; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -mtriple aarch64-linux-gnu -mattr=+sve -passes=loop-vectorize,dce,instcombine -S \
; RUN: -prefer-predicate-over-epilogue=scalar-epilogue < %s | FileCheck %s
; Ensure that we can vectorize loops such as:
; int *ptr = c;
; for (long long i = 0; i < n; i++) {
; int X1 = *ptr++;
; int X2 = *ptr++;
; a[i] = X1 + 1;
; b[i] = X2 + 1;
; }
; with scalable vectors, including unrolling. The test below makes sure
; that we can use gather instructions with the correct offsets, taking
; vscale into account.
define void @widen_ptr_phi_unrolled(ptr noalias nocapture %a, ptr noalias nocapture %b, ptr nocapture readonly %c, i64 %n) #0 {
; CHECK-LABEL: @widen_ptr_phi_unrolled(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP1:%.*]] = shl nuw nsw i64 [[TMP0]], 3
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N:%.*]], [[TMP1]]
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; CHECK: vector.ph:
; CHECK-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[DOTNEG:%.*]] = mul nsw i64 [[TMP2]], -8
; CHECK-NEXT: [[N_VEC:%.*]] = and i64 [[N]], [[DOTNEG]]
; CHECK-NEXT: [[TMP3:%.*]] = shl i64 [[N_VEC]], 3
; CHECK-NEXT: [[IND_END:%.*]] = getelementptr i8, ptr [[C:%.*]], i64 [[TMP3]]
; CHECK-NEXT: [[TMP4:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP5:%.*]] = shl nuw nsw i64 [[TMP4]], 3
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[OFFSET_IDX:%.*]] = shl i64 [[INDEX]], 3
; CHECK-NEXT: [[TMP6:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP7:%.*]] = shl nuw nsw i64 [[TMP6]], 5
; CHECK-NEXT: [[NEXT_GEP:%.*]] = getelementptr i8, ptr [[C]], i64 [[OFFSET_IDX]]
; CHECK-NEXT: [[TMP8:%.*]] = getelementptr i8, ptr [[C]], i64 [[OFFSET_IDX]]
; CHECK-NEXT: [[NEXT_GEP2:%.*]] = getelementptr i8, ptr [[TMP8]], i64 [[TMP7]]
; CHECK-NEXT: [[WIDE_VEC:%.*]] = load <vscale x 8 x i32>, ptr [[NEXT_GEP]], align 4
; CHECK-NEXT: [[STRIDED_VEC:%.*]] = call { <vscale x 4 x i32>, <vscale x 4 x i32> } @llvm.vector.deinterleave2.nxv8i32(<vscale x 8 x i32> [[WIDE_VEC]])
; CHECK-NEXT: [[TMP9:%.*]] = extractvalue { <vscale x 4 x i32>, <vscale x 4 x i32> } [[STRIDED_VEC]], 0
; CHECK-NEXT: [[TMP10:%.*]] = extractvalue { <vscale x 4 x i32>, <vscale x 4 x i32> } [[STRIDED_VEC]], 1
; CHECK-NEXT: [[WIDE_VEC3:%.*]] = load <vscale x 8 x i32>, ptr [[NEXT_GEP2]], align 4
; CHECK-NEXT: [[STRIDED_VEC4:%.*]] = call { <vscale x 4 x i32>, <vscale x 4 x i32> } @llvm.vector.deinterleave2.nxv8i32(<vscale x 8 x i32> [[WIDE_VEC3]])
; CHECK-NEXT: [[TMP11:%.*]] = extractvalue { <vscale x 4 x i32>, <vscale x 4 x i32> } [[STRIDED_VEC4]], 0
; CHECK-NEXT: [[TMP12:%.*]] = extractvalue { <vscale x 4 x i32>, <vscale x 4 x i32> } [[STRIDED_VEC4]], 1
; CHECK-NEXT: [[TMP13:%.*]] = add nsw <vscale x 4 x i32> [[TMP9]], shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 1, i64 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
; CHECK-NEXT: [[TMP14:%.*]] = add nsw <vscale x 4 x i32> [[TMP11]], shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 1, i64 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
