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[ValueTracking] Perform a local edge implication check for isKnownNonNegative #72437

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9 changes: 8 additions & 1 deletion llvm/lib/Analysis/ValueTracking.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -291,7 +291,14 @@ bool llvm::isKnownNonNegative(const Value *V, const DataLayout &DL,
const Instruction *CxtI, const DominatorTree *DT,
bool UseInstrInfo) {
KnownBits Known = computeKnownBits(V, DL, Depth, AC, CxtI, DT, UseInstrInfo);
return Known.isNonNegative();
if (Known.isNonNegative())
return true;

// Look at the immediate proceeding branch to see if it establishes the
// condition we need.
return isImpliedByDomCondition(ICmpInst::ICMP_SGE, V,
Constant::getNullValue(V->getType()), CxtI,
DL).value_or(false);
}

bool llvm::isKnownPositive(const Value *V, const DataLayout &DL, unsigned Depth,
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -865,7 +865,7 @@ define i16 @negation_of_zeroext_of_nonnegative(i8 %x) {
; CHECK-NEXT: [[T1:%.*]] = icmp sgt i8 [[T0]], -1
; CHECK-NEXT: br i1 [[T1]], label [[NONNEG_BB:%.*]], label [[NEG_BB:%.*]]
; CHECK: nonneg_bb:
; CHECK-NEXT: [[T2:%.*]] = zext i8 [[T0]] to i16
; CHECK-NEXT: [[T2:%.*]] = zext nneg i8 [[T0]] to i16
; CHECK-NEXT: [[T3:%.*]] = sub nsw i16 0, [[T2]]
; CHECK-NEXT: ret i16 [[T3]]
; CHECK: neg_bb:
Expand All @@ -889,7 +889,7 @@ define i16 @negation_of_zeroext_of_positive(i8 %x) {
; CHECK-NEXT: [[T1:%.*]] = icmp sgt i8 [[T0]], 0
; CHECK-NEXT: br i1 [[T1]], label [[NONNEG_BB:%.*]], label [[NEG_BB:%.*]]
; CHECK: nonneg_bb:
; CHECK-NEXT: [[T2:%.*]] = zext i8 [[T0]] to i16
; CHECK-NEXT: [[T2:%.*]] = zext nneg i8 [[T0]] to i16
; CHECK-NEXT: [[T3:%.*]] = sub nsw i16 0, [[T2]]
; CHECK-NEXT: ret i16 [[T3]]
; CHECK: neg_bb:
Expand Down Expand Up @@ -961,7 +961,7 @@ define i16 @negation_of_signext_of_nonnegative__wrong_cast(i8 %x) {
; CHECK-NEXT: [[T1:%.*]] = icmp sgt i8 [[T0]], -1
; CHECK-NEXT: br i1 [[T1]], label [[NONNEG_BB:%.*]], label [[NEG_BB:%.*]]
; CHECK: nonneg_bb:
; CHECK-NEXT: [[T2:%.*]] = sext i8 [[T0]] to i16
; CHECK-NEXT: [[T2:%.*]] = zext nneg i8 [[T0]] to i16
; CHECK-NEXT: [[T3:%.*]] = sub nsw i16 0, [[T2]]
; CHECK-NEXT: ret i16 [[T3]]
; CHECK: neg_bb:
Expand Down
6 changes: 3 additions & 3 deletions llvm/test/Transforms/InstCombine/sub-of-negatible.ll
Original file line number Diff line number Diff line change
Expand Up @@ -889,7 +889,7 @@ define i16 @negation_of_zeroext_of_nonnegative(i8 %x) {
; CHECK-NEXT: [[T1:%.*]] = icmp sgt i8 [[T0]], -1
; CHECK-NEXT: br i1 [[T1]], label [[NONNEG_BB:%.*]], label [[NEG_BB:%.*]]
; CHECK: nonneg_bb:
; CHECK-NEXT: [[T2:%.*]] = zext i8 [[T0]] to i16
; CHECK-NEXT: [[T2:%.*]] = zext nneg i8 [[T0]] to i16
; CHECK-NEXT: [[T3:%.*]] = sub nsw i16 0, [[T2]]
; CHECK-NEXT: ret i16 [[T3]]
; CHECK: neg_bb:
Expand All @@ -913,7 +913,7 @@ define i16 @negation_of_zeroext_of_positive(i8 %x) {
