Bug 387664 changes the default settings for accurate definedness checking
for {Add,Sub}{32,64} and {CmpEQ,CmpNE}{8,16,32,64}. This fix updates the
vbit tester (memcheck/tests/vbit-test) to test the accurate versions of
these, and thereby fixes a regression caused by
e847cb5429 as committed for bug 387664.
The ISA 2.07 support adds new Iops as well as support for some existing
Iops. None of these Iops have been enabled in the vbit tester. This commit
adds the needed support to the files in memcheck/tests/vbit-test.
These changes add support for additional immediate operands and additional
undefined bit checking functions.
There are additional changes to files VEX/priv/ir_inject.c and VEX/pub/libvex.h
that are in VEX commit 3202
Bugzilla 354797 was created for this issue.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15720
The Iop_CmpORD class of iops support the POWER specific comparison
instructions. The instructions take two 32-bit or 64-bit operands
and produce a result of the same size. However, only the lower bits
of the result are set by the instruction. The bits are set by the instruction
to indicate if the comparison is "less then", "greater then", or "equal".
This patch adds support to the V-bit tester to verify the propagation
of the undefined bits in the inputs to the output for the Iop_CmpORd iops.
The output bits are always set to undefined if any of the input bits are not
defined.
This patch is for bugzilla 310169
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13123
The tester is located in memcheck/tests/vbit-test.
It needs the following support on the valgrind / VEX side:
(1) a new client request VG_USERREQ__VEX_INIT_FOR_IRI
(2) a new "special instruction" on all architectures inserted via
VALGRIND_VEX_INJECT_IR
(3) VEX changes to detect the special insn and insert IR (ir_inject.c)
The README file in vbit-test has some more information.
See also VEX r2490. Fixes bugzilla #300102.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@12906
