Jakob Stoklund Olesen 7e899cbb91 Correctly terminate a physreg redefined by an early clobber.
I don't have a test that fails because of this, but a test case like
CodeGen/X86/2009-12-01-EarlyClobberBug.ll exposes the problem.  EAX is
redefined by a tied early clobber operand on inline asm, and the live
range should look like this:

  %EAX,inf = [48r,64e:0)[64e,80r:1)  0@48r 1@64e

Previously, the two values got merged:

  %EAX,inf = [48r,80r:0)  0@48r

With this bug fixed, the REDEF_BY_EC VNInfo flag is no longer needed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149768 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04 05:41:20 +00:00
2012-01-01 08:16:56 +00:00
2012-01-31 23:18:33 +00:00

Low Level Virtual Machine (LLVM)
================================

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LLVM backend for 6502
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