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genmatch infinite loop during bootstrap on AIX
- From: David Edelsohn <dje dot gcc at gmail dot com>
- To: Richard Biener <rguenther at suse dot de>
- Cc: GCC Patches <gcc-patches at gcc dot gnu dot org>
- Date: Fri, 24 Oct 2014 19:33:39 -0400
- Subject: genmatch infinite loop during bootstrap on AIX
- Authentication-results: sourceware.org; auth=none
genmatch is hanging when bootstrapping on AIX (gcc111). When I attach
to the process:
#0 0x1007efac in std::basic_string<char, std::char_traits<char>,
std::allocator<char> >::basic_string ()
#1 0x1000e6b0 in _ZN6parser13parse_captureEP7operand (this=0x300594b8, op=0x0)
at /home/dje/src/src/gcc/genmatch.c:2607
#2 0x1000e9f0 in _ZN6parser10parse_exprEv (this=0x2ff20208)
at /home/dje/src/src/gcc/genmatch.c:2669
#3 0x1000ee38 in _ZN6parser8parse_opEv (this=0x2ff20208)
at /home/dje/src/src/gcc/genmatch.c:2728
#4 0x1000efc4 in
_ZN6parser14parse_simplifyEjR3vecIP8simplify7va_heap6vl_ptrEP12predicate_idP4expr
(this=0x2ff20208, match_location=4614, simplifiers=...,
matcher=0x0, result=0x0) at /home/dje/src/src/gcc/genmatch.c:2792
#5 0x100102fc in _ZN6parser13parse_patternEv (this=0x2ff20208)
at /home/dje/src/src/gcc/genmatch.c:3052
#6 0x10010c0c in _ZN6parser9parse_forEj (this=0x2ff20208)
at /home/dje/src/src/gcc/genmatch.c:2991
#7 0x10010350 in _ZN6parser13parse_patternEv (this=0x2ff20208)
at /home/dje/src/src/gcc/genmatch.c:3090
#8 0x1001122c in _ZN6parserC2EP10cpp_reader (this=0x2ff20208, r_=0x3003bbec)
at /home/dje/src/src/gcc/genmatch.c:3122
#9 0x10004acc in main (argc=<error reading variable>,
argv=<error reading variable>) at _start_ :3204