; CHECK-NEXT: [[T1:%.*]] = icmp sgt i8 [[T0]], 0
; CHECK-NEXT: br i1 [[T1]], label [[NONNEG_BB:%.*]], label [[NEG_BB:%.*]]
; CHECK: nonneg_bb:
; CHECK-NEXT: [[T2:%.*]] = zext i8 [[T0]] to i16
; CHECK-NEXT: [[T2:%.*]] = zext nneg i8 [[T0]] to i16
; CHECK-NEXT: [[T3:%.*]] = sub nsw i16 0, [[T2]]
; CHECK-NEXT: ret i16 [[T3]]
; CHECK: neg_bb:
Expand Down Expand Up @@ -985,7 +985,7 @@ define i16 @negation_of_signext_of_nonnegative__wrong_cast(i8 %x) {
; CHECK-NEXT: [[T1:%.*]] = icmp sgt i8 [[T0]], -1
; CHECK-NEXT: br i1 [[T1]], label [[NONNEG_BB:%.*]], label [[NEG_BB:%.*]]
; CHECK: nonneg_bb:
; CHECK-NEXT: [[T2:%.*]] = sext i8 [[T0]] to i16
; CHECK-NEXT: [[T2:%.*]] = zext nneg i8 [[T0]] to i16
; CHECK-NEXT: [[T3:%.*]] = sub nsw i16 0, [[T2]]
; CHECK-NEXT: ret i16 [[T3]]
; CHECK: neg_bb:
Expand Down
80 changes: 40 additions & 40 deletions llvm/test/Transforms/LoopVectorize/float-induction.ll

Large diffs are not rendered by default.

4 changes: 2 additions & 2 deletions llvm/test/Transforms/LoopVectorize/if-conversion-nest.ll
Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,7 @@ define i32 @foo(ptr nocapture %A, ptr nocapture %B, i32 %n) {
; CHECK-NEXT: [[CMP26:%.*]] = icmp sgt i32 [[N:%.*]], 0
; CHECK-NEXT: br i1 [[CMP26]], label [[FOR_BODY_PREHEADER:%.*]], label [[FOR_END:%.*]]
; CHECK: for.body.preheader:
; CHECK-NEXT: [[TMP0:%.*]] = zext i32 [[N]] to i64
; CHECK-NEXT: [[TMP0:%.*]] = zext nneg i32 [[N]] to i64
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i32 [[N]], 4
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_MEMCHECK:%.*]]
; CHECK: vector.memcheck:
Expand All @@ -24,7 +24,7 @@ define i32 @foo(ptr nocapture %A, ptr nocapture %B, i32 %n) {
; CHECK-NEXT: [[FOUND_CONFLICT:%.*]] = and i1 [[BOUND0]], [[BOUND1]]
; CHECK-NEXT: br i1 [[FOUND_CONFLICT]], label [[SCALAR_PH]], label [[VECTOR_PH:%.*]]
; CHECK: vector.ph:
; CHECK-NEXT: [[N_VEC:%.*]] = and i64 [[TMP0]], 4294967292
; CHECK-NEXT: [[N_VEC:%.*]] = and i64 [[TMP0]], 2147483644
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
Expand Down
42 changes: 21 additions & 21 deletions llvm/test/Transforms/LoopVectorize/reduction.ll
Original file line number Diff line number Diff line change
Expand Up @@ -7,11 +7,11 @@ define i32 @reduction_sum(i32 %n, ptr %A, ptr %B) {
; CHECK-NEXT: [[TMP1:%.*]] = icmp sgt i32 [[N]], 0
; CHECK-NEXT: br i1 [[TMP1]], label [[DOTLR_PH_PREHEADER:%.*]], label [[DOT_CRIT_EDGE:%.*]]
; CHECK: .lr.ph.preheader:
; CHECK-NEXT: [[TMP2:%.*]] = zext i32 [[N]] to i64
; CHECK-NEXT: [[TMP2:%.*]] = zext nneg i32 [[N]] to i64
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i32 [[N]], 4
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; CHECK: vector.ph:
; CHECK-NEXT: [[N_VEC:%.*]] = and i64 [[TMP2]], 4294967292
; CHECK-NEXT: [[N_VEC:%.*]] = and i64 [[TMP2]], 2147483644
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
Expand Down Expand Up @@ -88,11 +88,11 @@ define i32 @reduction_prod(i32 %n, ptr %A, ptr %B) {
