loop-vectorize.ll
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; RUN: opt < %s -O3 -S | FileCheck %s
target datalayout = "e-i64:64-v16:16-v32:32-n16:32:64"
target triple = "nvptx64-nvidia-cuda"
define void @no_vectorization(i32 %n, i32 %a, i32 %b) {
; CHECK-LABEL: no_vectorization(
; CHECK-NOT: <4 x i32>
; CHECK-NOT: <4 x i1>
entry:
%cmp.5 = icmp sgt i32 %n, 0
br i1 %cmp.5, label %for.body.preheader, label %for.cond.cleanup
for.body.preheader: ; preds = %entry
br label %for.body
for.cond.cleanup.loopexit: ; preds = %for.body
br label %for.cond.cleanup
for.cond.cleanup: ; preds = %for.cond.cleanup.loopexit, %entry
ret void
for.body: ; preds = %for.body.preheader, %for.body
%i.06 = phi i32 [ %inc, %for.body ], [ 0, %for.body.preheader ]
%add = add nsw i32 %i.06, %a
%mul = mul nsw i32 %add, %b
%cmp1 = icmp sgt i32 %mul, -1
tail call void @llvm.assume(i1 %cmp1)
%inc = add nuw nsw i32 %i.06, 1
%exitcond = icmp eq i32 %inc, %n
br i1 %exitcond, label %for.cond.cleanup.loopexit, label %for.body
}
declare void @llvm.assume(i1) #0
attributes #0 = { nounwind }
!nvvm.annotations = !{!0}
!0 = !{void (i32, i32, i32)* @no_vectorization, !"kernel", i32 1}