1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5 2; RUN: opt -p loop-vectorize -S %s | FileCheck %s 3 4target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128" 5target triple = "x86_64-unknown-linux-gnu" 6 7; Test for https://github.com/llvm/llvm-project/issues/111040 8define void @smax_call_uniform(ptr %dst, i64 %x) { 9; CHECK-LABEL: define void @smax_call_uniform( 10; CHECK-SAME: ptr [[DST:%.*]], i64 [[X:%.*]]) { 11; CHECK-NEXT: [[ENTRY:.*]]: 12; CHECK-NEXT: [[C:%.*]] = icmp ult i8 -68, -69 13; CHECK-NEXT: [[MUL:%.*]] = mul nuw nsw i64 [[X]], 0 14; CHECK-NEXT: br i1 false, label %[[SCALAR_PH:.*]], label %[[VECTOR_PH:.*]] 15; CHECK: [[VECTOR_PH]]: 16; CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement <2 x i1> poison, i1 [[C]], i64 0 17; CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector <2 x i1> [[BROADCAST_SPLATINSERT]], <2 x i1> poison, <2 x i32> zeroinitializer 18; CHECK-NEXT: [[TMP1:%.*]] = xor <2 x i1> [[BROADCAST_SPLAT]], splat (i1 true) 19; CHECK-NEXT: br label %[[VECTOR_BODY:.*]] 20; CHECK: [[VECTOR_BODY]]: 21; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %[[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], %[[PRED_UREM_CONTINUE6:.*]] ] 22; CHECK-NEXT: [[TMP2:%.*]] = extractelement <2 x i1> [[TMP1]], i32 0 23; CHECK-NEXT: br i1 [[TMP2]], label %[[PRED_UREM_IF:.*]], label %[[PRED_UREM_CONTINUE:.*]] 24; CHECK: [[PRED_UREM_IF]]: 25; CHECK-NEXT: [[REM:%.*]] = urem i64 [[MUL]], [[X]] 26; CHECK-NEXT: br label %[[PRED_UREM_CONTINUE]] 27; CHECK: [[PRED_UREM_CONTINUE]]: 28; CHECK-NEXT: [[TMP4:%.*]] = phi i64 [ poison, %[[VECTOR_BODY]] ], [ [[REM]], %[[PRED_UREM_IF]] ] 29; CHECK-NEXT: [[TMP5:%.*]] = extractelement <2 x i1> [[TMP1]], i32 1 30; CHECK-NEXT: br i1 [[TMP5]], label %[[PRED_UREM_IF1:.*]], label %[[PRED_UREM_CONTINUE2:.*]] 31; CHECK: [[PRED_UREM_IF1]]: 32; CHECK-NEXT: [[TMP6:%.*]] = urem i64 [[MUL]], [[X]] 33; CHECK-NEXT: br label %[[PRED_UREM_CONTINUE2]] 34; CHECK: [[PRED_UREM_CONTINUE2]]: 35; CHECK-NEXT: [[TMP7:%.*]] = extractelement <2 x i1> [[TMP1]], i32 0 36; CHECK-NEXT: br i1 [[TMP7]], label %[[PRED_UREM_IF3:.*]], label %[[PRED_UREM_CONTINUE4:.*]] 37; CHECK: [[PRED_UREM_IF3]]: 38; CHECK-NEXT: [[TMP8:%.*]] = urem i64 [[MUL]], [[X]] 39; CHECK-NEXT: br label %[[PRED_UREM_CONTINUE4]] 40; CHECK: [[PRED_UREM_CONTINUE4]]: 41; CHECK-NEXT: [[TMP9:%.*]] = phi i64 [ poison, %[[PRED_UREM_CONTINUE2]] ], [ [[TMP8]], %[[PRED_UREM_IF3]] ] 42; CHECK-NEXT: [[TMP10:%.*]] = extractelement <2 x i1> [[TMP1]], i32 1 43; CHECK-NEXT: br i1 [[TMP10]], label %[[PRED_UREM_IF5:.*]], label %[[PRED_UREM_CONTINUE6]] 44; CHECK: [[PRED_UREM_IF5]]: 45; CHECK-NEXT: [[TMP11:%.*]] = urem i64 [[MUL]], [[X]] 46; CHECK-NEXT: br label %[[PRED_UREM_CONTINUE6]] 47; CHECK: [[PRED_UREM_CONTINUE6]]: 48; CHECK-NEXT: [[TMP12:%.*]] = tail call i64 @llvm.smax.i64(i64 [[TMP4]], i64 0) 49; CHECK-NEXT: [[TMP13:%.*]] = tail call i64 @llvm.smax.i64(i64 [[TMP9]], i64 0) 50; CHECK-NEXT: [[TMP14:%.*]] = extractelement <2 x i1> [[TMP1]], i32 0 51; CHECK-NEXT: [[P:%.