; CHECK-NEXT: [[TMP15:%.*]] = getelementptr inbounds i32, ptr [[A:%.*]], i64 [[INDEX]]
; CHECK-NEXT: [[TMP16:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[DOTIDX:%.*]] = shl nuw nsw i64 [[TMP16]], 4
; CHECK-NEXT: [[TMP17:%.*]] = getelementptr inbounds i8, ptr [[TMP15]], i64 [[DOTIDX]]
; CHECK-NEXT: store <vscale x 4 x i32> [[TMP13]], ptr [[TMP15]], align 4
; CHECK-NEXT: store <vscale x 4 x i32> [[TMP14]], ptr [[TMP17]], align 4
; CHECK-NEXT: [[TMP18:%.*]] = add nsw <vscale x 4 x i32> [[TMP10]], shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 1, i64 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
; CHECK-NEXT: [[TMP19:%.*]] = add nsw <vscale x 4 x i32> [[TMP12]], shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 1, i64 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
; CHECK-NEXT: [[TMP20:%.*]] = getelementptr inbounds i32, ptr [[B:%.*]], i64 [[INDEX]]
; CHECK-NEXT: [[TMP21:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[DOTIDX5:%.*]] = shl nuw nsw i64 [[TMP21]], 4
; CHECK-NEXT: [[TMP22:%.*]] = getelementptr inbounds i8, ptr [[TMP20]], i64 [[DOTIDX5]]
; CHECK-NEXT: store <vscale x 4 x i32> [[TMP18]], ptr [[TMP20]], align 4
; CHECK-NEXT: store <vscale x 4 x i32> [[TMP19]], ptr [[TMP22]], align 4
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP5]]
; CHECK-NEXT: [[TMP23:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT: br i1 [[TMP23]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
; CHECK: middle.block:
; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_EXIT:%.*]], label [[SCALAR_PH]]
; CHECK: scalar.ph:
; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi ptr [ [[IND_END]], [[MIDDLE_BLOCK]] ], [ [[C]], [[ENTRY:%.*]] ]
; CHECK-NEXT: [[BC_RESUME_VAL1:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[PTR_014:%.*]] = phi ptr [ [[INCDEC_PTR1:%.*]], [[FOR_BODY]] ], [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ]
; CHECK-NEXT: [[I_013:%.*]] = phi i64 [ [[INC:%.*]], [[FOR_BODY]] ], [ [[BC_RESUME_VAL1]], [[SCALAR_PH]] ]
; CHECK-NEXT: [[INCDEC_PTR:%.*]] = getelementptr inbounds i8, ptr [[PTR_014]], i64 4
; CHECK-NEXT: [[TMP24:%.*]] = load i32, ptr [[PTR_014]], align 4
; CHECK-NEXT: [[INCDEC_PTR1]] = getelementptr inbounds i8, ptr [[PTR_014]], i64 8
; CHECK-NEXT: [[TMP25:%.*]] = load i32, ptr [[INCDEC_PTR]], align 4
; CHECK-NEXT: [[ADD:%.*]] = add nsw i32 [[TMP24]], 1
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[I_013]]
; CHECK-NEXT: store i32 [[ADD]], ptr [[ARRAYIDX]], align 4
; CHECK-NEXT: [[ADD2:%.*]] = add nsw i32 [[TMP25]], 1
; CHECK-NEXT: [[ARRAYIDX3:%.*]] = getelementptr inbounds i32, ptr [[B]], i64 [[I_013]]
; CHECK-NEXT: store i32 [[ADD2]], ptr [[ARRAYIDX3]], align 4
; CHECK-NEXT: [[INC]] = add nuw nsw i64 [[I_013]], 1
; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_EXIT]], label [[FOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]]
; CHECK: for.exit:
; CHECK-NEXT: ret void
;
entry:
br label %for.body
for.body: ; preds = %entry, %for.body
