maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

[X86] Add NoAVX predicates to the patterns for the legacy encoded PCLMUL and AES instructions. 

Previously we were just relying on pattern order to define precedence. Which works, but isn't the best way.

llvm-svn: 313471
This commit is contained in:
Craig Topper 2017-09-16 23:18:48 +00:00
parent dbf17cf048
commit ffca0ff9bf
2 changed files with 4 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
llvm/lib/Target/X86/X86InstrFormats.td
View File

@ -839,18 +839,18 @@ class AVX512<bits<8> o, Format F, dag outs, dag ins, string asm,
class AES8I<bits<8> o, Format F, dag outs, dag ins, string asm,
list<dag>pattern, InstrItinClass itin = IIC_AES>
: I<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, T8PD,
Requires<[HasAES]>;
Requires<[NoAVX, HasAES]>;
class AESAI<bits<8> o, Format F, dag outs, dag ins, string asm,
list<dag> pattern, InstrItinClass itin = NoItinerary>
: Ii8<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, TAPD,
Requires<[HasAES]>;
Requires<[NoAVX, HasAES]>;
// PCLMUL Instruction Templates
class PCLMULIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
list<dag>pattern, InstrItinClass itin = NoItinerary>
: Ii8<o, F, outs, ins, asm, pattern, itin, SSEPackedInt>, TAPD,
Requires<[HasPCLMUL]>;
Requires<[NoAVX, HasPCLMUL]>;
class AVXPCLMULIi8<bits<8> o, Format F, dag outs, dag ins, string asm,
list<dag>pattern, InstrItinClass itin = NoItinerary>

1
llvm/lib/Target/X86/X86InstrInfo.td
View File

@ -801,6 +801,7 @@ def UseSSE41 : Predicate<"Subtarget->hasSSE41() && !Subtarget->hasAVX()">;
def HasSSE42 : Predicate<"Subtarget->hasSSE42()">;
def UseSSE42 : Predicate<"Subtarget->hasSSE42() && !Subtarget->hasAVX()">;
def HasSSE4A : Predicate<"Subtarget->hasSSE4A()">;
def NoAVX : Predicate<"!Subtarget->hasAVX()">;
def HasAVX : Predicate<"Subtarget->hasAVX()">;
def HasAVX2 : Predicate<"Subtarget->hasAVX2()">;
def HasAVX1Only : Predicate<"Subtarget->hasAVX() && !Subtarget->hasAVX2()">;