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[X86] Require HasBMI2 for the new BZHI tablegen patterns.

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Evidently tablegen doesn't infer this from the HasBMI2 predicate on the BZHI
instructions. This should fix the recent bot failures.

llvm-svn: 206885
This commit is contained in:
Lang Hames 2014-04-22 12:04:53 +00:00
parent 5fa2a3546f
commit 883a05a1d6
1 changed files with 18 additions and 16 deletions
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34
lib/Target/X86/X86InstrInfo.td
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@ -2113,26 +2113,28 @@ def BZHIMask : ImmLeaf<i64, [{
return isMask_64(Imm) && (CountTrailingOnes_64(Imm) > 32);
}]>;
def : Pat<(and GR64:$src, BZHIMask:$mask),
(BZHI64rr GR64:$src,
(INSERT_SUBREG (i64 (IMPLICIT_DEF)),
(MOV8ri (CountTrailingOnes imm:$mask)), sub_8bit))>;
let Predicates = [HasBMI2] in {
def : Pat<(and GR64:$src, BZHIMask:$mask),
(BZHI64rr GR64:$src,
(INSERT_SUBREG (i64 (IMPLICIT_DEF)),
(MOV8ri (CountTrailingOnes imm:$mask)), sub_8bit))>;
def : Pat<(and GR32:$src, (add (shl 1, GR8:$lz), -1)),
(BZHI32rr GR32:$src,
(INSERT_SUBREG (i32 (IMPLICIT_DEF)), GR8:$lz, sub_8bit))>;
def : Pat<(and GR32:$src, (add (shl 1, GR8:$lz), -1)),
(BZHI32rr GR32:$src,
(INSERT_SUBREG (i32 (IMPLICIT_DEF)), GR8:$lz, sub_8bit))>;
def : Pat<(and (loadi32 addr:$src), (add (shl 1, GR8:$lz), -1)),
(BZHI32rm addr:$src,
(INSERT_SUBREG (i32 (IMPLICIT_DEF)), GR8:$lz, sub_8bit))>;
def : Pat<(and (loadi32 addr:$src), (add (shl 1, GR8:$lz), -1)),
(BZHI32rm addr:$src,
(INSERT_SUBREG (i32 (IMPLICIT_DEF)), GR8:$lz, sub_8bit))>;
def : Pat<(and GR64:$src, (add (shl 1, GR8:$lz), -1)),
(BZHI64rr GR64:$src,
(INSERT_SUBREG (i64 (IMPLICIT_DEF)), GR8:$lz, sub_8bit))>;
def : Pat<(and GR64:$src, (add (shl 1, GR8:$lz), -1)),
(BZHI64rr GR64:$src,
(INSERT_SUBREG (i64 (IMPLICIT_DEF)), GR8:$lz, sub_8bit))>;
def : Pat<(and (loadi64 addr:$src), (add (shl 1, GR8:$lz), -1)),
(BZHI64rm addr:$src,
(INSERT_SUBREG (i64 (IMPLICIT_DEF)), GR8:$lz, sub_8bit))>;
def : Pat<(and (loadi64 addr:$src), (add (shl 1, GR8:$lz), -1)),
(BZHI64rm addr:$src,
(INSERT_SUBREG (i64 (IMPLICIT_DEF)), GR8:$lz, sub_8bit))>;
} // HasBMI2
let Predicates = [HasBMI] in {
def : Pat<(X86bextr GR32:$src1, GR32:$src2),