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| -rw-r--r-- | lib/Target/PowerPC/README.txt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Target/PowerPC/README.txt b/lib/Target/PowerPC/README.txt index dbc455422e..f95f94d444 100644 --- a/lib/Target/PowerPC/README.txt +++ b/lib/Target/PowerPC/README.txt @@ -490,6 +490,10 @@ transformation, good for PI. See PPCISelLowering.cpp, this comment: // need to flag these together so that the value isn't live across a call. //setOperationAction(ISD::SINT_TO_FP, MVT::i32, Custom); +Also, if the registers are spilled to the stack, we have to ensure that all +64-bits of them are save/restored, otherwise we will miscompile the code. It +sounds like we need to get the 64-bit register classes going. + ===-------------------------------------------------------------------------=== %struct.B = type { ubyte, [3 x ubyte] } |