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; RUN: opt %loadPolly -basic-aa -polly-print-scops -disable-output < %s \
; RUN: -polly-precise-inbounds | FileCheck %s
;
; void foo(float A[restrict][20], float B[restrict][20], long n, long m,
; long p) {
; for (long i = 0; i < n; i++)
; for (long j = 0; j < m; j++)
; A[i][j] = i + j;
; for (long i = 0; i < m; i++)
; for (long j = 0; j < p; j++)
; B[i][j] = i + j;
; }
; This code is within bounds either if m and p are smaller than the array sizes,
; but also if only p is smaller than the size of the second B dimension and n
; is such that the first loop is never executed and consequently A is never
; accessed. In this case the value of m does not matter.
; CHECK: Assumed Context:
; CHECK-NEXT: [n, m, p] -> { : p <= 20 and (n <= 0 or (n > 0 and m <= 20)) }
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define void @foo(ptr noalias %A, ptr noalias %B, i64 %n, i64 %m, i64 %p) {
entry:
br label %for.cond
for.cond: ; preds = %for.inc5, %entry
%i.0 = phi i64 [ 0, %entry ], [ %inc6, %for.inc5 ]
%cmp = icmp slt i64 %i.0, %n
br i1 %cmp, label %for.body, label %for.end7
for.body: ; preds = %for.cond
br label %for.cond1
for.cond1: ; preds = %for.inc, %for.body
%j.0 = phi i64 [ 0, %for.body ], [ %inc, %for.inc ]
%cmp2 = icmp slt i64 %j.0, %m
br i1 %cmp2, label %for.body3, label %for.end
for.body3: ; preds = %for.cond1
%add = add nsw i64 %i.0, %j.0
%conv = sitofp i64 %add to float
%arrayidx4 = getelementptr inbounds [20 x float], ptr %A, i64 %i.0, i64 %j.0
store float %conv, ptr %arrayidx4, align 4
br label %for.inc
for.inc: ; preds = %for.body3
%inc = add nsw i64 %j.0, 1
br label %for.cond1
for.end: ; preds = %for.cond1
br label %for.inc5
for.inc5: ; preds = %for.end
%inc6 = add nsw i64 %i.0, 1
br label %for.cond
for.end7: ; preds = %for.cond
br label %for.cond9
for.cond9: ; preds = %for.inc25, %for.end7
%i8.0 = phi i64 [ 0, %for.end7 ], [ %inc26, %for.inc25 ]
%cmp10 = icmp slt i64 %i8.0, %m
br i1 %cmp10, label %for.body12, label %for.end27
for.body12: ; preds = %for.cond9
br label %for.cond14
for.cond14: ; preds = %for.inc22, %for.body12
%j13.0 = phi i64 [ 0, %for.body12 ], [ %inc23, %for.inc22 ]
%cmp15 = icmp slt i64 %j13.0, %p
br i1 %cmp15, label %for.body17, label %for.end24
for.body17: ; preds = %for.cond14
%add18 = add nsw i64 %i8.0, %j13.0
%conv19 = sitofp i64 %add18 to float
%arrayidx21 = getelementptr inbounds [20 x float], ptr %B, i64 %i8.0, i64 %j13.0
store float %conv19, ptr %arrayidx21, align 4
br label %for.inc22
for.inc22: ; preds = %for.body17
%inc23 = add nsw i64 %j13.0, 1
br label %for.cond14
for.end24: ; preds = %for.cond14
br label %for.inc25
for.inc25: ; preds = %for.end24
%inc26 = add nsw i64 %i8.0, 1
br label %for.cond9
for.end27: ; preds = %for.cond9
ret void
}
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