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| ; RUN: opt %loadPolly -polly-scops -pass-remarks-analysis="polly-scops" \
; RUN: -polly-allow-differing-element-types \
; RUN: -analyze < %s 2>&1 | FileCheck %s
;
;
; void foo(long n, long m, char A[][m]) {
; for (long i = 0; i < n; i++)
; for (long j = 0; j < m / 4; j++)
; *(float *)&A[i][4 * j] = A[i][j];
; }
;
; We do not yet correctly handle multi-dimensional arrays which are accessed
; through different base types. Verify that we correctly bail out.
;
; CHECK: Delinearization assumption: { : false }
;
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define void @foo(i64 %n, i64 %m, i8* %A) {
bb:
br label %bb1
bb1: ; preds = %bb20, %bb
%i.0 = phi i64 [ 0, %bb ], [ %tmp21, %bb20 ]
%tmp = icmp slt i64 %i.0, %n
br i1 %tmp, label %bb2, label %bb22
bb2: ; preds = %bb1
br label %bb3
bb3: ; preds = %bb17, %bb2
%j.0 = phi i64 [ 0, %bb2 ], [ %tmp18, %bb17 ]
%tmp4 = sdiv i64 %m, 4
%tmp5 = icmp slt i64 %j.0, %tmp4
br i1 %tmp5, label %bb6, label %bb19
bb6: ; preds = %bb3
%tmp7 = mul nsw i64 %i.0, %m
%tmp8 = getelementptr inbounds i8, i8* %A, i64 %tmp7
%tmp9 = getelementptr inbounds i8, i8* %tmp8, i64 %j.0
%tmp10 = load i8, i8* %tmp9, align 1
%tmp11 = sitofp i8 %tmp10 to float
%tmp12 = shl nsw i64 %j.0, 2
%tmp13 = mul nsw i64 %i.0, %m
%tmp14 = getelementptr inbounds i8, i8* %A, i64 %tmp13
%tmp15 = getelementptr inbounds i8, i8* %tmp14, i64 %tmp12
%tmp16 = bitcast i8* %tmp15 to float*
store float %tmp11, float* %tmp16, align 4
br label %bb17
bb17: ; preds = %bb6
%tmp18 = add nuw nsw i64 %j.0, 1
br label %bb3
bb19: ; preds = %bb3
br label %bb20
bb20: ; preds = %bb19
%tmp21 = add nuw nsw i64 %i.0, 1
br label %bb1
bb22: ; preds = %bb1
ret void
}
|