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* [Bug middle-end/64327] New: ../../gcc/gcc/rtlanal.c:4881:48: runtime error: shift exponent 4294967295 is too large for 64-bit type 'long unsigned int' @ 2014-12-16 8:49 trippels at gcc dot gnu.org 2014-12-17 13:11 ` [Bug middle-end/64327] " mpolacek at gcc dot gnu.org ` (5 more replies) 0 siblings, 6 replies; 7+ messages in thread From: trippels at gcc dot gnu.org @ 2014-12-16 8:49 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64327 Bug ID: 64327 Summary: ../../gcc/gcc/rtlanal.c:4881:48: runtime error: shift exponent 4294967295 is too large for 64-bit type 'long unsigned int' Product: gcc Version: 5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: middle-end Assignee: unassigned at gcc dot gnu.org Reporter: trippels at gcc dot gnu.org CC: dmalcolm at gcc dot gnu.org Running bootstrap-ubsan on x86_64 shows many instances of: ../../gcc/gcc/rtlanal.c:4881:48: runtime error: shift exponent 4294967295 is too large for 64-bit type 'long unsigned int' ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug middle-end/64327] ../../gcc/gcc/rtlanal.c:4881:48: runtime error: shift exponent 4294967295 is too large for 64-bit type 'long unsigned int' 2014-12-16 8:49 [Bug middle-end/64327] New: ../../gcc/gcc/rtlanal.c:4881:48: runtime error: shift exponent 4294967295 is too large for 64-bit type 'long unsigned int' trippels at gcc dot gnu.org @ 2014-12-17 13:11 ` mpolacek at gcc dot gnu.org 2015-07-13 7:45 ` zeccav at gmail dot com ` (4 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: mpolacek at gcc dot gnu.org @ 2014-12-17 13:11 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64327 Marek Polacek <mpolacek at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2014-12-17 CC| |mpolacek at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> --- I see that too. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug middle-end/64327] ../../gcc/gcc/rtlanal.c:4881:48: runtime error: shift exponent 4294967295 is too large for 64-bit type 'long unsigned int' 2014-12-16 8:49 [Bug middle-end/64327] New: ../../gcc/gcc/rtlanal.c:4881:48: runtime error: shift exponent 4294967295 is too large for 64-bit type 'long unsigned int' trippels at gcc dot gnu.org 2014-12-17 13:11 ` [Bug middle-end/64327] " mpolacek at gcc dot gnu.org @ 2015-07-13 7:45 ` zeccav at gmail dot com 2015-07-13 7:50 ` trippels at gcc dot gnu.org ` (3 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: zeccav at gmail dot com @ 2015-07-13 7:45 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64327 Vittorio Zecca <zeccav at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |zeccav at gmail dot com --- Comment #2 from Vittorio Zecca <zeccav at gmail dot com> --- Please see bug 66853, it appears to duplicate this one. With a small reproducer included. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug middle-end/64327] ../../gcc/gcc/rtlanal.c:4881:48: runtime error: shift exponent 4294967295 is too large for 64-bit type 'long unsigned int' 2014-12-16 8:49 [Bug middle-end/64327] New: ../../gcc/gcc/rtlanal.c:4881:48: runtime error: shift exponent 4294967295 is too large for 64-bit type 'long unsigned int' trippels at gcc dot gnu.org 2014-12-17 13:11 ` [Bug middle-end/64327] " mpolacek at gcc dot gnu.org 2015-07-13 7:45 ` zeccav at gmail dot com @ 2015-07-13 7:50 ` trippels at gcc dot gnu.org 2015-07-14 7:36 ` zeccav at gmail dot com ` (2 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: trippels at gcc dot gnu.org @ 2015-07-13 7:50 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64327 --- Comment #3 from Markus Trippelsdorf <trippels at gcc dot gnu.org> --- *** Bug 66853 has been marked as a duplicate of this bug. *** ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug middle-end/64327] ../../gcc/gcc/rtlanal.c:4881:48: runtime error: shift exponent 4294967295 is too large for 64-bit type 'long unsigned int' 2014-12-16 8:49 [Bug middle-end/64327] New: ../../gcc/gcc/rtlanal.c:4881:48: runtime error: shift exponent 4294967295 is too large for 64-bit type 'long unsigned int' trippels at gcc dot gnu.org ` (2 preceding siblings ...) 