1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --include-generated-funcs 2; RUN: opt -S -passes=verify,iroutliner -ir-outlining-no-cost < %s | FileCheck %s 3 4; Show that we are able to extract blocks that contain PHINodes, and selectively 5; store into it's respective block, only using if needed. 6 7define void @function1(ptr %a, ptr %b) { 8entry: 9 %0 = alloca i32, align 4 10 %c = load i32, ptr %0, align 4 11 br label %test1 12test1: 13 %e = load i32, ptr %0, align 4 14 br label %first 15test: 16 %d = load i32, ptr %0, align 4 17 br label %first 18first: 19 %1 = phi i32 [ %c, %test ], [ %e, %test1 ] 20 ret void 21} 22 23define void @function2(ptr %a, ptr %b) { 24entry: 25 %0 = alloca i32, align 4 26 %c = load i32, ptr %0, align 4 27 br label %test1 28test1: 29 %e = load i32, ptr %0, align 4 30 br label %first 31test: 32 %d = load i32, ptr %0, align 4 33 br label %first 34first: 35 ret void 36} 37; CHECK-LABEL: @function1( 38; CHECK-NEXT: entry: 39; CHECK-NEXT: [[DOTCE_LOC:%.*]] = alloca i32, align 4 40; CHECK-NEXT: [[TMP0:%.*]] = alloca i32, align 4 41; CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 -1, ptr [[DOTCE_LOC]]) 42; CHECK-NEXT: call void @outlined_ir_func_0(ptr [[TMP0]], ptr [[DOTCE_LOC]], i32 0) 43; CHECK-NEXT: [[DOTCE_RELOAD:%.*]] = load i32, ptr [[DOTCE_LOC]], align 4 44; CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 -1, ptr [[DOTCE_LOC]]) 45; CHECK-NEXT: br label [[FIRST:%.*]] 46; CHECK: first: 47; CHECK-NEXT: [[TMP1:%.*]] = phi i32 [ [[DOTCE_RELOAD]], [[ENTRY:%.*]] ] 48; CHECK-NEXT: ret void 49; 50; 51; CHECK-LABEL: @function2( 52; CHECK-NEXT: entry: 53; CHECK-NEXT: [[TMP0:%.*]] = alloca i32, align 4 54; CHECK-NEXT: call void @outlined_ir_func_0(ptr [[TMP0]], ptr null, i32 -1) 55; CHECK-NEXT: br label [[FIRST:%.*]] 56; CHECK: first: 57; CHECK-NEXT: ret void 58; 59; 60; CHECK-LABEL: define internal void @outlined_ir_func_0( 61; CHECK-NEXT: newFuncRoot: 62; CHECK-NEXT: br label [[ENTRY_TO_OUTLINE:%.*]] 63; CHECK: entry_to_outline: 64; CHECK-NEXT: [[C:%.*]] = load i32, ptr [[TMP0:%.*]], align 4 65; CHECK-NEXT: br label [[TEST1:%.*]] 66; CHECK: test1: 67; CHECK-NEXT: [[E:%.*]] = load i32, ptr [[TMP0]], align 4 68; CHECK-NEXT: br label [[FIRST_SPLIT:%.*]] 69; CHECK: test: 70; CHECK-NEXT: [[D:%.*]] = load i32, ptr [[TMP0]], align 4 71; CHECK-NEXT: br label [[FIRST_SPLIT]] 72; CHECK: first.split: 73; CHECK-NEXT: [[DOTCE:%.*]] = phi i32 [ [[C]], [[TEST:%.*]] ], [ [[E]], [[TEST1]] ] 74; CHECK-NEXT: br label [[FIRST_EXITSTUB:%.*]] 75; CHECK: first.exitStub: 76; CHECK-NEXT: switch i32 [[TMP2:%.*]], label [[FINAL_BLOCK_0:%.*]] [ 77; CHECK-NEXT: i32 0, label [[OUTPUT_BLOCK_0_0:%.*]] 78; CHECK-NEXT: ] 79; CHECK: output_block_0_0: 80; CHECK-NEXT: store i32 [[DOTCE]], ptr [[TMP1:%.*]], align 4 81; CHECK-NEXT: br label [[FINAL_BLOCK_0]] 82; CHECK: final_block_0: 83; CHECK-NEXT: ret void 84; 85