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| author | Chris Lattner <sabre@nondot.org> | 2008-02-14 05:39:46 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2008-02-14 05:39:46 +0000 |
| commit | d67ee69608f1bacf812a602cc9eae968191e1ae5 (patch) | |
| tree | d76c49957a5d64d8ce159ece6644d42e2cf67f41 /lib/Target/X86/README-FPStack.txt | |
| parent | bcfb72a132f5b76d9dbafd978defc6ef6569521e (diff) | |
| download | external_llvm-d67ee69608f1bacf812a602cc9eae968191e1ae5.zip external_llvm-d67ee69608f1bacf812a602cc9eae968191e1ae5.tar.gz external_llvm-d67ee69608f1bacf812a602cc9eae968191e1ae5.tar.bz2 | |
This readme entry is done, testcase here: CodeGen/X86/zero-remat.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47106 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/README-FPStack.txt')
| -rw-r--r-- | lib/Target/X86/README-FPStack.txt | 14 |
1 files changed, 0 insertions, 14 deletions
diff --git a/lib/Target/X86/README-FPStack.txt b/lib/Target/X86/README-FPStack.txt index d94fa02..0dcbcbc 100644 --- a/lib/Target/X86/README-FPStack.txt +++ b/lib/Target/X86/README-FPStack.txt @@ -9,20 +9,6 @@ http://gcc.gnu.org/ml/gcc-patches/2004-04/msg00659.html //===---------------------------------------------------------------------===// -On darwin/x86, we should codegen: - - ret double 0.000000e+00 - -as fld0/ret, not as: - - movl $0, 4(%esp) - movl $0, (%esp) - fldl (%esp) - ... - ret - -//===---------------------------------------------------------------------===// - This should use fiadd on chips where it is profitable: double foo(double P, int *I) { return P+*I; } |