| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -S | FileCheck %s |
| target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" |
| |
| |
| ; Function Attrs: nofree norecurse nounwind |
| define void @a(i8* readnone %b) { |
| ; CHECK-LABEL: @a( |
| ; CHECK: vector.ph: |
| ; CHECK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[TMP0:%.*]], 4 |
| ; CHECK-NEXT: [[N_VEC:%.*]] = sub i64 [[TMP0]], [[N_MOD_VF]] |
| ; CHECK-NEXT: [[TMP1:%.*]] = mul i64 [[N_VEC]], -1 |
| ; CHECK-NEXT: [[IND_END:%.*]] = getelementptr i8, i8* null, i64 [[TMP1]] |
| ; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] |
| ; CHECK: vector.body: |
| ; CHECK-NEXT: [[POINTER_PHI:%.*]] = phi i8* [ null, %vector.ph ], [ [[PTR_IND:%.*]], %pred.store.continue7 ] |
| ; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %vector.ph ], [ [[INDEX_NEXT:%.*]], %pred.store.continue7 ] |
| ; CHECK-NEXT: [[TMP2:%.*]] = getelementptr i8, i8* [[POINTER_PHI]], <4 x i64> <i64 0, i64 -1, i64 -2, i64 -3> |
| ; CHECK-NEXT: [[TMP3:%.*]] = getelementptr inbounds i8, <4 x i8*> [[TMP2]], i64 -1 |
| ; CHECK-NEXT: [[TMP4:%.*]] = extractelement <4 x i8*> [[TMP3]], i32 0 |
| ; CHECK-NEXT: [[TMP5:%.*]] = getelementptr i8, i8* [[TMP4]], i32 0 |
| ; CHECK-NEXT: [[TMP6:%.*]] = getelementptr i8, i8* [[TMP5]], i32 -3 |
| ; CHECK-NEXT: [[TMP7:%.*]] = bitcast i8* [[TMP6]] to <4 x i8>* |
| ; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <4 x i8>, <4 x i8>* [[TMP7]], align 1 |
| ; CHECK-NEXT: [[REVERSE:%.*]] = shufflevector <4 x i8> [[WIDE_LOAD]], <4 x i8> undef, <4 x i32> <i32 3, i32 2, i32 1, i32 0> |
| ; CHECK-NEXT: [[TMP8:%.*]] = icmp eq <4 x i8> [[REVERSE]], zeroinitializer |
| ; CHECK-NEXT: [[TMP9:%.*]] = xor <4 x i1> [[TMP8]], <i1 true, i1 true, i1 true, i1 true> |
| ; CHECK-NEXT: [[TMP10:%.*]] = extractelement <4 x i1> [[TMP9]], i32 0 |
| ; CHECK: pred.store.continue7: |
| ; CHECK-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 4 |
| ; CHECK-NEXT: [[TMP18:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]] |
| ; CHECK-NEXT: [[PTR_IND]] = getelementptr i8, i8* [[POINTER_PHI]], i64 -4 |
| |
| entry: |
| %cmp.not4 = icmp eq i8* %b, null |
| br i1 %cmp.not4, label %for.cond.cleanup, label %for.body.preheader |
| |
| for.body.preheader: ; preds = %entry |
| br label %for.body |
| |
| for.cond.cleanup.loopexit: ; preds = %if.end |
| br label %for.cond.cleanup |
| |
| for.cond.cleanup: ; preds = %for.cond.cleanup.loopexit, %entry |
| ret void |
| |
| for.body: ; preds = %for.body.preheader, %if.end |
| %c.05 = phi i8* [ %incdec.ptr, %if.end ], [ null, %for.body.preheader ] |
| %incdec.ptr = getelementptr inbounds i8, i8* %c.05, i64 -1 |
| %0 = load i8, i8* %incdec.ptr, align 1 |
| %tobool.not = icmp eq i8 %0, 0 |
| br i1 %tobool.not, label %if.end, label %if.then |
| |
| if.then: ; preds = %for.body |
| store i8 95, i8* %incdec.ptr, align 1 |
| br label %if.end |
| |
| if.end: ; preds = %for.body, %if.then |
| %cmp.not = icmp eq i8* %incdec.ptr, %b |
| br i1 %cmp.not, label %for.cond.cleanup.loopexit, label %for.body |
| } |
| |
