Changes in directory llvm/lib/Target/X86:
README.txt updated: 1.135 -> 1.136 --- Log message: add a note. Our 64-bit shifts are ~30% slower than gcc's --- Diffs of the changes: (+2 -1) README.txt | 3 ++- 1 files changed, 2 insertions(+), 1 deletion(-) Index: llvm/lib/Target/X86/README.txt diff -u llvm/lib/Target/X86/README.txt:1.135 llvm/lib/Target/X86/README.txt:1.136 --- llvm/lib/Target/X86/README.txt:1.135 Sun Sep 17 15:25:45 2006 +++ llvm/lib/Target/X86/README.txt Mon Sep 18 00:36:54 2006 @@ -59,7 +59,8 @@ But that requires good 8-bit subreg support. - +64-bit shifts (in general) expand to really bad code. Instead of using +cmovs, we should expand to a conditional branch like GCC produces. //===---------------------------------------------------------------------===// _______________________________________________ llvm-commits mailing list llvm-commits@cs.uiuc.edu http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
