invariant_load_escaping_second_scop.ll
2.05 KB
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; RUN: opt %loadPolly -polly-codegen -polly-invariant-load-hoisting=true -polly-process-unprofitable -S < %s | FileCheck %s
;
; void fence(void);
;
; void f(int *A, int *B) {
; int i = 0;
; int x = 0;
;
; do {
; x = *B;
; S: A[i] += x;
; } while (i++ < 100);
;
; fence();
;
; do {
; P: A[i]++;
; } while (i++ < x / 2);
; }
;
; CHECK: polly.stmt.stmt.P:
; CHECK: sext i32 %tmp.merge to i64
;
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define void @f(i32* %A, i32* %B) {
entry:
br label %stmt.S
stmt.S: ; preds = %do.cond, %entry
%indvars.iv2 = phi i64 [ %indvars.iv.next3, %do.cond ], [ 0, %entry ]
%tmp = load i32, i32* %B, align 4
%arrayidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv2
%tmp4 = load i32, i32* %arrayidx, align 4
%add = add nsw i32 %tmp4, %tmp
store i32 %add, i32* %arrayidx, align 4
br label %do.cond
do.cond: ; preds = %do.body
%indvars.iv.next3 = add nuw nsw i64 %indvars.iv2, 1
%exitcond = icmp ne i64 %indvars.iv.next3, 101
br i1 %exitcond, label %stmt.S, label %do.end
do.end: ; preds = %do.cond
%tmp5 = trunc i64 101 to i32
call void @fence() #2
%tmp6 = sext i32 %tmp5 to i64
br label %stmt.P
stmt.P: ; preds = %do.cond.5, %do.end
%indvars.iv = phi i64 [ %indvars.iv.next, %do.cond.5 ], [ %tmp6, %do.end ]
%arrayidx3 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
%tmp7 = load i32, i32* %arrayidx3, align 4
%inc4 = add nsw i32 %tmp7, 1
store i32 %inc4, i32* %arrayidx3, align 4
br label %do.cond.5
do.cond.5: ; preds = %do.body.1
%div = sdiv i32 %tmp, 2
%tmp8 = sext i32 %div to i64
%cmp7 = icmp slt i64 %indvars.iv, %tmp8
%indvars.iv.next = add i64 %indvars.iv, 1
br i1 %cmp7, label %stmt.P, label %do.end.8
do.end.8: ; preds = %do.cond.5
ret void
}
declare void @fence()