x double>, ptr getelementptr inbounds ([58 x double], ptr @c, i64 1, i64 0), align 16
; CHECK-NEXT:    [[TMP29:%.*]] = fadd <2 x double> [[WIDE_LOAD_29]], [[WIDE_LOAD3_29]]
; CHECK-NEXT:    store <2 x double> [[TMP29]], ptr getelementptr inbounds ([58 x double], ptr @a, i64 1, i64 0), align 16
; CHECK-NEXT:    [[TMP30:%.*]] = load double, ptr getelementptr inbounds ([58 x double], ptr @b, i64 1, i64 2), align 16
; CHECK-NEXT:    [[TMP31:%.*]] = load double, ptr getelementptr inbounds ([58 x double], ptr @c, i64 1, i64 2), align 16
; CHECK-NEXT:    [[ADD:%.*]] = fadd double [[TMP30]], [[TMP31]]
; CHECK-NEXT:    store double [[ADD]], ptr getelementptr inbounds ([58 x double], ptr @a, i64 1, i64 2), align 16
; CHECK-NEXT:    ret void
;
entry:
  br label %for.cond

for.cond:
  %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
  %cmp = icmp slt i32 %i.0, 61
  br i1 %cmp, label %for.body, label %exit

for.body:
  %idxprom = sext i32 %i.0 to i64
  %arrayidx = getelementptr inbounds [58 x double], ptr @b, i64 0, i64 %idxprom
  %0 = load double, ptr %arrayidx, align 8
  %idxprom1 = sext i32 %i.0 to i64
  %arrayidx2 = getelementptr inbounds [58 x double], ptr @c, i64 0, i64 %idxprom1
  %1 = load double, ptr %arrayidx2, align 8
  %add = fadd double %0, %1
  %idxprom3 = sext i32 %i.0 to i64
  %arrayidx4 = getelementptr inbounds [58 x double], ptr @a, i64 0, i64 %idxprom3
  store double %add, ptr %arrayidx4, align 8
  %inc = add nsw i32 %i.0, 1
  br label %for.cond