%ptr.014 = phi ptr [ %incdec.ptr1, %for.body ], [ %c, %entry ]
%i.013 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
%incdec.ptr = getelementptr inbounds i32, ptr %ptr.014, i64 1
%0 = load i32, ptr %ptr.014, align 4
%incdec.ptr1 = getelementptr inbounds i32, ptr %ptr.014, i64 2
%1 = load i32, ptr %incdec.ptr, align 4
%add = add nsw i32 %0, 1
%arrayidx = getelementptr inbounds i32, ptr %a, i64 %i.013
store i32 %add, ptr %arrayidx, align 4
%add2 = add nsw i32 %1, 1
%arrayidx3 = getelementptr inbounds i32, ptr %b, i64 %i.013
store i32 %add2, ptr %arrayidx3, align 4
%inc = add nuw nsw i64 %i.013, 1
%exitcond.not = icmp eq i64 %inc, %n
br i1 %exitcond.not, label %for.exit, label %for.body, !llvm.loop !0
for.exit: ; preds = %for.body
ret void
}
; Ensure we can vectorise loops without interleaving, e.g.:
; int *D = dst;
; int *S = src;
; for (long long i = 0; i < n; i++) {
; *D = *S * 2;
; D++;
; S++;
; }
; This takes us down a different codepath to the test above, where
; here we treat the PHIs as being uniform.
define void @widen_2ptrs_phi_unrolled(ptr noalias nocapture %dst, ptr noalias nocapture readonly %src, i64 %n) #0 {
; CHECK-LABEL: @widen_2ptrs_phi_unrolled(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP1:%.*]] = shl nuw nsw i64 [[TMP0]], 3
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[N:%.*]], [[TMP1]]
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; CHECK: vector.ph:
; CHECK-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[DOTNEG:%.*]] = mul nsw i64 [[TMP2]], -8
; CHECK-NEXT: [[N_VEC:%.*]] = and i64 [[N]], [[DOTNEG]]
; CHECK-NEXT: [[TMP3:%.*]] = shl i64 [[N_VEC]], 2
; CHECK-NEXT: [[IND_END:%.*]] = getelementptr i8, ptr [[SRC:%.*]], i64 [[TMP3]]
; CHECK-NEXT: [[TMP4:%.*]] = shl i64 [[N_VEC]], 2
; CHECK-NEXT: [[IND_END2:%.*]] = getelementptr i8, ptr [[DST:%.*]], i64 [[TMP4]]
; CHECK-NEXT: [[TMP5:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP6:%.*]] = shl nuw nsw i64 [[TMP5]], 3
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[OFFSET_IDX:%.*]] = shl i64 [[INDEX]], 2
; CHECK-NEXT: [[NEXT_GEP:%.*]] = getelementptr i8, ptr [[SRC]], i64 [[OFFSET_IDX]]
; CHECK-NEXT: [[OFFSET_IDX4:%.*]] = shl i64 [[INDEX]], 2
; CHECK-NEXT: [[NEXT_GEP5:%.*]] = getelementptr i8, ptr [[DST]], i64 [[OFFSET_IDX4]]
; CHECK-NEXT: [[TMP7:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[DOTIDX:%.*]] = shl nuw nsw i64 [[TMP7]], 4
; CHECK-NEXT: [[TMP8:%.*]] = getelementptr i8, ptr [[NEXT_GEP]], i64 [[DOTIDX]]
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 4 x i32>, ptr [[NEXT_GEP]], align 4
; CHECK-NEXT: [[WIDE_LOAD6:%.*]] = load <vscale x 4 x i32>, ptr [[TMP8]], align 4
; CHECK-NEXT: [[TMP9:%.*]] = shl nsw <vscale x 4 x i32> [[WIDE_LOAD]], shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 1, i64 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
; CHECK-NEXT: [[TMP10:%.*]] = shl nsw <vscale x 4 x i32> [[WIDE_LOAD6]], shufflevector (<vscale x 4 x i32> insertelement (<vscale x 4 x i32> poison, i32 1, i64 0), <vscale x 4 x i32> poison, <vscale x 4 x i32> zeroinitializer)
