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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35435 91177308-0d34-0410-b5e6-96231b3b80d8
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Chris Lattner 2007-03-28 18:17:19 +00:00
parent 995f55036f
commit 6ef3307062
1 changed files with 8 additions and 0 deletions
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8
lib/Target/X86/README.txt
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@ -23,6 +23,14 @@ generic code.
//===---------------------------------------------------------------------===//
CodeGen/X86/lea-3.ll:test3 should be a single LEA, not a shift/move. The X86
backend knows how to three-addressify this shift, but it appears the register
allocator isn't even asking it to do so in this case. We should investigate
why this isn't happening, it could have significant impact on other important
cases for X86 as well.
//===---------------------------------------------------------------------===//
This should be one DIV/IDIV instruction, not a libcall:
unsigned test(unsigned long long X, unsigned Y) {