This is an archive of the discontinued LLVM Phabricator instance.

Differential D131980

[Passes] Don't run tail-call-elim in -O1
AbandonedPublic

Authored by aeubanks on Aug 16 2022, 10:33 AM.

Details

Reviewers
spatel
nikic
xbolva00
Summary

Following up from D130374.

-O1 explicitly tries to not run passes that hurt debuggability too much.
tail-call-elim hurts debuggability, so don't run it under -O1.

Diff Detail

Event Timeline

aeubanks created this revision.Aug 16 2022, 10:33 AM
Herald added a project: Restricted Project. · View Herald TranscriptAug 16 2022, 10:33 AM
Herald added subscribers: kosarev, pmatos, asb and 8 others. · View Herald Transcript
aeubanks requested review of this revision.Aug 16 2022, 10:33 AM
Herald added projects: Restricted Project, Restricted Project. · View Herald TranscriptAug 16 2022, 10:33 AM
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aeubanks added reviewers: spatel, nikic, xbolva00.Aug 16 2022, 10:33 AM
spatel accepted this revision.Aug 16 2022, 10:52 AM

LGTM
These clang tests are just awful, but I don't have the patience to fix them...

llvm/lib/Passes/PassBuilderPipelines.cpp
244–245

Update this comment? IIUC, we are decisively saying that tail call elim is not worth the impact to debuggability for -O1. That way, someone -- possibly me again :) -- won't try to unknowingly change this.

This revision is now accepted and ready to land.Aug 16 2022, 10:52 AM
efriedma added a subscriber: efriedma.Aug 16 2022, 10:54 AM

Are you concerned about tail-call marking, or the recursive call->loop transform?

aeubanks updated this revision to Diff 453070.Aug 16 2022, 10:56 AM

delete comment

aeubanks added a comment.Aug 16 2022, 10:56 AM
In D131980#3726750, @efriedma wrote:

Are you concerned about tail-call marking, or the recursive call->loop transform?

specifically tail call marking

we have symbolizers that stopped displaying some frames with this change that we expect to work under -O1

efriedma added a comment.Aug 16 2022, 11:07 AM

If you're specifically concerned about sibcall (call->jmp) optimization in the backend, it might be better to adjust the backend to avoid sibcalls at -O1, as opposed to messing with optimization passes. (i.e. make -fno-optimize-sibling-calls the default at -O1.) "tail" markings are useful for other purposes, like alias analysis, and I don't really want every optimization pass/frontend that might add "tail" markings to worry about the optimization level.

Harbormaster completed remote builds in B181577: Diff 453070.Aug 16 2022, 11:32 AM
aeubanks abandoned this revision.Aug 18 2022, 1:55 PM

will use Eli's suggestion instead

Large Diff

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Diff 453070

clang/test/CodeGen/aarch64-ls64-inline-asm.c

clang/test/CodeGen/aarch64-neon-vcmla.c

clang/test/CodeGen/aarch64-sve-acle-__ARM_FEATURE_SVE_VECTOR_OPERATORS.c

clang/test/CodeGen/aarch64-sve-acle-__ARM_FEATURE_SVE_VECTOR_OPERATORS.cpp

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_abd.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_abs.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_acge.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_acgt.c

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clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_aclt.c

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clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_adda.c

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clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_ldnt1.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_len-bfloat.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_len.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_lsl.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_lsr.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_mad.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_matmul_fp32.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_matmul_fp64.c

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clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_maxnm.c

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clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_mov.c

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clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_qdecb.c

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clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_qdecw.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_qincb.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_qincd.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_qinch.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_qincp.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_qincw.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_qsub.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_rbit.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_rdffr.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_recpe.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_recps.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_recpx.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_reinterpret.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_rev-bfloat.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_rev.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_revb.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_revh.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_revw.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_rinta.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_rinti.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_rintm.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_rintn.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_rintp.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_rintx.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_rintz.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_rsqrte.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_rsqrts.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_scale.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_sel-bfloat.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_sel.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_set2-bfloat.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_set2.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_set3-bfloat.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_set3.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_set4-bfloat.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_set4.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_setffr.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_splice-bfloat.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_splice.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_sqrt.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_st1-bfloat.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_st1.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_st1b.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_st1h.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_st1w.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_st2-bfloat.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_st2.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_st3-bfloat.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_st3.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_st4-bfloat.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_st4.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_stnt1-bfloat.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_stnt1.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_sub.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_subr.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_sudot.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_tbl-bfloat.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_tbl.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_tmad.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_trn1-bfloat.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_trn1-fp64-bfloat.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_trn1-fp64.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_trn1.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_trn2-bfloat.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_trn2-fp64-bfloat.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_trn2-fp64.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_trn2.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_tsmul.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_tssel.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_unpkhi.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_unpklo.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_usdot.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_uzp1-bfloat.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_uzp1-fp64-bfloat.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_uzp1-fp64.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_uzp1.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_uzp2-bfloat.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_uzp2-fp64-bfloat.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_uzp2-fp64.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_uzp2.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_whilele.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_whilelt.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_wrffr.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_zip1-bfloat.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_zip1-fp64-bfloat.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_zip1-fp64.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_zip1.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_zip2-bfloat.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_zip2-fp64-bfloat.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_zip2-fp64.c

clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_zip2.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_aba.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_abalb.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_abalt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_abdlb.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_abdlt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_adalp.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_adclb.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_adclt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_addhnb.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_addhnt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_addlb.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_addlbt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_addlt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_addp.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_addwb.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_addwt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_aesd.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_aese.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_aesimc.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_aesmc.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_bcax.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_bdep.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_bext.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_bgrp.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_bsl.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_bsl1n.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_bsl2n.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_cadd.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_cdot.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_cmla.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_cvtlt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_cvtnt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_cvtx.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_cvtxnt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_eor3.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_eorbt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_eortb.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_hadd.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_histcnt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_histseg.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_hsub.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_hsubr.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_ldnt1.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_ldnt1sb.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_ldnt1sh.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_ldnt1sw.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_ldnt1ub.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_ldnt1uh.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_ldnt1uw.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_logb.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_match.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_maxnmp.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_maxp.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_minnmp.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_minp.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_mla.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_mlalb.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_mlalt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_mls.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_mlslb.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_mlslt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_movlb.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_movlt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_mul.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_mullb.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_mullt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_nbsl.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_nmatch.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_pmul.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_pmullb.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_pmullb_128.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_pmullt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_pmullt_128.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_qabs.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_qadd.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_qcadd.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_qdmlalb.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_qdmlalbt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_qdmlalt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_qdmlslb.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_qdmlslbt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_qdmlslt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_qdmulh.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_qdmullb.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_qdmullt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_qneg.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_qrdcmlah.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_qrdmlah.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_qrdmlsh.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_qrdmulh.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_qrshl.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_qrshrnb.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_qrshrnt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_qrshrunb.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_qrshrunt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_qshl.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_qshlu.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_qshrnb.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_qshrnt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_qshrunb.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_qshrunt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_qsub.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_qsubr.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_qxtnb.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_qxtnt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_qxtunb.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_qxtunt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_raddhnb.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_raddhnt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_rax1.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_recpe.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_rhadd.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_rshl.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_rshr.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_rshrnb.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_rshrnt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_rsqrte.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_rsra.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_rsubhnb.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_rsubhnt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_sbclb.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_sbclt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_shllb.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_shllt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_shrnb.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_shrnt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_sli.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_sm4e.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_sm4ekey.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_sqadd.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_sra.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_sri.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_stnt1.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_stnt1b.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_stnt1h.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_stnt1w.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_subhnb.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_subhnt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_sublb.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_sublbt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_sublt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_subltb.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_subwb.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_subwt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_tbl2-bfloat.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_tbl2.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_tbx-bfloat.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_tbx.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_uqadd.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_whilege.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_whilegt.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_whilerw-bfloat.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_whilerw.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_whilewr-bfloat.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_whilewr.c

clang/test/CodeGen/aarch64-sve2-intrinsics/acle_sve2_xar.c

clang/test/CodeGen/aarch64_neon_sve_bridge_intrinsics/acle_neon_sve_bridge_dup_neonq.c

clang/test/CodeGen/aarch64_neon_sve_bridge_intrinsics/acle_neon_sve_bridge_get_neonq.c

clang/test/CodeGen/aarch64_neon_sve_bridge_intrinsics/acle_neon_sve_bridge_set_neonq.c

