; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt -passes=loop-vectorize \ ; RUN: -prefer-predicate-over-epilogue=predicate-else-scalar-epilogue \ ; RUN: -mtriple=riscv64 -mattr=+v -S < %s | FileCheck %s --check-prefix=IF-EVL ; RUN: opt -passes=loop-vectorize \ ; RUN: -prefer-predicate-over-epilogue=scalar-epilogue \ ; RUN: -mtriple=riscv64 -mattr=+v -S < %s | FileCheck %s --check-prefix=NO-VP define void @reverse_load_store(i64 %startval, ptr noalias %ptr, ptr noalias %ptr2) { ; IF-EVL-LABEL: @reverse_load_store( ; IF-EVL-NEXT: entry: ; IF-EVL-NEXT: br label [[VECTOR_PH:%.*]] ; IF-EVL: vector.ph: ; IF-EVL-NEXT: br label [[VECTOR_BODY:%.*]] ; IF-EVL: vector.body: ; IF-EVL-NEXT: [[EVL_BASED_IV:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_EVL_NEXT:%.*]], [[VECTOR_BODY]] ] ; IF-EVL-NEXT: [[AVL:%.*]] = phi i64 [ 1024, [[VECTOR_PH]] ], [ [[AVL_NEXT:%.*]], [[VECTOR_BODY]] ] ; IF-EVL-NEXT: [[TMP5:%.*]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[AVL]], i32 4, i1 true) ; IF-EVL-NEXT: [[OFFSET_IDX:%.*]] = sub i64 [[STARTVAL:%.*]], [[EVL_BASED_IV]] ; IF-EVL-NEXT: [[TMP7:%.*]] = add i64 [[OFFSET_IDX]], -1 ; IF-EVL-NEXT: [[TMP8:%.*]] = getelementptr inbounds i32, ptr [[PTR:%.*]], i64 [[TMP7]] ; IF-EVL-NEXT: [[TMP18:%.*]] = zext i32 [[TMP5]] to i64 ; IF-EVL-NEXT: [[TMP9:%.*]] = mul i64 0, [[TMP18]] ; IF-EVL-NEXT: [[TMP11:%.*]] = sub i64 [[TMP18]], 1 ; IF-EVL-NEXT: [[TMP10:%.*]] = mul i64 -1, [[TMP11]] ; IF-EVL-NEXT: [[TMP16:%.*]] = getelementptr i32, ptr [[TMP8]], i64 [[TMP9]] ; IF-EVL-NEXT: [[TMP12:%.*]] = getelementptr i32, ptr [[TMP16]], i64 [[TMP10]] ; IF-EVL-NEXT: [[VP_OP_LOAD:%.*]] = call @llvm.vp.load.nxv4i32.p0(ptr align 4 [[TMP12]], splat (i1 true), i32 [[TMP5]]) ; IF-EVL-NEXT: [[VP_REVERSE:%.*]] = call @llvm.experimental.vp.reverse.nxv4i32( [[VP_OP_LOAD]], splat (i1 true), i32 [[TMP5]]) ; IF-EVL-NEXT: [[TMP13:%.*]] = getelementptr inbounds i32, ptr [[PTR2:%.*]], i64 [[TMP7]] ; IF-EVL-NEXT: [[TMP19:%.*]] = zext i32 [[TMP5]] to i64 ; IF-EVL-NEXT: [[TMP14:%.*]] = mul i64 0, [[TMP19]] ; IF-EVL-NEXT: [[TMP23:%.*]] = sub i64 [[TMP19]], 1 ; IF-EVL-NEXT: [[TMP15:%.*]] = mul i64 -1, [[TMP23]] ; IF-EVL-NEXT: [[TMP22:%.*]] = getelementptr i32, ptr [[TMP13]], i64 [[TMP14]] ; IF-EVL-NEXT: [[TMP17:%.*]] = getelementptr i32, ptr [[TMP22]], i64 [[TMP15]] ; IF-EVL-NEXT: [[VP_REVERSE3:%.*]] = call @llvm.experimental.vp.reverse.nxv4i32( [[VP_REVERSE]], splat (i1 true), i32 [[TMP5]]) ; IF-EVL-NEXT: call void @llvm.vp.store.nxv4i32.p0( [[VP_REVERSE3]], ptr align 4 [[TMP17]], splat (i1 true), i32 [[TMP5]]) ; IF-EVL-NEXT: [[TMP20:%.*]] = zext i32 [[TMP5]] to i64 ; IF-EVL-NEXT: [[INDEX_EVL_NEXT]] = add nuw i64 [[TMP20]], [[EVL_BASED_IV]] ; IF-EVL-NEXT: [[AVL_NEXT]] = sub nuw i64 [[AVL]], [[TMP20]] ; IF-EVL-NEXT: [[TMP24:%.