forked from OSchip/llvm-project
59 lines
2.1 KiB
LLVM
59 lines
2.1 KiB
LLVM
; RUN: opt %loadPolly -basic-aa -polly-scops \
|
|
; RUN: -polly-invariant-load-hoisting=true -analyze < %s | FileCheck %s
|
|
|
|
; void f(long A[], int N, int *init_ptr) {
|
|
; long i, j;
|
|
;
|
|
; for (i = 0; i < N; ++i) {
|
|
; init = *init_ptr;
|
|
; for (i = 0; i < N; ++i) {
|
|
; A[i] = init + 2;
|
|
; }
|
|
; }
|
|
; }
|
|
|
|
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
|
|
|
|
; Function Attrs: nounwind
|
|
; CHECK: Invariant
|
|
; CHECK: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
|
|
; CHECK-NEXT: MemRef_init_ptr[0]
|
|
|
|
define void @f(i64* noalias %A, i64 %N, i64* noalias %init_ptr) #0 {
|
|
entry:
|
|
br label %for.i
|
|
|
|
for.i: ; preds = %for.i.end, %entry
|
|
%indvar.i = phi i64 [ 0, %entry ], [ %indvar.i.next, %for.i.end ]
|
|
%indvar.i.next = add nsw i64 %indvar.i, 1
|
|
br label %entry.next
|
|
|
|
entry.next: ; preds = %for.i
|
|
%init = load i64, i64* %init_ptr
|
|
; CHECK-NOT: Stmt_entry_next
|
|
br label %for.j
|
|
|
|
for.j: ; preds = %for.j, %entry.next
|
|
%indvar.j = phi i64 [ 0, %entry.next ], [ %indvar.j.next, %for.j ]
|
|
%init_plus_two = add i64 %init, 2
|
|
; CHECK-LABEL: Stmt_for_j
|
|
; CHECK: ReadAccess := [Reduction Type: NONE] [Scalar: 1]
|
|
; CHECK-NEXT: [N] -> { Stmt_for_j[i0, i1] -> MemRef_init[] };
|
|
; CHECK: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
|
|
; CHECK-NEXT: [N] -> { Stmt_for_j[i0, i1] -> MemRef_A[i1] };
|
|
%scevgep = getelementptr i64, i64* %A, i64 %indvar.j
|
|
store i64 %init_plus_two, i64* %scevgep
|
|
%indvar.j.next = add nsw i64 %indvar.j, 1
|
|
%exitcond.j = icmp eq i64 %indvar.j.next, %N
|
|
br i1 %exitcond.j, label %for.i.end, label %for.j
|
|
|
|
for.i.end: ; preds = %for.j
|
|
%exitcond.i = icmp eq i64 %indvar.i.next, %N
|
|
br i1 %exitcond.i, label %return, label %for.i
|
|
|
|
return: ; preds = %for.i.end
|
|
ret void
|
|
}
|
|
|
|
attributes #0 = { nounwind }
|