| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --include-generated-funcs |
| ; RUN: opt -S -verify -iroutliner -ir-outlining-no-cost < %s | FileCheck %s |
| |
| ; Show that we do not extract similar regions that would involve the splitting |
| ; of phi nodes on exit. |
| |
| define void @function1(i32* %a, i32* %b) { |
| entry: |
| %0 = alloca i32, align 4 |
| %c = load i32, i32* %0, align 4 |
| br label %test1 |
| test1: |
| %e = load i32, i32* %0, align 4 |
| br label %first |
| test: |
| %d = load i32, i32* %0, align 4 |
| br label %first |
| dummy: |
| ret void |
| first: |
| %1 = phi i32 [ %c, %test ], [ %e, %test1 ] |
| ret void |
| } |
| |
| define void @function2(i32* %a, i32* %b) { |
| entry: |
| %0 = alloca i32, align 4 |
| %c = load i32, i32* %0, align 4 |
| br label %test1 |
| test1: |
| %e = load i32, i32* %0, align 4 |
| br label %first |
| test: |
| %d = load i32, i32* %0, align 4 |
| br label %first |
| dummy: |
| ret void |
| first: |
| %1 = phi i32 [ %c, %test ], [ %e, %test1 ] |
| ret void |
| } |
| ; CHECK-LABEL: @function1( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[DOTCE_LOC:%.*]] = alloca i32, align 4 |
| ; CHECK-NEXT: [[TMP0:%.*]] = alloca i32, align 4 |
| ; CHECK-NEXT: [[LT_CAST:%.*]] = bitcast i32* [[DOTCE_LOC]] to i8* |
| ; CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 -1, i8* [[LT_CAST]]) |
| ; CHECK-NEXT: call void @outlined_ir_func_0(i32* [[TMP0]], i32* [[DOTCE_LOC]]) |
| ; CHECK-NEXT: [[DOTCE_RELOAD:%.*]] = load i32, i32* [[DOTCE_LOC]], align 4 |
| ; CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 -1, i8* [[LT_CAST]]) |
| ; CHECK-NEXT: br label [[FIRST:%.*]] |
| ; CHECK: dummy: |
| ; CHECK-NEXT: ret void |
| ; CHECK: first: |
| ; CHECK-NEXT: [[TMP1:%.*]] = phi i32 [ [[DOTCE_RELOAD]], [[ENTRY:%.*]] ] |
| ; CHECK-NEXT: ret void |
| ; |
| ; |
| ; CHECK-LABEL: @function2( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[DOTCE_LOC:%.*]] = alloca i32, align 4 |
| ; CHECK-NEXT: [[TMP0:%.*]] = alloca i32, align 4 |
| ; CHECK-NEXT: [[LT_CAST:%.*]] = bitcast i32* [[DOTCE_LOC]] to i8* |
| ; CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 -1, i8* [[LT_CAST]]) |
| ; CHECK-NEXT: call void @outlined_ir_func_0(i32* [[TMP0]], i32* [[DOTCE_LOC]]) |
| ; CHECK-NEXT: [[DOTCE_RELOAD:%.*]] = load i32, i32* [[DOTCE_LOC]], align 4 |
| ; CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 -1, i8* [[LT_CAST]]) |
| ; CHECK-NEXT: br label [[FIRST:%.*]] |
| ; CHECK: dummy: |
| ; CHECK-NEXT: ret void |
| ; CHECK: first: |
| ; CHECK-NEXT: [[TMP1:%.*]] = phi i32 [ [[DOTCE_RELOAD]], [[ENTRY:%.*]] ] |
| ; CHECK-NEXT: ret void |
| ; |
| ; |
| ; CHECK-LABEL: define internal void @outlined_ir_func_0( |
| ; CHECK-NEXT: newFuncRoot: |
| ; CHECK-NEXT: br label [[ENTRY_TO_OUTLINE:%.*]] |
| ; CHECK: entry_to_outline: |
| ; CHECK-NEXT: [[C:%.*]] = load i32, i32* [[TMP0:%.*]], align 4 |
| ; CHECK-NEXT: br label [[TEST1:%.*]] |
| ; CHECK: test1: |
| ; CHECK-NEXT: [[E:%.*]] = load i32, i32* [[TMP0]], align 4 |
| ; CHECK-NEXT: br label [[FIRST_SPLIT:%.*]] |
| ; CHECK: test: |
| ; CHECK-NEXT: [[D:%.*]] = load i32, i32* [[TMP0]], align 4 |
| ; CHECK-NEXT: br label [[FIRST_SPLIT]] |
| ; CHECK: first.split: |
| ; CHECK-NEXT: [[DOTCE:%.*]] = phi i32 [ [[C]], [[TEST:%.*]] ], [ [[E]], [[TEST1]] ] |
| ; CHECK-NEXT: br label [[FIRST_EXITSTUB:%.*]] |
| ; CHECK: first.exitStub: |
| ; CHECK-NEXT: store i32 [[DOTCE]], i32* [[TMP1:%.*]], align 4 |
| ; CHECK-NEXT: ret void |
| ; |