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| author | Pirama Arumuga Nainar <pirama@google.com> | 2015-05-06 11:46:36 -0700 |
|---|---|---|
| committer | Pirama Arumuga Nainar <pirama@google.com> | 2015-05-18 10:52:30 -0700 |
| commit | 2c3e0051c31c3f5b2328b447eadf1cf9c4427442 (patch) | |
| tree | c0104029af14e9f47c2ef58ca60e6137691f3c9b /lib/Target/SystemZ/SystemZISelDAGToDAG.cpp | |
| parent | e1bc145815f4334641be19f1c45ecf85d25b6e5a (diff) | |
| download | external_llvm-2c3e0051c31c3f5b2328b447eadf1cf9c4427442.zip external_llvm-2c3e0051c31c3f5b2328b447eadf1cf9c4427442.tar.gz external_llvm-2c3e0051c31c3f5b2328b447eadf1cf9c4427442.tar.bz2 | |
Update aosp/master LLVM for rebase to r235153
Change-Id: I9bf53792f9fc30570e81a8d80d296c681d005ea7
(cherry picked from commit 0c7f116bb6950ef819323d855415b2f2b0aad987)
Diffstat (limited to 'lib/Target/SystemZ/SystemZISelDAGToDAG.cpp')
| -rw-r--r-- | lib/Target/SystemZ/SystemZISelDAGToDAG.cpp | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/lib/Target/SystemZ/SystemZISelDAGToDAG.cpp b/lib/Target/SystemZ/SystemZISelDAGToDAG.cpp index a52aa25..1a58b53 100644 --- a/lib/Target/SystemZ/SystemZISelDAGToDAG.cpp +++ b/lib/Target/SystemZ/SystemZISelDAGToDAG.cpp @@ -898,6 +898,9 @@ SDNode *SystemZDAGToDAGISel::tryRISBGZero(SDNode *N) { } unsigned Opcode = SystemZ::RISBG; + // Prefer RISBGN if available, since it does not clobber CC. + if (Subtarget->hasMiscellaneousExtensions()) + Opcode = SystemZ::RISBGN; EVT OpcodeVT = MVT::i64; if (VT == MVT::i32 && Subtarget->hasHighWord()) { Opcode = SystemZ::RISBMux; @@ -945,9 +948,13 @@ SDNode *SystemZDAGToDAGISel::tryRxSBG(SDNode *N, unsigned Opcode) { // See whether we can avoid an AND in the first operand by converting // ROSBG to RISBG. - if (Opcode == SystemZ::ROSBG && detectOrAndInsertion(Op0, RxSBG[I].Mask)) + if (Opcode == SystemZ::ROSBG && detectOrAndInsertion(Op0, RxSBG[I].Mask)) { Opcode = SystemZ::RISBG; - + // Prefer RISBGN if available, since it does not clobber CC. + if (Subtarget->hasMiscellaneousExtensions()) + Opcode = SystemZ::RISBGN; + } + EVT VT = N->getValueType(0); SDValue Ops[5] = { convertTo(SDLoc(N), MVT::i64, Op0), |