From a6094be53321bf974903263743425622738c0995 Mon Sep 17 00:00:00 2001 From: Anton Korobeynikov Date: Sun, 8 Jun 2008 10:24:13 +0000 Subject: [PATCH] Add win64 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52091 91177308-0d34-0410-b5e6-96231b3b80d8 --- docs/ReleaseNotes.html | 23 ++++++++++++++++------- 1 file changed, 16 insertions(+), 7 deletions(-) diff --git a/docs/ReleaseNotes.html b/docs/ReleaseNotes.html index e72f61ffe4b..82ba0c74b7e 100644 --- a/docs/ReleaseNotes.html +++ b/docs/ReleaseNotes.html @@ -306,17 +306,20 @@ faster:

area of passing and returning structures by value. llvm-gcc compiled code now interoperates very well on X86-64 systems with other compilers. +
  • Support for Win64 was added. This includes codegeneration itself, JIT + support and necessary changes to llvm-gcc.
    • +
  • The LLVM X86 backend now supports the support SSE 4.1 instruction set, and the llvm-gcc 4.2 front-end supports the SSE 4.1 compiler builtins. Various generic vector operations (insert/extract/shuffle) are much more efficient when SSE 4.1 is enabled. The JIT automatically takes advantage of these instructions, but llvm-gcc must be explicitly told to use them, e.g. with -march=penryn.
    • - +
  • The X86 backend now does a number of optimizations that aim to avoid converting numbers back and forth from SSE registers to the X87 floating point stack.
    • - +
  • The X86 backend supports stack realignment, which is particularly useful for vector code on OS's without 16-byte aligned stacks.
    • @@ -326,7 +329,7 @@ faster:

  • Trampolines (taking the address of a nested function) now work on Linux/x86-64.
    • - +
  • __builtin_prefetch is now compiled into the appropriate prefetch instructions instead of being ignored.
    • @@ -450,11 +453,17 @@ href="http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev">LLVMdev list.