xref: /llvm-project/llvm/test/Transforms/LoopVectorize/reduction-ptr.ll (revision 7d7577256b76e4293f455b8093504d5f7044ab4b)
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt < %s -passes=loop-vectorize -force-vector-width=4 -S | FileCheck %s
3
4target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
5
6; Reductions of pointer types are not supported.
7
8define void @PR49215(ptr %p, ptr %q) {
9; CHECK-LABEL: @PR49215(
10; CHECK-NEXT:  entry:
11; CHECK-NEXT:    br label [[FOR_BODY:%.*]]
12; CHECK:       for.body:
13; CHECK-NEXT:    [[IV:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
14; CHECK-NEXT:    [[G:%.*]] = phi ptr [ [[P:%.*]], [[ENTRY]] ], [ [[UMIN:%.*]], [[FOR_BODY]] ]
15; CHECK-NEXT:    [[CMP2:%.*]] = icmp ult ptr [[Q:%.*]], [[G]]
16; CHECK-NEXT:    [[UMIN]] = select i1 [[CMP2]], ptr [[Q]], ptr [[G]]
17; CHECK-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
18; CHECK-NEXT:    [[EXITCOND:%.*]] = icmp eq i64 [[IV_NEXT]], undef
19; CHECK-NEXT:    br i1 [[EXITCOND]], label [[LOOPEXIT:%.*]], label [[FOR_BODY]]
20; CHECK:       loopexit:
21; CHECK-NEXT:    [[UMIN_LCSSA:%.*]] = phi ptr [ [[UMIN]], [[FOR_BODY]] ]
22; CHECK-NEXT:    [[PHI_CAST:%.*]] = ptrtoint ptr [[UMIN_LCSSA]] to i64
23; CHECK-NEXT:    ret void
24;
25entry:
26  br label %for.body
27
28for.body:
29  %iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ]
30  %g = phi ptr [ %p, %entry ], [ %umin, %for.body ]
31  %cmp2 = icmp ult ptr %q, %g
32  %umin = select i1 %cmp2, ptr %q, ptr %g
33  %iv.next = add nuw nsw i64 %iv, 1
34  %exitcond = icmp eq i64 %iv.next, undef
35  br i1 %exitcond, label %loopexit, label %for.body
36
37loopexit:
38  %phi.cast = ptrtoint ptr %umin to i64
39  ret void
40}
41