*]] = icmp eq i64 [[AVL_NEXT]], 0 ; IF-EVL-NEXT: br i1 [[TMP24]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] ; IF-EVL: middle.block: ; IF-EVL-NEXT: br label [[FOR_BODY:%.*]] ; IF-EVL: loopend: ; IF-EVL-NEXT: ret void ; ; NO-VP-LABEL: @reverse_load_store( ; NO-VP-NEXT: entry: ; NO-VP-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64() ; NO-VP-NEXT: [[TMP1:%.*]] = shl nuw i64 [[TMP0]], 2 ; NO-VP-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 1024, [[TMP1]] ; NO-VP-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] ; NO-VP: vector.ph: ; NO-VP-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64() ; NO-VP-NEXT: [[TMP3:%.*]] = mul nuw i64 [[TMP2]], 4 ; NO-VP-NEXT: [[N_MOD_VF:%.*]] = urem i64 1024, [[TMP3]] ; NO-VP-NEXT: [[N_VEC:%.*]] = sub i64 1024, [[N_MOD_VF]] ; NO-VP-NEXT: [[TMP6:%.*]] = sub i64 [[STARTVAL:%.*]], [[N_VEC]] ; NO-VP-NEXT: [[TMP7:%.*]] = trunc i64 [[N_VEC]] to i32 ; NO-VP-NEXT: br label [[FOR_BODY:%.*]] ; NO-VP: vector.body: ; NO-VP-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[FOR_BODY]] ] ; NO-VP-NEXT: [[OFFSET_IDX:%.*]] = sub i64 [[STARTVAL]], [[INDEX]] ; NO-VP-NEXT: [[TMP8:%.*]] = add i64 [[OFFSET_IDX]], -1 ; NO-VP-NEXT: [[TMP9:%.*]] = getelementptr inbounds i32, ptr [[PTR:%.*]], i64 [[TMP8]] ; NO-VP-NEXT: [[TMP10:%.*]] = mul i64 0, [[TMP3]] ; NO-VP-NEXT: [[TMP11:%.*]] = sub i64 [[TMP3]], 1 ; NO-VP-NEXT: [[TMP12:%.*]] = mul i64 -1, [[TMP11]] ; NO-VP-NEXT: [[TMP13:%.*]] = getelementptr inbounds i32, ptr [[TMP9]], i64 [[TMP10]] ; NO-VP-NEXT: [[TMP14:%.*]] = getelementptr inbounds i32, ptr [[TMP13]], i64 [[TMP12]] ; NO-VP-NEXT: [[WIDE_LOAD:%.*]] = load , ptr [[TMP14]], align 4 ; NO-VP-NEXT: [[REVERSE:%.*]] = call @llvm.vector.reverse.nxv4i32( [[WIDE_LOAD]]) ; NO-VP-NEXT: [[TMP15:%.*]] = getelementptr inbounds i32, ptr [[PTR2:%.*]], i64 [[TMP8]] ; NO-VP-NEXT: [[TMP16:%.*]] = mul i64 0, [[TMP3]] ; NO-VP-NEXT: [[TMP17:%.*]] = sub i64 [[TMP3]], 1 ; NO-VP-NEXT: [[TMP18:%.*]] = mul i64 -1, [[TMP17]] ; NO-VP-NEXT: [[TMP19:%.*]] = getelementptr inbounds i32, ptr [[TMP15]], i64 [[TMP16]] ; NO-VP-NEXT: [[TMP20:%.*]] = getelementptr inbounds i32, ptr [[TMP19]], i64 [[TMP18]] ; NO-VP-NEXT: [[REVERSE1:%.*]] = call @llvm.vector.reverse.nxv4i32( [[REVERSE]]) ; NO-VP-NEXT: store [[REVERSE1]], ptr [[TMP20]], align 4 ; NO-VP-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP3]] ; NO-VP-NEXT: [[TMP21:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] ; NO-VP-NEXT: br i1 [[TMP21]], label [[MIDDLE_BLOCK:%.*]], label [[FOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] ; NO-VP: middle.block: ; NO-VP-NEXT: [[CMP_N:%.*]] = icmp eq i64 1024, [[N_VEC]] ; NO-VP-NEXT: br i1 [[CMP_N]], label [[LOOPEND:%.*]], label [[SCALAR_PH]] ; NO-VP: scalar.ph: ; NO-VP-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[TMP6]], [[MIDDLE_BLOCK]] ], [ [[STARTVAL]], [[ENTRY:%.