| ; RUN: llc < %s --mtriple=wasm32-unknown-unknown -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers -disable-block-placement -verify-machineinstrs | FileCheck %s |
| ; RUN: llc < %s --mtriple=wasm64-unknown-unknown -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers -disable-block-placement -verify-machineinstrs | FileCheck %s |
| |
| ; Test switch instructions. Block placement is disabled because it reorders |
| ; the blocks in a way that isn't interesting here. |
| |
| declare void @foo0() |
| declare void @foo1() |
| declare void @foo2() |
| declare void @foo3() |
| declare void @foo4() |
| declare void @foo5() |
| |
| ; CHECK-LABEL: bar32: |
| ; CHECK: block {{$}} |
| ; CHECK: block {{$}} |
| ; CHECK: block {{$}} |
| ; CHECK: block {{$}} |
| ; CHECK: block {{$}} |
| ; CHECK: block {{$}} |
| ; CHECK: block {{$}} |
| ; CHECK-NEXT: br_table {{[^,]+}}, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 4, 5, 6{{$}} |
| ; CHECK: .LBB{{[0-9]+}}_1: |
| ; CHECK: call foo0{{$}} |
| ; CHECK: .LBB{{[0-9]+}}_2: |
| ; CHECK: call foo1{{$}} |
| ; CHECK: .LBB{{[0-9]+}}_3: |
| ; CHECK: call foo2{{$}} |
| ; CHECK: .LBB{{[0-9]+}}_4: |
| ; CHECK: call foo3{{$}} |
| ; CHECK: .LBB{{[0-9]+}}_5: |
| ; CHECK: call foo4{{$}} |
| ; CHECK: .LBB{{[0-9]+}}_6: |
| ; CHECK: call foo5{{$}} |
| ; CHECK: .LBB{{[0-9]+}}_7: |
| ; CHECK: return{{$}} |
| define void @bar32(i32 %n) { |
| entry: |
| switch i32 %n, label %sw.epilog [ |
| i32 0, label %sw.bb |
| i32 1, label %sw.bb |
| i32 2, label %sw.bb |
| i32 3, label %sw.bb |
| i32 4, label %sw.bb |
| i32 5, label %sw.bb |
| i32 6, label %sw.bb |
| i32 7, label %sw.bb.1 |
| i32 8, label %sw.bb.1 |
| i32 9, label %sw.bb.1 |
| i32 10, label %sw.bb.1 |
| i32 11, label %sw.bb.1 |
| i32 12, label %sw.bb.1 |
| i32 13, label %sw.bb.1 |
| i32 14, label %sw.bb.1 |
| i32 15, label %sw.bb.2 |
| i32 16, label %sw.bb.2 |
| i32 17, label %sw.bb.2 |
| i32 18, label %sw.bb.2 |
| i32 19, label %sw.bb.2 |
| i32 20, label %sw.bb.2 |
| i32 21, label %sw.bb.3 |
| i32 22, label %sw.bb.4 |
| i32 23, label %sw.bb.5 |
| ] |
| |
| sw.bb: ; preds = %entry, %entry, %entry, %entry, %entry, %entry, %entry |
| tail call void @foo0() |
| br label %sw.epilog |
| |
| sw.bb.1: ; preds = %entry, %entry, %entry, %entry, %entry, %entry, %entry, %entry |
| tail call void @foo1() |
| br label %sw.epilog |
| |
| sw.bb.2: ; preds = %entry, %entry, %entry, %entry, %entry, %entry |
| tail call void @foo2() |
| br label %sw.epilog |
| |
| sw.bb.3: ; preds = %entry |
| tail call void @foo3() |
| br label %sw.epilog |
| |
| sw.bb.4: ; preds = %entry |
| tail call void @foo4() |
| br label %sw.epilog |
| |
| sw.bb.5: ; preds = %entry |
| tail call void @foo5() |
| br label %sw.epilog |
| |
| sw.epilog: ; preds = %entry, %sw.bb.5, %sw.bb.4, %sw.bb.3, %sw.bb.2, %sw.bb.1, %sw.bb |
| ret void |
| } |
| |
| ; CHECK-LABEL: bar64: |
| ; CHECK: block {{$}} |
| ; CHECK: i64.const |
| ; CHECK: i64.gt_u |
| ; CHECK: br_if 0 |
| ; CHECK: block {{$}} |
