LLVM Instruction Scheduling in RISC-V
I am looking at instruction scheduling in LLVM for RISC-V backend. I understood there are two ways of scheduling (ScheduleDAGRRList & MachineScheduler). From debug logs i can RISC-V uses ScheduleDAGRRList approach.
Is MachineScheduler is better than ScheduleDAGRRList? If so, how can i enable MachineScheduler for RISC-V ?
I tried llc -enable-misched file.ll, but with no luck.
clang llvm scheduler riscv llc
asked Nov 15 '18 at 7:22
harryharry
16
add a comment |
I am looking at instruction scheduling in LLVM for RISC-V backend. I understood there are two ways of scheduling (ScheduleDAGRRList & MachineScheduler). From debug logs i can RISC-V uses ScheduleDAGRRList approach.
Is MachineScheduler is better than ScheduleDAGRRList? If so, how can i enable MachineScheduler for RISC-V ?
I tried llc -enable-misched file.ll, but with no luck.
clang llvm scheduler riscv llc
asked Nov 15 '18 at 7:22
harryharry
16
add a comment |
I am looking at instruction scheduling in LLVM for RISC-V backend. I understood there are two ways of scheduling (ScheduleDAGRRList & MachineScheduler). From debug logs i can RISC-V uses ScheduleDAGRRList approach.
Is MachineScheduler is better than ScheduleDAGRRList? If so, how can i enable MachineScheduler for RISC-V ?
I tried llc -enable-misched file.ll, but with no luck.
clang llvm scheduler riscv llc
asked Nov 15 '18 at 7:22
harryharry
16
I am looking at instruction scheduling in LLVM for RISC-V backend. I understood there are two ways of scheduling (ScheduleDAGRRList & MachineScheduler). From debug logs i can RISC-V uses ScheduleDAGRRList approach.
Is MachineScheduler is better than ScheduleDAGRRList? If so, how can i enable MachineScheduler for RISC-V ?
I tried llc -enable-misched file.ll, but with no luck.
clang llvm scheduler riscv llc
clang llvm scheduler riscv llc
asked Nov 15 '18 at 7:22
harryharry
16
asked Nov 15 '18 at 7:22
harryharry
16
asked Nov 15 '18 at 7:22
harryharry
16
asked Nov 15 '18 at 7:22
harryharry
16
asked Nov 15 '18 at 7:22
harryharry
16
16
add a comment |
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ifUsing("editor", function ()
StackExchange.using("externalEditor", function ()
StackExchange.using("snippets", function ()
StackExchange.snippets.init();
);
);
, "code-snippets");
StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "1"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);
else
createEditor();
);
function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);
);
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53314283%2fllvm-instruction-scheduling-in-risc-v%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53314283%2fllvm-instruction-scheduling-in-risc-v%23new-answer', 'question_page');
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