*]] ] ; NO-VP-NEXT: [[BC_RESUME_VAL2:%.*]] = phi i32 [ [[TMP7]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY]] ] ; NO-VP-NEXT: br label [[FOR_BODY1:%.*]] ; NO-VP: for.body: ; NO-VP-NEXT: [[ADD_PHI:%.*]] = phi i64 [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ], [ [[ADD:%.*]], [[FOR_BODY1]] ] ; NO-VP-NEXT: [[I:%.*]] = phi i32 [ [[BC_RESUME_VAL2]], [[SCALAR_PH]] ], [ [[INC:%.*]], [[FOR_BODY1]] ] ; NO-VP-NEXT: [[ADD]] = add i64 [[ADD_PHI]], -1 ; NO-VP-NEXT: [[GEPL:%.*]] = getelementptr inbounds i32, ptr [[PTR]], i64 [[ADD]] ; NO-VP-NEXT: [[TMP:%.*]] = load i32, ptr [[GEPL]], align 4 ; NO-VP-NEXT: [[GEPS:%.*]] = getelementptr inbounds i32, ptr [[PTR2]], i64 [[ADD]] ; NO-VP-NEXT: store i32 [[TMP]], ptr [[GEPS]], align 4 ; NO-VP-NEXT: [[INC]] = add i32 [[I]], 1 ; NO-VP-NEXT: [[EXITCOND:%.*]] = icmp ne i32 [[INC]], 1024 ; NO-VP-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY1]], label [[LOOPEND]], !llvm.loop [[LOOP3:![0-9]+]] ; NO-VP: loopend: ; NO-VP-NEXT: ret void ; entry: br label %for.body for.body: %add.phi = phi i64 [ %startval, %entry ], [ %add, %for.body ] %i = phi i32 [ 0, %entry ], [ %inc, %for.body ] %add = add i64 %add.phi, -1 %gepl = getelementptr inbounds i32, ptr %ptr, i64 %add %tmp = load i32, ptr %gepl, align 4 %geps = getelementptr inbounds i32, ptr %ptr2, i64 %add store i32 %tmp, ptr %geps, align 4 %inc = add i32 %i, 1 %exitcond = icmp ne i32 %inc, 1024 br i1 %exitcond, label %for.body, label %loopend loopend: ret void } define void @reverse_load_store_masked(i64 %startval, ptr noalias %ptr, ptr noalias %ptr1, ptr noalias %ptr2) { ; IF-EVL-LABEL: @reverse_load_store_masked( ; IF-EVL-NEXT: entry: ; IF-EVL-NEXT: br label [[VECTOR_PH:%.*]] ; IF-EVL: vector.ph: ; IF-EVL-NEXT: br label [[VECTOR_BODY:%.*]] ; IF-EVL: vector.body: ; IF-EVL-NEXT: [[EVL_BASED_IV:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_EVL_NEXT:%.*]], [[VECTOR_BODY]] ] ; IF-EVL-NEXT: [[AVL:%.*]] = phi i64 [ 1024, [[VECTOR_PH]] ], [ [[AVL_NEXT:%.*]], [[VECTOR_BODY]] ] ; IF-EVL-NEXT: [[TMP5:%.*]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[AVL]], i32 4, i1 true) ; IF-EVL-NEXT: [[OFFSET_IDX:%.*]] = sub i64 [[STARTVAL:%.*]], [[EVL_BASED_IV]] ; IF-EVL-NEXT: [[OFFSET_IDX3:%.*]] = trunc i64 [[EVL_BASED_IV]] to i32 ; IF-EVL-NEXT: [[TMP11:%.*]] = add i64 [[OFFSET_IDX]], -1 ; IF-EVL-NEXT: [[TMP12:%.*]] = getelementptr inbounds i32, ptr [[PTR:%.*]], i32 [[OFFSET_IDX3]] ; IF-EVL-NEXT: [[VP_OP_LOAD:%.*]] = call @llvm.vp.load.nxv4i32.p0(ptr align 4 [[TMP12]], splat (i1 true), i32 [[TMP5]]) ; IF-EVL-NEXT: [[TMP14:%.*]] = icmp slt [[VP_OP_LOAD]], splat (i32 100) ; IF-EVL-NEXT: [[TMP16:%.*]] = getelementptr i32, ptr [[PTR1:%.*]], i64 [[TMP11]] ; IF-EVL-NEXT: [[TMP26:%.*]] = zext i32 [[TMP5]] to i64 ; IF-EVL-NEXT: [[TMP17:%.