multiple_exiting_blocks_two_loop.ll
2.64 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: *
;
; void foo(long n, float A[100]) {
; for (long j = 0; j < n; j++) {
; for (long i = j; i < n; i++) {
; if (i < 0)
; goto end;
;
; if (i >= 100)
; goto end;
;
; A[i] += i;
; }
; }
; end:
; return;
; }
;
; CHECK: Domain :=
; CHECK: [n] -> { Stmt_if_end_7[i0, i1] : i0 >= 0 and 0 <= i1 <= 99 - i0 and i1 < n - i0 };
;
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define void @foo(i64 %n, float* %A) {
entry:
br label %for.cond
for.cond: ; preds = %for.inc.8, %entry
%j.0 = phi i64 [ 0, %entry ], [ %inc9, %for.inc.8 ]
%cmp = icmp slt i64 %j.0, %n
br i1 %cmp, label %for.body, label %for.end.10
for.body: ; preds = %for.cond
br label %for.cond.1
for.cond.1: ; preds = %for.inc, %for.body
%i.0 = phi i64 [ %j.0, %for.body ], [ %inc, %for.inc ]
%cmp2 = icmp slt i64 %i.0, %n
br i1 %cmp2, label %for.body.3, label %for.end
for.body.3: ; preds = %for.cond.1
br i1 false, label %if.then, label %if.end
if.then: ; preds = %for.body.3
br label %end
if.end: ; preds = %for.body.3
%cmp5 = icmp sgt i64 %i.0, 99
br i1 %cmp5, label %if.then.6, label %if.end.7
if.then.6: ; preds = %if.end
br label %end
if.end.7: ; preds = %if.end
%conv = sitofp i64 %i.0 to float
%arrayidx = getelementptr inbounds float, float* %A, i64 %i.0
%tmp = load float, float* %arrayidx, align 4
%add = fadd float %tmp, %conv
store float %add, float* %arrayidx, align 4
br label %for.inc
for.inc: ; preds = %if.end.7
%inc = add nuw nsw i64 %i.0, 1
br label %for.cond.1
for.end: ; preds = %for.cond.1
br label %for.inc.8
for.inc.8: ; preds = %for.end
%inc9 = add nuw nsw i64 %j.0, 1
br label %for.cond
for.end.10: ; preds = %for.cond
br label %end
end: ; preds = %for.end.10, %if.then.6, %if.then
ret void
}