Add a note about sext from i1 plus flags use.

[oota-llvm.git] / lib / Target / X86 / X86InstrInfo.td

diff --git a/lib/Target/X86/X86InstrInfo.td b/lib/Target/X86/X86InstrInfo.td
index f5a5803dbf2adea29072f0cad10ee434da4e1243..f40847f1e47ca1a4da3136e179af6612f5bde450 100644 (file)
--- a/lib/Target/X86/X86InstrInfo.td
+++ b/lib/Target/X86/X86InstrInfo.td
@@ -166,11 +166,12 @@ def HasSSE1      : Predicate<"Subtarget->hasSSE1()">;
 def HasSSE2      : Predicate<"Subtarget->hasSSE2()">;
 def HasSSE3      : Predicate<"Subtarget->hasSSE3()">;
 def HasSSSE3     : Predicate<"Subtarget->hasSSSE3()">;
+def HasSSE41     : Predicate<"Subtarget->hasSSE41()">;
+def HasSSE42     : Predicate<"Subtarget->hasSSE42()">;
 def FPStackf32   : Predicate<"!Subtarget->hasSSE1()">;
 def FPStackf64   : Predicate<"!Subtarget->hasSSE2()">;
 def In32BitMode  : Predicate<"!Subtarget->is64Bit()">;
 def In64BitMode  : Predicate<"Subtarget->is64Bit()">;
-def HasLow4G     : Predicate<"Subtarget->hasLow4GUserSpaceAddress()">;
 def SmallCode    : Predicate<"TM.getCodeModel() == CodeModel::Small">;
 def NotSmallCode : Predicate<"TM.getCodeModel() != CodeModel::Small">;
 def IsStatic     : Predicate<"TM.getRelocationModel() == Reloc::Static">;
@@ -226,8 +227,6 @@ def loadf32 : PatFrag<(ops node:$ptr), (f32 (load node:$ptr))>;
 def loadf64 : PatFrag<(ops node:$ptr), (f64 (load node:$ptr))>;
 def loadf80 : PatFrag<(ops node:$ptr), (f80 (load node:$ptr))>;
 
-def sextloadi16i1  : PatFrag<(ops node:$ptr), (i16 (sextloadi1 node:$ptr))>;
-def sextloadi32i1  : PatFrag<(ops node:$ptr), (i32 (sextloadi1 node:$ptr))>;
 def sextloadi16i8  : PatFrag<(ops node:$ptr), (i16 (sextloadi8 node:$ptr))>;
 def sextloadi32i8  : PatFrag<(ops node:$ptr), (i32 (sextloadi8 node:$ptr))>;
 def sextloadi32i16 : PatFrag<(ops node:$ptr), (i32 (sextloadi16 node:$ptr))>;
@@ -2608,9 +2607,7 @@ def : Pat<(parallel (X86cmp GR16:$src1, 0), (implicit EFLAGS)),
 def : Pat<(parallel (X86cmp GR32:$src1, 0), (implicit EFLAGS)),
           (TEST32rr GR32:$src1, GR32:$src1)>;
 
-// {s|z}extload bool -> {s|z}extload byte
-def : Pat<(sextloadi16i1 addr:$src), (MOVSX16rm8 addr:$src)>;
-def : Pat<(sextloadi32i1 addr:$src), (MOVSX32rm8 addr:$src)>;
+// zextload bool -> zextload byte
 def : Pat<(zextloadi8i1  addr:$src), (MOV8rm     addr:$src)>;
 def : Pat<(zextloadi16i1 addr:$src), (MOVZX16rm8 addr:$src)>;
 def : Pat<(zextloadi32i1 addr:$src), (MOVZX32rm8 addr:$src)>;