*]] = mul i64 0, [[TMP26]] ; IF-EVL-NEXT: [[TMP15:%.*]] = sub i64 [[TMP26]], 1 ; IF-EVL-NEXT: [[TMP18:%.*]] = mul i64 -1, [[TMP15]] ; IF-EVL-NEXT: [[TMP19:%.*]] = getelementptr i32, ptr [[TMP16]], i64 [[TMP17]] ; IF-EVL-NEXT: [[TMP20:%.*]] = getelementptr i32, ptr [[TMP19]], i64 [[TMP18]] ; IF-EVL-NEXT: [[VP_REVERSE_MASK:%.*]] = call @llvm.experimental.vp.reverse.nxv4i1( [[TMP14]], splat (i1 true), i32 [[TMP5]]) ; IF-EVL-NEXT: [[VP_OP_LOAD4:%.*]] = call @llvm.vp.load.nxv4i32.p0(ptr align 4 [[TMP20]], [[VP_REVERSE_MASK]], i32 [[TMP5]]) ; IF-EVL-NEXT: [[VP_REVERSE:%.*]] = call @llvm.experimental.vp.reverse.nxv4i32( [[VP_OP_LOAD4]], splat (i1 true), i32 [[TMP5]]) ; IF-EVL-NEXT: [[TMP21:%.*]] = getelementptr i32, ptr [[PTR2:%.*]], i64 [[TMP11]] ; IF-EVL-NEXT: [[TMP27:%.*]] = zext i32 [[TMP5]] to i64 ; IF-EVL-NEXT: [[TMP22:%.*]] = mul i64 0, [[TMP27]] ; IF-EVL-NEXT: [[TMP30:%.*]] = sub i64 [[TMP27]], 1 ; IF-EVL-NEXT: [[TMP23:%.*]] = mul i64 -1, [[TMP30]] ; IF-EVL-NEXT: [[TMP24:%.*]] = getelementptr i32, ptr [[TMP21]], i64 [[TMP22]] ; IF-EVL-NEXT: [[TMP25:%.*]] = getelementptr i32, ptr [[TMP24]], i64 [[TMP23]] ; IF-EVL-NEXT: [[VP_REVERSE5:%.*]] = call @llvm.experimental.vp.reverse.nxv4i32( [[VP_REVERSE]], splat (i1 true), i32 [[TMP5]]) ; IF-EVL-NEXT: [[VP_REVERSE_MASK6:%.*]] = call @llvm.experimental.vp.reverse.nxv4i1( [[TMP14]], splat (i1 true), i32 [[TMP5]]) ; IF-EVL-NEXT: call void @llvm.vp.store.nxv4i32.p0( [[VP_REVERSE5]], ptr align 4 [[TMP25]], [[VP_REVERSE_MASK6]], i32 [[TMP5]]) ; IF-EVL-NEXT: [[TMP28:%.*]] = zext i32 [[TMP5]] to i64 ; IF-EVL-NEXT: [[INDEX_EVL_NEXT]] = add nuw i64 [[TMP28]], [[EVL_BASED_IV]] ; IF-EVL-NEXT: [[AVL_NEXT]] = sub nuw i64 [[AVL]], [[TMP28]] ; IF-EVL-NEXT: [[TMP29:%.*]] = icmp eq i64 [[AVL_NEXT]], 0 ; IF-EVL-NEXT: br i1 [[TMP29]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]] ; IF-EVL: middle.block: ; IF-EVL-NEXT: br label [[FOR_INC:%.*]] ; IF-EVL: loopend: ; IF-EVL-NEXT: ret void ; ; NO-VP-LABEL: @reverse_load_store_masked( ; NO-VP-NEXT: entry: ; NO-VP-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64() ; NO-VP-NEXT: [[TMP1:%.*]] = shl nuw i64 [[TMP0]], 2 ; NO-VP-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 1024, [[TMP1]] ; NO-VP-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[ENTRY:%.*]], label [[VECTOR_PH:%.*]] ; NO-VP: vector.ph: ; NO-VP-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64() ; NO-VP-NEXT: [[TMP3:%.*]] = mul nuw i64 [[TMP2]], 4 ; NO-VP-NEXT: [[N_MOD_VF:%.*]] = urem i64 1024, [[TMP3]] ; NO-VP-NEXT: [[N_VEC:%.*]] = sub i64 1024, [[N_MOD_VF]] ; NO-VP-NEXT: [[TMP6:%.*]] = sub i64 [[STARTVAL1:%.*]], [[N_VEC]] ; NO-VP-NEXT: [[TMP7:%.*]] = trunc i64 [[N_VEC]] to i32 ; NO-VP-NEXT: br label [[FOR_BODY:%.*]] ; NO-VP: vector.body: ; NO-VP-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[FOR_BODY]] ] ; NO-VP-NEXT: [[OFFSET_IDX:%.