1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 3 2; RUN: opt -S -passes=loop-idiom < %s | FileCheck %s 3 4; Make sure we don't assert if the BECount is larger than 64 bits. 5 6define void @test(ptr %p) { 7; CHECK-LABEL: define void @test( 8; CHECK-SAME: ptr [[P:%.*]]) { 9; CHECK-NEXT: entry: 10; CHECK-NEXT: call void @llvm.memset.p0.i64(ptr align 4 [[P]], i8 0, i64 0, i1 false) 11; CHECK-NEXT: br label [[FOR_BODY:%.*]] 12; CHECK: for.body: 13; CHECK-NEXT: [[IV:%.*]] = phi i128 [ 0, [[ENTRY:%.*]] ], [ [[INC:%.*]], [[FOR_BODY]] ] 14; CHECK-NEXT: [[IV_TRUNC:%.*]] = trunc i128 [[IV]] to i64 15; CHECK-NEXT: [[GEP1:%.*]] = getelementptr { i64, i64 }, ptr [[P]], i64 [[IV_TRUNC]] 16; CHECK-NEXT: [[GEP2:%.*]] = getelementptr { i64, i64 }, ptr [[P]], i64 [[IV_TRUNC]], i32 1 17; CHECK-NEXT: [[INC]] = add i128 [[IV]], 1 18; CHECK-NEXT: [[TOBOOL_NOT:%.*]] = icmp eq i128 [[INC]], 0 19; CHECK-NEXT: br i1 [[TOBOOL_NOT]], label [[EXIT:%.*]], label [[FOR_BODY]] 20; CHECK: exit: 21; CHECK-NEXT: ret void 22; 23entry: 24 br label %for.body 25 26for.body: 27 %iv = phi i128 [ 0, %entry ], [ %inc, %for.body ] 28 %iv.trunc = trunc i128 %iv to i64 29 %gep1 = getelementptr { i64, i64 }, ptr %p, i64 %iv.trunc 30 %gep2 = getelementptr { i64, i64 }, ptr %p, i64 %iv.trunc, i32 1 31 store i64 0, ptr %gep1 32 store i64 0, ptr %gep2 33 %inc = add i128 %iv, 1 34 %tobool.not = icmp eq i128 %inc, 0 35 br i1 %tobool.not, label %exit, label %for.body 36 37exit: 38 ret void 39} 40