maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

[PowerPC] Add support for intrinsic llvm.ppc.eieio 

Add support for the intrinsic llvm.ppc.eieio to emit the instruction eieio.

Differential Revision: https://reviews.llvm.org/D69066
This commit is contained in:
Anil Mahmud 2020-02-03 12:34:44 -06:00 committed by Stefan Pintilie
parent b413e5c309
commit ab4d606421
3 changed files with 22 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
llvm/include/llvm/IR/IntrinsicsPowerPC.td
View File

@ -35,6 +35,8 @@ let TargetPrefix = "ppc" in { // All intrinsics start with "llvm.ppc.".
def int_ppc_sync : Intrinsic<[], [], []>;
// lwsync is sync 1
def int_ppc_lwsync : Intrinsic<[], [], []>;
// eieio instruction
def int_ppc_eieio : Intrinsic<[],[],[]>;
// Intrinsics used to generate ctr-based loops. These should only be
// generated by the PowerPC backend!

9
llvm/lib/Target/PowerPC/PPCInstrInfo.td
View File

@ -2325,10 +2325,15 @@ let isCodeGenOnly = 1 in {
}
}
// We used to have EIEIO as value but E[0-9A-Z] is a reserved name
def EnforceIEIO : XForm_24_eieio<31, 854, (outs), (ins),
"eieio", IIC_LdStLoad, []>;
def : Pat<(int_ppc_sync), (SYNC 0)>, Requires<[HasSYNC]>;
def : Pat<(int_ppc_lwsync), (SYNC 1)>, Requires<[HasSYNC]>;
def : Pat<(int_ppc_sync), (MSYNC)>, Requires<[HasOnlyMSYNC]>;
def : Pat<(int_ppc_lwsync), (MSYNC)>, Requires<[HasOnlyMSYNC]>;
def : Pat<(int_ppc_eieio), (EnforceIEIO)>;
//===----------------------------------------------------------------------===//
// PPC32 Arithmetic Instructions.
@ -4176,10 +4181,6 @@ def ISYNC : XLForm_2_ext<19, 150, 0, 0, 0, (outs), (ins),
def ICBI : XForm_1a<31, 982, (outs), (ins memrr:$src),
"icbi $src", IIC_LdStICBI, []>;
// We used to have EIEIO as value but E[0-9A-Z] is a reserved name
def EnforceIEIO : XForm_24_eieio<31, 854, (outs), (ins),
"eieio", IIC_LdStLoad, []>;
def WAIT : XForm_24_sync<31, 30, (outs), (ins i32imm:$L),
"wait $L", IIC_LdStLoad, []>;

15
llvm/test/CodeGen/PowerPC/eieio.ll Normal file
View File

@ -0,0 +1,15 @@
; RUN: llc -mtriple=powerpc64le-unknown-linux-gnu < %s \
; RUN: -verify-machineinstrs -ppc-asm-full-reg-names \
; RUN: -ppc-vsr-nums-as-vr | FileCheck %s
define void @eieio_test() {
; CHECK-LABEL: @eieio_test
; CHECK: eieio
; CHECK-NEXT: blr
entry:
tail call void @llvm.ppc.eieio()
ret void
}
declare void @llvm.ppc.eieio()