Changes in directory llvm/lib/Target/X86:
README.txt updated: 1.30 -> 1.31 --- Log message: add some notes --- Diffs of the changes: (+24 -0) README.txt | 24 ++++++++++++++++++++++++ 1 files changed, 24 insertions(+) Index: llvm/lib/Target/X86/README.txt diff -u llvm/lib/Target/X86/README.txt:1.30 llvm/lib/Target/X86/README.txt:1.31 --- llvm/lib/Target/X86/README.txt:1.30 Sun Jan 29 03:46:06 2006 +++ llvm/lib/Target/X86/README.txt Mon Jan 30 18:20:38 2006 @@ -286,3 +286,27 @@ When compiled with unsafemath enabled, "main" should enable SSE DAZ mode and other fast SSE modes. + +//===---------------------------------------------------------------------===// + +cd Regression/CodeGen/X86 +llvm-as < setuge.ll | llc -march=x86 -mcpu=yonah -enable-x86-sse + +_cmp: + subl $4, %esp +1) leal 20(%esp), %eax + movss 12(%esp), %xmm0 +1) leal 16(%esp), %ecx + ucomiss 8(%esp), %xmm0 + cmovb %ecx, %eax +2) movss (%eax), %xmm0 +2) movss %xmm0, (%esp) + flds (%esp) + addl $4, %esp + ret + + +1) These LEA's should be adds. This is tricky because they are FrameIndex's + before prolog-epilog rewriting. +2) We shouldn't load into XMM regs only to store it back. + _______________________________________________ llvm-commits mailing list llvm-commits@cs.uiuc.edu http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
