skip_function_attribute.ll
1.4 KB
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; RUN: opt %loadPolly -polly-detect -analyze < %s | FileCheck %s
;
; Verify polly skips this function
;
; CHECK-NOT: Valid Region for Scop
;
; void polly_skip_me(int *A, int N) {
; for (int i = 0; i < N; i++)
; A[i] = A[i] * A[i] + A[i];
; }
;
target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64"
define void @polly_skip_me(i32* %A, i32 %N) #0 {
entry:
br label %entry.split
entry.split: ; preds = %entry
%cmp1 = icmp sgt i32 %N, 0
br i1 %cmp1, label %for.body.preheader, label %for.end
for.body.preheader: ; preds = %entry.split
br label %for.body
for.body: ; preds = %for.body.preheader, %for.body
%i.02 = phi i32 [ %inc, %for.body ], [ 0, %for.body.preheader ]
%arrayidx = getelementptr inbounds i32, i32* %A, i32 %i.02
%tmp = load i32, i32* %arrayidx, align 4
%mul = mul nsw i32 %tmp, %tmp
%add = add nsw i32 %mul, %tmp
%arrayidx3 = getelementptr inbounds i32, i32* %A, i32 %i.02
store i32 %add, i32* %arrayidx3, align 4
%inc = add nsw i32 %i.02, 1
%cmp = icmp slt i32 %inc, %N
br i1 %cmp, label %for.body, label %for.end.loopexit
for.end.loopexit: ; preds = %for.body
br label %for.end
for.end: ; preds = %for.end.loopexit, %entry.split
ret void
}
attributes #0 = { "polly.skip.fn" }