From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexey Dobriyan Subject: segfaults in pathological cases from gcc testsuite Date: Mon, 22 Oct 2007 19:24:59 +0400 Message-ID: <20071022152459.GE6271@localhost.sw.ru> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mailhub.sw.ru ([195.214.233.200]:46834 "EHLO relay.sw.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751530AbXJVPZJ (ORCPT ); Mon, 22 Oct 2007 11:25:09 -0400 Content-Disposition: inline Sender: linux-sparse-owner@vger.kernel.org List-Id: linux-sparse@vger.kernel.org To: linux-sparse@vger.kernel.org Cc: adobriyan@gmail.com FWIW, I fed full gcc tree to sparse not only testsuite. Suprisingly it crashed only in two places: -------------------------------------------------------- gcc/testsuite/gcc.c-torture/compile/limits-exprparen.c #define LBR1 ( ( ( ( ( ( ( ( ( ( #define LBR2 LBR1 LBR1 LBR1 LBR1 LBR1 LBR1 LBR1 LBR1 LBR1 LBR1 #define LBR3 LBR2 LBR2 LBR2 LBR2 LBR2 LBR2 LBR2 LBR2 LBR2 LBR2 #define LBR4 LBR3 LBR3 LBR3 LBR3 LBR3 LBR3 LBR3 LBR3 LBR3 LBR3 #define LBR5 LBR4 LBR4 LBR4 LBR4 LBR4 LBR4 LBR4 LBR4 LBR4 LBR4 #define LBR6 LBR5 LBR5 LBR5 LBR5 LBR5 LBR5 LBR5 LBR5 LBR5 LBR5 #define RBR1 ) ) ) ) ) ) ) ) ) ) #define RBR2 RBR1 RBR1 RBR1 RBR1 RBR1 RBR1 RBR1 RBR1 RBR1 RBR1 #define RBR3 RBR2 RBR2 RBR2 RBR2 RBR2 RBR2 RBR2 RBR2 RBR2 RBR2 #define RBR4 RBR3 RBR3 RBR3 RBR3 RBR3 RBR3 RBR3 RBR3 RBR3 RBR3 #define RBR5 RBR4 RBR4 RBR4 RBR4 RBR4 RBR4 RBR4 RBR4 RBR4 RBR4 #define RBR6 RBR5 RBR5 RBR5 RBR5 RBR5 RBR5 RBR5 RBR5 RBR5 RBR5 int q5_var = LBR4 0 RBR4; -------------------------------------------------------- gcc/testsuite/gcc.c-torture/compile/limits-caselabels.c #define LIM1(x) x##0: x##1: x##2: x##3: x##4: x##5: x##6: x##7: x##8: x##9: #define LIM2(x) LIM1(x##0) LIM1(x##1) LIM1(x##2) LIM1(x##3) LIM1(x##4) \ LIM1(x##5) LIM1(x##6) LIM1(x##7) LIM1(x##8) LIM1(x##9) #define LIM3(x) LIM2(x##0) LIM2(x##1) LIM2(x##2) LIM2(x##3) LIM2(x##4) \ LIM2(x##5) LIM2(x##6) LIM2(x##7) LIM2(x##8) LIM2(x##9) #define LIM4(x) LIM3(x##0) LIM3(x##1) LIM3(x##2) LIM3(x##3) LIM3(x##4) \ LIM3(x##5) LIM3(x##6) LIM3(x##7) LIM3(x##8) LIM3(x##9) #define LIM5(x) LIM4(x##0) LIM4(x##1) LIM4(x##2) LIM4(x##3) LIM4(x##4) \ LIM4(x##5) LIM4(x##6) LIM4(x##7) LIM4(x##8) LIM4(x##9) #define LIM6(x) LIM5(x##0) LIM5(x##1) LIM5(x##2) LIM5(x##3) LIM5(x##4) \ LIM5(x##5) LIM5(x##6) LIM5(x##7) LIM5(x##8) LIM5(x##9) #define LIM7(x) LIM6(x##0) LIM6(x##1) LIM6(x##2) LIM6(x##3) LIM6(x##4) \ LIM6(x##5) LIM6(x##6) LIM6(x##7) LIM6(x##8) LIM6(x##9) void q19_func (long i) { switch (i) { LIM5 (case 1) break; } } --------------------------------------------------------