forked from OSchip/llvm-project
53 lines
2.3 KiB
LLVM
53 lines
2.3 KiB
LLVM
; RUN: opt %loadPolly %defaultOpts -polly-analyze-ir -analyze %s | FileCheck %s
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; RUN: opt %loadPolly %defaultOpts -polly-analyze-ir -analyze %s | FileCheck %s
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;void f(long a[], long N, long M) {
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; long i, j, k;
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; for (j = 0; j < M; ++j)
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; ((long*)j)[(long)a] = j;
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; for (j = 0; j < N; ++j)
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; a[j] = (char)(M + j);
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;}
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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"
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target triple = "x86_64-unknown-linux-gnu"
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define void @f(i64* %a, i64 %N, i64 %M) nounwind {
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entry:
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%0 = icmp sgt i64 %M, 0 ; <i1> [#uses=1]
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br i1 %0, label %bb.nph8, label %bb4.loopexit
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bb.nph8: ; preds = %entry
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%1 = ptrtoint i64* %a to i64 ; <i64> [#uses=1]
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br label %bb
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bb: ; preds = %bb, %bb.nph8
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%2 = phi i64 [ 0, %bb.nph8 ], [ %5, %bb ] ; <i64> [#uses=3]
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%3 = inttoptr i64 %2 to i64* ; <i64*> [#uses=1]
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%4 = getelementptr inbounds i64* %3, i64 %1 ; <i64*> [#uses=1]
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store i64 %2, i64* %4, align 8
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%5 = add nsw i64 %2, 1 ; <i64> [#uses=2]
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%exitcond10 = icmp eq i64 %5, %M ; <i1> [#uses=1]
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br i1 %exitcond10, label %bb4.loopexit, label %bb
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bb3: ; preds = %bb4.loopexit, %bb3
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%j.16 = phi i64 [ 0, %bb4.loopexit ], [ %7, %bb3 ] ; <i64> [#uses=3]
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%scevgep = getelementptr i64* %a, i64 %j.16 ; <i64*> [#uses=1]
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%tmp = add i64 %j.16, %M ; <i64> [#uses=1]
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%tmp9 = trunc i64 %tmp to i8 ; <i8> [#uses=1]
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%6 = sext i8 %tmp9 to i64 ; <i64> [#uses=1]
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store i64 %6, i64* %scevgep, align 8
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%7 = add nsw i64 %j.16, 1 ; <i64> [#uses=2]
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%exitcond = icmp eq i64 %7, %N ; <i1> [#uses=1]
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br i1 %exitcond, label %return, label %bb3
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bb4.loopexit: ; preds = %bb, %entry
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%8 = icmp sgt i64 %N, 0 ; <i1> [#uses=1]
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br i1 %8, label %bb3, label %return
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return: ; preds = %bb4.loopexit, %bb3
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ret void
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}
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; CHECK: Scop: bb4.loopexit => return Parameters: (%N, ), Max Loop Depth: 1
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