; CHECK-NEXT: [[TMP1:%.*]] = icmp sgt i32 [[N]], 0
; CHECK-NEXT: br i1 [[TMP1]], label [[DOTLR_PH_PREHEADER:%.*]], label [[DOT_CRIT_EDGE:%.*]]
; CHECK: .lr.ph.preheader:
; CHECK-NEXT: [[TMP2:%.*]] = zext i32 [[N]] to i64
; CHECK-NEXT: [[TMP2:%.*]] = zext nneg i32 [[N]] to i64
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i32 [[N]], 4
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; CHECK: vector.ph:
; CHECK-NEXT: [[N_VEC:%.*]] = and i64 [[TMP2]], 4294967292
; CHECK-NEXT: [[N_VEC:%.*]] = and i64 [[TMP2]], 2147483644
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
Expand Down Expand Up @@ -169,11 +169,11 @@ define i32 @reduction_mix(i32 %n, ptr %A, ptr %B) {
; CHECK-NEXT: [[TMP1:%.*]] = icmp sgt i32 [[N]], 0
; CHECK-NEXT: br i1 [[TMP1]], label [[DOTLR_PH_PREHEADER:%.*]], label [[DOT_CRIT_EDGE:%.*]]
; CHECK: .lr.ph.preheader:
; CHECK-NEXT: [[TMP2:%.*]] = zext i32 [[N]] to i64
; CHECK-NEXT: [[TMP2:%.*]] = zext nneg i32 [[N]] to i64
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i32 [[N]], 4
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; CHECK: vector.ph:
; CHECK-NEXT: [[N_VEC:%.*]] = and i64 [[TMP2]], 4294967292
; CHECK-NEXT: [[N_VEC:%.*]] = and i64 [[TMP2]], 2147483644
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
Expand Down Expand Up @@ -250,11 +250,11 @@ define i32 @reduction_mul(i32 %n, ptr %A, ptr %B) {
; CHECK-NEXT: [[TMP1:%.*]] = icmp sgt i32 [[N]], 0
; CHECK-NEXT: br i1 [[TMP1]], label [[DOTLR_PH_PREHEADER:%.*]], label [[DOT_CRIT_EDGE:%.*]]
; CHECK: .lr.ph.preheader:
; CHECK-NEXT: [[TMP2:%.*]] = zext i32 [[N]] to i64
; CHECK-NEXT: [[TMP2:%.*]] = zext nneg i32 [[N]] to i64
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i32 [[N]], 4
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; CHECK: vector.ph:
; CHECK-NEXT: [[N_VEC:%.*]] = and i64 [[TMP2]], 4294967292
; CHECK-NEXT: [[N_VEC:%.*]] = and i64 [[TMP2]], 2147483644
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
Expand Down Expand Up @@ -332,11 +332,11 @@ define i32 @start_at_non_zero(ptr %in, ptr %coeff, ptr %out, i32 %n) {
; CHECK-NEXT: [[CMP7:%.*]] = icmp sgt i32 [[N]], 0
; CHECK-NEXT: br i1 [[CMP7]], label [[FOR_BODY_PREHEADER:%.*]], label [[FOR_END:%.*]]
; CHECK: for.body.preheader:
; CHECK-NEXT: [[TMP0:%.*]] = zext i32 [[N]] to i64
; CHECK-NEXT: [[TMP0:%.*]] = zext nneg i32 [[N]] to i64
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i32 [[N]], 4
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; CHECK: vector.ph:
; CHECK-NEXT: [[N_VEC:%.*]] = and i64 [[TMP0]], 4294967292
; CHECK-NEXT: [[N_VEC:%.*]] = and i64 [[TMP0]], 2147483644
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
Expand Down Expand Up @@ -408,11 +408,11 @@ define i32 @reduction_and(i32 %n, ptr %A, ptr %B) {
; CHECK-NEXT: [[CMP7:%.*]] = icmp sgt i32 [[N]], 0
; CHECK-NEXT: br i1 [[CMP7]], label [[FOR_BODY_PREHEADER:%.*]], label [[FOR_END:%.*]]
; CHECK: for.body.preheader:
