https://bugs.kde.org/show_bug.cgi?id=498422
Bug ID: 498422
Summary: s390x: fix VLRL and VSTRL insns
Classification: Developer tools
Product: valgrind
Version: unspecified
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: vex
Assignee: jsew...@acm.org
Reporter: flo2...@eich-krohm.de
Target Milestone: ---
Decoding:
case 0xe60000000035ULL: s390_format_VSI_URDV(s390_irgen_VLRL,
VSI_v1(ovl),...
case 0xe6000000003dULL: s390_format_VSI_URDV(s390_irgen_VSTRL,
VSI_v1(ovl),...
With:
s390_format_VSI_URDV(const HChar *(*irgen)(UChar v1, IRTemp op2addr, UChar i3),
UChar v1, UChar b2, UChar d2, UChar i3, UChar rxb)
However, d2 is a 12-bit wide displacement. So it cannot possibly be represented
with an UChar.
Use UShort instead.
Adding a testcase is left as an exercise :)
Seriously, this was found with by disasm-test (#498037) which I'm in the
process of extending
such that it covers all supported vector insns (not just the ones that have
extended mnemonics).
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