*]] = sub i64 [[STARTVAL1]], [[INDEX]] ; NO-VP-NEXT: [[OFFSET_IDX1:%.*]] = trunc i64 [[INDEX]] to i32 ; NO-VP-NEXT: [[TMP8:%.*]] = add i64 [[OFFSET_IDX]], -1 ; NO-VP-NEXT: [[TMP9:%.*]] = getelementptr inbounds i32, ptr [[PTR:%.*]], i32 [[OFFSET_IDX1]] ; NO-VP-NEXT: [[WIDE_LOAD:%.*]] = load , ptr [[TMP9]], align 4 ; NO-VP-NEXT: [[TMP10:%.*]] = icmp slt [[WIDE_LOAD]], splat (i32 100) ; NO-VP-NEXT: [[TMP11:%.*]] = getelementptr i32, ptr [[PTR1:%.*]], i64 [[TMP8]] ; NO-VP-NEXT: [[TMP12:%.*]] = mul i64 0, [[TMP3]] ; NO-VP-NEXT: [[TMP13:%.*]] = sub i64 [[TMP3]], 1 ; NO-VP-NEXT: [[TMP14:%.*]] = mul i64 -1, [[TMP13]] ; NO-VP-NEXT: [[TMP15:%.*]] = getelementptr i32, ptr [[TMP11]], i64 [[TMP12]] ; NO-VP-NEXT: [[TMP16:%.*]] = getelementptr i32, ptr [[TMP15]], i64 [[TMP14]] ; NO-VP-NEXT: [[REVERSE:%.*]] = call @llvm.vector.reverse.nxv4i1( [[TMP10]]) ; NO-VP-NEXT: [[WIDE_MASKED_LOAD:%.*]] = call @llvm.masked.load.nxv4i32.p0(ptr align 4 [[TMP16]], [[REVERSE]], poison) ; NO-VP-NEXT: [[REVERSE2:%.*]] = call @llvm.vector.reverse.nxv4i32( [[WIDE_MASKED_LOAD]]) ; NO-VP-NEXT: [[TMP17:%.*]] = getelementptr i32, ptr [[PTR2:%.*]], i64 [[TMP8]] ; NO-VP-NEXT: [[TMP18:%.*]] = mul i64 0, [[TMP3]] ; NO-VP-NEXT: [[TMP19:%.*]] = sub i64 [[TMP3]], 1 ; NO-VP-NEXT: [[TMP20:%.*]] = mul i64 -1, [[TMP19]] ; NO-VP-NEXT: [[TMP21:%.*]] = getelementptr i32, ptr [[TMP17]], i64 [[TMP18]] ; NO-VP-NEXT: [[TMP22:%.*]] = getelementptr i32, ptr [[TMP21]], i64 [[TMP20]] ; NO-VP-NEXT: [[REVERSE3:%.*]] = call @llvm.vector.reverse.nxv4i1( [[TMP10]]) ; NO-VP-NEXT: [[REVERSE4:%.*]] = call @llvm.vector.reverse.nxv4i32( [[REVERSE2]]) ; NO-VP-NEXT: call void @llvm.masked.store.nxv4i32.p0( [[REVERSE4]], ptr align 4 [[TMP22]], [[REVERSE3]]) ; NO-VP-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], [[TMP3]] ; NO-VP-NEXT: [[TMP23:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] ; NO-VP-NEXT: br i1 [[TMP23]], label [[MIDDLE_BLOCK:%.*]], label [[FOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]] ; NO-VP: middle.block: ; NO-VP-NEXT: [[CMP_N:%.*]] = icmp eq i64 1024, [[N_VEC]] ; NO-VP-NEXT: br i1 [[CMP_N]], label [[LOOPEND:%.*]], label [[ENTRY]] ; NO-VP: scalar.ph: ; NO-VP-NEXT: [[STARTVAL:%.*]] = phi i64 [ [[TMP6]], [[MIDDLE_BLOCK]] ], [ [[STARTVAL1]], [[ENTRY1:%.*]] ] ; NO-VP-NEXT: [[BC_RESUME_VAL5:%.*]] = phi i32 [ [[TMP7]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY1]] ] ; NO-VP-NEXT: br label [[FOR_BODY1:%.*]] ; NO-VP: for.body: ; NO-VP-NEXT: [[ADD_PHI:%.*]] = phi i64 [ [[STARTVAL]], [[ENTRY]] ], [ [[ADD:%.*]], [[FOR_INC:%.*]] ] ; NO-VP-NEXT: [[I:%.*]] = phi i32 [ [[BC_RESUME_VAL5]], [[ENTRY]] ], [ [[INC:%.*]], [[FOR_INC]] ] ; NO-VP-NEXT: [[ADD]] = add i64 [[ADD_PHI]], -1 ; NO-VP-NEXT: [[GEPL:%.*]] = getelementptr inbounds i32, ptr [[PTR]], i32 [[I]] ; NO-VP-NEXT: [[TMP:%.