1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt < %s -passes=newgvn -S | FileCheck %s 3;; Test that we do not infinite loop on this testcase, and that we do not try 4;; to replace the phi node argument with the result of the phi node. 5target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 6 7define internal i32 @pr31491() { 8; CHECK-LABEL: @pr31491( 9; CHECK-NEXT: bb5: 10; CHECK-NEXT: br label [[BB7:%.*]] 11; CHECK: bb7: 12; CHECK-NEXT: [[TMP:%.*]] = phi ptr [ [[TMP11:%.*]], [[BB10:%.*]] ], [ undef, [[BB5:%.*]] ] 13; CHECK-NEXT: br label [[BB10]] 14; CHECK: bb10: 15; CHECK-NEXT: [[TMP11]] = tail call ptr @patatino(ptr [[TMP]]) 16; CHECK-NEXT: br label [[BB7]] 17; 18bb5: 19 br label %bb7 20 21bb7: ; preds = %bb10, %bb5 22 %tmp = phi ptr [ %tmp11, %bb10 ], [ undef, %bb5 ] 23 br label %bb10 24 25bb10: ; preds = %bb7 26 %tmp11 = tail call ptr @patatino(ptr %tmp) 27 br label %bb7 28} 29 30declare ptr @patatino(ptr) 31