| ; 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 |
| |
| ; This test ensures that an extra output is not added when there is a bitcast |
| ; that is relocated to outside of the extraction due to a starting lifetime |
| ; instruction outside of the extracted region. |
| |
| ; Additionally, we check that the newly added bitcast instruction is excluded in |
| ; further extractions. |
| |
| declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture) |
| declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture) |
| |
| define void @outline_bitcast_base() { |
| entry: |
| %a = alloca i32, align 4 |
| %b = alloca i32, align 4 |
| %c = alloca i32, align 4 |
| %d = alloca i32, align 4 |
| store i32 2, i32* %a, align 4 |
| store i32 3, i32* %b, align 4 |
| store i32 4, i32* %c, align 4 |
| %X = bitcast i32* %d to i8* |
| %al = load i32, i32* %a |
| %bl = load i32, i32* %b |
| %cl = load i32, i32* %c |
| ret void |
| } |
| |
| define void @outline_bitcast_removed() { |
| entry: |
| %a = alloca i32, align 4 |
| %b = alloca i32, align 4 |
| %c = alloca i32, align 4 |
| %d = alloca i32, align 4 |
| store i32 2, i32* %a, align 4 |
| store i32 3, i32* %b, align 4 |
| store i32 4, i32* %c, align 4 |
| %X = bitcast i32* %d to i8* |
| %al = load i32, i32* %a |
| %bl = load i32, i32* %b |
| %cl = load i32, i32* %c |
| call void @llvm.lifetime.start.p0i8(i64 -1, i8* %X) |
| %am = load i32, i32* %b |
| %bm = load i32, i32* %a |
| %cm = load i32, i32* %c |
| call void @llvm.lifetime.end.p0i8(i64 -1, i8* %X) |
| ret void |
| } |
| |
| ; The first bitcast is moved down to lifetime start, and, since the original |
| ; endpoint does not match the new endpoint, we cannot extract and outline the |
| ; second bitcast and set of adds. Outlining only occurs in this case due to |
| ; the lack of a cost model, as denoted by the debug command line argument. |
| |
| define void @outline_bitcast_base2(i32 %a, i32 %b, i32 %c) { |
| entry: |
| %d = alloca i32, align 4 |
| %X = bitcast i32* %d to i8* |
| %al = add i32 %a, %b |
| %bl = add i32 %b, %a |
| %cl = add i32 %b, %c |
| %buffer = mul i32 %a, %b |
| %Y = bitcast i32* %d to i8* |
| %am = add i32 %a, %b |
| %bm = add i32 %b, %a |
| %cm = add i32 %b, %c |
| call void @llvm.lifetime.start.p0i8(i64 -1, i8* %X) |
| call void @llvm.lifetime.end.p0i8(i64 -1, i8* %X) |
| ret void |
| } |
| |
| ; CHECK-LABEL: @outline_bitcast_base( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4 |
| ; CHECK-NEXT: [[B:%.*]] = alloca i32, align 4 |
| ; CHECK-NEXT: [[C:%.*]] = alloca i32, align 4 |
| ; CHECK-NEXT: [[D:%.*]] = alloca i32, align 4 |
| ; CHECK-NEXT: call void @outlined_ir_func_0(i32* [[A]], i32* [[B]], i32* [[C]], i32* [[D]]) |
| ; CHECK-NEXT: ret void |
| ; |
| ; |
| ; CHECK-LABEL: @outline_bitcast_removed( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4 |
| ; CHECK-NEXT: [[B:%.*]] = alloca i32, align 4 |
| ; CHECK-NEXT: [[C:%.*]] = alloca i32, align 4 |
| ; CHECK-NEXT: [[D:%.*]] = alloca i32, align 4 |
| ; CHECK-NEXT: call void @outlined_ir_func_0(i32* [[A]], i32* [[B]], i32* [[C]], i32* [[D]]) |
| ; CHECK-NEXT: [[LT_CAST1:%.*]] = bitcast i32* [[D]] to i8* |
| ; CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 -1, i8* [[LT_CAST1]]) |
| ; CHECK-NEXT: [[AM:%.*]] = load i32, i32* [[B]], align 4 |
| ; CHECK-NEXT: [[BM:%.*]] = load i32, i32* [[A]], align 4 |
| ; CHECK-NEXT: [[CM:%.*]] = load i32, i32* [[C]], align 4 |
| ; CHECK-NEXT: [[LT_CAST:%.*]] = bitcast i32* [[D]] to i8* |
| ; CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 -1, i8* [[LT_CAST]]) |
| ; CHECK-NEXT: ret void |
| ; |
| ; |
| ; CHECK-LABEL: @outline_bitcast_base2( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[D:%.*]] = alloca i32, align 4 |
| ; CHECK-NEXT: [[X:%.*]] = bitcast i32* [[D]] to i8* |
| ; CHECK-NEXT: [[AL:%.*]] = add i32 [[A:%.*]], [[B:%.*]] |
| ; CHECK-NEXT: [[BL:%.*]] = add i32 [[B]], [[A]] |
| ; CHECK-NEXT: [[CL:%.*]] = add i32 [[B]], [[C:%.*]] |
| ; CHECK-NEXT: [[BUFFER:%.*]] = mul i32 [[A]], [[B]] |
| ; CHECK-NEXT: [[Y:%.*]] = bitcast i32* [[D]] to i8* |
| ; CHECK-NEXT: [[AM:%.*]] = add i32 [[A]], [[B]] |
| ; CHECK-NEXT: [[BM:%.*]] = add i32 [[B]], [[A]] |
| ; CHECK-NEXT: [[CM:%.*]] = add i32 [[B]], [[C]] |
| ; CHECK-NEXT: [[LT_CAST1:%.*]] = bitcast i32* [[D]] to i8* |
| ; CHECK-NEXT: call void @llvm.lifetime.start.p0i8(i64 -1, i8* [[LT_CAST1]]) |
| ; CHECK-NEXT: [[LT_CAST:%.*]] = bitcast i32* [[D]] to i8* |
| ; CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 -1, i8* [[LT_CAST]]) |
| ; CHECK-NEXT: ret void |
| ; |
| ; |
| ; CHECK-LABEL: @outlined_ir_func_0( |
| ; CHECK-NEXT: newFuncRoot: |
| ; CHECK-NEXT: br label [[ENTRY_TO_OUTLINE:%.*]] |
| ; CHECK: entry_to_outline: |
| ; CHECK-NEXT: store i32 2, i32* [[TMP0:%.*]], align 4 |
| ; CHECK-NEXT: store i32 3, i32* [[TMP1:%.*]], align 4 |
| ; CHECK-NEXT: store i32 4, i32* [[TMP2:%.*]], align 4 |
| ; CHECK-NEXT: [[X:%.*]] = bitcast i32* [[TMP3:%.*]] to i8* |
| ; CHECK-NEXT: [[AL:%.*]] = load i32, i32* [[TMP0]], align 4 |
| ; CHECK-NEXT: [[BL:%.*]] = load i32, i32* [[TMP1]], align 4 |
| ; CHECK-NEXT: [[CL:%.*]] = load i32, i32* [[TMP2]], align 4 |
| ; CHECK-NEXT: br label [[ENTRY_AFTER_OUTLINE_EXITSTUB:%.*]] |
| ; CHECK: entry_after_outline.exitStub: |
| ; CHECK-NEXT: ret void |