https://bugs.llvm.org/show_bug.cgi?id=42293
Bug ID: 42293
Summary: llvm-mc-7 fails to decode AVX-512 vshuff32x2,
vshuff64x2, vshuff32x2 and vshuff64x2 opcodes.
Product: tools
Version: 7.0
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: llvmc
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
llvm-mc-7 fails to decode opcodes above.
e.g.
echo "0x62 0xf3 0x75 0x08 0x23 0xc2 0x25" | /usr/bin/llvm-mc-7 -disassemble
-triple=x86_64
.text
<stdin>:1:1: warning: invalid instruction encoding
0x62 0xf3 0x75 0x08 0x23 0xc2 0x25
^
<stdin>:1:26: warning: invalid instruction encoding
0x62 0xf3 0x75 0x08 0x23 0xc2 0x25
^
<stdin>:1:31: warning: invalid instruction encoding
0x62 0xf3 0x75 0x08 0x23 0xc2 0x25
^
Should be (e.g. from binutils)
objdump -d test | grep shuf
5fe: 62 f3 75 08 23 c2 25 vshuff32x4 $0x25,%xmm2,%xmm1,%xmm0
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