multiple_exiting_blocks.ll
2.29 KB
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; RUN: opt %loadPolly -polly-scops -analyze < %s | FileCheck %s
;
; The SCoP contains a loop with multiple exit blocks (BBs after leaving
; the loop). The current implementation of deriving their domain derives
; only a common domain for all of the exit blocks. We disabled loops with
; multiple exit blocks until this is fixed.
; XFAIL: *
;
; CHECK: Domain :=
; CHECK: [N, P, Q] -> { Stmt_if_end[i0] : 0 <= i0 <= 1 + Q and i0 < N and (i0 < P or (P < 0 and i0 >= 2 + P)); Stmt_if_end[0] : N > 0 and ((P <= -2 and Q <= -2) or (P > 0 and Q <= -2) or P = -1) };
;
; void f(int *A, int N, int P, int Q) {
; for (int i = 0; i < N; i++) {
; if (i == P)
; break;
; A[i]++;
; if (i > Q)
; break;
; }
; }
;
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define void @f(i32* %A, i32 %N, i32 %P, i32 %Q) {
entry:
%tmp = sext i32 %N to i64
%tmp1 = sext i32 %Q 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.loopexit
for.body: ; preds = %for.cond
%tmp2 = trunc i64 %indvars.iv to i32
%cmp1 = icmp eq i32 %tmp2, %P
br i1 %cmp1, label %if.then, label %if.end
if.then: ; preds = %for.body
br label %for.end
if.end: ; preds = %for.body
%arrayidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
%tmp3 = load i32, i32* %arrayidx, align 4
%inc = add nsw i32 %tmp3, 1
store i32 %inc, i32* %arrayidx, align 4
%cmp2 = icmp sgt i64 %indvars.iv, %tmp1
br i1 %cmp2, label %if.then.3, label %if.end.4
if.then.3: ; preds = %if.end
br label %for.end
if.end.4: ; preds = %if.end
br label %for.inc
for.inc: ; preds = %if.end.4
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
br label %for.cond
for.end.loopexit: ; preds = %for.cond
br label %for.end
for.end: ; preds = %for.end.loopexit, %if.then.3, %if.then
ret void
}