diff options
Diffstat (limited to 'lib/Target/X86/X86Instr64bit.td')
| -rw-r--r-- | lib/Target/X86/X86Instr64bit.td | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/lib/Target/X86/X86Instr64bit.td b/lib/Target/X86/X86Instr64bit.td index 5c7f093..04a76d5 100644 --- a/lib/Target/X86/X86Instr64bit.td +++ b/lib/Target/X86/X86Instr64bit.td @@ -61,6 +61,13 @@ def i64immSExt8 : PatLeaf<(i64 imm), [{ return (int64_t)N->getValue() == (int8_t)N->getValue(); }]>; +def i64immFFFFFFFF : PatLeaf<(i64 imm), [{ + // i64immFFFFFFFF - True if this is a specific constant we can't write in + // tblgen files. + return N->getValue() == 0x00000000FFFFFFFFULL; +}]>; + + def sextloadi64i8 : PatFrag<(ops node:$ptr), (i64 (sextloadi8 node:$ptr))>; def sextloadi64i16 : PatFrag<(ops node:$ptr), (i64 (sextloadi16 node:$ptr))>; def sextloadi64i32 : PatFrag<(ops node:$ptr), (i64 (sextloadi32 node:$ptr))>; @@ -1091,6 +1098,12 @@ def PsMOVZX64rm32: I<0x8B, MRMSrcMem, (outs GR64:$dst), (ins i32mem:$src), "mov{l}\t{$src, ${dst:subreg32}|${dst:subreg32}, $src}", [(set GR64:$dst, (zextloadi64i32 addr:$src))]>; +/// PsAND64rrFFFFFFFF - r = r & (2^32-1) +def PsAND64rrFFFFFFFF + : I<0x89, MRMDestReg, (outs GR64:$dst), (ins GR64:$src), + "mov{l}\t{${src:subreg32}, ${dst:subreg32}|${dst:subreg32}, ${src:subreg32}}", + [(set GR64:$dst, (and GR64:$src, i64immFFFFFFFF))]>; + // Alias instructions that map movr0 to xor. Use xorl instead of xorq; it's // equivalent due to implicit zero-extending, and it sometimes has a smaller |