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| author | James Molloy <james.molloy@arm.com> | 2014-05-16 14:24:22 +0000 |
|---|---|---|
| committer | James Molloy <james.molloy@arm.com> | 2014-05-16 14:24:22 +0000 |
| commit | b32cee560d91bb2ec4325ad348ee322a42a3a3cf (patch) | |
| tree | 9f76cd48a66c8315b07a5a30a7ebe8798b4d42e3 /lib/Target/ARM/ARMSelectionDAGInfo.cpp | |
| parent | 74c8558965cc021a3e320dc778e1edc497bd2491 (diff) | |
| download | llvm-b32cee560d91bb2ec4325ad348ee322a42a3a3cf.tar.gz llvm-b32cee560d91bb2ec4325ad348ee322a42a3a3cf.tar.bz2 llvm-b32cee560d91bb2ec4325ad348ee322a42a3a3cf.tar.xz | |
Re-enable inline memcpy expansion for Thumb1.
Patch by Moritz Roth!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208994 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/ARM/ARMSelectionDAGInfo.cpp')
| -rw-r--r-- | lib/Target/ARM/ARMSelectionDAGInfo.cpp | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/lib/Target/ARM/ARMSelectionDAGInfo.cpp b/lib/Target/ARM/ARMSelectionDAGInfo.cpp index cb5812f6d2..7ce988773c 100644 --- a/lib/Target/ARM/ARMSelectionDAGInfo.cpp +++ b/lib/Target/ARM/ARMSelectionDAGInfo.cpp @@ -53,9 +53,10 @@ ARMSelectionDAGInfo::EmitTargetCodeForMemcpy(SelectionDAG &DAG, SDLoc dl, EVT VT = MVT::i32; unsigned VTSize = 4; unsigned i = 0; - const unsigned MAX_LOADS_IN_LDM = 6; - SDValue TFOps[MAX_LOADS_IN_LDM]; - SDValue Loads[MAX_LOADS_IN_LDM]; + // Emit a maximum of 4 loads in Thumb1 since we have fewer registers + const unsigned MAX_LOADS_IN_LDM = Subtarget->isThumb1Only() ? 4 : 6; + SDValue TFOps[6]; + SDValue Loads[6]; uint64_t SrcOff = 0, DstOff = 0; // Emit up to MAX_LOADS_IN_LDM loads, then a TokenFactor barrier, then the |