[Bug c/79471] New: valgrind error for gcc.c-torture/compile/limits-fnargs.c
dcb314 at hotmail dot com
gcc-bugzilla@gcc.gnu.org
Sat Feb 11 21:20:00 GMT 2017
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79471
Bug ID: 79471
Summary: valgrind error for
gcc.c-torture/compile/limits-fnargs.c
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Target Milestone: ---
I just built a valgrind version of gcc trunk and tried
out the gcc testsuite on it.
For testcase gcc.c-torture/compile/limits-fnargs.c, I got
./gcc.c-torture/compile/limits-fnargs.c
==21687== Invalid write of size 8
==21687== at 0x6F33B9: expand_call(tree_node*, rtx_def*, int) (calls.c:3266)
==21687== by 0x7DFF36: expand_expr_real_1(tree_node*, rtx_def*,
machine_mode, expand_modifier, rtx_def**, bool) (expr.c:10785)
==21687== by 0x703E54: expand_expr (expr.h:276)
==21687== by 0x703E54: expand_call_stmt (cfgexpand.c:2658)
Admittedly an extreme case, but I think gcc shouldn't be doing
invalid writes.
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