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The patch is against revision 42247. -------------- next part -------------- A non-text attachment was scrubbed... Name: tailcall-src.patch Type: application/octet-stream Size: 62639 bytes Desc: not available URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20070923/4770302f/attachment.obj>

Hi Arnold, This is a very good first step! Thanks! Comments below. Evan Index: test/CodeGen/X86/constant-pool-remat-0.ll =================================================================== --- test/CodeGen/X86/constant-pool-remat-0.ll (revision 42247) +++ test/CodeGen/X86/constant-pool-remat-0.ll (working copy) @@ -1,8 +1,10 @@ ; RUN: llvm-as < %s | llc -march=x86-64 | grep LCPI | count 3 ; RUN: llvm-as < %s | llc -march=x86-64 -stats -info-output-file - | grep asm-printer | grep 6 ; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2 |...

...nt because qux pops arguments on return mulss LCPI1_0, %xmm0 addl $12, %esp ret $4 > Index: include/llvm/Target/TargetLowering.h > =================================================================== > --- include/llvm/Target/TargetLowering.h (revision 42247) > +++ include/llvm/Target/TargetLowering.h (working copy) > @@ -851,8 +851,18 @@ > virtual std::pair<SDOperand, SDOperand> > LowerCallTo(SDOperand Chain, const Type *RetTy, bool > RetTyIsSigned, > bool isVarArg, unsigned CallingConv, bool isTailCal...

...uments in order to allow tail call optimization in a general way. > > > > > > >> Index: include/llvm/Target/TargetLowering.h > >> =================================================================== > >> --- include/llvm/Target/TargetLowering.h (revision 42247) > >> +++ include/llvm/Target/TargetLowering.h (working copy) > >> @@ -851,8 +851,18 @@ > >> virtual std::pair<SDOperand, SDOperand> > >> LowerCallTo(SDOperand Chain, const Type *RetTy, bool > >> RetTyIsSigned, > >>...

...call optimization is turned on though. Also, we need to fold the subl into addl if possible. > > >> Index: include/llvm/Target/TargetLowering.h >> =================================================================== >> --- include/llvm/Target/TargetLowering.h (revision 42247) >> +++ include/llvm/Target/TargetLowering.h (working copy) >> @@ -851,8 +851,18 @@ >> virtual std::pair<SDOperand, SDOperand> >> LowerCallTo(SDOperand Chain, const Type *RetTy, bool >> RetTyIsSigned, >> bool isVarArg, unsigned CallingC...

...hat's not controlled by options. Ok then. >> >>> >>> >>>> Index: include/llvm/Target/TargetLowering.h >>>> =================================================================== >>>> --- include/llvm/Target/TargetLowering.h (revision 42247) >>>> +++ include/llvm/Target/TargetLowering.h (working copy) >>>> @@ -851,8 +851,18 @@ >>>> virtual std::pair<SDOperand, SDOperand> >>>> LowerCallTo(SDOperand Chain, const Type *RetTy, bool >>>> RetTyIsSigned, >>>...

...mod ata_generic 3837 0 pata_acpi 3701 0 pata_jmicron 2813 2 video 20674 0 output 2409 1 video e1000e 267701 0 ptp 9614 1 e1000e pps_core 11458 1 ptp ahci 42247 8 xhci_hcd 148886 0 dm_mirror 14384 0 dm_region_hash 12085 1 dm_mirror dm_log 9930 2 dm_mirror,dm_region_hash dm_mod 84209 2 dm_mirror,dm_log be2iscsi 99578 0 bnx2i 48096 0 cnic...