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Reapply bottom-up fast-isel, with several fixes for x86-32:

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- Check getBytesToPopOnReturn().
 - Eschew ST0 and ST1 for return values.
 - Fix the PIC base register initialization so that it doesn't ever
   fail to end up the top of the entry block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108039 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2010-07-10 09:00:22 +00:00
parent d737fcafc4
commit 84023e0fbe
26 changed files with 775 additions and 391 deletions
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3
include/llvm/CodeGen/CallingConvLower.h
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@@ -188,8 +188,7 @@ public:
/// CheckReturn - Analyze the return values of a function, returning
/// true if the return can be performed without sret-demotion, and
/// false otherwise.
bool CheckReturn(const SmallVectorImpl<EVT> &OutTys,
const SmallVectorImpl<ISD::ArgFlagsTy> &ArgsFlags,
bool CheckReturn(const SmallVectorImpl<ISD::OutputArg> &ArgsFlags,
CCAssignFn Fn);
/// AnalyzeCallOperands - Analyze the outgoing arguments to a call,