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author | Bruno Cardoso Lopes <bruno.cardoso@gmail.com> | 2010-07-06 22:36:24 +0000 |
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committer | Bruno Cardoso Lopes <bruno.cardoso@gmail.com> | 2010-07-06 22:36:24 +0000 |
commit | 07de40629f73fb018a2a7f0a5bbd1ee4defe95fd (patch) | |
tree | 531054d36f7bd8fc72c9751e407c279ee428eb77 /lib/Target/X86/X86InstrInfo.h | |
parent | c9af33c6854afe7b082af2d892ec5f05dfa383c7 (diff) | |
download | external_llvm-07de40629f73fb018a2a7f0a5bbd1ee4defe95fd.zip external_llvm-07de40629f73fb018a2a7f0a5bbd1ee4defe95fd.tar.gz external_llvm-07de40629f73fb018a2a7f0a5bbd1ee4defe95fd.tar.bz2 |
Add AVX vblendvpd, vblendvps and vpblendvb instructions
Update VEX encoding to support those new instructions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107715 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86InstrInfo.h')
-rw-r--r-- | lib/Target/X86/X86InstrInfo.h | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/lib/Target/X86/X86InstrInfo.h b/lib/Target/X86/X86InstrInfo.h index daf980e..0b45516 100644 --- a/lib/Target/X86/X86InstrInfo.h +++ b/lib/Target/X86/X86InstrInfo.h @@ -424,14 +424,22 @@ namespace X86II { // those enums below are used, TSFlags must be shifted right by 32 first. enum { //===------------------------------------------------------------------===// - // VEXPrefix - VEX prefixes are instruction prefixes used in AVX. + // VEX - A prefix used by AVX instructions + VEX = 1, + + // VEX_W is has a opcode specific functionality, but is used in the same + // way as REX_W is for regular SSE instructions. + VEX_W = 1 << 1, + // VEX_4V is used to specify an additional AVX/SSE register. Several 2 // address instructions in SSE are represented as 3 address ones in AVX // and the additional register is encoded in VEX_VVVV prefix. - // - VEX = 1, - VEX_W = 1 << 1, - VEX_4V = 1 << 2 + VEX_4V = 1 << 2, + + // VEX_I8IMM specifies that the last register used in a AVX instruction, + // must be encoded in the i8 immediate field. This usually happens in + // instructions with 4 operands. + VEX_I8IMM = 1 << 3 }; // getBaseOpcodeFor - This function returns the "base" X86 opcode for the |