diff options
Diffstat (limited to 'llvm/test/Transforms/CodeGenPrepare/skip-merging-case-block.ll')
-rw-r--r-- | llvm/test/Transforms/CodeGenPrepare/skip-merging-case-block.ll | 144 |
1 files changed, 0 insertions, 144 deletions
diff --git a/llvm/test/Transforms/CodeGenPrepare/skip-merging-case-block.ll b/llvm/test/Transforms/CodeGenPrepare/skip-merging-case-block.ll deleted file mode 100644 index 3b14aed6eb0..00000000000 --- a/llvm/test/Transforms/CodeGenPrepare/skip-merging-case-block.ll +++ /dev/null @@ -1,144 +0,0 @@ -; RUN: opt -codegenprepare < %s -mtriple=aarch64-none-linux-gnu -S | FileCheck %s - -target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128" -target triple = "aarch64--linux-gnu" - -; Expect to skip merging two empty blocks (sw.bb and sw.bb2) into sw.epilog -; as both of them are unlikely executed. -define i32 @f_switch(i32 %c) { -; CHECK-LABEL: @f_switch -; CHECK-LABEL: entry: -; CHECK: i32 10, label %sw.bb -; CHECK: i32 20, label %sw.bb2 -entry: - switch i32 %c, label %sw.default [ - i32 10, label %sw.bb - i32 20, label %sw.bb2 - i32 30, label %sw.bb3 - i32 40, label %sw.bb4 - ], !prof !0 - -sw.bb: ; preds = %entry - br label %sw.epilog - -sw.bb2: ; preds = %entry - br label %sw.epilog - -sw.bb3: ; preds = %entry - call void bitcast (void (...)* @callcase3 to void ()*)() - br label %sw.epilog - -sw.bb4: ; preds = %entry - call void bitcast (void (...)* @callcase4 to void ()*)() - br label %sw.epilog - -sw.default: ; preds = %entry - call void bitcast (void (...)* @calldefault to void ()*)() - br label %sw.epilog - -; CHECK-LABEL: sw.epilog: -; CHECK: %fp.0 = phi void (...)* [ @FD, %sw.default ], [ @F4, %sw.bb4 ], [ @F3, %sw.bb3 ], [ @F2, %sw.bb2 ], [ @F1, %sw.bb ] -sw.epilog: ; preds = %sw.default, %sw.bb3, %sw.bb2, %sw.bb - %fp.0 = phi void (...)* [ @FD, %sw.default ], [ @F4, %sw.bb4 ], [ @F3, %sw.bb3 ], [ @F2, %sw.bb2 ], [ @F1, %sw.bb ] - %callee.knr.cast = bitcast void (...)* %fp.0 to void ()* - call void %callee.knr.cast() - ret i32 0 -} - -; Expect not to merge sw.bb2 because of the conflict in the incoming value from -; sw.bb which is already merged. -define i32 @f_switch2(i32 %c) { -; CHECK-LABEL: @f_switch2 -; CHECK-LABEL: entry: -; CHECK: i32 10, label %sw.epilog -; CHECK: i32 20, label %sw.bb2 -entry: - switch i32 %c, label %sw.default [ - i32 10, label %sw.bb - i32 20, label %sw.bb2 - i32 30, label %sw.bb3 - i32 40, label %sw.bb4 - ], !prof !1 - -sw.bb: ; preds = %entry - br label %sw.epilog - -sw.bb2: ; preds = %entry - br label %sw.epilog - -sw.bb3: ; preds = %entry - call void bitcast (void (...)* @callcase3 to void ()*)() - br label %sw.epilog - -sw.bb4: ; preds = %entry - call void bitcast (void (...)* @callcase4 to void ()*)() - br label %sw.epilog - -sw.default: ; preds = %entry - call void bitcast (void (...)* @calldefault to void ()*)() - br label %sw.epilog - -; CHECK-LABEL: sw.epilog: -; CHECK: %fp.0 = phi void (...)* [ @FD, %sw.default ], [ @F4, %sw.bb4 ], [ @F3, %sw.bb3 ], [ @F2, %sw.bb2 ], [ @F1, %entry ] -sw.epilog: ; preds = %sw.default, %sw.bb3, %sw.bb2, %sw.bb - %fp.0 = phi void (...)* [ @FD, %sw.default ], [ @F4, %sw.bb4 ], [ @F3, %sw.bb3 ], [ @F2, %sw.bb2 ], [ @F1, %sw.bb ] - %callee.knr.cast = bitcast void (...)* %fp.0 to void ()* - call void %callee.knr.cast() - ret i32 0 -} - -; Multiple empty blocks should be considered together if all incoming values -; from them are same. We expect to merge both empty blocks (sw.bb and sw.bb2) -; because the sum of frequencies are higer than the threshold. -define i32 @f_switch3(i32 %c) { -; CHECK-LABEL: @f_switch3 -; CHECK-LABEL: entry: -; CHECK: i32 10, label %sw.epilog -; CHECK: i32 20, label %sw.epilog -entry: - switch i32 %c, label %sw.default [ - i32 10, label %sw.bb - i32 20, label %sw.bb2 - i32 30, label %sw.bb3 - i32 40, label %sw.bb4 - ], !prof !2 - -sw.bb: ; preds = %entry - br label %sw.epilog - -sw.bb2: ; preds = %entry - br label %sw.epilog - -sw.bb3: ; preds = %entry - call void bitcast (void (...)* @callcase3 to void ()*)() - br label %sw.epilog - -sw.bb4: ; preds = %entry - call void bitcast (void (...)* @callcase4 to void ()*)() - br label %sw.epilog - -sw.default: ; preds = %entry - call void bitcast (void (...)* @calldefault to void ()*)() - br label %sw.epilog - -; CHECK-LABEL: sw.epilog: -; CHECK: %fp.0 = phi void (...)* [ @FD, %sw.default ], [ @F4, %sw.bb4 ], [ @F3, %sw.bb3 ], [ @F1, %entry ], [ @F1, %entry ] -sw.epilog: ; preds = %sw.default, %sw.bb3, %sw.bb2, %sw.bb - %fp.0 = phi void (...)* [ @FD, %sw.default ], [ @F4, %sw.bb4 ], [ @F3, %sw.bb3 ], [ @F1, %sw.bb2 ], [ @F1, %sw.bb ] - %callee.knr.cast = bitcast void (...)* %fp.0 to void ()* - call void %callee.knr.cast() - ret i32 0 -} - -declare void @F1(...) local_unnamed_addr -declare void @F2(...) local_unnamed_addr -declare void @F3(...) local_unnamed_addr -declare void @F4(...) local_unnamed_addr -declare void @FD(...) local_unnamed_addr -declare void @callcase3(...) local_unnamed_addr -declare void @callcase4(...) local_unnamed_addr -declare void @calldefault(...) local_unnamed_addr - -!0 = !{!"branch_weights", i32 5, i32 1, i32 1,i32 5, i32 5} -!1 = !{!"branch_weights", i32 1 , i32 5, i32 1,i32 1, i32 1} -!2 = !{!"branch_weights", i32 1 , i32 4, i32 1,i32 1, i32 1} |