1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 3 2; RUN: opt < %s -loop-reduce -S | FileCheck %s 3 4; Provide legal integer types. 5target datalayout = "n8:16:32:64" 6 7@d = common global i32 0, align 4 8 9define void @fn2(i32 %x) nounwind uwtable { 10; CHECK-LABEL: define void @fn2( 11; CHECK-SAME: i32 [[X:%.*]]) #[[ATTR0:[0-9]+]] { 12; CHECK-NEXT: entry: 13; CHECK-NEXT: br label [[FOR_COND:%.*]] 14; CHECK: for.cond: 15; CHECK-NEXT: [[LSR_IV:%.*]] = phi i32 [ [[LSR_IV_NEXT:%.*]], [[FOR_COND]] ], [ -1, [[ENTRY:%.*]] ] 16; CHECK-NEXT: [[TOBOOL:%.*]] = icmp eq i32 [[X]], 0 17; CHECK-NEXT: [[LSR_IV_NEXT]] = add i32 [[LSR_IV]], 1 18; CHECK-NEXT: br i1 [[TOBOOL]], label [[FOR_COND]], label [[FOR_END:%.*]] 19; CHECK: for.end: 20; CHECK-NEXT: [[TMP1:%.*]] = load i32, ptr @d, align 4 21; CHECK-NEXT: [[TMP2:%.*]] = load i32, ptr @d, align 4 22; CHECK-NEXT: [[TMP0:%.*]] = sub i32 [[TMP1]], [[TMP2]] 23; CHECK-NEXT: [[TOBOOL26:%.*]] = icmp eq i32 [[X]], 0 24; CHECK-NEXT: br i1 [[TOBOOL26]], label [[FOR_END5:%.*]], label [[FOR_BODY_LR_PH:%.*]] 25; CHECK: for.body.lr.ph: 26; CHECK-NEXT: [[TOBOOL3:%.*]] = icmp ne i32 [[TMP0]], [[LSR_IV_NEXT]] 27; CHECK-NEXT: br label [[FOR_END5]] 28; CHECK: for.end5: 29; CHECK-NEXT: ret void 30; 31entry: 32 br label %for.cond 33 34for.cond: 35 %g.0 = phi i32 [ 0, %entry ], [ %dec, %for.cond ] 36 %tobool = icmp eq i32 %x, 0 37 %dec = add nsw i32 %g.0, -1 38 br i1 %tobool, label %for.cond, label %for.end 39 40for.end: 41 %tmp1 = load i32, ptr @d, align 4 42 %add = add nsw i32 %tmp1, %g.0 43 %tmp2 = load i32, ptr @d, align 4 44 %tobool26 = icmp eq i32 %x, 0 45 br i1 %tobool26, label %for.end5, label %for.body.lr.ph 46 47for.body.lr.ph: 48 %tobool3 = icmp ne i32 %tmp2, %add 49 br label %for.end5 50 51for.end5: 52 ret void 53} 54 55 56