invariant_load_scalar_dep.ll
1.44 KB
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; RUN: opt %loadPolly -polly-codegen -polly-invariant-load-hoisting=true -polly-ignore-aliasing -polly-process-unprofitable -S < %s | FileCheck %s
;
; CHECK-LABEL: polly.preload.begin:
; CHECK: %polly.access.B = getelementptr i32, i32* %B, i64 0
; CHECK: %polly.access.B.load = load i32, i32* %polly.access.B
;
; CHECK-LABEL: polly.stmt.bb2.split:
; CHECK: %scevgep = getelementptr i32, i32* %A, i64 %polly.indvar
; CHECK: store i32 %polly.access.B.load, i32* %scevgep, align 4
;
; void f(int *restrict A, int *restrict B) {
; for (int i = 0; i < 1024; i++)
; auto tmp = *B;
; // Split BB
; A[i] = tmp;
; }
;
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define void @f(i32* noalias %A, i32* noalias %B) {
bb:
br label %bb1
bb1: ; preds = %bb4, %bb
%indvars.iv = phi i64 [ %indvars.iv.next, %bb4 ], [ 0, %bb ]
%exitcond = icmp ne i64 %indvars.iv, 1024
br i1 %exitcond, label %bb2, label %bb5
bb2: ; preds = %bb1
%tmp = load i32, i32* %B, align 4
br label %bb2.split
bb2.split:
%tmp3 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
store i32 %tmp, i32* %tmp3, align 4
br label %bb4
bb4: ; preds = %bb2
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
br label %bb1
bb5: ; preds = %bb1
ret void
}