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| ; RUN: opt %loadPolly -polly-scops -analyze < %s | FileCheck %s
;
;
; void foo(long n, float A[][n]) {
; for (long i = 0; i < 100; i++)
; for (long j = 0; j < n; j++)
; A[i][j] += A[i][n - j - 1];
; }
;
; Verify that the parameter in the subscript expression is correctly
; recovered.
;
; CHECK: Assumed Context:
; CHECK-NEXT: [n] -> { : }
;
; CHECK: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
; CHECK-NEXT: [n] -> { Stmt_for_body3[i0, i1] -> MemRef_A[i0, -1 + n - i1] };
;
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define void @foo(i64 %n, float* %A) {
entry:
br label %for.cond
for.cond: ; preds = %for.inc8, %entry
%i.0 = phi i64 [ 0, %entry ], [ %inc9, %for.inc8 ]
%exitcond = icmp ne i64 %i.0, 100
br i1 %exitcond, label %for.body, label %for.end10
for.body: ; preds = %for.cond
br label %for.cond1
for.cond1: ; preds = %for.inc, %for.body
%j.0 = phi i64 [ 0, %for.body ], [ %inc, %for.inc ]
%cmp2 = icmp slt i64 %j.0, %n
br i1 %cmp2, label %for.body3, label %for.end
for.body3: ; preds = %for.cond1
%sub = sub nsw i64 %n, %j.0
%sub4 = add nsw i64 %sub, -1
%tmp = mul nsw i64 %i.0, %n
%arrayidx.sum = add i64 %tmp, %sub4
%arrayidx5 = getelementptr inbounds float, float* %A, i64 %arrayidx.sum
%tmp1 = load float, float* %arrayidx5, align 4
%tmp2 = mul nsw i64 %i.0, %n
%arrayidx6.sum = add i64 %tmp2, %j.0
%arrayidx7 = getelementptr inbounds float, float* %A, i64 %arrayidx6.sum
%tmp3 = load float, float* %arrayidx7, align 4
%add = fadd float %tmp3, %tmp1
store float %add, float* %arrayidx7, align 4
br label %for.inc
for.inc: ; preds = %for.body3
%inc = add nuw nsw i64 %j.0, 1
br label %for.cond1
for.end: ; preds = %for.cond1
br label %for.inc8
for.inc8: ; preds = %for.end
%inc9 = add nuw nsw i64 %i.0, 1
br label %for.cond
for.end10: ; preds = %for.cond
ret void
}
|