1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -S -p iroutliner,verify -ir-outlining-no-cost < %s | FileCheck %s 3 4; This test checks that commutative instructions where the operands are 5; swapped are outlined as the same function. 6 7; It also checks that non-commutative instructions outlined as different 8; functions when the operands are swapped; 9 10; These are identical functions, except that in the flipped functions, 11; the operands in the adds are commuted. However, since add instructions 12; are commutative, we should still outline from all four as the same 13; instruction. 14 15define void @function1(i32 %a, i32 %b) { 16; CHECK-LABEL: @function1( 17; CHECK-NEXT: entry: 18; CHECK-NEXT: br label [[BLOCK_1:%.*]] 19; CHECK: block_0: 20; CHECK-NEXT: [[TMP0:%.*]] = add i32 [[A:%.*]], [[B:%.*]] 21; CHECK-NEXT: [[TMP1:%.*]] = add i32 [[TMP4:%.*]], 1 22; CHECK-NEXT: [[TMP2:%.*]] = add i32 [[TMP0]], [[TMP0]] 23; CHECK-NEXT: [[TMP3:%.*]] = icmp sgt i32 [[TMP0]], [[TMP0]] 24; CHECK-NEXT: br i1 [[TMP3]], label [[BLOCK_1]], label [[BLOCK_2:%.*]] 25; CHECK: block_1: 26; CHECK-NEXT: [[TMP4]] = phi i32 [ [[TMP1]], [[BLOCK_0:%.*]] ], [ 0, [[ENTRY:%.*]] ] 27; CHECK-NEXT: call void @outlined_ir_func_0(i32 [[B]]) 28; CHECK-NEXT: br label [[BLOCK_0]] 29; CHECK: block_2: 30; CHECK-NEXT: [[TMP5:%.*]] = add i32 [[TMP2]], [[TMP2]] 31; CHECK-NEXT: ret void 32; 33entry: 34 br label %block_1 35 36block_0: 37 %0 = add i32 %a, %b 38 %1 = add i32 %4, 1 39 %2 = add i32 %0, %0 40 %3 = icmp sgt i32 %0, %0 41 br i1 %3, label %block_1, label %block_2 42 43block_1: 44 %4 = phi i32 [ %1, %block_0 ], [ 0, %entry ] 45 %5 = add i32 %b, %b 46 br label %block_0 47 48block_2: 49 %6 = add i32 %2, %2 50 ret void 51} 52 53define void @function2(i32 %a, i32 %b) { 54; CHECK-LABEL: @function2( 55; CHECK-NEXT: entry: 56; CHECK-NEXT: br label [[BLOCK_1:%.*]] 57; CHECK: block_0: 58; CHECK-NEXT: [[TMP0:%.*]] = sub i32 [[A:%.*]], [[B:%.*]] 59; CHECK-NEXT: [[TMP1:%.*]] = add i32 1, [[TMP4:%.*]] 60; CHECK-NEXT: [[TMP2:%.*]] = add i32 [[TMP0]], [[TMP0]] 61; CHECK-NEXT: [[TMP3:%.*]] = icmp sgt i32 [[TMP0]], [[TMP0]] 62; CHECK-NEXT: br i1 [[TMP3]], label [[BLOCK_1]], label [[BLOCK_2:%.*]] 63; CHECK: block_1: 64; CHECK-NEXT: [[TMP4]] = phi i32 [ [[TMP1]], [[BLOCK_0:%.*]] ], [ 0, [[ENTRY:%.*]] ] 65; CHECK-NEXT: call void @outlined_ir_func_0(i32 [[B]]) 66; CHECK-NEXT: br label [[BLOCK_0]] 67; CHECK: block_2: 68; CHECK-NEXT: [[TMP5:%.*]] = sub i32 [[TMP2]], [[TMP2]] 69; CHECK-NEXT: ret void 70; 71entry: 72 br label %block_1 73 74block_0: 75 %0 = sub i32 %a, %b 76 %1 = add i32 1, %4 77 %2 = add i32 %0, %0 78 %3 = icmp sgt i32 %0, %0 79 br i1 %3, label %block_1, label %block_2 80 81block_1: 82 %4 = phi i32 [ %1, %block_0 ], [ 0, %entry ] 83 %5 = add i32 %b, %b 84 br label %block_0 85 86block_2: 87 %6 = sub i32 %2, %2 88 ret void 89} 90