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| author | Chris Lattner <sabre@nondot.org> | 2005-12-02 00:11:20 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2005-12-02 00:11:20 +0000 |
| commit | 986cb40953bdac68dcfd765b57d5be5197e5e138 (patch) | |
| tree | 39d3d150104667a3ed2b4a48c97f9cdf1995abb4 /llvm/lib/Target | |
| parent | 0142afd6c1a91182d0df0d87d4d34c34d4f8d914 (diff) | |
| download | bcm5719-llvm-986cb40953bdac68dcfd765b57d5be5197e5e138.tar.gz bcm5719-llvm-986cb40953bdac68dcfd765b57d5be5197e5e138.zip | |
add a note
llvm-svn: 24572
Diffstat (limited to 'llvm/lib/Target')
| -rw-r--r-- | llvm/lib/Target/X86/README.txt | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/README.txt b/llvm/lib/Target/X86/README.txt index c9f23d598be..57aec86d2e5 100644 --- a/llvm/lib/Target/X86/README.txt +++ b/llvm/lib/Target/X86/README.txt @@ -12,6 +12,12 @@ long long test(long long X, long long Y) { return X*Y; } by using the EAX result from the mul. We should add a similar node for DIVREM. +another case is: + +long long test(int X, int Y) { return (long long)X*Y; } + +... which should only be one imul instruction. + //===---------------------------------------------------------------------===// This should be one DIV/IDIV instruction, not a libcall: |
