llvm-project/polly/test/TempScop/intra_and_inter_bb_scalar_d...

58 lines
1.9 KiB
LLVM

; RUN: opt %loadPolly -polly-detect-unprofitable -basicaa -polly-analyze-ir -analyze < %s | FileCheck %s
; RUN: opt %loadPolly -polly-detect-unprofitable -basicaa -polly-analyze-ir -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) {
; init2 = *init_ptr;
; A[i] = init + init2;
; }
; }
; }
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
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: BB: entry.next
; CHECK: Read init_ptr[0]
; CHECK: Write init[0]
br label %for.j
for.j: ; preds = %for.j, %entry.next
%indvar.j = phi i64 [ 0, %entry.next ], [ %indvar.j.next, %for.j ]
%init_2 = load i64, i64* %init_ptr
%init_sum = add i64 %init, %init_2
; CHECK: BB: for.j
; CHECK: Read init[0]
; CHECK: Read init_ptr[0]
; CHECK: Write A[{0,+,8}<%for.j>]
%scevgep = getelementptr i64, i64* %A, i64 %indvar.j
store i64 %init_sum, 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 }