Anton Korobeynikov
4dd162f394
Cleanup stdcall / fastcall name mangling.
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This should fix alot of problems we saw so far, e.g. PRs 5851 & 2936
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95980 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-12 15:28:40 +00:00
Evan Cheng
f22f9b35d6
Do not emit callseq instructions around sibcalls. This eliminated some unnecessary stack adjustments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95475 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-06 03:28:46 +00:00
Dan Gohman
2392efef1b
Add explicit keywords.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72969 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-05 23:05:51 +00:00
Dan Gohman
6288b93f00
Fix X86MachineFunctionInfo's doxygen comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69127 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-15 01:20:18 +00:00
Dan Gohman
d735b8019b
Switch the MachineOperand accessors back to the short names like
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isReg, etc., from isRegister, etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57006 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-03 15:45:36 +00:00
Dan Gohman
57c3dac0df
Move the GlobalBaseReg field out of X86ISelDAGToDAG.cpp
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and X86FastISel.cpp into X86MachineFunction.h, so that it
can be shared, instead of having each selector keep track
of its own.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56825 91177308-0d34-0410-b5e6-96231b3b80d8
2008-09-30 00:58:23 +00:00
Dan Gohman
61a9213440
Implement an x86-64 ABI detail of passing structs by hidden first
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argument. The x86-64 ABI requires the incoming value of %rdi to
be copied to %rax on exit from a function that is returning a
large C struct.
Also, add a README-X86-64 entry detailing the missed optimization
opportunity and proposing an alternative approach.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50075 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 23:59:07 +00:00
Evan Cheng
0475ab58b8
Combine MovePCtoStack + POP32r into one instruction MOVPC32r so it can be moved if needed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45605 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-05 00:41:47 +00:00
Chris Lattner
4ee451de36
Remove attribution from file headers, per discussion on llvmdev.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45418 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-29 20:36:04 +00:00
Arnold Schwaighofer
c85e1716f0
Added tail call optimization to the x86 back end. It can be
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enabled by passing -tailcallopt to llc. The optimization is
performed if the following conditions are satisfied:
* caller/callee are fastcc
* elf/pic is disabled OR
elf/pic enabled + callee is in module + callee has
visibility protected or hidden
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42870 91177308-0d34-0410-b5e6-96231b3b80d8
2007-10-11 19:40:01 +00:00
Anton Korobeynikov
a2780e11ef
Move ReturnAddrIndex variable to X86MachineFunctionInfo structure. This fixed
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hard to catch bugs with retaddr lowering
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41104 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-15 17:12:32 +00:00
Evan Cheng
89d1659cf2
Use push / pop for prologues and epilogues.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39967 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-17 07:59:08 +00:00
Chris Lattner
d15dff24c6
rename X86FunctionInfo to X86MachineFunctionInfo to match the header file
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it is defined in.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36196 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17 17:21:52 +00:00
Chris Lattner
e87e1154a1
Various random and minor code cleanups.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30608 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-26 03:57:53 +00:00
Anton Korobeynikov
f824868ed9
Adding codegeneration for StdCall & FastCall calling conventions
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30549 91177308-0d34-0410-b5e6-96231b3b80d8
2006-09-20 22:03:51 +00:00
Evan Cheng
e5e228df19
Comments to appease sabre.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28737 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-09 06:25:10 +00:00
Evan Cheng
e8bd0a332a
Added X86FunctionInfo subclass of MachineFunction to record whether the
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function that is being lowered is forced to use FP. Currently this is only
true for main() / Cygwin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28703 91177308-0d34-0410-b5e6-96231b3b80d8
2006-06-06 23:30:24 +00:00