; CHECK-NEXT: [[TMP11:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[DOTIDX7:%.*]] = shl nuw nsw i64 [[TMP11]], 4
; CHECK-NEXT: [[TMP12:%.*]] = getelementptr i8, ptr [[NEXT_GEP5]], i64 [[DOTIDX7]]
; CHECK-NEXT: store <vscale x 4 x i32> [[TMP9]], ptr [[NEXT_GEP5]], align 4
; CHECK-NEXT: store <vscale x 4 x i32> [[TMP10]], ptr [[TMP12]], align 4
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP6]]
; CHECK-NEXT: [[TMP13:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT: br i1 [[TMP13]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]]
; CHECK: middle.block:
; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[N]], [[N_VEC]]
; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_COND_CLEANUP:%.*]], label [[SCALAR_PH]]
; CHECK: scalar.ph:
; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
; CHECK-NEXT: [[BC_RESUME_VAL1:%.*]] = phi ptr [ [[IND_END]], [[MIDDLE_BLOCK]] ], [ [[SRC]], [[ENTRY]] ]
; CHECK-NEXT: [[BC_RESUME_VAL3:%.*]] = phi ptr [ [[IND_END2]], [[MIDDLE_BLOCK]] ], [ [[DST]], [[ENTRY]] ]
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[I_011:%.*]] = phi i64 [ [[INC:%.*]], [[FOR_BODY]] ], [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ]
; CHECK-NEXT: [[S_010:%.*]] = phi ptr [ [[INCDEC_PTR1:%.*]], [[FOR_BODY]] ], [ [[BC_RESUME_VAL1]], [[SCALAR_PH]] ]
; CHECK-NEXT: [[D_09:%.*]] = phi ptr [ [[INCDEC_PTR:%.*]], [[FOR_BODY]] ], [ [[BC_RESUME_VAL3]], [[SCALAR_PH]] ]
; CHECK-NEXT: [[TMP14:%.*]] = load i32, ptr [[S_010]], align 4
; CHECK-NEXT: [[MUL:%.*]] = shl nsw i32 [[TMP14]], 1
; CHECK-NEXT: store i32 [[MUL]], ptr [[D_09]], align 4
; CHECK-NEXT: [[INCDEC_PTR]] = getelementptr inbounds i8, ptr [[D_09]], i64 4
; CHECK-NEXT: [[INCDEC_PTR1]] = getelementptr inbounds i8, ptr [[S_010]], i64 4
; CHECK-NEXT: [[INC]] = add nuw nsw i64 [[I_011]], 1
; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[N]]
; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_COND_CLEANUP]], label [[FOR_BODY]], !llvm.loop [[LOOP6:![0-9]+]]
; CHECK: for.cond.cleanup:
; CHECK-NEXT: ret void
;
entry:
br label %for.body
for.body: ; preds = %entry, %for.body
%i.011 = phi i64 [ %inc, %for.body ], [ 0, %entry ]
%S.010 = phi ptr [ %incdec.ptr1, %for.body ], [ %src, %entry ]
%D.09 = phi ptr [ %incdec.ptr, %for.body ], [ %dst, %entry ]
%0 = load i32, ptr %S.010, align 4
%mul = shl nsw i32 %0, 1
store i32 %mul, ptr %D.09, align 4
%incdec.ptr = getelementptr inbounds i32, ptr %D.09, i64 1
%incdec.ptr1 = getelementptr inbounds i32, ptr %S.010, i64 1
%inc = add nuw nsw i64 %i.011, 1
%exitcond.not = icmp eq i64 %inc, %n
br i1 %exitcond.not, label %for.cond.cleanup, label %for.body, !llvm.loop !0
for.cond.cleanup: ; preds = %for.body
ret void
}
;
; Check multiple pointer induction variables where only one is recognized as
; uniform and remains uniform after vectorization. The other pointer induction
; variable is not recognized as uniform and is not uniform after vectorization
; because it is stored to memory.
