invariant_load_loop_ub.ll
1.27 KB
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; RUN: opt %loadPolly -polly-scops -polly-invariant-load-hoisting=true -polly-process-unprofitable -analyze < %s | FileCheck %s
; RUN: opt %loadPolly -polly-function-scops -polly-invariant-load-hoisting=true -polly-process-unprofitable -analyze < %s | FileCheck %s
;
; CHECK: Invariant Accesses:
; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
; CHECK-NEXT: { Stmt_bb1[i0] -> MemRef_UB[0] };
;
; void f(int *A, int *UB) {
; for (int i = 0; i < *UB; i++)
; A[i] = 0;
; }
;
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define void @f(i32* %A, i32* %UB) {
bb:
br label %bb1
bb1: ; preds = %bb6, %bb
%indvars.iv = phi i64 [ %indvars.iv.next, %bb6 ], [ 0, %bb ]
%tmp = load i32, i32* %UB, align 4
%tmp2 = sext i32 %tmp to i64
%tmp3 = icmp slt i64 %indvars.iv, %tmp2
br i1 %tmp3, label %bb4, label %bb7
bb4: ; preds = %bb1
%tmp5 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
store i32 0, i32* %tmp5, align 4
br label %bb6
bb6: ; preds = %bb4
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
br label %bb1
bb7: ; preds = %bb1
ret void
}