search for: pseudoop

Displaying 6 results from an estimated 6 matches for "pseudoop".

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2016 Jan 15
2
Expanding a PseudoOp and accessing the DAG
On 1/15/2016 2:57 PM, Phil Tomson wrote: > > > I see the following in my SelectCode (in XSTGGenDGISel.inc): > > > /*2235*/ OPC_SwitchOpcode /*2 cases */, 27, > TARGET_VAL(XSTGISD::ADDR_NORMAL),// ->2266 > /*2239*/ OPC_RecordChild0, // #1 = $addr > /*2240*/ OPC_MoveChild, 0, > /*2242*/ OPC_CheckOpcode,
2016 Jan 15
2
Expanding a PseudoOp and accessing the DAG
On 1/15/2016 1:08 PM, Phil Tomson wrote: > > Ah, I see, the defm is a multi-class so I needed to change it to: > > def: Pat<(load (XSTGADDR_NORMAL tglobaladdr:$addr)), > (LOADI64_RI tglobaladdr:$addr, 0)>; > // Match load from a relocatable address to a load with GRP: > def: Pat<(load (XSTGADDR_USE_GRP tglobaladdr:$addr)), > (LOADI64_RI
2016 Jan 13
2
Expanding a PseudoOp and accessing the DAG
I've got this PseudoOp defined: def SDT_RELADDR : SDTypeProfile<1, 2, [SDTCisInt<0>, SDTCisInt<1>]>; def XSTGRELADDR : SDNode<"XSTGISD::RELADDR", SDT_RELADDR>; let Constraints = "$dst = $addr" in { //, Uses= [GRP] in { def RelAddr : XSTGPseudo< (ou...
2016 Jan 13
2
Expanding a PseudoOp and accessing the DAG
On Wed, Jan 13, 2016 at 2:08 PM, Krzysztof Parzyszek via llvm-dev < llvm-dev at lists.llvm.org> wrote: > On 1/13/2016 2:26 PM, Phil Tomson via llvm-dev wrote: > >> I've got this PseudoOp defined: >> >> def SDT_RELADDR : SDTypeProfile<1, 2, [SDTCisInt<0>, SDTCisInt<1>]>; >> def XSTGRELADDR : SDNode<"XSTGISD::RELADDR", SDT_RELADDR>; >> >> >> let Constraints = "$dst = $addr" in { //, Uses= [GRP...
2016 Jan 15
2
Expanding a PseudoOp and accessing the DAG
On Thu, Jan 14, 2016 at 6:05 AM, Krzysztof Parzyszek < kparzysz at codeaurora.org> wrote: > On 1/13/2016 4:47 PM, Phil Tomson wrote: > >> >> First off, I got this idea from the LLVM Cookbook chapter 8: Writing an >> LLVM Backend: Lowering to multiple instructions. (now I'm having my >> doubts as to whether this is the right approach) >> > >
2007 Aug 09
1
[LLVMdev] Tail call optimization thoughts
...*else emit regular function call with same calling conventions 3.)lower of the return: *if we are dealing with a realtailcall (getIsRealTailCall) look for REALTAILCALL use its operands to emit a TC_RETURN node holding stacksize, tailcallee the tc_return node would again be a pseudoop *else lower normal return When generating the epilog the two operands of the the tc_return machine instruction are used to emit code that adjust the stackpointer and jumps to the tailcallee (either label or register). Like it is done for EH_RETURN. in X86RegisterInfo.cpp we would then h...