;
define i32 @pointer_iv_mixed(ptr noalias %a, ptr noalias %b, i64 %n) #0 {
; CHECK-LABEL: @pointer_iv_mixed(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[SMAX:%.*]] = call i64 @llvm.smax.i64(i64 [[N:%.*]], i64 1)
; CHECK-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP1:%.*]] = shl nuw nsw i64 [[TMP0]], 1
; CHECK-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[SMAX]], [[TMP1]]
; CHECK-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; CHECK: vector.ph:
; CHECK-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[DOTNEG:%.*]] = mul nsw i64 [[TMP2]], -2
; CHECK-NEXT: [[N_VEC:%.*]] = and i64 [[SMAX]], [[DOTNEG]]
; CHECK-NEXT: [[TMP3:%.*]] = shl i64 [[N_VEC]], 2
; CHECK-NEXT: [[IND_END:%.*]] = getelementptr i8, ptr [[A:%.*]], i64 [[TMP3]]
; CHECK-NEXT: [[TMP4:%.*]] = shl i64 [[N_VEC]], 3
; CHECK-NEXT: [[IND_END2:%.*]] = getelementptr i8, ptr [[B:%.*]], i64 [[TMP4]]
; CHECK-NEXT: [[TMP5:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP6:%.*]] = shl nuw nsw i64 [[TMP5]], 1
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[POINTER_PHI:%.*]] = phi ptr [ [[A]], [[VECTOR_PH]] ], [ [[PTR_IND:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[VEC_PHI:%.*]] = phi <vscale x 2 x i32> [ zeroinitializer, [[VECTOR_PH]] ], [ [[TMP12:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[TMP7:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP8:%.*]] = shl nuw nsw i64 [[TMP7]], 3
; CHECK-NEXT: [[TMP9:%.*]] = call <vscale x 2 x i64> @llvm.stepvector.nxv2i64()
; CHECK-NEXT: [[TMP10:%.*]] = shl <vscale x 2 x i64> [[TMP9]], shufflevector (<vscale x 2 x i64> insertelement (<vscale x 2 x i64> poison, i64 2, i64 0), <vscale x 2 x i64> poison, <vscale x 2 x i32> zeroinitializer)
; CHECK-NEXT: [[VECTOR_GEP:%.*]] = getelementptr i8, ptr [[POINTER_PHI]], <vscale x 2 x i64> [[TMP10]]
; CHECK-NEXT: [[OFFSET_IDX:%.*]] = shl i64 [[INDEX]], 3
; CHECK-NEXT: [[NEXT_GEP:%.*]] = getelementptr i8, ptr [[B]], i64 [[OFFSET_IDX]]
; CHECK-NEXT: [[TMP11:%.*]] = extractelement <vscale x 2 x ptr> [[VECTOR_GEP]], i64 0
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <vscale x 2 x i32>, ptr [[TMP11]], align 8
; CHECK-NEXT: [[TMP12]] = add <vscale x 2 x i32> [[WIDE_LOAD]], [[VEC_PHI]]
; CHECK-NEXT: store <vscale x 2 x ptr> [[VECTOR_GEP]], ptr [[NEXT_GEP]], align 8
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP6]]
; CHECK-NEXT: [[PTR_IND]] = getelementptr i8, ptr [[POINTER_PHI]], i64 [[TMP8]]
; CHECK-NEXT: [[TMP13:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
; CHECK-NEXT: br i1 [[TMP13]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP7:![0-9]+]]
; CHECK: middle.block:
; CHECK-NEXT: [[TMP14:%.*]] = call i32 @llvm.vector.reduce.add.nxv2i32(<vscale x 2 x i32> [[TMP12]])
; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[SMAX]], [[N_VEC]]
