non_affine_but_srem.ll
3.24 KB
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; RUN: opt %loadPolly -polly-scops \
; RUN: -analyze < %s | FileCheck %s
;
; void pos(float *A, long n) {
; for (long i = 0; i < 100; i++)
; A[n % 42] += 1;
; }
;
;
; void neg(float *A, long n) {
; for (long i = 0; i < 100; i++)
; A[n % (-42)] += 1;
; }
; CHECK: Statements {
; CHECK-NEXT: Stmt_bb2
; CHECK-NEXT: Domain :=
; CHECK-NEXT: [n] -> { Stmt_bb2[i0] : 0 <= i0 <= 99 };
; CHECK-NEXT: Schedule :=
; CHECK-NEXT: [n] -> { Stmt_bb2[i0] -> [i0] };
; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
; CHECK-NEXT: [n] -> { Stmt_bb2[i0] -> MemRef_A[o0] : (-n + o0) mod 42 = 0 and -41 <= o0 <= 41 and ((n < 0 and o0 <= 0) or (n >= 0 and o0 >= 0)) }
; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
; CHECK-NEXT: [n] -> { Stmt_bb2[i0] -> MemRef_A[o0] : (-n + o0) mod 42 = 0 and -41 <= o0 <= 41 and ((n < 0 and o0 <= 0) or (n >= 0 and o0 >= 0)) }
; CHECK-NEXT: }
;
; CHECK: Statements {
; CHECK-NEXT: Stmt_bb2
; CHECK-NEXT: Domain :=
; CHECK-NEXT: [n] -> { Stmt_bb2[i0] : 0 <= i0 <= 99 };
; CHECK-NEXT: Schedule :=
; CHECK-NEXT: [n] -> { Stmt_bb2[i0] -> [i0] };
; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
; CHECK-NEXT: [n] -> { Stmt_bb2[i0] -> MemRef_A[o0] : (-n + o0) mod 42 = 0 and -41 <= o0 <= 41 and ((n > 0 and o0 >= 0) or (n <= 0 and o0 <= 0)) };
; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
; CHECK-NEXT: [n] -> { Stmt_bb2[i0] -> MemRef_A[o0] : (-n + o0) mod 42 = 0 and -41 <= o0 <= 41 and ((n > 0 and o0 >= 0) or (n <= 0 and o0 <= 0)) };
; CHECK-NEXT: }
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
}