forked from OSchip/llvm-project
45 lines
1.2 KiB
LLVM
45 lines
1.2 KiB
LLVM
; RUN: opt %loadPolly -polly-scops -analyze < %s | FileCheck %s
|
|
|
|
; void f(int a[], int N, unsigned P) {
|
|
; int i;
|
|
; for (i = 0; i < N; ++i)
|
|
; if (P > 42)
|
|
; a[i] = i;
|
|
; }
|
|
|
|
; The assumed context is the universe because the "signed-unsigned assumption"
|
|
; [P, N] -> { : N > 0 and P >= 0 }
|
|
; is implied by the execution domain. Thus if something is executed this
|
|
; assumption will hold.
|
|
|
|
; CHECK: Assumed Context:
|
|
; CHECK-NEXT: [P, N] -> { : }
|
|
;
|
|
; CHECK: Domain :=
|
|
; CHECK-NEXT: [P, N] -> { Stmt_store[i0] : P >= 42 and 0 <= i0 < N };
|
|
|
|
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
|
|
|
|
define void @f(i64* nocapture %a, i64 %N, i64 %P) nounwind {
|
|
entry:
|
|
br label %bb
|
|
|
|
bb:
|
|
%i = phi i64 [ 0, %entry ], [ %i.inc, %bb.backedge ]
|
|
%brcond = icmp uge i64 %P, 42
|
|
br i1 %brcond, label %store, label %bb.backedge
|
|
|
|
store:
|
|
%scevgep = getelementptr inbounds i64, i64* %a, i64 %i
|
|
store i64 %i, i64* %scevgep
|
|
br label %bb.backedge
|
|
|
|
bb.backedge:
|
|
%i.inc = add nsw i64 %i, 1
|
|
%exitcond = icmp eq i64 %i.inc, %N
|
|
br i1 %exitcond, label %return, label %bb
|
|
|
|
return:
|
|
ret void
|
|
}
|