You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
43 lines
1.3 KiB
43 lines
1.3 KiB
; RUN: opt %loadPolly -polly-scops -analyze < %s | FileCheck %s
|
|
;
|
|
; void f(int *A, unsigned char N) {
|
|
; for (unsigned i = 0; i <= N / -128; i++)
|
|
; A[i]++;
|
|
; }
|
|
;
|
|
; CHECK: Assumed Context:
|
|
; CHECK-NEXT: [N] -> { : }
|
|
; CHECK-NEXT: Invalid Context:
|
|
; CHECK-NEXT: [N] -> { : N < 0 }
|
|
;
|
|
; CHECK: Domain :=
|
|
; CHECK-NEXT: [N] -> { Stmt_for_body[0] : N >= 0 };
|
|
;
|
|
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
|
|
|
|
define void @f(i32* %A, i8 %N) {
|
|
entry:
|
|
%tmp = udiv i8 %N, -128
|
|
br label %for.cond
|
|
|
|
for.cond: ; preds = %for.inc, %entry
|
|
%indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ]
|
|
%lftr.wideiv = trunc i64 %indvars.iv to i8
|
|
%exitcond = icmp sle i8 %lftr.wideiv, %tmp
|
|
br i1 %exitcond, label %for.body, label %for.end
|
|
|
|
for.body: ; preds = %for.cond
|
|
%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 %for.inc
|
|
|
|
for.inc: ; preds = %for.body
|
|
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
|
|
br label %for.cond
|
|
|
|
for.end: ; preds = %for.cond
|
|
ret void
|
|
}
|