*]] = load i32, ptr [[GEPL]], align 4 ; NO-VP-NEXT: [[CMP1:%.*]] = icmp slt i32 [[TMP]], 100 ; NO-VP-NEXT: br i1 [[CMP1]], label [[IF_THEN:%.*]], label [[FOR_INC]] ; NO-VP: if.then: ; NO-VP-NEXT: [[GEPL1:%.*]] = getelementptr inbounds i32, ptr [[PTR1]], i64 [[ADD]] ; NO-VP-NEXT: [[V:%.*]] = load i32, ptr [[GEPL1]], align 4 ; NO-VP-NEXT: [[GEPS:%.*]] = getelementptr inbounds i32, ptr [[PTR2]], i64 [[ADD]] ; NO-VP-NEXT: store i32 [[V]], ptr [[GEPS]], align 4 ; NO-VP-NEXT: br label [[FOR_INC]] ; NO-VP: for.inc: ; NO-VP-NEXT: [[INC]] = add i32 [[I]], 1 ; NO-VP-NEXT: [[EXITCOND:%.*]] = icmp ne i32 [[INC]], 1024 ; NO-VP-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY1]], label [[LOOPEND]], !llvm.loop [[LOOP5:![0-9]+]] ; NO-VP: loopend: ; NO-VP-NEXT: ret void ; entry: br label %for.body for.body: %add.phi = phi i64 [ %startval, %entry ], [ %add, %for.inc ] %i = phi i32 [ 0, %entry ], [ %inc, %for.inc ] %add = add i64 %add.phi, -1 %gepl = getelementptr inbounds i32, ptr %ptr, i32 %i %tmp = load i32, ptr %gepl, align 4 %cmp1 = icmp slt i32 %tmp, 100 br i1 %cmp1, label %if.then, label %for.inc if.then: %gepl1 = getelementptr inbounds i32, ptr %ptr1, i64 %add %v = load i32, ptr %gepl1, align 4 %geps = getelementptr inbounds i32, ptr %ptr2, i64 %add store i32 %v, ptr %geps, align 4 br label %for.inc for.inc: %inc = add i32 %i, 1 %exitcond = icmp ne i32 %inc, 1024 br i1 %exitcond, label %for.body, label %loopend loopend: ret void } ; From a miscompile originally reported at ; https://github.com/llvm/llvm-project/issues/122681 define void @multiple_reverse_vector_pointer(ptr noalias %a, ptr noalias %b, ptr noalias %c, ptr noalias %d) { ; IF-EVL-LABEL: @multiple_reverse_vector_pointer( ; IF-EVL-NEXT: entry: ; IF-EVL-NEXT: br label [[VECTOR_PH:%.*]] ; IF-EVL: vector.ph: ; IF-EVL-NEXT: br label [[VECTOR_BODY:%.*]] ; IF-EVL: vector.body: ; IF-EVL-NEXT: [[EVL_BASED_IV:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_EVL_NEXT:%.*]], [[VECTOR_BODY]] ] ; IF-EVL-NEXT: [[AVL:%.*]] = phi i64 [ 1025, [[VECTOR_PH]] ], [ [[AVL_NEXT:%.*]], [[VECTOR_BODY]] ] ; IF-EVL-NEXT: [[TMP6:%.*]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[AVL]], i32 16, i1 true) ; IF-EVL-NEXT: [[OFFSET_IDX:%.*]] = sub i64 1024, [[EVL_BASED_IV]] ; IF-EVL-NEXT: [[TMP8:%.*]] = getelementptr i8, ptr [[A:%.*]], i64 [[OFFSET_IDX]] ; IF-EVL-NEXT: [[TMP9:%.*]] = zext i32 [[TMP6]] to i64 ; IF-EVL-NEXT: [[TMP10:%.*]] = mul i64 0, [[TMP9]] ; IF-EVL-NEXT: [[TMP29:%.*]] = sub i64 [[TMP9]], 1 ; IF-EVL-NEXT: [[TMP11:%.*]] = mul i64 -1, [[TMP29]] ; IF-EVL-NEXT: [[TMP12:%.*]] = getelementptr i8, ptr [[TMP8]], i64 [[TMP10]] ; IF-EVL-NEXT: [[TMP13:%.*]] = getelementptr i8, ptr [[TMP12]], i64 [[TMP11]] ; IF-EVL-NEXT: [[VP_OP_LOAD:%.