From 5a5c3debfede40be3bdfd5c03a4dbb3ad2d6db21 Mon Sep 17 00:00:00 2001 From: Chen Gang Date: Wed, 24 Jun 2015 04:22:39 +0000 Subject: [PATCH] re PR target/65803 (blackfin: internal compiler error: segment fault linux kernel) PR target/65803 * config/bfin/bfin.c (hwloop_optimize): Initialize JUMP_LABEL for newly created jump. PR target/65803 * gcc.c-torture/pr65803.c: New test. From-SVN: r224866 --- gcc/ChangeLog | 6 +++++ gcc/config/bfin/bfin.c | 4 ++- gcc/testsuite/ChangeLog | 5 ++++ gcc/testsuite/gcc.c-torture/compile/pr65803.c | 25 +++++++++++++++++++ 4 files changed, 39 insertions(+), 1 deletion(-) create mode 100644 gcc/testsuite/gcc.c-torture/compile/pr65803.c diff --git a/gcc/ChangeLog b/gcc/ChangeLog index ab34ffcb2b2..cbd8d88eae5 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2015-06-23 Chen Gang + + PR target/65803 + * config/bfin/bfin.c (hwloop_optimize): Initialize + JUMP_LABEL for newly created jump. + 2015-06-23 Tristan Gingold * collect-utils.c (collect_wait): Unlink the response file here diff --git a/gcc/config/bfin/bfin.c b/gcc/config/bfin/bfin.c index 3b4b54e57e8..594272ff12f 100644 --- a/gcc/config/bfin/bfin.c +++ b/gcc/config/bfin/bfin.c @@ -3775,7 +3775,9 @@ hwloop_optimize (hwloop_info loop) } else { - emit_jump_insn (gen_jump (label)); + rtx_insn *ret = emit_jump_insn (gen_jump (label)); + JUMP_LABEL (ret) = label; + LABEL_NUSES (label)++; seq_end = emit_barrier (); } } diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index e95ed37dbcb..5fe00e16862 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2015-06-23 Chen Gang + + PR target/65803 + * gcc.c-torture/pr65803.c: New test. + 2015-06-23 Patrick Palka PR c++/30044 diff --git a/gcc/testsuite/gcc.c-torture/compile/pr65803.c b/gcc/testsuite/gcc.c-torture/compile/pr65803.c new file mode 100644 index 00000000000..57c667652cb --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/compile/pr65803.c @@ -0,0 +1,25 @@ +/* { dg-options "-fno-strict-overflow" } */ +typedef unsigned char __uint8_t; +typedef __uint8_t uint8_t; +typedef uint8_t u8_t; +typedef struct ip_addr ip_addr_t; +char * +ipaddr_ntoa_r (const ip_addr_t * addr, char *buf, int buflen) +{ + char inv[3]; + char *rp; + u8_t *ap; + u8_t n; + u8_t i; + int len = 0; + for (n = 0; n < 4; n++) + { + while (*ap); + while (i--) + { + if (len++ >= buflen) + return ((void *) 0); + *rp++ = inv[i]; + } ap++; + } +} -- 2.30.2