[X86] Convert all the i8imm used by SSE and AVX instructions to u8imm.
This makes the assembler check their size and removes a hack from the disassembler to avoid sign extending the immediate.
llvm-svn: 226645
diff --git a/llvm/lib/Target/X86/Disassembler/X86Disassembler.cpp b/llvm/lib/Target/X86/Disassembler/X86Disassembler.cpp
index 1c56182..3e818b4 100644
--- a/llvm/lib/Target/X86/Disassembler/X86Disassembler.cpp
+++ b/llvm/lib/Target/X86/Disassembler/X86Disassembler.cpp
@@ -320,24 +320,12 @@
// By default sign-extend all X86 immediates based on their encoding.
else if (type == TYPE_IMM8 || type == TYPE_IMM16 || type == TYPE_IMM32 ||
type == TYPE_IMM64 || type == TYPE_IMMv) {
- uint32_t Opcode = mcInst.getOpcode();
switch (operand.encoding) {
default:
break;
case ENCODING_IB:
- // Special case those X86 instructions that use the imm8 as a set of
- // bits, bit count, etc. and are not sign-extend.
- if (Opcode != X86::BLENDPSrri && Opcode != X86::BLENDPDrri &&
- Opcode != X86::PBLENDWrri && Opcode != X86::MPSADBWrri &&
- Opcode != X86::DPPSrri && Opcode != X86::DPPDrri &&
- Opcode != X86::INSERTPSrr && Opcode != X86::VBLENDPSYrri &&
- Opcode != X86::VBLENDPSYrmi && Opcode != X86::VBLENDPDYrri &&
- Opcode != X86::VBLENDPDYrmi && Opcode != X86::VPBLENDWrri &&
- Opcode != X86::VMPSADBWrri && Opcode != X86::VDPPSYrri &&
- Opcode != X86::VDPPSYrmi && Opcode != X86::VDPPDrri &&
- Opcode != X86::VINSERTPSrr)
- if(immediate & 0x80)
- immediate |= ~(0xffull);
+ if(immediate & 0x80)
+ immediate |= ~(0xffull);
break;
case ENCODING_IW:
if(immediate & 0x8000)