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Diffstat (limited to 'lib/Target/PowerPC/README.txt')
| -rw-r--r-- | lib/Target/PowerPC/README.txt | 21 |
1 files changed, 0 insertions, 21 deletions
diff --git a/lib/Target/PowerPC/README.txt b/lib/Target/PowerPC/README.txt index b6763aa..cc2ff96 100644 --- a/lib/Target/PowerPC/README.txt +++ b/lib/Target/PowerPC/README.txt @@ -1,7 +1,6 @@ //===- README.txt - Notes for improving PowerPC-specific code gen ---------===// TODO: -* gpr0 allocation * lmw/stmw pass a la arm load store optimizer for prolog/epilog ===-------------------------------------------------------------------------=== @@ -204,12 +203,6 @@ http://gcc.gnu.org/ml/gcc-patches/2006-02/msg00133.html ===-------------------------------------------------------------------------=== -Implement Newton-Rhapson method for improving estimate instructions to the -correct accuracy, and implementing divide as multiply by reciprocal when it has -more than one use. Itanium would want this too. - -===-------------------------------------------------------------------------=== - Compile offsets from allocas: int *%test() { @@ -536,20 +529,6 @@ void func(unsigned int *ret, float dx, float dy, float dz, float dw) { ===-------------------------------------------------------------------------=== -Complete the signed i32 to FP conversion code using 64-bit registers -transformation, good for PI. See PPCISelLowering.cpp, this comment: - - // FIXME: disable this lowered code. This generates 64-bit register values, - // and we don't model the fact that the top part is clobbered by calls. We - // 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 { i8, [3 x i8] } define void @bar(%struct.B* %b) { |