; CHECK-NEXT: [[TMP0:%.*]] = zext i32 [[N]] to i64
; CHECK-NEXT: [[TMP0:%.*]] = zext nneg i32 [[N]] to i64
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i32 [[N]], 4
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; CHECK: vector.ph:
; CHECK-NEXT: [[N_VEC:%.*]] = and i64 [[TMP0]], 4294967292
; CHECK-NEXT: [[N_VEC:%.*]] = and i64 [[TMP0]], 2147483644
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
Expand Down Expand Up @@ -484,11 +484,11 @@ define i32 @reduction_or(i32 %n, ptr %A, ptr %B) {
; CHECK-NEXT: [[CMP7:%.*]] = icmp sgt i32 [[N]], 0
; CHECK-NEXT: br i1 [[CMP7]], label [[FOR_BODY_PREHEADER:%.*]], label [[FOR_END:%.*]]
; CHECK: for.body.preheader:
; CHECK-NEXT: [[TMP0:%.*]] = zext i32 [[N]] to i64
; CHECK-NEXT: [[TMP0:%.*]] = zext nneg i32 [[N]] to i64
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i32 [[N]], 4
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; CHECK: vector.ph:
; CHECK-NEXT: [[N_VEC:%.*]] = and i64 [[TMP0]], 4294967292
; CHECK-NEXT: [[N_VEC:%.*]] = and i64 [[TMP0]], 2147483644
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
Expand Down Expand Up @@ -560,11 +560,11 @@ define i32 @reduction_xor(i32 %n, ptr %A, ptr %B) {
; CHECK-NEXT: [[CMP7:%.*]] = icmp sgt i32 [[N]], 0
; CHECK-NEXT: br i1 [[CMP7]], label [[FOR_BODY_PREHEADER:%.*]], label [[FOR_END:%.*]]
; CHECK: for.body.preheader:
; CHECK-NEXT: [[TMP0:%.*]] = zext i32 [[N]] to i64
; CHECK-NEXT: [[TMP0:%.*]] = zext nneg i32 [[N]] to i64
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i32 [[N]], 4
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; CHECK: vector.ph:
; CHECK-NEXT: [[N_VEC:%.*]] = and i64 [[TMP0]], 4294967292
; CHECK-NEXT: [[N_VEC:%.*]] = and i64 [[TMP0]], 2147483644
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
Expand Down Expand Up @@ -683,11 +683,11 @@ define i32 @reduction_sub_lhs(i32 %n, ptr %A) {
; CHECK-NEXT: [[CMP4:%.*]] = icmp sgt i32 [[N]], 0
; CHECK-NEXT: br i1 [[CMP4]], label [[FOR_BODY_PREHEADER:%.*]], label [[FOR_END:%.*]]
; CHECK: for.body.preheader:
; CHECK-NEXT: [[TMP0:%.*]] = zext i32 [[N]] to i64
; CHECK-NEXT: [[TMP0:%.*]] = zext nneg i32 [[N]] to i64
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i32 [[N]], 4
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; CHECK: vector.ph:
; CHECK-NEXT: [[N_VEC:%.*]] = and i64 [[TMP0]], 4294967292
; CHECK-NEXT: [[N_VEC:%.*]] = and i64 [[TMP0]], 2147483644
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
Expand Down Expand Up @@ -1041,11 +1041,11 @@ define i32 @reduction_sum_multiuse(i32 %n, ptr %A, ptr %B) {
; CHECK-NEXT: [[TMP1:%.*]] = icmp sgt i32 [[N]], 0
; CHECK-NEXT: br i1 [[TMP1]], label [[DOTLR_PH_PREHEADER:%.*]], label [[END:%.*]]
; CHECK: .lr.ph.preheader:
; CHECK-NEXT: [[TMP2:%.*]] = zext i32 [[N]] to i64
; CHECK-NEXT: [[TMP2:%.*]] = zext nneg i32 [[N]] to i64
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i32 [[N]], 4