exit:
  ret void
}


define void @test_runtime_trip_count(i32 %N) {
; CHECK-LABEL: @test_runtime_trip_count(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[CMP1:%.*]] = icmp sgt i32 [[N:%.*]], 0
; CHECK-NEXT:    br i1 [[CMP1]], label [[FOR_BODY_PREHEADER:%.*]], label [[EXIT:%.*]]
; CHECK:       for.body.preheader:
; CHECK-NEXT:    [[WIDE_TRIP_COUNT:%.*]] = zext nneg i32 [[N]] to i64
; CHECK-NEXT:    [[MIN_ITERS_CHECK:%.*]] = icmp ult i32 [[N]], 4
; CHECK-NEXT:    br i1 [[MIN_ITERS_CHECK]], label [[FOR_BODY_PREHEADER7:%.*]], label [[VECTOR_PH:%.*]]
; CHECK:       vector.ph:
; CHECK-NEXT:    [[N_VEC:%.*]] = and i64 [[WIDE_TRIP_COUNT]], 2147483644
; CHECK-NEXT:    br label [[VECTOR_BODY:%.*]]
; CHECK:       vector.body:
; CHECK-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT:    [[TMP0:%.*]] = getelementptr inbounds [58 x double], ptr @b, i64 0, i64 [[INDEX]]
; CHECK-NEXT:    [[TMP1:%.*]] = getelementptr inbounds double, ptr [[TMP0]], i64 2
; CHECK-NEXT:    [[WIDE_LOAD:%.*]] = load <2 x double>, ptr [[TMP0]], align 16
; CHECK-NEXT:    [[WIDE_LOAD4:%.*]] = load <2 x double>, ptr [[TMP1]], align 16
; CHECK-NEXT:    [[TMP2:%.*]] = getelementptr inbounds [58 x double], ptr @c, i64 0, i64 [[INDEX]]
; CHECK-NEXT:    [[TMP3:%.*]] = getelementptr inbounds double, ptr [[TMP2]], i64 2
; CHECK-NEXT:    [[WIDE_LOAD5:%.*]] = load <2 x double>, ptr [[TMP2]], align 16
; CHECK-NEXT:    [[WIDE_LOAD6:%.*]] = load <2 x double>, ptr [[TMP3]], align 16
; CHECK-NEXT:    [[TMP4:%.*]] = fadd <2 x double> [[WIDE_LOAD]], [[WIDE_LOAD5]]
; CHECK-NEXT:    [[TMP5:%.*]] = fadd <2 x double> [[WIDE_LOAD4]], [[WIDE_LOAD6]]
; CHECK-NEXT:    [[TMP6:%.*]] = getelementptr inbounds [58 x double], ptr @a, i64 0, i64 [[INDEX]]
; CHECK-NEXT:    [[TMP7:%.*]] = getelementptr inbounds double, ptr [[TMP6]], i64 2
; CHECK-NEXT:    store <2 x double> [[TMP4]], ptr [[TMP6]], align 16
; CHECK-NEXT:    store <2 x double> [[TMP5]], ptr [[TMP7]], align 16
; CHECK-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-NEXT:    [[TMP8:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT:    br i1 [[TMP8]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
; CHECK:       middle.block:
; CHECK-NEXT:    [[CMP_N:%.*]] = icmp eq i64 [[N_VEC]], [[WIDE_TRIP_COUNT]]
; CHECK-NEXT:    br i1 [[CMP_N]], label [[EXIT]], label [[FOR_BODY_PREHEADER7]]
; CHECK:       for.body.preheader7:
; CHECK-NEXT:    [[INDVARS_IV_PH:%.*]] = phi i64 [ 0, [[FOR_BODY_PREHEADER]] ], [ [[N_VEC]], [[MIDDLE_BLOCK]] ]
; CHECK-NEXT:    br label [[FOR_BODY:%.*]]
; CHECK:       for.body:
; CHECK-NEXT:    [[INDVARS_IV:%.*]] = phi i64 [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ], [ [[INDVARS_IV_PH]], [[FOR_BODY_PREHEADER7]] ]
; CHECK-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds [58 x double], ptr @b, i64 0, i64 [[INDVARS_IV]]
; CHECK-NEXT:    [[TMP9:%.*]] = load double, ptr [[ARRAYIDX]], align 8
; CHECK-NEXT:    [[ARRAYIDX2:%.*]] = getelementptr inbounds [58 x double], ptr @c, i64 0, i64 [[INDVARS_IV]]
; CHECK-NEXT:    [[TMP10:%.*]] = load double, ptr [[ARRAYIDX2]], align 8
; CHECK-NEXT:    [[ADD:%.*]] = fadd double [[TMP9]], [[TMP10]]
; CHECK-NEXT:    [[ARRAYIDX4:%.*]] = getelementptr inbounds [58 x double], ptr @a, i64 0, i64 [[INDVARS_IV]]
; CHECK-NEXT:    store double [[ADD]], ptr [[ARRAYIDX4]], align 8
; CHECK-NEXT:    [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1
; CHECK-NEXT:    [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT]], [[WIDE_TRIP_COUNT]]
; CHECK-NEXT:    br i1 [[EXITCOND_NOT]], label [[EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]]
; CHECK:       exit:
; CHECK-NEXT:    ret void
;
entry:
  br label %for.cond

for.cond:
  %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
  %cmp = icmp slt i32 %i.0, %N
  br i1 %cmp, label %for.body, label %exit

for.body:
  %idxprom = sext i32 %i.0 to i64
  %arrayidx = getelementptr inbounds [58 x double], ptr @b, i64 0, i64 %idxprom
  %0 = load double, ptr %arrayidx, align 8
  %idxprom1 = sext i32 %i.0 to i64
  %arrayidx2 = getelementptr inbounds [58 x double], ptr @c, i64 0, i64 %idxprom1
  %1 = load double, ptr %arrayidx2, align 8
  %add = fadd double %0, %1
  %idxprom3 = sext i32 %i.0 to i64
  %arrayidx4 = getelementptr inbounds [58 x double], ptr @a, i64 0, i64 %idxprom3
  store double %add, ptr %arrayidx4, align 8
  %inc = add nsw i32 %i.0, 1
  br label %for.cond

exit:
  ret void
}