*]] = call @llvm.vp.load.nxv16i8.p0(ptr align 1 [[TMP13]], splat (i1 true), i32 [[TMP6]]) ; IF-EVL-NEXT: [[VP_REVERSE:%.*]] = call @llvm.experimental.vp.reverse.nxv16i8( [[VP_OP_LOAD]], splat (i1 true), i32 [[TMP6]]) ; IF-EVL-NEXT: [[TMP14:%.*]] = getelementptr i8, ptr [[B:%.*]], [[VP_REVERSE]] ; IF-EVL-NEXT: [[WIDE_MASKED_GATHER:%.*]] = call @llvm.vp.gather.nxv16i8.nxv16p0( align 1 [[TMP14]], splat (i1 true), i32 [[TMP6]]) ; IF-EVL-NEXT: [[TMP15:%.*]] = getelementptr i8, ptr [[C:%.*]], i64 [[OFFSET_IDX]] ; IF-EVL-NEXT: [[TMP16:%.*]] = zext i32 [[TMP6]] to i64 ; IF-EVL-NEXT: [[TMP17:%.*]] = mul i64 0, [[TMP16]] ; IF-EVL-NEXT: [[TMP30:%.*]] = sub i64 [[TMP16]], 1 ; IF-EVL-NEXT: [[TMP18:%.*]] = mul i64 -1, [[TMP30]] ; IF-EVL-NEXT: [[TMP19:%.*]] = getelementptr i8, ptr [[TMP15]], i64 [[TMP17]] ; IF-EVL-NEXT: [[TMP20:%.*]] = getelementptr i8, ptr [[TMP19]], i64 [[TMP18]] ; IF-EVL-NEXT: [[VP_REVERSE1:%.*]] = call @llvm.experimental.vp.reverse.nxv16i8( [[WIDE_MASKED_GATHER]], splat (i1 true), i32 [[TMP6]]) ; IF-EVL-NEXT: call void @llvm.vp.store.nxv16i8.p0( [[VP_REVERSE1]], ptr align 1 [[TMP20]], splat (i1 true), i32 [[TMP6]]) ; IF-EVL-NEXT: [[TMP21:%.*]] = getelementptr i8, ptr [[D:%.*]], i64 [[OFFSET_IDX]] ; IF-EVL-NEXT: [[TMP22:%.*]] = zext i32 [[TMP6]] to i64 ; IF-EVL-NEXT: [[TMP23:%.*]] = mul i64 0, [[TMP22]] ; IF-EVL-NEXT: [[TMP31:%.*]] = sub i64 [[TMP22]], 1 ; IF-EVL-NEXT: [[TMP24:%.*]] = mul i64 -1, [[TMP31]] ; IF-EVL-NEXT: [[TMP25:%.*]] = getelementptr i8, ptr [[TMP21]], i64 [[TMP23]] ; IF-EVL-NEXT: [[TMP26:%.*]] = getelementptr i8, ptr [[TMP25]], i64 [[TMP24]] ; IF-EVL-NEXT: [[VP_REVERSE2:%.*]] = call @llvm.experimental.vp.reverse.nxv16i8( [[WIDE_MASKED_GATHER]], splat (i1 true), i32 [[TMP6]]) ; IF-EVL-NEXT: call void @llvm.vp.store.nxv16i8.p0( [[VP_REVERSE2]], ptr align 1 [[TMP26]], splat (i1 true), i32 [[TMP6]]) ; IF-EVL-NEXT: [[TMP27:%.*]] = zext i32 [[TMP6]] to i64 ; IF-EVL-NEXT: [[INDEX_EVL_NEXT]] = add nuw i64 [[TMP27]], [[EVL_BASED_IV]] ; IF-EVL-NEXT: [[AVL_NEXT]] = sub nuw i64 [[AVL]], [[TMP27]] ; IF-EVL-NEXT: [[TMP32:%.*]] = icmp eq i64 [[AVL_NEXT]], 0 ; IF-EVL-NEXT: br i1 [[TMP32]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP4:![0-9]+]] ; IF-EVL: middle.block: ; IF-EVL-NEXT: br label [[LOOP:%.*]] ; IF-EVL: exit: ; IF-EVL-NEXT: ret void ; ; NO-VP-LABEL: @multiple_reverse_vector_pointer( ; NO-VP-NEXT: entry: ; NO-VP-NEXT: br label [[VECTOR_PH:%.*]] ; NO-VP: vector.ph: ; NO-VP-NEXT: br label [[LOOP:%.*]] ; NO-VP: vector.body: ; NO-VP-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[LOOP]] ] ; NO-VP-NEXT: [[OFFSET_IDX:%.*]] = sub i64 1024, [[INDEX]] ; NO-VP-NEXT: [[TMP0:%.*]] = getelementptr i8, ptr [[A:%.*]], i64 [[OFFSET_IDX]] ; NO-VP-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[TMP0]], i32 0 ; NO-VP-NEXT: [[TMP2:%.