llvm-project/polly/test/ScopInfo/NonAffine/non_affine_but_srem.ll

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; RUN: opt %loadPolly -polly-scops -analyze < %s | FileCheck %s
;
; void pos(float *A, long n) {
; for (long i = 0; i < 100; i++)
; A[n % 42] += 1;
; }
;
; CHECK: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
; CHECK: [n] -> { Stmt_bb2[i0] -> MemRef_A[o0] :
; CHECK: exists (e0 = floor((-n + o0)/42):
; CHECK: 42e0 = -n + o0 and o0 <= 41 and o0 >= 0) };
; CHECK: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
; CHECK: [n] -> { Stmt_bb2[i0] -> MemRef_A[o0] :
; CHECK: exists (e0 = floor((-n + o0)/42):
; CHECK: 42e0 = -n + o0 and o0 <= 41 and o0 >= 0) };
;
; void neg(float *A, long n) {
; for (long i = 0; i < 100; i++)
; A[n % (-42)] += 1;
; }
;
; CHECK: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
; CHECK: [n] -> { Stmt_bb2[i0] -> MemRef_A[o0] :
; CHECK: exists (e0 = floor((-n + o0)/42):
; CHECK: 42e0 = -n + o0 and o0 <= 41 and o0 >= 0) };
; CHECK: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
; CHECK: [n] -> { Stmt_bb2[i0] -> MemRef_A[o0] :
; CHECK: exists (e0 = floor((-n + o0)/42):
; CHECK: 42e0 = -n + o0 and o0 <= 41 and o0 >= 0) };
;
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define void @pos(float* %A, i64 %n) {
bb:
br label %bb1
bb1: ; preds = %bb6, %bb
%i.0 = phi i64 [ 0, %bb ], [ %tmp7, %bb6 ]
%exitcond = icmp ne i64 %i.0, 100
br i1 %exitcond, label %bb2, label %bb8
bb2: ; preds = %bb1
%tmp = srem i64 %n, 42
%tmp3 = getelementptr inbounds float, float* %A, i64 %tmp
%tmp4 = load float, float* %tmp3, align 4
%tmp5 = fadd float %tmp4, 1.000000e+00
store float %tmp5, float* %tmp3, align 4
br label %bb6
bb6: ; preds = %bb2
%tmp7 = add nsw i64 %i.0, 1
br label %bb1
bb8: ; preds = %bb1
ret void
}
define void @neg(float* %A, i64 %n) {
bb:
br label %bb1
bb1: ; preds = %bb6, %bb
%i.0 = phi i64 [ 0, %bb ], [ %tmp7, %bb6 ]
%exitcond = icmp ne i64 %i.0, 100
br i1 %exitcond, label %bb2, label %bb8
bb2: ; preds = %bb1
%tmp = srem i64 %n, -42
%tmp3 = getelementptr inbounds float, float* %A, i64 %tmp
%tmp4 = load float, float* %tmp3, align 4
%tmp5 = fadd float %tmp4, 1.000000e+00
store float %tmp5, float* %tmp3, align 4
br label %bb6
bb6: ; preds = %bb2
%tmp7 = add nsw i64 %i.0, 1
br label %bb1
bb8: ; preds = %bb1
ret void
}