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Diffstat (limited to 'llvm/test/Transforms/LoopInterchange/currentLimitation.ll')
-rw-r--r-- | llvm/test/Transforms/LoopInterchange/currentLimitation.ll | 97 |
1 files changed, 0 insertions, 97 deletions
diff --git a/llvm/test/Transforms/LoopInterchange/currentLimitation.ll b/llvm/test/Transforms/LoopInterchange/currentLimitation.ll deleted file mode 100644 index 1a9d42dbb9a..00000000000 --- a/llvm/test/Transforms/LoopInterchange/currentLimitation.ll +++ /dev/null @@ -1,97 +0,0 @@ -; RUN: opt < %s -basicaa -loop-interchange -pass-remarks-missed='loop-interchange' \ -; RUN: -pass-remarks-output=%t -verify-loop-info -verify-dom-info -S | FileCheck -check-prefix=IR %s -; RUN: FileCheck --input-file=%t %s - -target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" -target triple = "x86_64-unknown-linux-gnu" - -@A = common global [100 x [100 x i32]] zeroinitializer -@B = common global [100 x [100 x [100 x i32]]] zeroinitializer -@C = common global [100 x [100 x i64]] zeroinitializer - -;;--------------------------------------Test case 01------------------------------------ -;; [FIXME] This loop though valid is currently not interchanged due to the limitation that we cannot split the inner loop latch due to multiple use of inner induction -;; variable.(used to increment the loop counter and to access A[j+1][i+1] -;; for(int i=0;i<N-1;i++) -;; for(int j=1;j<N-1;j++) -;; A[j+1][i+1] = A[j+1][i+1] + k; - -; FIXME: Currently fails because of DA changes. -; IR-LABEL: @interchange_01 -; IR-NOT: split - -; CHECK: Name: Dependence -; CHECK-NEXT: Function: interchange_01 - -define void @interchange_01(i32 %k, i32 %N) { - entry: - %sub = add nsw i32 %N, -1 - %cmp26 = icmp sgt i32 %N, 1 - br i1 %cmp26, label %for.cond1.preheader.lr.ph, label %for.end17 - - for.cond1.preheader.lr.ph: - %cmp324 = icmp sgt i32 %sub, 1 - %0 = add i32 %N, -2 - %1 = sext i32 %sub to i64 - br label %for.cond1.preheader - - for.cond.loopexit: - %cmp = icmp slt i64 %indvars.iv.next29, %1 - br i1 %cmp, label %for.cond1.preheader, label %for.end17 - - for.cond1.preheader: - %indvars.iv28 = phi i64 [ 0, %for.cond1.preheader.lr.ph ], [ %indvars.iv.next29, %for.cond.loopexit ] - %indvars.iv.next29 = add nuw nsw i64 %indvars.iv28, 1 - br i1 %cmp324, label %for.body4, label %for.cond.loopexit - - for.body4: - %indvars.iv = phi i64 [ %indvars.iv.next, %for.body4 ], [ 1, %for.cond1.preheader ] - %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 - %arrayidx7 = getelementptr inbounds [100 x [100 x i32]], [100 x [100 x i32]]* @A, i64 0, i64 %indvars.iv.next, i64 %indvars.iv.next29 - %2 = load i32, i32* %arrayidx7 - %add8 = add nsw i32 %2, %k - store i32 %add8, i32* %arrayidx7 - %lftr.wideiv = trunc i64 %indvars.iv to i32 - %exitcond = icmp eq i32 %lftr.wideiv, %0 - br i1 %exitcond, label %for.cond.loopexit, label %for.body4 - - for.end17: - ret void -} - -; When currently cannot interchange this loop, because transform currently -; expects the latches to be the exiting blocks too. - -; IR-LABEL: @interchange_02 -; IR-NOT: split -; -; CHECK: Name: ExitingNotLatch -; CHECK-NEXT: Function: interchange_02 -define void @interchange_02(i64 %k, i64 %N) { -entry: - br label %for1.header - -for1.header: - %j23 = phi i64 [ 0, %entry ], [ %j.next24, %for1.inc10 ] - br label %for2 - -for2: - %j = phi i64 [ %j.next, %latch ], [ 0, %for1.header ] - %arrayidx5 = getelementptr inbounds [100 x [100 x i64]], [100 x [100 x i64]]* @C, i64 0, i64 %j, i64 %j23 - %lv = load i64, i64* %arrayidx5 - %add = add nsw i64 %lv, %k - store i64 %add, i64* %arrayidx5 - %exitcond = icmp eq i64 %j, 99 - br i1 %exitcond, label %for1.inc10, label %latch -latch: - %j.next = add nuw nsw i64 %j, 1 - br label %for2 - -for1.inc10: - %j.next24 = add nuw nsw i64 %j23, 1 - %exitcond26 = icmp eq i64 %j23, 99 - br i1 %exitcond26, label %for.end12, label %for1.header - -for.end12: - ret void -} |