diff options
Diffstat (limited to 'llvm/test/Transforms/IndVarsSimplify/exit_value_tests.ll')
| -rw-r--r-- | llvm/test/Transforms/IndVarsSimplify/exit_value_tests.ll | 114 |
1 files changed, 0 insertions, 114 deletions
diff --git a/llvm/test/Transforms/IndVarsSimplify/exit_value_tests.ll b/llvm/test/Transforms/IndVarsSimplify/exit_value_tests.ll deleted file mode 100644 index b39f40f4866..00000000000 --- a/llvm/test/Transforms/IndVarsSimplify/exit_value_tests.ll +++ /dev/null @@ -1,114 +0,0 @@ -; Test that we can evaluate the exit values of various expression types. Since -; these loops all have predictable exit values we can replace the use outside -; of the loop with a closed-form computation, making the loop dead. -; -; RUN: llvm-as < %s | opt -indvars -loop-deletion -simplifycfg | \ -; RUN: llvm-dis | not grep br - -define i32 @polynomial_constant() { -; <label>:0 - br label %Loop - -Loop: ; preds = %Loop, %0 - %A1 = phi i32 [ 0, %0 ], [ %A2, %Loop ] ; <i32> [#uses=3] - %B1 = phi i32 [ 0, %0 ], [ %B2, %Loop ] ; <i32> [#uses=1] - %A2 = add i32 %A1, 1 ; <i32> [#uses=1] - %B2 = add i32 %B1, %A1 ; <i32> [#uses=2] - %C = icmp eq i32 %A1, 1000 ; <i1> [#uses=1] - br i1 %C, label %Out, label %Loop - -Out: ; preds = %Loop - ret i32 %B2 -} - -define i32 @NSquare(i32 %N) { -; <label>:0 - br label %Loop - -Loop: ; preds = %Loop, %0 - %X = phi i32 [ 0, %0 ], [ %X2, %Loop ] ; <i32> [#uses=4] - %X2 = add i32 %X, 1 ; <i32> [#uses=1] - %c = icmp eq i32 %X, %N ; <i1> [#uses=1] - br i1 %c, label %Out, label %Loop - -Out: ; preds = %Loop - %Y = mul i32 %X, %X ; <i32> [#uses=1] - ret i32 %Y -} - -define i32 @NSquareOver2(i32 %N) { -; <label>:0 - br label %Loop - -Loop: ; preds = %Loop, %0 - %X = phi i32 [ 0, %0 ], [ %X2, %Loop ] ; <i32> [#uses=3] - %Y = phi i32 [ 15, %0 ], [ %Y2, %Loop ] ; <i32> [#uses=1] - %Y2 = add i32 %Y, %X ; <i32> [#uses=2] - %X2 = add i32 %X, 1 ; <i32> [#uses=1] - %c = icmp eq i32 %X, %N ; <i1> [#uses=1] - br i1 %c, label %Out, label %Loop - -Out: ; preds = %Loop - ret i32 %Y2 -} - -define i32 @strength_reduced() { -; <label>:0 - br label %Loop - -Loop: ; preds = %Loop, %0 - %A1 = phi i32 [ 0, %0 ], [ %A2, %Loop ] ; <i32> [#uses=3] - %B1 = phi i32 [ 0, %0 ], [ %B2, %Loop ] ; <i32> [#uses=1] - %A2 = add i32 %A1, 1 ; <i32> [#uses=1] - %B2 = add i32 %B1, %A1 ; <i32> [#uses=2] - %C = icmp eq i32 %A1, 1000 ; <i1> [#uses=1] - br i1 %C, label %Out, label %Loop - -Out: ; preds = %Loop - ret i32 %B2 -} - -define i32 @chrec_equals() { -entry: - br label %no_exit - -no_exit: ; preds = %no_exit, %entry - %i0 = phi i32 [ 0, %entry ], [ %i1, %no_exit ] ; <i32> [#uses=3] - %ISq = mul i32 %i0, %i0 ; <i32> [#uses=1] - %i1 = add i32 %i0, 1 ; <i32> [#uses=2] - %tmp.1 = icmp ne i32 %ISq, 10000 ; <i1> [#uses=1] - br i1 %tmp.1, label %no_exit, label %loopexit - -loopexit: ; preds = %no_exit - ret i32 %i1 -} - -define i16 @cast_chrec_test() { -; <label>:0 - br label %Loop - -Loop: ; preds = %Loop, %0 - %A1 = phi i32 [ 0, %0 ], [ %A2, %Loop ] ; <i32> [#uses=2] - %B1 = trunc i32 %A1 to i16 ; <i16> [#uses=2] - %A2 = add i32 %A1, 1 ; <i32> [#uses=1] - %C = icmp eq i16 %B1, 1000 ; <i1> [#uses=1] - br i1 %C, label %Out, label %Loop - -Out: ; preds = %Loop - ret i16 %B1 -} - -define i32 @linear_div_fold() { -entry: - br label %loop - -loop: ; preds = %loop, %entry - %i = phi i32 [ 4, %entry ], [ %i.next, %loop ] ; <i32> [#uses=3] - %i.next = add i32 %i, 8 ; <i32> [#uses=1] - %RV = udiv i32 %i, 2 ; <i32> [#uses=1] - %c = icmp ne i32 %i, 68 ; <i1> [#uses=1] - br i1 %c, label %loop, label %loopexit - -loopexit: ; preds = %loop - ret i32 %RV -} |