*]] = select i1 [[TMP14]], i64 [[TMP12]], i64 1 52; CHECK-NEXT: [[TMP15:%.*]] = extractelement <2 x i1> [[TMP1]], i32 0 53; CHECK-NEXT: [[PREDPHI7:%.*]] = select i1 [[TMP15]], i64 [[TMP13]], i64 1 54; CHECK-NEXT: [[ADD:%.*]] = add i64 [[P]], 1 55; CHECK-NEXT: [[TMP17:%.*]] = add i64 [[PREDPHI7]], 1 56; CHECK-NEXT: [[GEP:%.*]] = getelementptr i64, ptr [[DST]], i64 [[ADD]] 57; CHECK-NEXT: [[TMP19:%.*]] = getelementptr i64, ptr [[DST]], i64 [[TMP17]] 58; CHECK-NEXT: store i64 0, ptr [[GEP]], align 8 59; CHECK-NEXT: store i64 0, ptr [[TMP19]], align 8 60; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4 61; CHECK-NEXT: [[TMP20:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024 62; CHECK-NEXT: br i1 [[TMP20]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] 63; CHECK: [[MIDDLE_BLOCK]]: 64; CHECK-NEXT: br i1 true, label %[[EXIT:.*]], label %[[SCALAR_PH]] 65; CHECK: [[SCALAR_PH]]: 66; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ 1024, %[[MIDDLE_BLOCK]] ], [ 0, %[[ENTRY]] ] 67; CHECK-NEXT: br label %[[LOOP_HEADER:.*]] 68; CHECK: [[LOOP_HEADER]]: 69; CHECK-NEXT: [[IV1:%.*]] = phi i64 [ [[BC_RESUME_VAL]], %[[SCALAR_PH]] ], [ [[IV_NEXT1:%.*]], %[[LOOP_LATCH:.*]] ] 70; CHECK-NEXT: br i1 [[C]], label %[[LOOP_LATCH]], label %[[ELSE:.*]] 71; CHECK: [[ELSE]]: 72; CHECK-NEXT: [[REM1:%.*]] = urem i64 [[MUL]], [[X]] 73; CHECK-NEXT: [[SMAX:%.*]] = tail call i64 @llvm.smax.i64(i64 [[REM1]], i64 0) 74; CHECK-NEXT: br label %[[LOOP_LATCH]] 75; CHECK: [[LOOP_LATCH]]: 76; CHECK-NEXT: [[IV:%.*]] = phi i64 [ 1, %[[LOOP_HEADER]] ], [ [[SMAX]], %[[ELSE]] ] 77; CHECK-NEXT: [[IV_NEXT:%.*]] = add i64 [[IV]], 1 78; CHECK-NEXT: [[GEP1:%.*]] = getelementptr i64, ptr [[DST]], i64 [[IV_NEXT]] 79; CHECK-NEXT: store i64 0, ptr [[GEP1]], align 8 80; CHECK-NEXT: [[IV_NEXT1]] = add i64 [[IV1]], 1 81; CHECK-NEXT: [[EC:%.*]] = icmp eq i64 [[IV_NEXT1]], 1024 82; CHECK-NEXT: br i1 [[EC]], label %[[EXIT]], label %[[LOOP_HEADER]], !llvm.loop [[LOOP3:![0-9]+]] 83; CHECK: [[EXIT]]: 84; CHECK-NEXT: ret void 85; 86entry: 87 %c = icmp ult i8 -68, -69 88 %mul = mul nsw nuw i64 %x, 0 89 br label %loop.header 90 91loop.header: 92 %iv = phi i64 [ 0, %entry ], [ %iv.next, %loop.latch ] 93 br i1 %c, label %loop.latch, label %else 94 95else: 96 %rem = urem i64 %mul, %x 97 %smax = tail call i64 @llvm.smax.i64(i64 %rem, i64 0) 98 br label %loop.latch 99 100loop.latch: 101 %p = phi i64 [ 1, %loop.header ], [ %smax, %else ] 102 %add = add i64 %p, 1 103 %gep = getelementptr i64, ptr %dst, i64 %add 104 store i64 0, ptr %gep, align 8 105 %iv.next = add i64 %iv, 1 106 %ec = icmp eq i64 %iv.next, 1024 107 br i1 %ec, label %exit, label %loop.header 108 109exit: 110 ret void 111} 112 113declare i64 @llvm.smax.i64(i64, i64) 114;. 115; CHECK: [[LOOP0]] = distinct !{[[LOOP0]], [[META1:![0-9]+]], [[META2:![0-9]+]]} 116; CHECK: [[META1]] = !{!"llvm.loop.isvectorized", i32 1} 117; CHECK: [[META2]] = !{!"llvm.loop.unroll.runtime.disable"} 118; CHECK: [[LOOP3]] = distinct !{[[LOOP3]], [[META2]], [[META1]]} 119;. 120