2015-07-13 7:50 ` trippels at gcc dot gnu.org @ 2015-07-14 7:36 ` zeccav at gmail dot com 2015-07-20 5:20 ` zeccav at gmail dot com 2015-08-23 5:31 ` zeccav at gmail dot com 5 siblings, 0 replies; 7+ messages in thread From: zeccav at gmail dot com @ 2015-07-14 7:36 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64327 --- Comment #4 from Vittorio Zecca <zeccav at gmail dot com> --- For your convenience I repeat here the reproducer: /* from gcc file fixopts.c */ /* must be compiled with -O2 */ /*gcc-5.1.0/gcc/rtlanal.c:4911:48: runtime error: shift exponent 4294967295 is too large for 64-bit type 'long unsigned int'*/ /*on source line "return nonzero & ((unsigned HOST_WIDE_INT) 1 << (bitwidth - 1))"*/ /* because unsigned int bitwidth is zero and bitwitdth-1 is 4294967295 on my x86-64 */ /* I did double check with: * bitwidth = GET_MODE_PRECISION (mode); * gcc_assert(bitwidth); */ /* the bug appears compiling fixopts.c crc32.c md5.c and many Fedora 21 kernel files*/ /* 66853 duplicato di 64327 */ int strcmp(const char *s1, const char *s2); int fixinc_mode; /* must be outside main for bug to appear */ int main (void) { const char *pz; if (strcmp (pz, "true") ) fixinc_mode = 0; } ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug middle-end/64327] ../../gcc/gcc/rtlanal.c:4881:48: runtime error: shift exponent 4294967295 is too large for 64-bit type 'long unsigned int' 2014-12-16 8:49 [Bug middle-end/64327] New: ../../gcc/gcc/rtlanal.c:4881:48: runtime error: shift exponent 4294967295 is too large for 64-bit type 'long unsigned int' trippels at gcc dot gnu.org ` (3 preceding siblings ...) 2015-07-14 7:36 ` zeccav at gmail dot com @ 2015-07-20 5:20 ` zeccav at gmail dot com 2015-08-23 5:31 ` zeccav at gmail dot com 5 siblings, 0 replies; 7+ messages in thread From: zeccav at gmail dot com @ 2015-07-20 5:20 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64327 --- Comment #5 from Vittorio Zecca <zeccav at gmail dot com> --- In 5.2.0 too. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug middle-end/64327] ../../gcc/gcc/rtlanal.c:4881:48: runtime error: shift exponent 4294967295 is too large for 64-bit type 'long unsigned int' 2014-12-16 8:49 [Bug middle-end/64327] New: ../../gcc/gcc/rtlanal.c:4881:48: runtime error: shift exponent 4294967295 is too large for 64-bit type 'long unsigned int' trippels at gcc dot gnu.org ` (4 preceding siblings ...) 2015-07-20 5:20 ` zeccav at gmail dot com @ 2015-08-23 5:31 ` zeccav at gmail dot com 5 siblings, 0 replies; 7+ messages in thread From: zeccav at gmail dot com @ 2015-08-23 5:31 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64327 --- Comment #6 from Vittorio Zecca <zeccav at gmail dot com> --- I "fixed" this one by substituting rtlanal.c:4907 if (bitwidth > HOST_BITS_PER_WIDE_INT ) with if (bitwidth > HOST_BITS_PER_WIDE_INT || !bitwidth) ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2015-08-23 5:31 UTC | newest] Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2014-12-16 8:49 [Bug middle-end/64327] New: ../../gcc/gcc/rtlanal.c:4881:48: runtime error: shift exponent 4294967295 is too large for 64-bit type 'long unsigned int' trippels at gcc dot gnu.org 2014-12-17 13:11 ` [Bug middle-end/64327] " mpolacek at gcc dot gnu.org 2015-07-13 7:45 ` zeccav at gmail dot com 2015-07-13 7:50 ` trippels at gcc dot gnu.org 2015-07-14 7:36 ` zeccav at gmail dot com 2015-07-20 5:20 ` zeccav at gmail dot com 2015-08-23 5:31 ` zeccav at gmail dot com
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