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; RUN: opt %loadPolly -polly-scops -polly-invariant-load-hoisting=true -analyze < %s | FileCheck %s
; RUN: opt %loadPolly -polly-codegen -polly-invariant-load-hoisting=true -S < %s | FileCheck %s --check-prefix=IR
;
; CHECK: Invariant Accesses: {
; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
; CHECK-NEXT: [N, tmp1] -> { Stmt_for_body[i0] -> MemRef_I[0] };
; CHECK-NEXT: Execution Context: [N, tmp1] -> { : N > 0 and (tmp1 >= 43 or tmp1 <= 41) }
; CHECK-NEXT: }
; CHECK: Invalid Context:
; CHECK-NEXT: [N, tmp1] -> { : tmp1 = 42 and N > 0 }
;
; IR: polly.preload.begin:
; IR-NEXT: br i1 false, label %polly.start, label %for.cond
;
; void f(int *A, int *I, int N) {
; for (int i = 0; i < N; i++) {
; if (*I == 42)
; *I = 0;
; else
; A[i]++;
; }
; }
;
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define void @f(i32* %A, i32* %I, i32 %N) {
entry:
%tmp = sext i32 %N to i64
br label %for.cond
for.cond: ; preds = %for.inc, %entry
%indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ]
%cmp = icmp slt i64 %indvars.iv, %tmp
br i1 %cmp, label %for.body, label %for.end
for.body: ; preds = %for.cond
%tmp1 = load i32, i32* %I, align 4
%cmp1 = icmp eq i32 %tmp1, 42
br i1 %cmp1, label %if.then, label %if.else
if.then: ; preds = %for.body
store i32 0, i32* %I, align 4
br label %if.end
if.else: ; preds = %for.body
%arrayidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
%tmp2 = load i32, i32* %arrayidx, align 4
%inc = add nsw i32 %tmp2, 1
store i32 %inc, i32* %arrayidx, align 4
br label %if.end
if.end: ; preds = %if.else, %if.then
br label %for.inc
for.inc: ; preds = %if.end
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
br label %for.cond
for.end: ; preds = %for.cond
ret void
}
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