*]] = getelementptr i8, ptr [[TMP1]], i32 -15 ; NO-VP-NEXT: [[WIDE_LOAD:%.*]] = load <16 x i8>, ptr [[TMP2]], align 1 ; NO-VP-NEXT: [[REVERSE:%.*]] = shufflevector <16 x i8> [[WIDE_LOAD]], <16 x i8> poison, <16 x i32> ; NO-VP-NEXT: [[TMP3:%.*]] = getelementptr i8, ptr [[B:%.*]], <16 x i8> [[REVERSE]] ; NO-VP-NEXT: [[WIDE_MASKED_GATHER:%.*]] = call <16 x i8> @llvm.masked.gather.v16i8.v16p0(<16 x ptr> align 1 [[TMP3]], <16 x i1> splat (i1 true), <16 x i8> poison) ; NO-VP-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[C:%.*]], i64 [[OFFSET_IDX]] ; NO-VP-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[TMP4]], i32 0 ; NO-VP-NEXT: [[TMP6:%.*]] = getelementptr i8, ptr [[TMP5]], i32 -15 ; NO-VP-NEXT: [[REVERSE1:%.*]] = shufflevector <16 x i8> [[WIDE_MASKED_GATHER]], <16 x i8> poison, <16 x i32> ; NO-VP-NEXT: store <16 x i8> [[REVERSE1]], ptr [[TMP6]], align 1 ; NO-VP-NEXT: [[TMP7:%.*]] = getelementptr i8, ptr [[D:%.*]], i64 [[OFFSET_IDX]] ; NO-VP-NEXT: [[TMP8:%.*]] = getelementptr i8, ptr [[TMP7]], i32 0 ; NO-VP-NEXT: [[TMP9:%.*]] = getelementptr i8, ptr [[TMP8]], i32 -15 ; NO-VP-NEXT: store <16 x i8> [[REVERSE1]], ptr [[TMP9]], align 1 ; NO-VP-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16 ; NO-VP-NEXT: [[TMP10:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024 ; NO-VP-NEXT: br i1 [[TMP10]], label [[MIDDLE_BLOCK:%.*]], label [[LOOP]], !llvm.loop [[LOOP6:![0-9]+]] ; NO-VP: middle.block: ; NO-VP-NEXT: br label [[SCALAR_PH:%.*]] ; NO-VP: scalar.ph: ; NO-VP-NEXT: br label [[LOOP1:%.*]] ; NO-VP: loop: ; NO-VP-NEXT: [[IV:%.*]] = phi i64 [ 0, [[SCALAR_PH]] ], [ [[IV_NEXT:%.*]], [[LOOP1]] ] ; NO-VP-NEXT: [[GEP_A:%.*]] = getelementptr i8, ptr [[A]], i64 [[IV]] ; NO-VP-NEXT: [[X:%.*]] = load i8, ptr [[GEP_A]], align 1 ; NO-VP-NEXT: [[GEP_B:%.*]] = getelementptr i8, ptr [[B]], i8 [[X]] ; NO-VP-NEXT: [[Y:%.*]] = load i8, ptr [[GEP_B]], align 1 ; NO-VP-NEXT: [[GEP_C:%.*]] = getelementptr i8, ptr [[C]], i64 [[IV]] ; NO-VP-NEXT: store i8 [[Y]], ptr [[GEP_C]], align 1 ; NO-VP-NEXT: [[GEP_D:%.*]] = getelementptr i8, ptr [[D]], i64 [[IV]] ; NO-VP-NEXT: store i8 [[Y]], ptr [[GEP_D]], align 1 ; NO-VP-NEXT: [[IV_NEXT]] = add i64 [[IV]], -1 ; NO-VP-NEXT: [[CMP_NOT:%.*]] = icmp eq i64 [[IV]], 0 ; NO-VP-NEXT: br i1 [[CMP_NOT]], label [[EXIT:%.*]], label [[LOOP1]], !llvm.loop [[LOOP7:![0-9]+]] ; NO-VP: exit: ; NO-VP-NEXT: ret void ; entry: br label %loop loop: %iv = phi i64 [ 1024, %entry ], [ %iv.next, %loop ] %gep.a = getelementptr i8, ptr %a, i64 %iv %x = load i8, ptr %gep.a %gep.b = getelementptr i8, ptr %b, i8 %x %y = load i8, ptr %gep.b %gep.c = getelementptr i8, ptr %c, i64 %iv store i8 %y, ptr %gep.c %gep.d = getelementptr i8, ptr %d, i64 %iv store i8 %y, ptr %gep.d %iv.next = add i64 %iv, -1 %cmp.not = icmp eq i64 %iv, 0 br i1 %cmp.not, label %exit, label %loop exit: ret void }