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; CHECK: vector.ph:
; CHECK-NEXT: [[N_VEC:%.*]] = and i64 [[TMP2]], 4294967292
; CHECK-NEXT: [[N_VEC:%.*]] = and i64 [[TMP2]], 2147483644
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
Expand Down Expand Up @@ -1136,7 +1136,7 @@ define void @reduction_reset(i32 %N, ptr %arrayA, ptr %arrayB) {
; CHECK-NEXT: br i1 [[C4]], label [[DOTLR_PH_PREHEADER:%.*]], label [[DOT_CRIT_EDGE:%.*]]
; CHECK: .lr.ph.preheader:
; CHECK-NEXT: [[C5:%.*]] = add i32 [[N]], -1
; CHECK-NEXT: [[WIDE_TRIP_COUNT:%.*]] = zext i32 [[N]] to i64
; CHECK-NEXT: [[WIDE_TRIP_COUNT:%.*]] = zext nneg i32 [[N]] to i64
; CHECK-NEXT: br label [[DOTLR_PH:%.*]]
; CHECK: .lr.ph:
; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, [[DOTLR_PH_PREHEADER]] ], [ [[INDVARS_IV_NEXT:%.*]], [[DOTLR_PH]] ]
Expand Down
4 changes: 2 additions & 2 deletions llvm/test/Transforms/LoopVectorize/runtime-check.ll
Original file line number Diff line number Diff line change
Expand Up @@ -18,15 +18,15 @@ define i32 @foo(ptr nocapture %a, ptr nocapture %b, i32 %n) nounwind uwtable ssp
; CHECK-NEXT: [[CMP6:%.*]] = icmp sgt i32 [[N:%.*]], 0, !dbg [[DBG4]]
; CHECK-NEXT: br i1 [[CMP6]], label [[FOR_BODY_PREHEADER:%.*]], label [[FOR_END:%.*]], !dbg [[DBG4]]
; CHECK: for.body.preheader:
; CHECK-NEXT: [[TMP0:%.*]] = zext i32 [[N]] to i64, !dbg [[DBG9:![0-9]+]]
; CHECK-NEXT: [[TMP0:%.*]] = zext nneg i32 [[N]] to i64, !dbg [[DBG9:![0-9]+]]
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i32 [[N]], 4, !dbg [[DBG9]]
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_MEMCHECK:%.*]], !dbg [[DBG9]]
; CHECK: vector.memcheck:
; CHECK-NEXT: [[TMP1:%.*]] = sub i64 [[A1]], [[B2]], !dbg [[DBG9]]
; CHECK-NEXT: [[DIFF_CHECK:%.*]] = icmp ult i64 [[TMP1]], 16, !dbg [[DBG9]]
; CHECK-NEXT: br i1 [[DIFF_CHECK]], label [[SCALAR_PH]], label [[VECTOR_PH:%.*]], !dbg [[DBG9]]
; CHECK: vector.ph:
; CHECK-NEXT: [[N_VEC:%.*]] = and i64 [[TMP0]], 4294967292, !dbg [[DBG9]]
; CHECK-NEXT: [[N_VEC:%.*]] = and i64 [[TMP0]], 2147483644, !dbg [[DBG9]]
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]], !dbg [[DBG9]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ], !dbg [[DBG9]]
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
; RUN: opt -S -passes=loop-vectorize,instcombine -force-vector-interleave=2 -force-vector-width=4 -force-target-supports-scalable-vectors=true -scalable-vectorization=on < %s | FileCheck %s --check-prefix=CHECKUF2

; CHECKUF1: for.body.preheader:
; CHECKUF1-DAG: %wide.trip.count = zext i32 %N to i64
; CHECKUF1-DAG: %wide.trip.count = zext nneg i32 %N to i64
; CHECKUF1-DAG: %[[VSCALE:.*]] = call i64 @llvm.vscale.i64()
; CHECKUF1-DAG: %[[VSCALEX4:.*]] = shl i64 %[[VSCALE]], 2
; CHECKUF1-DAG: %min.iters.check = icmp ugt i64 %[[VSCALEX4]], %wide.trip.count
Expand Down Expand Up @@ -31,7 +31,7 @@
; There is also the increment for the next iteration, e.g. instead of indexing IDXB, it indexes at IDXB + vscale * 4.

