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
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;
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; CHECK: [M, N] -> { Stmt_while_body[i0] : i0 >= 0 and 4i0 <= -M + N; Stmt_while_body[0] : N <= -1 + M }
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;
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; void f(int *A, int N, int M) {
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; int i = 0;
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; while (M <= N) {
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; A[i++] = 1;
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; M += 4;
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; }
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; }
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;
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target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
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define void @f(i32* nocapture %A, i32 %N, i32 %M) {
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entry:
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%cmp3 = icmp sgt i32 %M, %N
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br i1 %cmp3, label %while.end, label %while.body.preheader
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while.body.preheader:
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br label %while.body
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while.body:
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%i.05 = phi i32 [ %inc, %while.body ], [ 0, %while.body.preheader ]
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%M.addr.04 = phi i32 [ %add, %while.body ], [ %M, %while.body.preheader ]
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%inc = add nuw nsw i32 %i.05, 1
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%arrayidx = getelementptr inbounds i32, i32* %A, i32 %i.05
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store i32 1, i32* %arrayidx, align 4
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%add = add nsw i32 %M.addr.04, 4
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%cmp = icmp sgt i32 %add, %N
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br i1 %cmp, label %while.end.loopexit, label %while.body
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while.end.loopexit:
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br label %while.end
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while.end:
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ret void
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}
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