diff options
Diffstat (limited to 'llvm/test/Transforms/LoopInterchange/interchange-no-deps.ll')
-rw-r--r-- | llvm/test/Transforms/LoopInterchange/interchange-no-deps.ll | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/llvm/test/Transforms/LoopInterchange/interchange-no-deps.ll b/llvm/test/Transforms/LoopInterchange/interchange-no-deps.ll deleted file mode 100644 index 5423648ce14..00000000000 --- a/llvm/test/Transforms/LoopInterchange/interchange-no-deps.ll +++ /dev/null @@ -1,95 +0,0 @@ -; REQUIRES: asserts -; RUN: opt < %s -loop-interchange -simplifycfg -pass-remarks-output=%t \ -; RUN: -pass-remarks=loop-interchange -pass-remarks-missed=loop-interchange -stats -S 2>&1 \ -; RUN: | FileCheck -check-prefix=STATS %s -; RUN: FileCheck -input-file %t %s - - -; no_deps_interchange just accesses a single nested array and can be interchange. -; CHECK: Name: Interchanged -; CHECK-NEXT: Function: no_deps_interchange -define i32 @no_deps_interchange([1024 x i32]* nocapture %Arr) local_unnamed_addr #0 { -entry: - br label %for1.header - -for1.header: ; preds = %entry, %for1.inc - %indvars.iv19 = phi i64 [ 0, %entry ], [ %indvars.iv.next20, %for1.inc ] - br label %for2 - -for2: ; preds = %for1.header, %for2 - %indvars.iv = phi i64 [ 0, %for1.header ], [ %indvars.iv.next, %for2 ] - %arrayidx6 = getelementptr inbounds [1024 x i32], [1024 x i32]* %Arr, i64 %indvars.iv, i64 %indvars.iv19 - store i32 0, i32* %arrayidx6, align 4 - %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 - %exitcond = icmp ne i64 %indvars.iv.next, 1024 - br i1 %exitcond, label %for2, label %for1.inc - -for1.inc: - %indvars.iv.next20 = add nuw nsw i64 %indvars.iv19, 1 - %exitcond21 = icmp ne i64 %indvars.iv.next20, 1024 - br i1 %exitcond21, label %for1.header, label %exit - -exit: ; preds = %for1.inc - ret i32 0 - -} - -; Only the inner loop induction variable is used for memory accesses. -; Interchanging is not beneficial. -; CHECK: Name: InterchangeNotProfitable -; CHECK-NEXT: Function: no_bad_order -define i32 @no_bad_order(i32* %Arr) { -entry: - br label %for1.header - -for1.header: ; preds = %entry, %for1.inc - %indvars.iv19 = phi i64 [ 0, %entry ], [ %indvars.iv.next20, %for1.inc ] - br label %for2 - -for2: ; preds = %for1.header, %for2 - %indvars.iv = phi i64 [ 0, %for1.header ], [ %indvars.iv.next, %for2 ] - %arrayidx6 = getelementptr inbounds i32, i32* %Arr, i64 %indvars.iv - store i32 0, i32* %arrayidx6, align 4 - %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 - %exitcond = icmp ne i64 %indvars.iv.next, 1024 - br i1 %exitcond, label %for2, label %for1.inc - -for1.inc: - %indvars.iv.next20 = add nuw nsw i64 %indvars.iv19, 1 - %exitcond21 = icmp ne i64 %indvars.iv.next20, 1024 - br i1 %exitcond21, label %for1.header, label %exit - -exit: ; preds = %for1.inc - ret i32 0 -} - -; No memory access using any induction variables, interchanging not beneficial. -; CHECK: Name: InterchangeNotProfitable -; CHECK-NEXT: Function: no_mem_instrs -define i32 @no_mem_instrs(i64* %ptr) { -entry: - br label %for1.header - -for1.header: ; preds = %entry, %for1.inc - %indvars.iv19 = phi i64 [ 0, %entry ], [ %indvars.iv.next20, %for1.inc ] - br label %for2 - -for2: ; preds = %for1.header, %for2 - %indvars.iv = phi i64 [ 0, %for1.header ], [ %indvars.iv.next, %for2 ] - store i64 %indvars.iv, i64* %ptr, align 4 - %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 - %exitcond = icmp ne i64 %indvars.iv.next, 1024 - br i1 %exitcond, label %for2, label %for1.inc - -for1.inc: - %indvars.iv.next20 = add nuw nsw i64 %indvars.iv19, 1 - %exitcond21 = icmp ne i64 %indvars.iv.next20, 1024 - br i1 %exitcond21, label %for1.header, label %exit - -exit: ; preds = %for1.inc - ret i32 0 -} - - -; Check stats, we interchanged 1 out of 3 loops. -; STATS: 1 loop-interchange - Number of loops interchanged |