clang/test/CodeGen/atomic-ops-libcall.c

clang/test/CodeGen/attr-arm-sve-vector-bits-bitcast.c

clang/test/CodeGen/attr-arm-sve-vector-bits-call.c

clang/test/CodeGen/attr-arm-sve-vector-bits-cast.c

clang/test/CodeGen/attr-arm-sve-vector-bits-globals.c

clang/test/CodeGenCXX/RelativeVTablesABI/diamond-virtual-inheritance.cpp

clang/test/CodeGenCXX/RelativeVTablesABI/multiple-inheritance.cpp

clang/test/CodeGenCXX/microsoft-abi-dynamic-cast.cpp

clang/test/CodeGenCXX/microsoft-abi-typeid.cpp

clang/test/CodeGenCXX/wasm-args-returns.cpp

llvm/lib/Passes/PassBuilderPipelines.cpp

Show First 20 Lines • Show All 235 Lines • ▼ Show 20 Linesstatic void addAnnotationRemarksPass(ModulePassManager &MPM) {
MPM.addPass(createModuleToFunctionPassAdaptor(AnnotationRemarksPass())); MPM.addPass(createModuleToFunctionPassAdaptor(AnnotationRemarksPass()));
} }
// Helper to check if the current compilation phase is preparing for LTO // Helper to check if the current compilation phase is preparing for LTO
static bool isLTOPreLink(ThinOrFullLTOPhase Phase) { static bool isLTOPreLink(ThinOrFullLTOPhase Phase) {
return Phase == ThinOrFullLTOPhase::ThinLTOPreLink || return Phase == ThinOrFullLTOPhase::ThinLTOPreLink ||
Phase == ThinOrFullLTOPhase::FullLTOPreLink; Phase == ThinOrFullLTOPhase::FullLTOPreLink;
} }
// TODO: Investigate the cost/benefit of tail call elimination on debugging.
FunctionPassManager FunctionPassManager
spatelUnsubmitted
Not Done
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Update this comment? IIUC, we are decisively saying that tail call elim is not worth the impact to debuggability for -O1. That way, someone -- possibly me again :) -- won't try to unknowingly change this.

spatel: Update this comment? IIUC, we are decisively saying that tail call elim is not worth the impact…
PassBuilder::buildO1FunctionSimplificationPipeline(OptimizationLevel Level, PassBuilder::buildO1FunctionSimplificationPipeline(OptimizationLevel Level,
ThinOrFullLTOPhase Phase) { ThinOrFullLTOPhase Phase) {
FunctionPassManager FPM; FunctionPassManager FPM;
// Form SSA out of local memory accesses after breaking apart aggregates into // Form SSA out of local memory accesses after breaking apart aggregates into
// scalars. // scalars.
FPM.addPass(SROAPass()); FPM.addPass(SROAPass());
▲ Show 20 Lines • Show All 990 Lines • ▼ Show 20 LinesPassBuilder::buildModuleOptimizationPipeline(OptimizationLevel Level,
OptimizePM.addPass(InstSimplifyPass()); OptimizePM.addPass(InstSimplifyPass());
// This hoists/decomposes div/rem ops. It should run after other sink/hoist // This hoists/decomposes div/rem ops. It should run after other sink/hoist
// passes to avoid re-sinking, but before SimplifyCFG because it can allow // passes to avoid re-sinking, but before SimplifyCFG because it can allow
// flattening of blocks. // flattening of blocks.
OptimizePM.addPass(DivRemPairsPass()); OptimizePM.addPass(DivRemPairsPass());
// Try to annotate calls that were created during optimization. // Try to annotate calls that were created during optimization.
// Don't run on -O1 as this can hurt debuggability.
if (Level.getSpeedupLevel() > 1)
OptimizePM.addPass(TailCallElimPass()); OptimizePM.addPass(TailCallElimPass());
// LoopSink (and other loop passes since the last simplifyCFG) might have // LoopSink (and other loop passes since the last simplifyCFG) might have
// resulted in single-entry-single-exit or empty blocks. Clean up the CFG. // resulted in single-entry-single-exit or empty blocks. Clean up the CFG.
OptimizePM.addPass( OptimizePM.addPass(
SimplifyCFGPass(SimplifyCFGOptions().convertSwitchRangeToICmp(true))); SimplifyCFGPass(SimplifyCFGOptions().convertSwitchRangeToICmp(true)));
// Add the core optimizing pipeline. // Add the core optimizing pipeline.
MPM.addPass(createModuleToFunctionPassAdaptor(std::move(OptimizePM), MPM.addPass(createModuleToFunctionPassAdaptor(std::move(OptimizePM),
▲ Show 20 Lines • Show All 639 Lines • Show Last 20 Lines

llvm/test/CodeGen/AMDGPU/simplify-libcalls.ll

llvm/test/Other/new-pm-defaults.ll

llvm/test/Other/new-pm-thinlto-defaults.ll

llvm/test/Other/new-pm-thinlto-postlink-pgo-defaults.ll

llvm/test/Other/new-pm-thinlto-postlink-samplepgo-defaults.ll

llvm/test/Transforms/PhaseOrdering/X86/ctlz-loop.ll

llvm/test/Transforms/PhaseOrdering/min-max-abs-cse.ll

llvm/test/Transforms/PhaseOrdering/minmax.ll