1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -passes=loop-vectorize -force-vector-width=2 %s -S | FileCheck %s 3 4; Test case for PR47343. Make sure LCSSA phis are create correctly when 5; expanding the memory runtime checks. 6 7@f.e = external global i32, align 1 8@d = external global i8*, align 1 9 10declare i1 @cond() 11 12define void @f() { 13; CHECK-LABEL: @f( 14; CHECK-NEXT: entry: 15; CHECK-NEXT: br label [[OUTER_HEADER:%.*]] 16; CHECK: outer.header: 17; CHECK-NEXT: [[TMP0:%.*]] = load i8*, i8** @d, align 1 18; CHECK-NEXT: [[C_0:%.*]] = call i1 @cond() 19; CHECK-NEXT: br i1 [[C_0]], label [[OUTER_EXIT_0:%.*]], label [[INNER_1_HEADER_PREHEADER:%.*]] 20; CHECK: inner.1.header.preheader: 21; CHECK-NEXT: br label [[INNER_1_HEADER:%.*]] 22; CHECK: inner.1.header: 23; CHECK-NEXT: [[C_1:%.*]] = call i1 @cond() 24; CHECK-NEXT: br i1 [[C_1]], label [[INNER_1_LATCH:%.*]], label [[OUTER_LATCH:%.*]] 25; CHECK: inner.1.latch: 26; CHECK-NEXT: [[C_2:%.*]] = call i1 @cond() 27; CHECK-NEXT: br i1 [[C_2]], label [[OUTER_EXIT_1:%.*]], label [[INNER_1_HEADER]] 28; CHECK: outer.latch: 29; CHECK-NEXT: br label [[OUTER_HEADER]] 30; CHECK: outer.exit.0: 31; CHECK-NEXT: [[DOTLCSSA:%.*]] = phi i8* [ [[TMP0]], [[OUTER_HEADER]] ] 32; CHECK-NEXT: br label [[LOOP_PREHEADER:%.*]] 33; CHECK: outer.exit.1: 34; CHECK-NEXT: [[DOTLCSSA1:%.*]] = phi i8* [ [[TMP0]], [[INNER_1_LATCH]] ] 35; CHECK-NEXT: br label [[LOOP_PREHEADER]] 36; CHECK: loop.preheader: 37; CHECK-NEXT: [[TMP1:%.*]] = phi i8* [ [[DOTLCSSA]], [[OUTER_EXIT_0]] ], [ [[DOTLCSSA1]], [[OUTER_EXIT_1]] ] 38; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_MEMCHECK:%.*]] 39; CHECK: vector.memcheck: 40; CHECK-NEXT: [[SCEVGEP:%.*]] = getelementptr i8, i8* [[TMP1]], i64 1 41; CHECK-NEXT: [[BOUND0:%.*]] = icmp ult i8* bitcast (i32* @f.e to i8*), [[SCEVGEP]] 42; CHECK-NEXT: [[BOUND1:%.*]] = icmp ult i8* [[TMP1]], bitcast (i32* getelementptr inbounds (i32, i32* @f.e, i64 1) to i8*) 43; CHECK-NEXT: [[FOUND_CONFLICT:%.*]] = and i1 [[BOUND0]], [[BOUND1]] 44; CHECK-NEXT: br i1 [[FOUND_CONFLICT]], label [[SCALAR_PH]], label [[VECTOR_PH:%.*]] 45; CHECK: vector.ph: 46; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] 47; CHECK: vector.body: 48; CHECK-NEXT: [[INDEX:%.*]] = phi i32 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] 49; CHECK-NEXT: store i32 0, i32* @f.e, align 1, !alias.scope !0, !noalias !3 50; CHECK-NEXT: store i32 0, i32* @f.e, align 1, !alias.scope !0, !noalias !3 51; CHECK-NEXT: store i8 10, i8* [[TMP0]], align 1 52; CHECK-NEXT: store i8 10, i8* [[TMP0]], align 1 53; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i32 [[INDEX]], 2 54; CHECK-NEXT: [[TMP2:%.*]] = icmp eq i32 [[INDEX_NEXT]], 500 55; CHECK-NEXT: br i1 [[TMP2]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP5:![0-9]+]] 56; CHECK: middle.block: 57; CHECK-NEXT: [[CMP_N:%.*]] = icmp eq i32 500, 500 58; CHECK-NEXT: br i1 [[CMP_N]], label [[EXIT:%.*]], label [[SCALAR_PH]] 59; CHECK: scalar.ph: 60; CHECK-NEXT: [[BC_RESUME_VAL:%.*]] = phi i32 [ 500, [[MIDDLE_BLOCK]] ], [ 0, [[LOOP_PREHEADER]] ], [ 0, [[VECTOR_MEMCHECK]] ] 61; CHECK-NEXT: br label [[LOOP:%.*]] 62; CHECK: loop: 63; CHECK-NEXT: [[IV:%.*]] = phi i32 [ [[IV_NEXT:%.*]], [[LOOP]] ], [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ] 64; CHECK-NEXT: [[CONV6_US_US_US:%.*]] = zext i1 false to i32 65; CHECK-NEXT: store i32 [[CONV6_US_US_US]], i32* @f.e, align 1 66; CHECK-NEXT: store i8 10, i8* [[TMP1]], align 1 67; CHECK-NEXT: [[IV_NEXT]] = add nsw i32 [[IV]], 1 68; CHECK-NEXT: [[EC:%.*]] = icmp eq i32 [[IV_NEXT]], 500 69; CHECK-NEXT: br i1 [[EC]], label [[EXIT]], label [[LOOP]], !llvm.loop [[LOOP7:![0-9]+]] 70; CHECK: exit: 71; CHECK-NEXT: ret void 72; 73entry: 74 br label %outer.header 75 76outer.header: ; preds = %cleanup, %entry 77 %0 = load i8*, i8** @d, align 1 78 %c.0 = call i1 @cond() 79 br i1 %c.0, label %outer.exit.0, label %inner.1.header 80 81inner.1.header: ; preds = %if.end, %for.body3.lr.ph.outer 82 %c.1 = call i1 @cond() 83 br i1 %c.1, label %inner.1.latch, label %outer.latch 84 85inner.1.latch: ; preds = %land.end 86 %c.2 = call i1 @cond() 87 br i1 %c.2, label %outer.exit.1, label %inner.1.header 88 89outer.latch: ; preds = %land.end 90 br label %outer.header 91 92 93outer.exit.0: ; preds = %if.end, %if.end.us.us.us 94 br label %loop 95 96outer.exit.1: ; preds = %if.end, %if.end.us.us.us 97 br label %loop 98 99loop: ; preds = %if.end.us.us.us, %for.body3.lr.ph.outer 100 %iv = phi i32 [ %iv.next, %loop ], [ 0, %outer.exit.0 ], [ 0, %outer.exit.1 ] 101 %conv6.us.us.us = zext i1 false to i32 102 store i32 %conv6.us.us.us, i32* @f.e, align 1 103 store i8 10, i8* %0, align 1 104 %iv.next = add nsw i32 %iv, 1 105 %ec = icmp eq i32 %iv.next, 500 106 br i1 %ec, label %exit, label %loop 107 108exit: 109 ret void 110} 111