1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2 ; RUN: opt < %s -basicaa -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. 5 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 6 7 define 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 i8* [ [[TMP:%.*]]11, %bb10 ], [ undef, %bb5 ] 13 ; CHECK-NEXT: br label %bb10 14 ; CHECK: bb10: 15 ; CHECK-NEXT: [[TMP11:%.*]] = tail call i8* @patatino(i8* [[TMP]]) 16 ; CHECK-NEXT: br label %bb7 17 ; 18 bb5: 19 br label %bb7 20 21 bb7: ; preds = %bb10, %bb5 22 %tmp = phi i8* [ %tmp11, %bb10 ], [ undef, %bb5 ] 23 br label %bb10 24 25 bb10: ; preds = %bb7 26 %tmp11 = tail call i8* @patatino(i8* %tmp) 27 br label %bb7 28 } 29 30 declare i8* @patatino(i8*) 31
