forked from OSchip/llvm-project
39 lines
1.1 KiB
LLVM
39 lines
1.1 KiB
LLVM
; RUN: opt %loadPolly -polly-detect-unprofitable -polly-allow-non-scev-backedge-taken-count -polly-scops -analyze < %s | FileCheck %s
|
|
;
|
|
; CHECK: [M, N] -> { Stmt_while_body[i0] : i0 >= 1 and 4i0 <= -M + N; Stmt_while_body[0] }
|
|
;
|
|
; void f(int *A, int N, int M) {
|
|
; int i = 0;
|
|
; while (M <= N) {
|
|
; A[i++] = 1;
|
|
; M += 4;
|
|
; }
|
|
; }
|
|
;
|
|
target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
|
|
|
|
define void @f(i32* nocapture %A, i32 %N, i32 %M) {
|
|
entry:
|
|
%cmp3 = icmp sgt i32 %M, %N
|
|
br i1 %cmp3, label %while.end, label %while.body.preheader
|
|
|
|
while.body.preheader:
|
|
br label %while.body
|
|
|
|
while.body:
|
|
%i.05 = phi i32 [ %inc, %while.body ], [ 0, %while.body.preheader ]
|
|
%M.addr.04 = phi i32 [ %add, %while.body ], [ %M, %while.body.preheader ]
|
|
%inc = add nuw nsw i32 %i.05, 1
|
|
%arrayidx = getelementptr inbounds i32, i32* %A, i32 %i.05
|
|
store i32 1, i32* %arrayidx, align 4
|
|
%add = add nsw i32 %M.addr.04, 4
|
|
%cmp = icmp sgt i32 %add, %N
|
|
br i1 %cmp, label %while.end.loopexit, label %while.body
|
|
|
|
while.end.loopexit:
|
|
br label %while.end
|
|
|
|
while.end:
|
|
ret void
|
|
}
|