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Add HasPOPCNT predicate to the POPCNT instructions. Also mark POPCNT as modifying EFLAGS. 

llvm-svn: 141656
This commit is contained in:
Craig Topper 2011-10-11 07:13:09 +00:00
parent ffc3bd0e08
commit 63bc541196
2 changed files with 21 additions and 18 deletions
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1
llvm/lib/Target/X86/X86InstrInfo.td
View File

@ -469,6 +469,7 @@ def HasSSE4A : Predicate<"Subtarget->hasSSE4A()">;
def HasAVX : Predicate<"Subtarget->hasAVX()">;
def HasXMMInt : Predicate<"Subtarget->hasXMMInt()">;
def HasPOPCNT : Predicate<"Subtarget->hasPOPCNT()">;
def HasAES : Predicate<"Subtarget->hasAES()">;
def HasCLMUL : Predicate<"Subtarget->hasCLMUL()">;
def HasFMA3 : Predicate<"Subtarget->hasFMA3()">;

38
llvm/lib/Target/X86/X86InstrSSE.td
View File

@ -5700,26 +5700,28 @@ defm VTESTPDY : avx_bittest<0x0F, "vtestpd", VR256, f256mem, memopv4f64, v4f64>;
// SSE4.1 - Misc Instructions
//===----------------------------------------------------------------------===//
def POPCNT16rr : I<0xB8, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
"popcnt{w}\t{$src, $dst|$dst, $src}",
[(set GR16:$dst, (ctpop GR16:$src))]>, OpSize, XS;
def POPCNT16rm : I<0xB8, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
"popcnt{w}\t{$src, $dst|$dst, $src}",
[(set GR16:$dst, (ctpop (loadi16 addr:$src)))]>, OpSize, XS;
let Defs = [EFLAGS], Predicates = [HasPOPCNT] in {
def POPCNT16rr : I<0xB8, MRMSrcReg, (outs GR16:$dst), (ins GR16:$src),
"popcnt{w}\t{$src, $dst|$dst, $src}",
[(set GR16:$dst, (ctpop GR16:$src))]>, OpSize, XS;
def POPCNT16rm : I<0xB8, MRMSrcMem, (outs GR16:$dst), (ins i16mem:$src),
"popcnt{w}\t{$src, $dst|$dst, $src}",
[(set GR16:$dst, (ctpop (loadi16 addr:$src)))]>, OpSize, XS;
def POPCNT32rr : I<0xB8, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
"popcnt{l}\t{$src, $dst|$dst, $src}",
[(set GR32:$dst, (ctpop GR32:$src))]>, XS;
def POPCNT32rm : I<0xB8, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
"popcnt{l}\t{$src, $dst|$dst, $src}",
[(set GR32:$dst, (ctpop (loadi32 addr:$src)))]>, XS;
def POPCNT32rr : I<0xB8, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
"popcnt{l}\t{$src, $dst|$dst, $src}",
[(set GR32:$dst, (ctpop GR32:$src))]>, XS;
def POPCNT32rm : I<0xB8, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
"popcnt{l}\t{$src, $dst|$dst, $src}",
[(set GR32:$dst, (ctpop (loadi32 addr:$src)))]>, XS;
def POPCNT64rr : RI<0xB8, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
"popcnt{q}\t{$src, $dst|$dst, $src}",
[(set GR64:$dst, (ctpop GR64:$src))]>, XS;
def POPCNT64rm : RI<0xB8, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
"popcnt{q}\t{$src, $dst|$dst, $src}",
[(set GR64:$dst, (ctpop (loadi64 addr:$src)))]>, XS;
def POPCNT64rr : RI<0xB8, MRMSrcReg, (outs GR64:$dst), (ins GR64:$src),
"popcnt{q}\t{$src, $dst|$dst, $src}",
[(set GR64:$dst, (ctpop GR64:$src))]>, XS;
def POPCNT64rm : RI<0xB8, MRMSrcMem, (outs GR64:$dst), (ins i64mem:$src),
"popcnt{q}\t{$src, $dst|$dst, $src}",
[(set GR64:$dst, (ctpop (loadi64 addr:$src)))]>, XS;
}