diff options
Diffstat (limited to 'lib/Target/Mips/MipsSEISelLowering.cpp')
-rw-r--r-- | lib/Target/Mips/MipsSEISelLowering.cpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/lib/Target/Mips/MipsSEISelLowering.cpp b/lib/Target/Mips/MipsSEISelLowering.cpp index eb9a819aa3..969d730189 100644 --- a/lib/Target/Mips/MipsSEISelLowering.cpp +++ b/lib/Target/Mips/MipsSEISelLowering.cpp @@ -254,6 +254,16 @@ MipsSETargetLowering::allowsUnalignedMemoryAccesses(EVT VT, bool *Fast) const { MVT::SimpleValueType SVT = VT.getSimpleVT().SimpleTy; + if (Subtarget->systemSupportsUnalignedAccess()) { + // MIPS32r6/MIPS64r6 is required to support unaligned access. It's + // implementation defined whether this is handled by hardware, software, or + // a hybrid of the two but it's expected that most implementations will + // handle the majority of cases in hardware. + if (Fast) + *Fast = true; + return true; + } + switch (SVT) { case MVT::i64: case MVT::i32: |