From fb8d279bc011b31d0765dc7ca59afea324fd0d0c Mon Sep 17 00:00:00 2001 From: Mark Mendell Date: Tue, 31 Mar 2015 22:16:59 -0400 Subject: [optimizing] Implement x86/x86_64 math intrinsics Implement floor/ceil/round/RoundFloat on x86 and x86_64. Implement RoundDouble on x86_64. Add support for roundss and roundsd on both architectures. Support them in the disassembler as well. Add the instruction set features for x86, as the 'round' instruction is only supported if SSE4.1 is supported. Fix the tests to handle the addition of passing the instruction set features to x86 and x86_64. Add assembler tests for roundsd and roundss to x86_64 assembler tests. Change-Id: I9742d5930befb0bbc23f3d6c83ce0183ed9fe04f Signed-off-by: Mark Mendell --- disassembler/disassembler_x86.cc | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'disassembler') diff --git a/disassembler/disassembler_x86.cc b/disassembler/disassembler_x86.cc index 203488d..a1834e1 100644 --- a/disassembler/disassembler_x86.cc +++ b/disassembler/disassembler_x86.cc @@ -561,6 +561,24 @@ DISASSEMBLER_ENTRY(cmp, instr++; if (prefix[2] == 0x66) { switch (*instr) { + case 0x0A: + opcode1 = "roundss"; + prefix[2] = 0; + has_modrm = true; + store = true; + src_reg_file = SSE; + dst_reg_file = SSE; + immediate_bytes = 1; + break; + case 0x0B: + opcode1 = "roundsd"; + prefix[2] = 0; + has_modrm = true; + store = true; + src_reg_file = SSE; + dst_reg_file = SSE; + immediate_bytes = 1; + break; case 0x14: opcode1 = "pextrb"; prefix[2] = 0; -- cgit v1.1