; CHECKUF2: for.body.preheader:
; CHECKUF2-DAG: %wide.trip.count = zext i32 %N to i64
; CHECKUF2-DAG: %wide.trip.count = zext nneg i32 %N to i64
; CHECKUF2-DAG: %[[VSCALE:.*]] = call i64 @llvm.vscale.i64()
; CHECKUF2-DAG: %[[VSCALEX8:.*]] = shl i64 %[[VSCALE]], 3
; CHECKUF2-DAG: %min.iters.check = icmp ugt i64 %[[VSCALEX8]], %wide.trip.count
Expand Down
2 changes: 1 addition & 1 deletion llvm/test/Transforms/PhaseOrdering/X86/simplifycfg-late.ll
Original file line number Diff line number Diff line change
Expand Up @@ -13,7 +13,7 @@ define i32 @f(i32 %c) {
; CHECK-NEXT: [[TMP0:%.*]] = icmp ult i32 [[SWITCH_TABLEIDX]], 7
; CHECK-NEXT: br i1 [[TMP0]], label [[SWITCH_LOOKUP:%.*]], label [[RETURN:%.*]]
; CHECK: switch.lookup:
; CHECK-NEXT: [[TMP1:%.*]] = sext i32 [[SWITCH_TABLEIDX]] to i64
; CHECK-NEXT: [[TMP1:%.*]] = zext nneg i32 [[SWITCH_TABLEIDX]] to i64
; CHECK-NEXT: [[SWITCH_GEP:%.*]] = getelementptr inbounds [7 x i32], ptr @switch.table.f, i64 0, i64 [[TMP1]]
; CHECK-NEXT: [[SWITCH_LOAD:%.*]] = load i32, ptr [[SWITCH_GEP]], align 4
; CHECK-NEXT: br label [[RETURN]]
Expand Down
2 changes: 1 addition & 1 deletion llvm/test/Transforms/PhaseOrdering/X86/vdiv.ll
Original file line number Diff line number Diff line change
Expand Up @@ -19,7 +19,7 @@ define void @vdiv(ptr %x, ptr %y, double %a, i32 %N) #0 {
; CHECK: for.body.preheader:
; CHECK-NEXT: [[X4:%.*]] = ptrtoint ptr [[X:%.*]] to i64
; CHECK-NEXT: [[Y5:%.*]] = ptrtoint ptr [[Y:%.*]] to i64
; CHECK-NEXT: [[WIDE_TRIP_COUNT:%.*]] = zext i32 [[N]] to i64
; CHECK-NEXT: [[WIDE_TRIP_COUNT:%.*]] = zext nneg i32 [[N]] to i64
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i32 [[N]], 16
; CHECK-NEXT: [[TMP0:%.*]] = sub i64 [[X4]], [[Y5]]
; CHECK-NEXT: [[DIFF_CHECK:%.*]] = icmp ult i64 [[TMP0]], 128
Expand Down