1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 3 2; RUN: opt -S -passes="loop-mssa(simple-loop-unswitch<nontrivial>),loop(loop-unroll-full),loop-simplify,verify<scalar-evolution>" < %s | FileCheck %s 3 4; Should not caused a SCEV verification failure due to incorrect 5; loop dispositions. 6 7define void @g(ptr %b, i32 %arg, i1 %tobool.not) { 8; CHECK-LABEL: define void @g( 9; CHECK-SAME: ptr [[B:%.*]], i32 [[ARG:%.*]], i1 [[TOBOOL_NOT:%.*]]) { 10; CHECK-NEXT: entry: 11; CHECK-NEXT: br i1 [[TOBOOL_NOT]], label [[ENTRY_SPLIT_US:%.*]], label [[ENTRY_SPLIT:%.*]] 12; CHECK: entry.split.us: 13; CHECK-NEXT: br label [[FOR_BODY_US:%.*]] 14; CHECK: for.body.us: 15; CHECK-NEXT: br label [[LAND_END_US:%.*]] 16; CHECK: land.end.us: 17; CHECK-NEXT: store i16 0, ptr [[B]], align 1 18; CHECK-NEXT: br label [[FOR_END:%.*]] 19; CHECK: entry.split: 20; CHECK-NEXT: br label [[FOR_BODY_PEEL_BEGIN:%.*]] 21; CHECK: for.body.peel.begin: 22; CHECK-NEXT: br label [[FOR_BODY_PEEL:%.*]] 23; CHECK: for.body.peel: 24; CHECK-NEXT: br label [[LAND_RHS_PEEL:%.*]] 25; CHECK: land.rhs.peel: 26; CHECK-NEXT: [[AND_PEEL:%.*]] = and i32 -1, [[ARG]] 27; CHECK-NEXT: [[TOBOOL2_PEEL:%.*]] = icmp ne i32 [[AND_PEEL]], 0 28; CHECK-NEXT: [[DOTPRE_PEEL:%.*]] = load i32, ptr [[B]], align 1 29; CHECK-NEXT: br label [[LAND_END_PEEL:%.*]] 30; CHECK: land.end.peel: 31; CHECK-NEXT: [[IV2_PEEL:%.*]] = phi i32 [ [[DOTPRE_PEEL]], [[LAND_RHS_PEEL]] ] 32; CHECK-NEXT: [[IV3_PEEL:%.*]] = phi i1 [ [[TOBOOL2_PEEL]], [[LAND_RHS_PEEL]] ] 33; CHECK-NEXT: [[LAND_EXT_PEEL:%.*]] = zext i1 [[IV3_PEEL]] to i16 34; CHECK-NEXT: [[CMP3_PEEL:%.*]] = icmp ne i16 0, [[LAND_EXT_PEEL]] 35; CHECK-NEXT: [[CONV4_PEEL:%.*]] = zext i1 [[CMP3_PEEL]] to i16 36; CHECK-NEXT: store i16 [[LAND_EXT_PEEL]], ptr [[B]], align 1 37; CHECK-NEXT: [[CMP_PEEL:%.*]] = icmp slt i32 [[IV2_PEEL]], 0 38; CHECK-NEXT: br i1 [[CMP_PEEL]], label [[FOR_BODY_PEEL_NEXT:%.*]], label [[FOR_END_SPLIT:%.*]] 39; CHECK: for.body.peel.next: 40; CHECK-NEXT: br label [[FOR_BODY_PEEL_NEXT1:%.*]] 41; CHECK: for.body.peel.next1: 42; CHECK-NEXT: br label [[ENTRY_SPLIT_PEEL_NEWPH:%.*]] 43; CHECK: entry.split.peel.newph: 44; CHECK-NEXT: [[TOBOOL2:%.*]] = icmp ne i32 [[ARG]], 0 45; CHECK-NEXT: [[LAND_EXT:%.*]] = zext i1 [[TOBOOL2]] to i16 46; CHECK-NEXT: br label [[FOR_BODY:%.*]] 47; CHECK: for.body: 48; CHECK-NEXT: br label [[LAND_RHS:%.*]] 49; CHECK: land.rhs: 50; CHECK-NEXT: [[DOTPRE:%.*]] = load i32, ptr [[B]], align 1 51; CHECK-NEXT: br label [[LAND_END:%.*]] 52; CHECK: land.end: 53; CHECK-NEXT: store i16 [[LAND_EXT]], ptr [[B]], align 1 54; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[DOTPRE]], 0 55; CHECK-NEXT: br i1 [[CMP]], label [[FOR_BODY]], label [[FOR_END_SPLIT_LOOPEXIT:%.*]], !llvm.loop [[LOOP0:![0-9]+]] 56; CHECK: for.end.split.loopexit: 57; CHECK-NEXT: br label [[FOR_END_SPLIT]] 58; CHECK: for.end.split: 59; CHECK-NEXT: br label [[FOR_END]] 60; CHECK: for.end: 61; CHECK-NEXT: ret void 62; 63entry: 64 br label %for.body 65 66for.body: ; preds = %land.end, %entry 67 %iv1 = phi i16 [ 0, %entry ], [ %trunc, %land.end ] 68 br i1 %tobool.not, label %land.end, label %land.rhs 69 70land.rhs: ; preds = %for.body 71 %and = and i32 -1, %arg 72 %tobool2 = icmp ne i32 %and, 0 73 %.pre = load i32, ptr %b, align 1 74 br label %land.end 75 76land.end: ; preds = %land.rhs, %for.body 77 %iv2 = phi i32 [ 0, %for.body ], [ %.pre, %land.rhs ] 78 %iv3 = phi i1 [ false, %for.body ], [ %tobool2, %land.rhs ] 79 %land.ext = zext i1 %iv3 to i16 80 %cmp3 = icmp ne i16 %iv1, %land.ext 81 %conv4 = zext i1 %cmp3 to i16 82 store i16 %land.ext, ptr %b, align 1 83 %cmp = icmp slt i32 %iv2, 0 84 %trunc = trunc i32 %arg to i16 85 br i1 %cmp, label %for.body, label %for.end 86 87for.end: ; preds = %land.end 88 ret void 89} 90