1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt < %s -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -S | FileCheck %s 3target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 4 5 6; Function Attrs: nofree norecurse nounwind 7define void @a(i8* readnone %b) { 8; CHECK-LABEL: @a( 9; CHECK: vector.ph: 10; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[TMP0:%.*]], 4 11; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[TMP0]], [[N_MOD_VF]] 12; CHECK-NEXT: [[TMP1:%.*]] = mul i64 [[N_VEC]], -1 13; CHECK-NEXT: [[IND_END:%.*]] = getelementptr i8, i8* null, i64 [[TMP1]] 14; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] 15; CHECK: vector.body: 16; CHECK-NEXT: [[POINTER_PHI:%.*]] = phi i8* [ null, %vector.ph ], [ [[PTR_IND:%.*]], %pred.store.continue7 ] 17; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %vector.ph ], [ [[INDEX_NEXT:%.*]], %pred.store.continue7 ] 18; CHECK-NEXT: [[TMP2:%.*]] = getelementptr i8, i8* [[POINTER_PHI]], <4 x i64> <i64 0, i64 -1, i64 -2, i64 -3> 19; CHECK-NEXT: [[TMP3:%.*]] = getelementptr inbounds i8, <4 x i8*> [[TMP2]], i64 -1 20; CHECK-NEXT: [[TMP4:%.*]] = extractelement <4 x i8*> [[TMP3]], i32 0 21; CHECK-NEXT: [[TMP5:%.*]] = getelementptr i8, i8* [[TMP4]], i32 0 22; CHECK-NEXT: [[TMP6:%.*]] = getelementptr i8, i8* [[TMP5]], i32 -3 23; CHECK-NEXT: [[TMP7:%.*]] = bitcast i8* [[TMP6]] to <4 x i8>* 24; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <4 x i8>, <4 x i8>* [[TMP7]], align 1 25; CHECK-NEXT: [[REVERSE:%.*]] = shufflevector <4 x i8> [[WIDE_LOAD]], <4 x i8> undef, <4 x i32> <i32 3, i32 2, i32 1, i32 0> 26; CHECK-NEXT: [[TMP8:%.*]] = icmp eq <4 x i8> [[REVERSE]], zeroinitializer 27; CHECK-NEXT: [[TMP9:%.*]] = xor <4 x i1> [[TMP8]], <i1 true, i1 true, i1 true, i1 true> 28; CHECK-NEXT: [[TMP10:%.*]] = extractelement <4 x i1> [[TMP9]], i32 0 29; CHECK: pred.store.continue7: 30; CHECK-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 4 31; CHECK-NEXT: [[TMP18:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] 32; CHECK-NEXT: [[PTR_IND]] = getelementptr i8, i8* [[POINTER_PHI]], i64 -4 33 34entry: 35 %cmp.not4 = icmp eq i8* %b, null 36 br i1 %cmp.not4, label %for.cond.cleanup, label %for.body.preheader 37 38for.body.preheader: ; preds = %entry 39 br label %for.body 40 41for.cond.cleanup.loopexit: ; preds = %if.end 42 br label %for.cond.cleanup 43 44for.cond.cleanup: ; preds = %for.cond.cleanup.loopexit, %entry 45 ret void 46 47for.body: ; preds = %for.body.preheader, %if.end 48 %c.05 = phi i8* [ %incdec.ptr, %if.end ], [ null, %for.body.preheader ] 49 %incdec.ptr = getelementptr inbounds i8, i8* %c.05, i64 -1 50 %0 = load i8, i8* %incdec.ptr, align 1 51 %tobool.not = icmp eq i8 %0, 0 52 br i1 %tobool.not, label %if.end, label %if.then 53 54if.then: ; preds = %for.body 55 store i8 95, i8* %incdec.ptr, align 1 56 br label %if.end 57 58if.end: ; preds = %for.body, %if.then 59 %cmp.not = icmp eq i8* %incdec.ptr, %b 60 br i1 %cmp.not, label %for.cond.cleanup.loopexit, label %for.body 61} 62 63