| ; CHECK: block {{$}} |
| ; CHECK: block {{$}} |
| ; CHECK: block {{$}} |
| ; CHECK: block {{$}} |
| ; CHECK: block {{$}} |
| ; CHECK: i32.wrap_i64 |
| ; CHECK-NEXT: br_table {{[^,]+}}, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 4, 5, 0{{$}} |
| ; CHECK: .LBB{{[0-9]+}}_2: |
| ; CHECK: call foo0{{$}} |
| ; CHECK: .LBB{{[0-9]+}}_3: |
| ; CHECK: call foo1{{$}} |
| ; CHECK: .LBB{{[0-9]+}}_4: |
| ; CHECK: call foo2{{$}} |
| ; CHECK: .LBB{{[0-9]+}}_5: |
| ; CHECK: call foo3{{$}} |
| ; CHECK: .LBB{{[0-9]+}}_6: |
| ; CHECK: call foo4{{$}} |
| ; CHECK: .LBB{{[0-9]+}}_7: |
| ; CHECK: call foo5{{$}} |
| ; CHECK: .LBB{{[0-9]+}}_8: |
| ; CHECK: return{{$}} |
| define void @bar64(i64 %n) { |
| entry: |
| switch i64 %n, label %sw.epilog [ |
| i64 0, label %sw.bb |
| i64 1, label %sw.bb |
| i64 2, label %sw.bb |
| i64 3, label %sw.bb |
| i64 4, label %sw.bb |
| i64 5, label %sw.bb |
| i64 6, label %sw.bb |
| i64 7, label %sw.bb.1 |
| i64 8, label %sw.bb.1 |
| i64 9, label %sw.bb.1 |
| i64 10, label %sw.bb.1 |
| i64 11, label %sw.bb.1 |
| i64 12, label %sw.bb.1 |
| i64 13, label %sw.bb.1 |
| i64 14, label %sw.bb.1 |
| i64 15, label %sw.bb.2 |
| i64 16, label %sw.bb.2 |
| i64 17, label %sw.bb.2 |
| i64 18, label %sw.bb.2 |
| i64 19, label %sw.bb.2 |
| i64 20, label %sw.bb.2 |
| i64 21, label %sw.bb.3 |
| i64 22, label %sw.bb.4 |
| i64 23, label %sw.bb.5 |
| ] |
| |
| sw.bb: ; preds = %entry, %entry, %entry, %entry, %entry, %entry, %entry |
| tail call void @foo0() |
| br label %sw.epilog |
| |
| sw.bb.1: ; preds = %entry, %entry, %entry, %entry, %entry, %entry, %entry, %entry |
| tail call void @foo1() |
| br label %sw.epilog |
| |
| sw.bb.2: ; preds = %entry, %entry, %entry, %entry, %entry, %entry |
| tail call void @foo2() |
| br label %sw.epilog |
| |
| sw.bb.3: ; preds = %entry |
| tail call void @foo3() |
| br label %sw.epilog |
| |
| sw.bb.4: ; preds = %entry |
| tail call void @foo4() |
| br label %sw.epilog |
| |
| sw.bb.5: ; preds = %entry |
| tail call void @foo5() |
| br label %sw.epilog |
| |
| sw.epilog: ; preds = %entry, %sw.bb.5, %sw.bb.4, %sw.bb.3, %sw.bb.2, %sw.bb.1, %sw.bb |
| ret void |
| } |
| |
| ; CHECK-LABEL: truncated: |
| ; CHECK: block |
| ; CHECK: block |
| ; CHECK: block |
| ; CHECK: i32.wrap_i64 |
| ; CHECK-NEXT: br_table {{[^,]+}}, 0, 1, 2{{$}} |
| ; CHECK: .LBB{{[0-9]+}}_1 |
| ; CHECK: end_block |
| ; CHECK: call foo0{{$}} |
| ; CHECK: return{{$}} |
| ; CHECK: .LBB{{[0-9]+}}_2 |
| ; CHECK: end_block |
| ; CHECK: call foo1{{$}} |
| ; CHECK: return{{$}} |
| ; CHECK: .LBB{{[0-9]+}}_3 |
| ; CHECK: end_block |
| ; CHECK: call foo2{{$}} |
| ; CHECK: return{{$}} |
| ; CHECK: end_function |
| define void @truncated(i64 %n) { |
| entry: |
| %m = trunc i64 %n to i32 |
| switch i32 %m, label %default [ |
| i32 0, label %bb1 |
| i32 1, label %bb2 |
| ] |
| |
| bb1: |
| tail call void @foo0() |
| ret void |
| |
| bb2: |
| tail call void @foo1() |
| ret void |
| |
| default: |
| tail call void @foo2() |
| ret void |
| } |
