Changes in directory llvm/lib/Target/PowerPC:
README.txt updated: 1.84 -> 1.85 README_ALTIVEC.txt updated: 1.21 -> 1.22 --- Log message: add a note, move an altivec todo to the altivec list. --- Diffs of the changes: (+16 -7) README.txt | 13 ++++++------- README_ALTIVEC.txt | 10 ++++++++++ 2 files changed, 16 insertions(+), 7 deletions(-) Index: llvm/lib/Target/PowerPC/README.txt diff -u llvm/lib/Target/PowerPC/README.txt:1.84 llvm/lib/Target/PowerPC/README.txt:1.85 --- llvm/lib/Target/PowerPC/README.txt:1.84 Sun Apr 2 01:20:00 2006 +++ llvm/lib/Target/PowerPC/README.txt Thu Apr 13 11:48:00 2006 @@ -551,12 +551,11 @@ ===-------------------------------------------------------------------------=== -extract_vector_elt of an arbitrary constant vector can be done with the -following instructions: +Complete the signed i32 to FP conversion code using 64-bit registers +transformation, good for PI. See PPCISelLowering.cpp, this comment: -vTemp = vec_splat(v0,2); // 2 is the element the src is in. -vec_ste(&destloc,0,vTemp); + // 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); -We can do an arbitrary non-constant value by using lvsr/perm/ste. - -===-------------------------------------------------------------------------=== Index: llvm/lib/Target/PowerPC/README_ALTIVEC.txt diff -u llvm/lib/Target/PowerPC/README_ALTIVEC.txt:1.21 llvm/lib/Target/PowerPC/README_ALTIVEC.txt:1.22 --- llvm/lib/Target/PowerPC/README_ALTIVEC.txt:1.21 Wed Apr 12 14:07:14 2006 +++ llvm/lib/Target/PowerPC/README_ALTIVEC.txt Thu Apr 13 11:48:00 2006 @@ -138,3 +138,13 @@ -> C = vsldoi A, B, 4 //===----------------------------------------------------------------------===// + +extract_vector_elt of an arbitrary constant vector can be done with the +following instructions: + +vTemp = vec_splat(v0,2); // 2 is the element the src is in. +vec_ste(&destloc,0,vTemp); + +We can do an arbitrary non-constant value by using lvsr/perm/ste. + +//===----------------------------------------------------------------------===// _______________________________________________ llvm-commits mailing list llvm-commits@cs.uiuc.edu http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
