forked from OSchip/llvm-project
57 lines
2.7 KiB
LLVM
57 lines
2.7 KiB
LLVM
; RUN: opt %loadPolly %defaultOpts -polly-analyze-ir -analyze %s | FileCheck %s -check-prefix=INDVAR
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; RUN: opt %loadPolly %defaultOpts -polly-analyze-ir -analyze %s | FileCheck %s
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;void f(long a[][128], long N, long M) {
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; long i, j;
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; for (j = 0; j < rnd(); ++j)
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; for (i = 0; i < N; ++i)
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; a[i][j] = 0;
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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([128 x i64]* nocapture %a, i64 %N, i64 %M) nounwind {
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entry:
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%0 = tail call i64 (...)* @rnd() nounwind ; <i64> [#uses=1]
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%1 = icmp sgt i64 %0, 0 ; <i1> [#uses=1]
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br i1 %1, label %bb.nph8, label %return
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bb.nph8: ; preds = %entry
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%2 = icmp sgt i64 %N, 0 ; <i1> [#uses=1]
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br i1 %2, label %bb2.preheader.us, label %bb2.preheader
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bb2.preheader.us: ; preds = %bb2.bb3_crit_edge.us, %bb.nph8
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%3 = phi i64 [ 0, %bb.nph8 ], [ %tmp, %bb2.bb3_crit_edge.us ] ; <i64> [#uses=2]
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%tmp = add i64 %3, 1 ; <i64> [#uses=2]
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br label %bb1.us
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bb1.us: ; preds = %bb1.us, %bb2.preheader.us
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%i.06.us = phi i64 [ 0, %bb2.preheader.us ], [ %4, %bb1.us ] ; <i64> [#uses=2]
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%scevgep = getelementptr [128 x i64]* %a, i64 %i.06.us, i64 %3 ; <i64*> [#uses=1]
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store i64 0, i64* %scevgep, align 8
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%4 = add nsw i64 %i.06.us, 1 ; <i64> [#uses=2]
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%exitcond = icmp eq i64 %4, %N ; <i1> [#uses=1]
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br i1 %exitcond, label %bb2.bb3_crit_edge.us, label %bb1.us
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bb2.bb3_crit_edge.us: ; preds = %bb1.us
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%5 = tail call i64 (...)* @rnd() nounwind ; <i64> [#uses=1]
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%6 = icmp sgt i64 %5, %tmp ; <i1> [#uses=1]
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br i1 %6, label %bb2.preheader.us, label %return
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bb2.preheader: ; preds = %bb2.preheader, %bb.nph8
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%j.07 = phi i64 [ %tmp9, %bb2.preheader ], [ 0, %bb.nph8 ] ; <i64> [#uses=1]
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%tmp9 = add i64 %j.07, 1 ; <i64> [#uses=2]
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%7 = tail call i64 (...)* @rnd() nounwind ; <i64> [#uses=1]
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%8 = icmp sgt i64 %7, %tmp9 ; <i1> [#uses=1]
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br i1 %8, label %bb2.preheader, label %return
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return: ; preds = %bb2.preheader, %bb2.bb3_crit_edge.us, %entry
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ret void
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}
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declare i64 @rnd(...)
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; INDVAR: Scop: bb1.us => bb2.bb3_crit_edge.us Parameters: (%N, {0,+,1}<%bb2.preheader.us>, ), Max Loop Depth: 1
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; CHECK: Scop: bb1.us => bb2.bb3_crit_edge.us Parameters: (%N, {0,+,1}<%bb2.preheader.us>, ), Max Loop Depth: 1
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