forked from OSchip/llvm-project
43 lines
1.3 KiB
LLVM
43 lines
1.3 KiB
LLVM
; RUN: opt %loadPolly -polly-scops -analyze < %s | FileCheck %s
|
|
;
|
|
; void f(int *A, unsigned N) {
|
|
; for (unsigned i = 0; i < N / 2; 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[i0] : i0 >= 0 and 2i0 <= -2 + N };
|
|
;
|
|
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
|
|
|
|
define void @f(i32* %A, i32 %N) {
|
|
entry:
|
|
%tmp = lshr i32 %N, 1
|
|
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 i32
|
|
%exitcond = icmp ne i32 %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
|
|
%tmp1 = load i32, i32* %arrayidx, align 4
|
|
%inc = add nsw i32 %tmp1, 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
|
|
}
|