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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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206885 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Lang Hames 2014-04-22 12:04:53 +00:00
parent c13297fa76
commit 20850bba80
1 changed files with 18 additions and 16 deletions
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2
lib/Target/X86/X86InstrInfo.td
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@ -2113,6 +2113,7 @@ def BZHIMask : ImmLeaf<i64, [{
return isMask_64(Imm) && (CountTrailingOnes_64(Imm) > 32);
}]>;
let Predicates = [HasBMI2] in {
def : Pat<(and GR64:$src, BZHIMask:$mask),
(BZHI64rr GR64:$src,
(INSERT_SUBREG (i64 (IMPLICIT_DEF)),
@ -2133,6 +2134,7 @@ def : Pat<(and GR64:$src, (add (shl 1, GR8:$lz), -1)),
def : Pat<(and (loadi64 addr:$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),