From 2d1035def15030ae404b227747d0a28454ea32a9 Mon Sep 17 00:00:00 2001 From: Yiannis Tsiouris Date: Thu, 28 Feb 2013 16:59:10 +0000 Subject: [PATCH] Re-format comments (and check commit access) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176270 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/X86/X86FrameLowering.cpp | 32 ++++++++++++++--------------- 1 file changed, 15 insertions(+), 17 deletions(-) diff --git a/lib/Target/X86/X86FrameLowering.cpp b/lib/Target/X86/X86FrameLowering.cpp index a05cf5c3467..54cbd40274a 100644 --- a/lib/Target/X86/X86FrameLowering.cpp +++ b/lib/Target/X86/X86FrameLowering.cpp @@ -1386,7 +1386,6 @@ HasNestArgument(const MachineFunction *MF) { return false; } - /// GetScratchRegister - Get a temp register for performing work in the /// segmented stack and the Erlang/HiPE stack prologue. Depending on platform /// and the properties of the function either one or two registers will be @@ -1612,22 +1611,21 @@ X86FrameLowering::adjustForSegmentedStacks(MachineFunction &MF) const { #endif } -// Erlang programs may need a special prologue to handle the stack size they -// might need at runtime. That is because Erlang/OTP does not implement a C -// stack but uses a custom implementation of hybrid stack/heap -// architecture. (for more information see Eric Stenman's Ph.D. thesis: -// http://publications.uu.se/uu/fulltext/nbn_se_uu_diva-2688.pdf) -// -// -// CheckStack: -// temp0 = sp - MaxStack -// if( temp0 < SP_LIMIT(P) ) goto IncStack else goto OldStart -// OldStart: -// ... -// IncStack: -// call inc_stack # doubles the stack space -// temp0 = sp - MaxStack -// if( temp0 < SP_LIMIT(P) ) goto IncStack else goto OldStart +/// Erlang programs may need a special prologue to handle the stack size they +/// might need at runtime. That is because Erlang/OTP does not implement a C +/// stack but uses a custom implementation of hybrid stack/heap architecture. +/// (for more information see Eric Stenman's Ph.D. thesis: +/// http://publications.uu.se/uu/fulltext/nbn_se_uu_diva-2688.pdf) +/// +/// CheckStack: +/// temp0 = sp - MaxStack +/// if( temp0 < SP_LIMIT(P) ) goto IncStack else goto OldStart +/// OldStart: +/// ... +/// IncStack: +/// call inc_stack # doubles the stack space +/// temp0 = sp - MaxStack +/// if( temp0 < SP_LIMIT(P) ) goto IncStack else goto OldStart void X86FrameLowering::adjustForHiPEPrologue(MachineFunction &MF) const { const X86InstrInfo &TII = *TM.getInstrInfo(); MachineFrameInfo *MFI = MF.getFrameInfo();