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| author | Craig Topper <craig.topper@gmail.com> | 2013-08-30 06:52:21 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@gmail.com> | 2013-08-30 06:52:21 +0000 |
| commit | b6ac30a15591a8dab3cff3f0891d7e1ca9476826 (patch) | |
| tree | d5667baefea62d45bac0b66e16c669adb96e336e /lib/Target/X86/X86InstrInfo.td | |
| parent | 5de35bc7303ac36714e9e8ad42987c86cabf9c74 (diff) | |
| download | llvm-b6ac30a15591a8dab3cff3f0891d7e1ca9476826.tar.gz llvm-b6ac30a15591a8dab3cff3f0891d7e1ca9476826.tar.bz2 llvm-b6ac30a15591a8dab3cff3f0891d7e1ca9476826.tar.xz | |
Teach X86 backend to create BMI2 BZHI instructions from (and X, (add (shl 1, Y), -1)). Fixes PR17038.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189653 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86InstrInfo.td')
| -rw-r--r-- | lib/Target/X86/X86InstrInfo.td | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/lib/Target/X86/X86InstrInfo.td b/lib/Target/X86/X86InstrInfo.td index c2d180713e..41e2c4435a 100644 --- a/lib/Target/X86/X86InstrInfo.td +++ b/lib/Target/X86/X86InstrInfo.td @@ -253,6 +253,7 @@ def X86andn_flag : SDNode<"X86ISD::ANDN", SDTBinaryArithWithFlags>; def X86blsi : SDNode<"X86ISD::BLSI", SDTIntUnaryOp>; def X86blsmsk : SDNode<"X86ISD::BLSMSK", SDTIntUnaryOp>; def X86blsr : SDNode<"X86ISD::BLSR", SDTIntUnaryOp>; +def X86bzhi : SDNode<"X86ISD::BZHI", SDTIntBinOp>; def X86mul_imm : SDNode<"X86ISD::MUL_IMM", SDTIntBinOp>; @@ -1856,6 +1857,15 @@ let Predicates = [HasBMI2], Defs = [EFLAGS] in { int_x86_bmi_bzhi_64, loadi64>, VEX_W; } +def : Pat<(X86bzhi GR32:$src1, GR32:$src2), + (BZHI32rr GR32:$src1, GR32:$src2)>; +def : Pat<(X86bzhi (loadi32 addr:$src1), GR32:$src2), + (BZHI32rm addr:$src1, GR32:$src2)>; +def : Pat<(X86bzhi GR64:$src1, GR64:$src2), + (BZHI64rr GR64:$src1, GR64:$src2)>; +def : Pat<(X86bzhi (loadi64 addr:$src1), GR64:$src2), + (BZHI64rm addr:$src1, GR64:$src2)>; + multiclass bmi_pdep_pext<string mnemonic, RegisterClass RC, X86MemOperand x86memop, Intrinsic Int, PatFrag ld_frag> { |