Changes in directory llvm/lib/Target/PowerPC:
README.txt updated: 1.75 -> 1.76 --- Log message: Add a note about the MUL -> FMADD vector bug. --- Diffs of the changes: (+10 -0) README.txt | 10 ++++++++++ 1 files changed, 10 insertions(+) Index: llvm/lib/Target/PowerPC/README.txt diff -u llvm/lib/Target/PowerPC/README.txt:1.75 llvm/lib/Target/PowerPC/README.txt:1.76 --- llvm/lib/Target/PowerPC/README.txt:1.75 Sat Mar 18 23:33:30 2006 +++ llvm/lib/Target/PowerPC/README.txt Sun Mar 19 16:08:08 2006 @@ -536,3 +536,13 @@ bar (x); } +===-------------------------------------------------------------------------=== + +Altivec: Codegen'ing MUL with vector FMADD should add -0.0, not 0.0: +http://gcc.gnu.org/bugzilla/show_bug.cgi?id=8763 + +We need to codegen -0.0 vector efficiently (no constant pool load). + +When -ffast-math is on, we can use 0.0. + +===-------------------------------------------------------------------------=== _______________________________________________ llvm-commits mailing list llvm-commits@cs.uiuc.edu http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
