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Diffstat (limited to 'llvm/test/Transforms/LoopStrengthReduce/X86/sibling-loops.ll')
| -rw-r--r-- | llvm/test/Transforms/LoopStrengthReduce/X86/sibling-loops.ll | 97 |
1 files changed, 0 insertions, 97 deletions
diff --git a/llvm/test/Transforms/LoopStrengthReduce/X86/sibling-loops.ll b/llvm/test/Transforms/LoopStrengthReduce/X86/sibling-loops.ll deleted file mode 100644 index a69d6adc0f0..00000000000 --- a/llvm/test/Transforms/LoopStrengthReduce/X86/sibling-loops.ll +++ /dev/null @@ -1,97 +0,0 @@ -; RUN: opt -loop-reduce -S < %s | FileCheck %s -; We find it is very bad to allow LSR formula containing SCEVAddRecExpr Reg -; from siblings of current loop. When one loop is LSR optimized, it can -; insert lsr.iv for other sibling loops, which sometimes leads to many extra -; lsr.iv inserted for loops. - -target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" - -@cond = common local_unnamed_addr global i64 0, align 8 - -; Check there is no extra lsr.iv generated in foo. -; CHECK-LABEL: @foo( -; CHECK-NOT: lsr.iv{{[0-9]+}} = -; -define void @foo(i64 %N) local_unnamed_addr { -entry: - br label %do.body - -do.body: ; preds = %do.body, %entry - %i.0 = phi i64 [ 0, %entry ], [ %inc, %do.body ] - tail call void @goo(i64 %i.0, i64 %i.0) - %inc = add nuw nsw i64 %i.0, 1 - %t0 = load i64, i64* @cond, align 8 - %tobool = icmp eq i64 %t0, 0 - br i1 %tobool, label %do.body2.preheader, label %do.body - -do.body2.preheader: ; preds = %do.body - br label %do.body2 - -do.body2: ; preds = %do.body2.preheader, %do.body2 - %i.1 = phi i64 [ %inc3, %do.body2 ], [ 0, %do.body2.preheader ] - %j.1 = phi i64 [ %inc4, %do.body2 ], [ %inc, %do.body2.preheader ] - tail call void @goo(i64 %i.1, i64 %j.1) - %inc3 = add nuw nsw i64 %i.1, 1 - %inc4 = add nsw i64 %j.1, 1 - %t1 = load i64, i64* @cond, align 8 - %tobool6 = icmp eq i64 %t1, 0 - br i1 %tobool6, label %do.body8.preheader, label %do.body2 - -do.body8.preheader: ; preds = %do.body2 - br label %do.body8 - -do.body8: ; preds = %do.body8.preheader, %do.body8 - %i.2 = phi i64 [ %inc9, %do.body8 ], [ 0, %do.body8.preheader ] - %j.2 = phi i64 [ %inc10, %do.body8 ], [ %inc4, %do.body8.preheader ] - tail call void @goo(i64 %i.2, i64 %j.2) - %inc9 = add nuw nsw i64 %i.2, 1 - %inc10 = add nsw i64 %j.2, 1 - %t2 = load i64, i64* @cond, align 8 - %tobool12 = icmp eq i64 %t2, 0 - br i1 %tobool12, label %do.body14.preheader, label %do.body8 - -do.body14.preheader: ; preds = %do.body8 - br label %do.body14 - -do.body14: ; preds = %do.body14.preheader, %do.body14 - %i.3 = phi i64 [ %inc15, %do.body14 ], [ 0, %do.body14.preheader ] - %j.3 = phi i64 [ %inc16, %do.body14 ], [ %inc10, %do.body14.preheader ] - tail call void @goo(i64 %i.3, i64 %j.3) - %inc15 = add nuw nsw i64 %i.3, 1 - %inc16 = add nsw i64 %j.3, 1 - %t3 = load i64, i64* @cond, align 8 - %tobool18 = icmp eq i64 %t3, 0 - br i1 %tobool18, label %do.body20.preheader, label %do.body14 - -do.body20.preheader: ; preds = %do.body14 - br label %do.body20 - -do.body20: ; preds = %do.body20.preheader, %do.body20 - %i.4 = phi i64 [ %inc21, %do.body20 ], [ 0, %do.body20.preheader ] - %j.4 = phi i64 [ %inc22, %do.body20 ], [ %inc16, %do.body20.preheader ] - tail call void @goo(i64 %i.4, i64 %j.4) - %inc21 = add nuw nsw i64 %i.4, 1 - %inc22 = add nsw i64 %j.4, 1 - %t4 = load i64, i64* @cond, align 8 - %tobool24 = icmp eq i64 %t4, 0 - br i1 %tobool24, label %do.body26.preheader, label %do.body20 - -do.body26.preheader: ; preds = %do.body20 - br label %do.body26 - -do.body26: ; preds = %do.body26.preheader, %do.body26 - %i.5 = phi i64 [ %inc27, %do.body26 ], [ 0, %do.body26.preheader ] - %j.5 = phi i64 [ %inc28, %do.body26 ], [ %inc22, %do.body26.preheader ] - tail call void @goo(i64 %i.5, i64 %j.5) - %inc27 = add nuw nsw i64 %i.5, 1 - %inc28 = add nsw i64 %j.5, 1 - %t5 = load i64, i64* @cond, align 8 - %tobool30 = icmp eq i64 %t5, 0 - br i1 %tobool30, label %do.end31, label %do.body26 - -do.end31: ; preds = %do.body26 - ret void -} - -declare void @goo(i64, i64) local_unnamed_addr - |
