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Changed XXX to FIXME, and added comment to the README file

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llvm-svn: 43359
This commit is contained in:
Bill Wendling 2007-10-25 19:49:32 +00:00
parent d29fe31fcd
commit 27f7cac311
2 changed files with 9 additions and 1 deletions
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2
lib/CodeGen/BranchFolding.cpp
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@ -272,7 +272,7 @@ static unsigned ComputeCommonTailLength(MachineBasicBlock *MBB1,
while (I1 != MBB1->begin() && I2 != MBB2->begin()) {
--I1; --I2;
if (!I1->isIdenticalTo(I2) ||
// XXX: This check is dubious. It's used to get around a problem where
// FIXME: This check is dubious. It's used to get around a problem where
// people incorrectly expect inline asm directives to remain in the same
// relative order. This is untenable because normal compiler
// optimizations (like this one) may reorder and/or merge these

8
lib/CodeGen/README.txt
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@ -179,3 +179,11 @@ work.
The ocaml frametable structure supports liveness information. It would be good
to support it.
//===---------------------------------------------------------------------===//
The FIXME in ComputeCommonTailLength in BranchFolding.cpp needs to be
revisited. The check is there to work around a misuse of directives in inline
assembly.
//===---------------------------------------------------------------------===//