; CHECK-NEXT: br i1 [[CMP_N]], label [[FOR_END:%.*]], label [[SCALAR_PH]]
; CHECK: scalar.ph:
; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ]
; CHECK-NEXT: [[BC_RESUME_VAL1:%.*]] = phi ptr [ [[IND_END]], [[MIDDLE_BLOCK]] ], [ [[A]], [[ENTRY]] ]
; CHECK-NEXT: [[BC_RESUME_VAL3:%.*]] = phi ptr [ [[IND_END2]], [[MIDDLE_BLOCK]] ], [ [[B]], [[ENTRY]] ]
; CHECK-NEXT: [[BC_MERGE_RDX:%.*]] = phi i32 [ [[TMP14]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ]
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[I:%.*]] = phi i64 [ [[I_NEXT:%.*]], [[FOR_BODY]] ], [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ]
; CHECK-NEXT: [[P:%.*]] = phi ptr [ [[VAR3:%.*]], [[FOR_BODY]] ], [ [[BC_RESUME_VAL1]], [[SCALAR_PH]] ]
; CHECK-NEXT: [[Q:%.*]] = phi ptr [ [[VAR4:%.*]], [[FOR_BODY]] ], [ [[BC_RESUME_VAL3]], [[SCALAR_PH]] ]
; CHECK-NEXT: [[VAR0:%.*]] = phi i32 [ [[VAR2:%.*]], [[FOR_BODY]] ], [ [[BC_MERGE_RDX]], [[SCALAR_PH]] ]
; CHECK-NEXT: [[VAR1:%.*]] = load i32, ptr [[P]], align 8
; CHECK-NEXT: [[VAR2]] = add i32 [[VAR1]], [[VAR0]]
; CHECK-NEXT: store ptr [[P]], ptr [[Q]], align 8
; CHECK-NEXT: [[VAR3]] = getelementptr inbounds i8, ptr [[P]], i64 4
; CHECK-NEXT: [[VAR4]] = getelementptr inbounds i8, ptr [[Q]], i64 8
; CHECK-NEXT: [[I_NEXT]] = add nuw nsw i64 [[I]], 1
; CHECK-NEXT: [[COND:%.*]] = icmp slt i64 [[I_NEXT]], [[N]]
; CHECK-NEXT: br i1 [[COND]], label [[FOR_BODY]], label [[FOR_END]], !llvm.loop [[LOOP8:![0-9]+]]
; CHECK: for.end:
; CHECK-NEXT: [[VAR5:%.*]] = phi i32 [ [[VAR2]], [[FOR_BODY]] ], [ [[TMP14]], [[MIDDLE_BLOCK]] ]
; CHECK-NEXT: ret i32 [[VAR5]]
;
entry:
br label %for.body
for.body:
%i = phi i64 [ %i.next, %for.body ], [ 0, %entry ]
%p = phi ptr [ %var3, %for.body ], [ %a, %entry ]
%q = phi ptr [ %var4, %for.body ], [ %b, %entry ]
%var0 = phi i32 [ %var2, %for.body ], [ 0, %entry ]
%var1 = load i32, ptr %p, align 8
%var2 = add i32 %var1, %var0
store ptr %p, ptr %q, align 8
%var3 = getelementptr inbounds i32, ptr %p, i32 1
%var4 = getelementptr inbounds ptr, ptr %q, i32 1
%i.next = add nuw nsw i64 %i, 1
%cond = icmp slt i64 %i.next, %n
br i1 %cond, label %for.body, label %for.end, !llvm.loop !6
for.end:
%var5 = phi i32 [ %var2, %for.body ]
ret i32 %var5
}
define void @phi_used_in_vector_compare_and_scalar_indvar_update_and_store(ptr %ptr) #0 {
; CHECK-LABEL: @phi_used_in_vector_compare_and_scalar_indvar_update_and_store(
; CHECK-NEXT: entry:
; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]]
; CHECK: vector.ph:
; CHECK-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP1:%.*]] = shl nuw nsw i64 [[TMP0]], 1
; CHECK-NEXT: br label [[VECTOR_BODY:%.*]]
; CHECK: vector.body:
; CHECK-NEXT: [[POINTER_PHI:%.*]] = phi ptr [ [[PTR:%.*]], [[VECTOR_PH]] ], [ [[PTR_IND:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
; CHECK-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
; CHECK-NEXT: [[TMP3:%.*]] = shl nuw nsw i64 [[TMP2]], 2
; CHECK-NEXT: [[TMP4:%.*]] = call <vscale x 2 x i64> @llvm.stepvector.nxv2i64()
; CHECK-NEXT: [[TMP5:%.*]] = shl <vscale x 2 x i64> [[TMP4]], shufflevector (<vscale x 2 x i64> insertelement (<vscale x 2 x i64> poison, i64 1, i64 0), <vscale x 2 x i64> poison, <vscale x 2 x i32> zeroinitializer)
; CHECK-NEXT: [[VECTOR_GEP:%.*]] = getelementptr i8, ptr [[POINTER_PHI]], <vscale x 2 x i64> [[TMP5]]
; CHECK-NEXT: [[TMP6:%.*]] = icmp ne <vscale x 2 x ptr> [[VECTOR_GEP]], zeroinitializer
; CHECK-NEXT: [[TMP7:%.*]] = extractelement <vscale x 2 x ptr> [[VECTOR_GEP]], i64 0
; CHECK-NEXT: call void @llvm.masked.store.nxv2i16.p0(<vscale x 2 x i16> zeroinitializer, ptr [[TMP7]], i32 2, <vscale x 2 x i1> [[TMP6]])
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP1]]
; CHECK-NEXT: [[PTR_IND]] = getelementptr i8, ptr [[POINTER_PHI]], i64 [[TMP3]]
; CHECK-NEXT: [[TMP8:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
; CHECK-NEXT: br i1 [[TMP8]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP9:![0-9]+]]
; CHECK: middle.block:
; CHECK-NEXT: br i1 true, label [[FOR_END:%.*]], label [[SCALAR_PH]]
; CHECK: scalar.ph:
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.body:
; CHECK-NEXT: br i1 poison, label [[IF_END_SINK_SPLIT:%.*]], label [[IF_END:%.*]]
; CHECK: if.end.sink.split:
; CHECK-NEXT: br label [[IF_END]]
; CHECK: if.end:
; CHECK-NEXT: br i1 poison, label [[FOR_BODY]], label [[FOR_END]], !llvm.loop [[LOOP10:![0-9]+]]
; CHECK: for.end:
; CHECK-NEXT: ret void
;
entry:
br label %for.body
for.body: ; preds = %if.end, %entry
%iv = phi i64 [ %inc, %if.end ], [ 0, %entry ]
%iv.ptr = phi ptr [ %incdec.iv.ptr, %if.end ], [ %ptr, %entry ]
%cmp.i = icmp ne ptr %iv.ptr, null
br i1 %cmp.i, label %if.end.sink.split, label %if.end
if.end.sink.split: ; preds = %for.body
store i16 0, ptr %iv.ptr, align 2
br label %if.end
if.end: ; preds = %if.end.sink.split, %for.body
%incdec.iv.ptr = getelementptr inbounds i16, ptr %iv.ptr, i64 1
%inc = add nuw nsw i64 %iv, 1
%exitcond.not = icmp ult i64 %inc, 1024
br i1 %exitcond.not, label %for.body, label %for.end, !llvm.loop !6
for.end: ; preds = %if.end, %for.end
%iv.ptr.1.lcssa = phi ptr [ %incdec.iv.ptr, %if.end ]
ret void
}
attributes #0 = { vscale_range(1, 16) }
!0 = distinct !{!0, !1, !2, !3, !4, !5}
!1 = !{!"llvm.loop.mustprogress"}
!2 = !{!"llvm.loop.vectorize.width", i32 4}
!3 = !{!"llvm.loop.vectorize.scalable.enable", i1 true}
!4 = !{!"llvm.loop.vectorize.enable", i1 true}
!5 = !{!"llvm.loop.interleave.count", i32 2}
!6 = distinct !{!6, !1, !7, !3, !4, !8}
!7 = !{!"llvm.loop.vectorize.width", i32 2}
!8 = !{!"llvm.loop.interleave.count", i32 1}
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